bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimates for the nonlinear viscoelastic damped wave equation on compact Lie groups
Authors: Bhardwaj Arun Kumar , Kumar Vishvesh , Mondal Shyam Swarup 
Published: February 2023

Abstract

Note: Please see pdf for full abstract with equations.
Let G be a compact Lie group. In this article, we investigate the Cauchy problem for a nonlinear wave equation with the viscoelastic damping on G. More preciously, we investigate some L2-estimates for the solution to the homogeneous nonlinear viscoelastic damped wave equation on G utilizing the group Fourier transform on G. We also prove that there is no improvement of any decay rate for the norm ∥u(t, ·)∥L2(G) by further assuming the L1(G)-regularity of initial data. Finally, using the noncommutative Fourier analysis on compact Lie groups, we prove a local in time existence result in the energy space C1([0, T],H1L(G)).
Remote sensing environmental indicators for monitoring spatial and temporal dynamics of water and vegetation conditions: applications to the Brazilian biomes
Authors: Teixeira Antonio , Leivas Janice , Takemura Celina , Bayma Gustavo , Garçon Edlene , Sousa Inajá , Farias Franzone , Silva Cesar 
Published: February 2023

Abstract
The SAFER (Simple Algorithm for Evapotranspiration Retrieving) algorithm and the radiation use efficiency (RUE) model were coupled to test large-scale remote sensing environmental indicators in the Brazilian biomes. The MODIS MOD13Q1 reflectance product and gridded weather data were used for the year 2016. The analyzed biomes were Amazon, Caatinga, Cerrado, Pantanal, Atlantic Forest, and Pampa. Significant differences on precipitation (P), actual evapotranspiration (ET), and biomass production (BIO) yielded differences on water balance (WB = P - ET) and water productivity (WP = ET/BIO). The highest WB and WP differences along the year were for the wettest Amazon, Atlantic Forest, and Pampa biomes, when compared with the driest Caatinga biome. Rainfall distribution along the year affected the magnitude of the evaporative fraction (ETf), i.e, the ratio of ET to reference evapotranspiration (ET0), however there was a gap between ETf and WB, what can be related to the time needed for recovering the good soil moisture conditions after the rainy seasons. For some biomes, BIO was more related to the levels of absorbed photosynthetically active radiation (Amazon, Atlantic Forest, and Pampa), while for others BIO followed more the soil moisture levels, represented by ETf (Caatinga, Cerrado, and Pantanal). The large-scale modelling presented suitability for monitoring environmental indicators, opening the room to detect anomalies for specific periods along the year by using historical images and weather data, with great potential to subsidize public policies regarding the management and conservation of the natural resources and possibility for replication of the methods in other countries.
Why the Use of Domain-specific Modeling in Airworthy Software Requires New Methods and How these Might Look Like? (extended version)
Authors: Tietz Vanessa , Frey Constantin , Waldvogel Andreas , Schoepf Julian , Annighoefer Bjoern 
Published: February 2023

Abstract
The use of domain-specific modeling (DSM) in safety-critical avionics is rare, even though the ever-increasing complexity of avionics systems makes the use of DSM reasonable. DSM shows its advantage especially in capturing complex systems, data and relationships. The reason for the limited use in the (safety-critical) avionics area is mainly due to the high demands on the safety of software and systems. Everything that is to be used in flight operations and development must undergo a rigorous and complex certification process. Any data used in operations must be verified. A reduction of this effort can be achieved using qualified tools. A qualified tool can either replace or support certification activities.
This article elaborates different use cases of how DSM could be used in relation to airworthy software. For those use cases, we review the effort of a certification and retrieve the major shortcomings and showstoppers of available frameworks, e.g. infeasible qualification of DSM runtimes and the unavailability of qualification artifacts. Finally, we elaborate possible ways of mitigation and show the concept and first results of a new DSM framework for airworthy applications, called DOMAINES. DOMAINES covers deterministic meta-modeling up to graph-based model transformations and verified visual editing. The concept of DOMAINES and a first functional prototype are presented that indicate that the shortcomings can be mitigated.
Cancer of unknown primary (CUP) through the lens of precision oncology – a single institution perspective
Authors: Weiss L. , Heinrich K. , Zhang D. , Dorman K. , Rühlmann K. , Hasselmann K. , Klauschen F. , Kumbrink J. , Jung A. , Rudelius M. , Mock A. , Kunz W. G. , Roessler D. , Beyer G. , Corradini S. , Heinzerling L. , Haas M. , von Bergwelt-Baildon M. , Boeck S. , Heinemann V. , Westphalen C. B. 
Published: February 2023

