bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of chaos assisted sine cosine algorithm on wind–solar integrated hydrothermal scheduling problem
Authors: Dasgupta Koustav , Roy Provas Kumar , Mukherjee V. 
Published: February 2023

AbstractIn recent times, renewable energy sources are essential for generating low‐cost, pollution‐free power. Since the last two decades, hydrothermal coordination system has been used to fulfill the demand power. The traditional generating model's two biggest flaws are high generation cost and excessive fossil fuel emission. In the proposed work, generation process of traditional hydrothermal scheduling (HTS) has been improved by integrating wind–solar energy. To overcome current issues of HTS, that is, excessive emission and generation cost, hydrothermal–solar–wind scheduling (HTSWS) problem has been introduced where two wind and two solar power generating units have been considered with four hydro and three thermal power generating units. Here, effective performance of low cost‐emission based proposed HTSWS has been examined by using chaos‐based sine cosine algorithm (SCA) (CSCA). Chaos has been used in sine cosine function of SCA to improve searching process for finding global optimal results. The proposed CSCA has been used to investigate three separate situations of standard HTS and recommended HTSWS problems including generation cost, emission, and combined cost‐emission. The cost of generation and emissions from conventional HTS can be reduced by 11% and 68%, respectively, by the suggested renewable energy source‐based generation model. The results of several case studies of proposed HTSWS and standard HTS reveal that wind–solar energy is effective in the HTS issue, and chaos assists in the SCA to improve its optimization process. In this study, effectiveness and robustness of the CSCA have been demonstrated by comparing the CSCA‐based results to existing methods for the challenges under consideration.
Design, synthesis, antifungal activity and molecular docking of ring‐opened pimprinine derivative containing (thio)amide structure
Authors: Cheng Lan , Liu Jing‐Rui , Liu Jia‐Mu , Guo Dale , Deng Fang , Bian Qiang , Zhang Haifeng , Han Xinya , Ali Abdallah S , Zhang Wei‐Hua , Zhang Ming‐Zhi , Gu Yu‐Cheng 
Published: February 2023

AbstractBACKGROUNDTo obtain new environmentally friendly fungicides, we used the natural product pimprinine as the lead compound, and designed and synthesized two series of ring‐opening derivatives of pimprinine containing amide/thioamide. We then studied their antifungal activity against six common plant pathogenic fungi in vitro.RESULTSMost of the target compounds have good antifungal activity against six important plant pathogenic fungi in vitro. At a concentration of 50 μg ml−1, compound 3o showed prominent antifungal effects on Alternaria solani and Rhioctornia solani, with inhibition rates of 91.8% and 97.4%, and a 50% effective concentration (EC50) of 6.2255 and 0.6969 μg ml−1 respectively. The EC50 of compound 3o against Alternaria solani was significantly lower than that of boscalid (13.0380 μg ml−1) and flutriafol (11.9057 μg ml−1). In addition, compound 3o had good antifungal activity against Sclerotinia sclerotiorum, cucumber powdery mildew, cucumber Botrytis cinerea and Phytophthora capsici in vivo; the antifungal activity of compound 3o against cucumber Botrytis cinerea is 91.7%. At the same time, docking results for highly active compound 3o with the presumed target succinate dehydrogenase and the molecular docking prediction scores of all compounds further indicate its possible antifungal activity mechanism.CONCLUSIONThe designed and optimized derivative 3o of ring‐opening pimprinine has good antifungal activity and can be used as a new antifungal drug for further research. © 2023 Society of Chemical Industry.
Narirutin exerts anti‐inflammatory activity by inhibiting NLRP3 inflammasome activation in macrophages
Authors: Ri Myong Hak , Li Ming Yue , Xing Yue , Zuo Hong Xiang , Li Guangyi , Li Chengcheng , Ma Juan , Jin Xuejun 
Published: February 2023

AbstractCitrus peel has long been used in traditional medicine in Asia to treat common cold, dyspepsia, cough, and phlegm. Narirutin–a flavanone‐7‐O‐glycoside–is the major flavonoid in citrus peel, and has anti‐oxidative, anti‐allergic, and anti‐inflammatory activities. However, the anti‐inflammatory mechanism of narirutin has not been fully elucidated. This study is aimed to investigate the effects of narirutin on the Nod‐like receptor protein 3 (NLRP3)‐mediated inflammatory response in vitro and in vivo, and determine the underlying mechanism. THP‐1 differentiated macrophages and bone marrow‐derived macrophages (BMDMs) were used for in vitro experiments, while dextran sulfate sodium (DSS)‐induced colitis and alum‐induced peritonitis mouse models were constructed to test inflammation in vivo. Narirutin suppressed secretion of interleukin (IL)‐1β and pyroptosis in lipopolysaccharide (LPS)/ATP‐stimulated macrophages. Narirutin decreased the expression of NLRP3 and IL‐1β in the LPS‐priming step through inhibition of NF‐κB, MAPK and PI3K /AKT signaling pathways. Narirutin inhibited NLRP3–ASC interaction to suppress NLRP3 inflammasome assembly. Furthermore, oral administration of narirutin (300 mg/kg) alleviated inflammation symptoms in mice with peritonitis and colitis. These results suggest that narirutin exerts its anti‐inflammatory activity by suppressing NLRP3 inflammasome activation via inhibition of the NLRP3 inflammasome priming processes and NLRP3–ASC interaction in macrophages.
Assessment of the accuracy of the 17O correction algorithm used in δ13C determinations by CO2 mass spectrometry
Authors: Assonov Sergey 
Published: February 2023

RationaleHigh‐accuracy δ13C values are required for observations of greenhouse gases CO2 and methane, and, consequently, for international reference materials (RMs). Recently, another application, clumped isotope geothermometry of natural carbonates, has demonstrated the requirement for high‐accuracy δ13C values. δ13C determinations by mass spectrometry use an 17O isobaric correction on m/z 45, where 17O abundance is calculated from the measured 18O with the 17O–18O relationship assumed with λ = 0.528. This relationship is the key assumption of the algorithm proposed in 2003 and accepted by IUPAC in 2010. However, to date, this relationship and potential δ13C biases have not been verified using 17O measurements.MethodsTo verify the 17O correction and to estimate potential δ13C biases, we compile measured 17O data for carbonate RMs, for a range of natural carbonates that are typically analyzed in clumped isotope geothermometry and for CO2 in isotope equilibrium with natural waters including plants and biota. δ13C biases are calculated based on 17O deviation from the 17O–18O relationship assumed in the 17O correction.ResultsTo estimate δ13C biases accurately, the VPDB‐CO2 framework for expressing 17O excess is defined and linked to the δ13C scale definition. δ13C biases estimated for carbonate RMs are found within ±0.004‰; the biases estimated for natural carbonates and CO2 in equilibrium with natural waters are mostly within ±0.010‰ (bidirectional distribution around zero). In all cases, the estimated biases are found within the best instrumental uncertainty of modern isotope ratio mass spectrometry (IRMS) (around ±0.014‰, k = 2).ConclusionsFor the first time, high accuracy of δ13C data obtained by CO2 mass spectrometry using the 17O correction with fixed λ = 0.528 has been demonstrated using measured 17O data. δ13C biases estimated are within the best IRMS precision (±0.014‰, k = 2) and can be neglected in most practical applications. To obtain high‐quality δ13C data, it is strictly necessary that all data are treated on the VPDB‐CO2 scale.
Voltammetric Sensors: A Versatile Tool in COVID‐19 Diagnosis and Prognosis
Authors: Nambiar Souparnika , Mohan Malavika , Rosin Jose Ammu 
Published: February 2023

AbstractThe recent events of outbreaks of corona virus caused by the Severe Acute Respiratory Syndrome Coronavirus −2(SARS‐CoV‐2) raised a concern and increased urge for quick and rapid detection techniques of disease causing pathogens. The detection of the virus with high sensitivity and accuracy holds great importance. Nowadays, the most commonly employed technique is the Quantitative Reverse Transcription Polymerase Chain Reaction test (qRT‐PCR) and antigen test. While RT‐PCR technique is time consuming, expensive and labour intensive, antigen tests though simple, can often give false positive and false negatives. In this context, electrochemical biosensors developed in recent times have been identified as a potential strategy to overcome the limitations of these common techniques. This review article summarizes the current advancements in the field of voltammetric sensors for the detection of COVID‐19 virus and various biomarkers associated with it.
Data interoperability assessment, case of messaging‐based data exchanges
Authors: Laval Jannik , Amokrane Nawel , Thiam Niang Boubou , Derras Mustapha , Moalla Néjib 
Published: February 2023