Abstract
Purpose
For patients with cancer of unknown primary (CUP), treatment options are limited. Precision oncology, the interplay of comprehensive genomic profiling (CGP) and targeted therapies aims to offer additional treatment options to patients with advanced and hard-to-treat cancers.
Methods
In this single center observational study, CUP patients, presented to the molecular tumor board (MTB) of the Comprehensive Cancer Center Munich LMU, a tertiary care center, were analyzed retrospectively. Descriptive statistics were applied to describe relevant findings.
Results
Between June 2016 and February 2022, 61 CUP patients were presented to the MTB. On average, patients had received one line of therapy before presentation to the MTB. CGP detected clinically relevant variants in 74% (45/61) of patients, of which 64% (29/45) led to therapeutic recommendation. Most recommendations were based on high tumor mutational burden (TMBhigh) or alterations in PIK3CA and ERBB2. In four out of 29 patients (14%) the treatment recommendations were implemented, unfortunately without resulting in clinical benefit. Reasons for not following the therapeutic recommendation were mainly caused by the physicians’ choice of another therapy (9/25, 36%), especially in the context of worsening of general condition, lost to follow-up (7/25, 28%) and death (6/25, 24%).
Conclusion
CGP and subsequent presentation to a molecular tumor board led to a high rate of therapeutic recommendations in patients with CUP. However, implementation of recommendations did not benefit the patients and recommendations were only implemented at a low rate. This contrast underscores the need for early implementation of CGP into the management of CUP patients.
Two-sample Mendelian Randomization Study Dose Not Reveal Significant Relationship Between Cytomegalovirus (CMV) Infection and Autism Spectrum Disorders
Authors: Zhang Mengna , Ming Ying , Du Yunling , Xin Ziyuan 
Published: February 2023

Abstract
Autism spectrum disorders (ASD) is a neurodevelopmental disorder affecting ~2% children worldwide and characterized by repetitive, stereotypical behaviors and impaired expressive communication. Cytomegalovirus (CMV) is considered a risk factor for ASD, however, published studies are usually limited by too few events and have different conclusions, indicating the relationship between CMV infection and ASD remains elusive. To investigate the association between CMV infection and ASD, we conducted this 2-sample mendelian randomization study using GWAS summary data from FinnGen and IEU Open GWAS project. Our results showed no significant relationship between all 3 CMV infections (unspecified cytomegaloviral diseases, anti-CMV IgG levels, and maternal CMV) and ASD.
Projections of Winter Polynyas and Their Biophysical Impacts in the Ross Sea Antarctica
Authors: DuVivier Alice K. , Molina Maria J. , Holland Marika M. , Landrum Laura , Krumhardt Kristen , Jenouvrier Stephanie 
Published: February 2023

Abstract
This study investigates winter polynyas in the southern Ross Sea, Antarctica where several polynyas are known to form. Coastal polynyas are areas of lower sea ice concentration and/or thickness along the coast that are otherwise surrounded by the thicker ice pack, and polynyas are locations where organisms can exploit both the ice substrate and pelagic resources. Using a self organizing map algorithm, we identify polynya events in the Community Earth System Model Version 2 Large Ensemble (CESM2-LE). The neural network algorithm is able to identify polynya events without imposing an ice concentration or thickness threshold, as is often done when identifying polynyas. The CESM2-LE produces a wintertime polynya feature comparable in size and location to the Ross Sea polynya, and during polynya events there are large turbulent heat fluxes and export of sea ice from the Ross Sea. In the CESM2-LE polynya event frequency is projected to decrease sharply in the later 21st century, leading to increasing sea ice concentrations and thicknesses in the region. The drivers of the polynya frequency decline are likely both large scale circulation changes and local atmosphere and ocean feedbacks. Changes in wintertime polynya frequency over the 21st century may impact local net primary productivity, which has the potential for cascading effects up the food chain. Improving understanding of the biogeophysical relationships will be important for assessing how the Ross Sea ecosystem, which is currently protected by an internationally recognized marine protected area, may be vulnerable in the future in unexpected ways.
CETP Taq1B polymorphism and its association with cardiovascular risk factors in an Iranian population under angiography, A Cross-Sectional Study
Authors: Vasmehjani Azam Ahmadi , SeyedHosseini SeyedMostafa , Khayyatzadeh SayyedSaeid , Madadizadeh Farzan , Mazaheri-Naeini Mahta , Yavari Mahdie , Darabi Zahra , Beigrezaei Sara , Taftian Marzieh , Arabi Vahid , Motallaei Maryam , Salehi-Abargouei Amin , Najarzadeh Azadeh 
Published: February 2023

AbstractBackground:Several studies have assessed the association of the cholesterol ester transfer protein (CETP) (rs708272) TaqIB gene polymorphism with risk factors of CVDs; however, their results are inconsistent. The current study investigated the relationship between CVD risk factors and the Taq1B variant in a population from Iran that was undergoing coronary angiography.Methods:This cross-sectional study was conducted on 476 subjects aged (30-76) years of both sexes. Genotypes for Taq1B polymorphism were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) using extracted DNA from whole blood. Cardio-metabolic markers were measured by standard protocols. To determine the association between CVDs risk factors and the rs708272 variant, binary logistic regression was used in crude and adjusted models.Results:Genotype frequencies of the Taq1B polymorphism were 10.7% for B1B1, 72.3% for B1B2, and 17% for B2B2. No significant association was observed between abnormal levels of CVDs risk factors and different genotypes of the Taq1B variant, Gensini score (p= 0.64), Syntax score (p= 0.79), systolic blood pressure (p= 0.55), diastolic blood pressure (p= 0.58), waist circumference (p= 0.79). None of the abnormal serum levels were related to genotypes of the rs708272 variant. Results remained not significant after adjusting for confounders.Conclusion:Risk factors for CVDs were not associated with CETP rs708272 polymorphism in our population. Various findings reported in different populations that it suggested more studies in various regions in connection with CETP gene variants which are linked to CVD events.
Income disparity and healthcare utilization: lessons from Indonesia’s National Health Insurance claim data
Authors: Nugroho Sony Tito , Ahsan Abdillah , Kusuma Dian , Adhani Nadhila , Irawaty Dian Kristiani , amalia nadira , Hati Sri Rahayu Hijrah 
Published: February 2023

Abstract
Background
Indonesia's National Health Insurance Program, known as Jaminan Kesehatan Nasional (JKN), has a variety of membership pathways for those wishing to gain access. Claim data from JKN offers a cost-effective way of observing who is accessing healthcare services and what types of services are being used. This study is a novel attempt to measure disparities amongst JKN users in their engagement with services, providing an opportunity to reflect on patterns of use.
Methods
Using claims data collected from JKN users between 2015–2016, we used the Ordinary Least Square (OLS) estimation model to compare health services utilization among subsidized and non-subsidized users. We focused primarily on the individual use of the hospital for outpatient and inpatient treatment.
Results
Analysis reveals that subsidized users access primary healthcare services more frequently than non-subsidized users. Conversely, non-subsidized users access secondary and tertiary health care services more frequently than other users. Subsidized users who utilize secondary and tertiary health care tend to suffer more severe health illnesses than non-subsidized members.
Conclusions
This study concludes that income disparity affects healthcare utilization. Non-subsidized (PBPBU) members are more likely than subsidized (PBI) members to access secondary and tertiary health care services. Our study offers evidence of the potential underutilization of STHC by PBI members, which could lead to inefficiency since PBI participants seeking STHC treatment had severe health conditions, thus needing to be treated longer and requiring higher healthcare expenditures.
Does social motivation overshadow fear caused by a sudden sound in horses?
Authors: Janicka Wiktoria , Wilk Izabela , Próchniak Tomasz 
Published: February 2023