AbstractData interoperability implies data exchanges among intra and inter enterprises collaborating with information systems (IS). The multiplicity of these exchanges and the increasing number of data exchanged generates complexity and brings out the needs for control to avoid dysfunctions with a negative impact on the overall performance of the systems. Indeed, actually, interoperability has become a necessary performance lever that thus requires particular attention. Being at a low level in the enterprise interoperability concerns, data interoperability is mainly automated, which leads us to question: Is it possible to evaluate data interoperability performance and security based on inspection and analysis of ongoing data exchanges? We therefore endeavored to answer this question by establishing monitoring and analysis systems. In this paper, we present a research work which addresses services provided by a messaging‐based communication system. In order to collect information on Information System interactions allowing one to assess their level of data interoperability, we propose a messaging metamodel that aggregates the collected information. It provides a single point of control and enables one to determine indicators of potential interoperability problems. The approach is validated on two case studies. An industrial case study of interactions among existing systems is presented to showcase the feasibility and interest of the approach. It is proposed on top of RabbitMQ and allows our partner to identify some issues in the studied information system. The second case study shows that the approach can integrate other protocols, by reading MQTT messages. The approach is implemented using Moose, a software analysis platform.
A Coordinated Frequency Control in Microgrid Based on Asymmetric Synthetic Inertia Considering Rotational Speed of Wind Turbine
Authors: Qi Jingting , Tsuji Takao 
Published: February 2023

AbstractFrequency regulation is an important issue in isolated microgrids with inertia‐less variable renewable energy sources such as wind turbines (WTs) or photovoltaics (PVs) due to the small inertia of the overall system. Synthetic inertia control (SI) using the kinetic energy of WT can provide the microgrid with virtual inertia to mitigate frequency fluctuations. In order to improve the performance of SI, the authors have proposed an asymmetric synthetic inertia control (ASI) in which the virtual moment of inertia is alternating depending on the system frequency and the rate of change of frequency. By increasing the control gain only when the system frequency is moving away from the nominal value, it is expected that ASI contributes to the faster convergence of frequency control. However, another issue is interference between ASI and the rotational speed control for maximum power point tracking of WT. Hence, in this study, a coordinated frequency and rotational speed control strategy was proposed. The rotational speed control can be activated based on a mode‐switching logic when the interference does not occur. The effectiveness of the proposed control strategy was verified by numerical simulations using a microgrid model consisting of diesel engine generators, WTs, a photovoltaic, and a load. © 2023 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.
Evaporation processes in the Silala River basin
Authors: Suárez Francisco , Oportus Tomás , Mendoza Magdalena , Aguirre Ignacio , Godoy Víctor , Muñoz José F. 
Published: February 2023

AbstractEvapotranspiration has been poorly characterized in the Altiplano, and the legal dispute over the status and use of the waters of the Silala River provided an opportunity for improving knowledge of this hydrological process, in a remote area with a lack of hydrometeorological data. Actual evapotranspiration (ETa) measurements using eddy covariance (EC) were performed in the riparian wetland (EC1) and over the alluvial deposits (EC2) of the Silala River basin, and in the Putana River wetland (EC3), with similar characteristics to the Silala River headwaters. The portable chamber method was used to characterize soil and plant evaporation near EC2. Satellite‐derived ETa estimates were evaluated with the in‐situ data, and used to investigate spatiotemporal dynamics of the wetland vegetation cover. At EC1 and EC3, annual ETa values were 703 and 841 mm, respectively; and satellite‐derived ETa showed differences of 5% and −35% from these values. ETa exhibited strong seasonal variations at EC1 and EC3, and was sensitive to precipitation at EC2. ETa did not follow the temporal evolution of the reference evapotranspiration at EC2, suggesting that lateral subsurface flow supports ETa in dry periods. Portable chamber measurements revealed that bare soil evaporation is the main component of ETa in the alluvial deposits. ETa data collected within the basin, as described in other papers of this special issue, allowed validation of a hydrological model used to estimate the basin's groundwater recharge, and estimation of the surface flow increase due to river channelization, which were important scientific evidence provided in the legal dispute.This article is categorized under:
Science of Water > Hydrological Processes
Science of Water > Methods
Heat transfer aspects in Carreau nanofluid having hybrid nanoparticles through a porous medium
Authors: Waqas Hassan , Farooq Umar , Yang Song , Muhammad Taseer , Imran Muhammad 
Published: February 2023