Abstract
Living in a herd has multiple advantages for social species and is a primary survival strategy for prey. The presence of conspecifics, identified as a social buffer, may mitigate the individual stress response. Social isolation is, therefore, particularly stressful for horses, which are gregarious animals. However, they are not equally vulnerable to separation from the group. We tested whether more and less socially dependent horses and independent individuals would differ in their responses to novel and sudden sounds occurring in two contexts: non-social and social motivation. Twenty warmblood horses were first exposed to two social tests: to evaluate the level of social dependence (rate of restless behaviour; social isolation) and the quantity and the quality of interactions in which they were involved (stay on a paddock). Two fear audio tests were then performed to compare the responses to sudden sounds while feeding (non-social motivation; control trial) and while moving towards the herd (social motivation; experimental trial). Socially dependent horses showed more pronounced avoidance behaviour and needed much more time to resume feeding during the control trial. Hence, dependent individuals appeared to be more fearful. However, during an experimental trial, horses of both groups tended to ignore the sound or paid only limited attention to the stimulus, continuing to move forward towards their conspecifics. Thus, social motivation may overshadow fear caused by a frightening stimulus and make fearful and dependent horses more prone to face a potentially stressful event. This finding should be taken into account in horse training and management.
Disordered eating behaviour is not associated with sexual risk taking behaviour amongst emerging adults attending a tertiary education institution in Coastal Kenya: a latent class analysis approach
Authors: Chea Stevenson K. , Kazienga Adama , Oyugi Eunice A. , Menza Isaac , Nasambu Carophine , Ibrahim Fauz , Abdullahi Osman A. , Hassan Amin S. , Abubakar Amina , Michielsen Kristien , Abbeddou Souheila 
Published: February 2023

Abstract
Background
Sexual risk-taking behavior (SRTB) is a well-documented pathway to HIV acquisition in emerging adults (EmA) and remains common amongst African EmA. We aimed to describe the relationship between disordered eating behavior (DEB) and SRTB amongst EmA attending a tertiary educational institution at the Kenyan Coast.
Methods
We applied a cross-sectional design nested in a young adults’ cohort study. Eligibility included sexually active EmA aged 18-24 years. Three DEBs (emotional, restrained and external eating) were assessed using the Dutch Eating Behavior Questionnaire and analyzed using exploratory factor analysis. Seven SRTB indicators were assessed: i) non-condom use ii) casual sex iii) multiple sex partners iv) transactional sex v) group sex vi) age-disparate relationship and vii) anal sex, and grouped into low vs. high SRTB using latent class analysis. Logistic regression was used to assess the association between DEB and SRTB.
Results
Of 273 eligible participants (female, n =110 [40.3%]), the mean [SD] of emotional, restrained and external eating was 1.9 [0.6], 2.0 [0.6] and 3.0 [0.5] respectively. Overall, 57 (20.9%) were grouped into the latent high SRTB class. Emotional (Adjusted odds ratio {AOR [95% confidence interval, CI]: 1.0 [0.9 – 1.0], p = 0.398), restrained (AOR, 1.0 [CI: 0.9 – 1.1], p = 0.301) and External (AOR, 1.0 [CI: 0.8 – 1.2], p = 0.523) eating were not independently associated with latent high SRTB.
Conclusion
There was no significant association between DEB and SRTB. More studies in different African settings are needed to validate our findings in order to lay a strong evidence base for public health interventions on SRTB in this and similar settings.
Influence of droplet size on the antibacterial efficacy of citral and citronella oil nanoemulsions in polysaccharide coated fresh-cut apples
Authors: Touayar Mounir , Zayani Rania , Messaoud Chokri , Salman Hesham 
Published: February 2023

Abstract
Fresh-cut fruits are highly perishable and susceptible to bacterial contamination; thus, effective preservation methods are necessary to extend their shelf-life and improve quality.
Polysaccharides edible coating loaded with essential oil nanoemulsions have the potential to extend shelf life and improve quality. The effectiveness of this approach is dependent on the properties of the nanoemulsions, such as droplet size (DS) and stability. This study optimized the production of citral (CT) and citronella oil (CTO) nanoemulsions (CT-CTO-NEs) for use in fresh-cut apples, with a focus on the effect of DS on antibacterial efficacy.
After testing different combinations of surfactants tween 80 (TW 80) and co-surfactants Propylene Glycol (PG), the results showed that the optimal CT-CTO-NEs had droplets size of less than 500 nm and were stable for 3 weeks at 4ºC. The highest antibacterial activity against Listeria monocytogenes and Escherichia coli was observed with the smallest DS (< 100 nm). This study highlights the importance of DS in the efficacy of essential oil nanoemulsions as an antibacterial coating for fresh-cut fruits. The smaller the droplet size, the better the antibacterial activity.
Types of Annihilator in LPW-Algebras
Authors: Indhumathi M. 
Published: February 2023