AbstractThe effects of nanofluid radiation and magnetic fields are important in biotechnology and medical treatment. The efficiency of hybrid nanomaterials flow (Carreau fluid) over a porous medium was investigated, and the findings were presented. The partial slip impact was used to thoroughly scrutinize the properties of the nanofluid flow. Using suitable variables, the PDEs in the Carreau model were reduced to ODEs, and the governing PDEs were transformed to ODEs using similarity transformations. The consequent ODEs are numerically investigated using the RKF‐45 Method. Furthermore, the results of the parameters involved in thermal and velocity were discussed. To the finest of the journalists' knowledge, no one has endeavored to depict medical occurrences and medical approaches by watching the flow through a malleable porous medium including blood as a base fluid and hybrid nanostructure materials. Indeed, the endeavors of this study are exceptional, and the obtained simulations have never been published by anyone academic.
Gravity coupled to a scalar field from a Chern-Simons action: describing rotating hairy black holes and solitons with gauge fields
Authors: Cárdenas Marcela , Fuentealba Oscar , Martínez Cristián , Troncoso Ricardo 
Published: February 2023

Abstract
Einstein gravity minimally coupled to a scalar field with a two-parameter Higgs-like self-interaction in three spacetime dimensions is recast in terms of a Chern-Simons form for the algebra g+ ⊕ g− where, depending on the sign of the self-interaction couplings, g± can be so(2, 2), so(3, 1) or iso(2, 1). The field equations can then be expressed through the field strength of non-flat composite gauge fields, and conserved charges are readily obtained from boundary terms in the action that agree with those of standard Chern-Simons theory for pure gravity, but with non-flat connections. Regularity of the fields then amounts to requiring the holonomy of the connections along contractible cycles to be trivial. These conditions are automatically fulfilled for the scalar soliton and allow to recover the Hawking temperature and chemical potential in the case of the rotating hairy black holes presented here, whose entropy can also be obtained by the same formula that holds in the case of a pure Chern-Simons theory. In the conformal (Jordan) frame the theory is described by General Relativity with cosmological constant conformally coupled to a self-interacting scalar field, and its formulation in terms of a Chern-Simons form for suitably composite gauge fields is also briefly addressed.
Renormalization of the Standard Model Effective Field Theory from geometry
Authors: Helset Andreas , Jenkins Elizabeth E. , Manohar Aneesh V. 
Published: February 2023

Abstract
S-matrix elements are invariant under field redefinitions of the Lagrangian. They are determined by geometric quantities such as the curvature of the field-space manifold of scalar and gauge fields. We present a formalism where scalar and gauge fields are treated together, with a metric on the combined space of both types of fields. Scalar and gauge scattering amplitudes are given by the Riemann curvature Rijkl of this combined space, with indices i, j, k, l chosen to be scalar or gauge indices depending on the type of external particle. One-loop divergences can also be computed in terms of geometric invariants of the combined space, which greatly simplifies the computation of renormalization group equations. We apply our formalism to the Standard Model Effective Field Theory (SMEFT), and compute the renormalization group equations for even-parity bosonic operators to mass dimension eight.
On classification of fermionic rational conformal field theories
Authors: Duan Zhihao , Lee Kimyeong , Lee Sungjay , Li Linfeng 
Published: February 2023

Abstract
We systematically study how the integrality of the conformal characters shapes the space of fermionic rational conformal field theories in two dimensions. The integrality suggests that conformal characters on torus with a given choice of spin structures should be invariant under a principal congruence subgroup of PSL(2, ℤ). The invariance strongly constrains the possible values of the central charge as well as the conformal weights in both Neveu-Schwarz and Ramond sectors, which improves the conventional holomorphic modular bootstrap method in a significant manner. This allows us to make much progress on the classification of fermionic rational conformal field theories with the number of independent characters less than five.
Sharp Decay for Teukolsky Equation in Kerr Spacetimes
Authors: Ma Siyuan , Zhang Lin 
Published: February 2023

AbstractIn this work, we derive the global sharp decay, as both a lower and an upper bounds, for the spin $$\pm {\mathfrak {s}}$$

±
s

components, which are solutions to the Teukolsky equation, in the black hole exterior and on the event horizon of a slowly rotating Kerr spacetime. These estimates are generalized to any subextreme Kerr background under an integrated local energy decay estimate. Our results apply to the scalar field $$({\mathfrak {s}}=0)$$

(
s
=
0
)

, the Maxwell field $$({\mathfrak {s}}=1)$$

(
s
=
1
)

and the linearized gravity $$({\mathfrak {s}}=2)$$

(
s
=
2
)

and confirm the Price’s law decay that is conjectured to be sharp. Our analyses rely on a novel global conservation law for the Teukolsky equation, and this new approach can be applied to derive the precise asymptotics for solutions to semilinear wave equations.
Effects of perinatal exposure to bisphenol A or S in EAE model of multiple sclerosis
Authors: Bonaldo Brigitta , Casile Antonino , Montarolo Francesca , Bettarelli Martina , Napoli Francesca , Gotti Stefano , Panzica GianCarlo , Marraudino Marilena 
Published: February 2023

AbstractEpidemiological studies support the idea that multiple sclerosis (MS) is a multifactorial disease, overlapping genetic, epigenetic, and environmental factors. A better definition of environmental risks is critical to understand both etiology and the sex-related differences of MS. Exposure to endocrine-disrupting compounds (EDCs) fully represents one of these risks. EDCs are natural or synthetic exogenous substances (or mixtures) that alter the functions of the endocrine system. Among synthetic EDCs, exposure to bisphenol A (BPA) has been implicated in the etiology of MS, but to date, controversial data has emerged. Furthermore, nothing is known about bisphenol S (BPS), one of the most widely used substitutes for BPA. As exposure to bisphenols will not disappear soon, it is necessary to clarify their role also in this pathological condition defining their role in disease onset and course in both sexes. In this study, we examined, in both sexes, the effects of perinatal exposure to BPA and BPS in one of the most widely used mouse models of MS, experimental autoimmune encephalomyelitis (EAE). Exposure to bisphenols seemed to be particularly deleterious in males. In fact, both BPA- and BPS-treated males showed anticipation of the disease onset and an increased motoneuron loss in the spinal cord. Overall, BPA-treated males also displayed an exacerbation of EAE course and an increase in inflammation markers in the spinal cord. Analyzing the consequences of bisphenol exposure on EAE will help to better understand the role of both xenoestrogens and endogenous estrogens on the sexually dimorphic characteristics of MS.
The Duality of the Volumes and the Numbers of Vertices of Random Polytopes
Authors: Buchta Christian 
Published: February 2023

AbstractAn identity due to Efron dating from 1965 relates the expected volume of the convex hull of n random points to the expected number of vertices of the convex hull of $$n+1$$

n
+
1

random points. Forty years later this identity was extended from expected values to higher moments. The generalized identity has attracted considerable interest. Whereas the left-hand side of the generalized identity—concerning the volume—has an immediate geometric interpretation, this is not the case for the right-hand side—concerning the number of vertices. A transformation of the right-hand side applying an identity for elementary symmetric polynomials overcomes the blemish. The arising formula reveals a duality between the volumes and the numbers of vertices of random polytopes.
Removal of Sulfate and Metals from Wastewater of a Mining Enterprise by a Dual Sorbent System: A Case Study
Authors: Krasavtseva Eugenia , Gogoi Harshita , Svetlov Anton , Leiviskä Tiina , Makarov Dmitriy 
Published: February 2023

AbstractThis paper presents the results of wastewater treatment at a mining enterprise developing a complex ore deposit in the Murmansk region, Russia. The main pollutants are sulfate, manganese, and strontium. For this complex wastewater treatment, a two-stage scheme was proposed and tested using two sorbents (at a pH of 6): an aminated peat biosorbent to remove sulfate and a commercial sorbent based on the mineral brucite to remove metals. Optimal conditions were established for purifying the wastewater of sulfate and manganese and strontium ions to the level of maximum available concentrations in water bodies for fishery purposes.