Abstract
The aim of this paper is to expand the idea of annihilators in ℒ𝒫𝒲-Algebras. We introduce the definition of annihilators. And also, we introduce the definitions of Normal, (⇁,↬)− Normal and (↬,⇁)−Normal 𝒫𝒲𝐼-ideals. We obtain some characterizations and several basic properties of annihilators. Moreover we investigate the relationship between 𝑓̈(𝑆́(⇁,↬)) and (𝑓̈ (𝑆́))(⇁,↬) for a homomorphism of ℒ𝒫𝒲-Algebras.
Mathematical Subject classification: 03B05, 03G10, 06B10, 06B75
The impacts of the wetness–dryness encountering of the upstream inflow and downstream salt intrusion on water supply in coastal urban agglomeration
Authors: He Yanhu , Zhang Zhaoyi , Lin Zhuliang , Cai Yanpeng , Chen Xiaohong 
Published: February 2023

Abstract
In the current study, to investigate the impacts of the wetness–dryness encountering of the upstream inflow and downstream salt intrusion on the water supply of the Pearl River Delta, we developed a water evaluation and planning (WEAP)-based water resources allocation model to calculate water supply schemes for the Pearl River Delta under 10 different scenarios. The impact of the scenarios on the water supply scheme of the Pearl River Delta was investigated. The results showed that (1) the water shortage of the Pearl River Delta is highly dependent upon the dryness combination of the upstream runoff during the dry period, in particular to the cities at the Pearl River Delta estuary, the water shortages are seriously influenced by saltwater intrusion; and (2) the water transfer projects could alleviate the water supply pressure of the Pearl River Delta when there is an extreme or more dryness encounter of upstream runoff. However, when extreme dryness events are impacting the upstream runoff of the West River, the impact of the water transfer projects is weakened and much of the critical upstream runoff for saltwater suppression cannot be satisfied, which largely impacts water withdrawals at the downstream cities in the Pearl River Delta estuary.
Capacity characteristics of the underground water reservoir of an open-pit coalmine: a case study in Baorixile
Authors: Wang Yukai , Liu Xiaoli , Pang Bo , Li Yanfei , Cao Zhiguo 
Published: February 2023

Abstract
Water storage capacity has always been the core component of the underground water reservoir in open-pit coalmines. Taking the western underground water reservoir of Baorixile open-pit coalmine as the research background, boreholes in the waste dump overlying the underground water reservoir were designed and drilled, and the capacity characteristics of the underground water reservoir were studied by a layered summation method. These test results revealed that: (1) the regional strata from shallow to deep are the near-surface loose layer, upper bench loess, mixed stripping material, glutenite water reservoir layer and rubble collecting ditch; and the glutenite water reservoir layer is the main water storage body of the underground water reservoir. (2) Permeability coefficient, porosity, layered and cumulative water storage of the western underground water reservoir in Baorixile open-pit coalmine increase with the elevation increase, and show a quadratic function relationship. (3) The total storage capacity of the underground water reservoir is 1.2234 Mm3, and the average porosity is 0.1003, that is, each volume of the water storage medium can store 0.1003 volume of water. These results provide a scientific basis for the evaluation and determination of the water storage capacity of the underground water reservoir in open-pit coalmines.
Application of wavelet theory to enhance the performance of machine learning techniques in estimating water quality parameters (case study: Gao-Ping River)
Authors: Chen Tzu-Chia 
Published: February 2023

ABSTRACT

There are several methods for modeling water quality parameters, with data-based methods being the focus of research in recent decades. The current study aims to simulate water quality parameters using modern artificial intelligence techniques, to enhance the performance of machine learning techniques using wavelet theory, and to compare these techniques to other widely used machine learning techniques. EC, Cl, Mg, and TDS water quality parameters were modeled using artificial neural network (ANN) and adaptive neuro-fuzzy inference system (ANFIS). The study area in the present research is Gao-ping River in Taiwan. In the training state, using hybrid models with wavelet transform improved the accuracy of ANN models from 8.1 to 22.5% and from 25.7 to 55.3% in the testing state. In addition, wavelet transforms increased the ANFIS model's accuracy in the training state from 6.7 to 18.4% and in the testing state from 9.9 to 50%. Using wavelet transform improves the accuracy of machine learning model results. Also, the WANFIS (Wavelet-ANFIS) model was superior to the WANN (Wavelet-ANN) model, resulting in more precise modeling for all four water quality parameters.