bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hybrid Machine Learning Approach to Zero-Inflated Data Improves Accuracy of Dengue Prediction
Authors: Francisco Micanaldo Ernesto , Carvajal Thaddeus M. , Watanabe Kozo 
Published: October 2024

Background
Spatiotemporal dengue forecasting using machine learning (ML) can contribute to the development of prevention and control strategies for impending dengue outbreaks. However, training data for dengue incidence may be inflated with frequent zero values because of the rarity of cases, which lowers the prediction accuracy. This study aimed to understand the influence of spatiotemporal resolutions of data on the accuracy of dengue incidence prediction using ML models, to understand how the influence of spatiotemporal resolution differs between quantitative and qualitative predictions of dengue incidence, and to improve the accuracy of dengue incidence prediction with zero-inflated data.

Methodology
We predicted dengue incidence at six spatiotemporal resolutions and compared their prediction accuracy. Six ML algorithms were compared: generalized additive models, random forests, conditional inference forest, artificial neural networks, support vector machines and regression, and extreme gradient boosting. Data from 2009 to 2012 were used for training, and data from 2013 were used for model validation with quantitative and qualitative dengue variables. To address the inaccuracy in the quantitative prediction of dengue incidence due to zero-inflated data at fine spatiotemporal scales, we developed a hybrid approach in which the second-stage quantitative prediction is performed only when/where the first-stage qualitative model predicts the occurrence of dengue cases.

Principal findings
At higher resolutions, the dengue incidence data were zero-inflated, which was insufficient for quantitative pattern extraction of relationships between dengue incidence and environmental variables by ML. Qualitative models, used as binary variables, eased the effect of data distribution. Our novel hybrid approach of combining qualitative and quantitative predictions demonstrated high potential for predicting zero-inflated or rare phenomena, such as dengue.

Significance
Our research contributes valuable insights to the field of spatiotemporal dengue prediction and provides an alternative solution to enhance prediction accuracy in zero-inflated data where hurdle or zero-inflated models cannot be applied.
Diagnosis of chronic migraine and comorbid neurological disorders in real-life clinical practice
Authors: Golovacheva V. A. , Golovacheva A. A. , Tarshilova A. R. , Osipova V. V. 
Published: October 2024

Chronic migraine (CM) is a neurological disorder whose diagnosis requires not only knowledge of its diagnostic criteria, but also the physician's ability to differentiate between various forms of primary and secondary headache (HA), as well as to recognize comorbid neurological disorders that aggravate the course of CM. Timely and correct diagnosis of CM and comorbid disorders allows to prescribe effective treatment to a patient and convert the migraine from a chronic to an episodic form. The diagnostics of CM and comorbid neurological disorders has not been sufficiently investigated in our country, which formed the basis for this study.Objective: to evaluate the quality of diagnostics of CM and comorbid neurological disorders in real-life neurological practice.Material and methods. The study included 200 patients with CM (63 men and 137 women, mean age 33.1±7.1 years) admitted to A.Ya. Kozhevnikov Clinic of Nervous Diseases (CND) of Sechenov University, complaining of frequent headaches. They had previously been examined and treated by neurologists in other medical institutions on an outpatient and/or inpatient basis. A clinical interview was conducted with all patients to establish a diagnosis and analyze their previous treatment, and a psychometric test was performed to assess symptoms of anxiety and depression.Results. Only 6% of patients had been previously diagnosed with CM, the remaining 94% were incorrectly diagnosed with secondary HA. All patients had previously been prescribed additional examinations, mainly neuroimaging of the brain and ultrasound of the cerebral vessels, although there were no "red flags". None of the patients had been previously assessed for their emotional state, while almost all patients had high situational anxiety (n=190; 95%) and high personal anxiety (n = 180; 90%), there were symptoms of depression (n=190; 95%) of varying severity. Comorbid neurological disorders (medication overuse HA), insomnia, musculoskeletal pain etc.) were diagnosed in 91.5% of patients in CND and in only in 8% of patients in other medical centers.Conclusion. In real-life clinical practice, CM and comorbid neurological disorders are inadequately diagnosed and excessive and unjustified additional examinations are prescribed.
A personalized approach to the treatment of chronic tension-type headache: quality of life of patients
Authors: Tlisova K. M. , Petelin D. S. , Voskresenskaya O. N. , Volel B. A. 
Published: October 2024

Objective: to evaluate the quality of life in a personalized approach to the treatment of chronic tension-type headache (CTTH) in comparison with a standard treatment protocol.Material and methods. The study involved 61 patients with CTTH. Patients were randomly divided into two groups. The first (main) group consisted of patients (n=30) who received a personalized approach with a psychotherapist contributing to the treatment. The comparison group consisted of patients (n=31) who were treated according to a standard protocol with counselling and observation by a neurologist. Pain intensity was assessed using the visual analogue pain scale (VAS). The SF-36 questionnaire was used to assess quality of life. Differences between the groups were analyzed by assessing individual changes in eight different domains of the SF-36 questionnaire for each patient.Results. In the main group, parameters characterizing the physical (pain intensity) and emotional experience of the pain (mental health, social functioning, life activity; p<0.05) decreased after 6 months of treatment when a personalized approach to the treatment of CTTH was applied, compared to the control group (with a standard patient management protocol).Conclusion. The personalized approach showed an improvement of the quality of life of patients with CTTH compared with the standard protocol, allowing us to recommend it for a wider application in clinical practice.
Decreased mitochondrial‐related gene expression in adipose tissue after acute sprint exercise in humans: A pilot study
Authors: Esbjörnsson Mona , Rundqvist Håkan C. , Norman Barbara , Österlund Ted , Rullman Eric , Bülow Jens , Jansson Eva 
Published: October 2024

AbstractThe aim was to examine the acute effects of sprint exercise (SIT) on global gene expression in subcutaneous adipose tissue (AT) in healthy subjects, to enhance understanding of how SIT influences body weight regulation. The hypothesis was that SIT upregulates genes involved in mitochondrial function and fat metabolism. A total of 15 subjects performed three 30‐s all‐out sprints (SIT). Samples were collected from AT, skeletal muscle (SM) and blood (brachial artery and a subcutaneous AT vein) up to 15 min after the last sprint. Results showed that markers of oxidative stress, such as the purines hypoxanthine, xanthine and uric acid, increased markedly by SIT in both the artery and the AT vein. Purines also increased in AT and SM tissue. Differential gene expression analysis indicated a decrease in signaling for mitochondrial‐related pathways, including oxidative phosphorylation, electron transport, ATP synthesis, and heat production by uncoupling proteins, as well as mitochondrial fatty acid beta oxidation. This downregulation of genes related to oxidative metabolism suggests an early‐stage inhibition of the mitochondria, potentially as a protective mechanism against SIT‐induced oxidative stress.
Agreement between equation‐derived body fat estimator and bioelectrical impedance analysis for body fat measurement in middle‐aged southern Indians
Authors: Endukuru Chiranjeevi Kumar , Gaur Girwar Singh , Yerrabelli Dhanalakshmi , Sahoo Jayaprakash , Vairappan Balasubramaniyan 
Published: October 2024

AbstractExcess body fat (BF) contributes to metabolic syndrome (MetS). The Clínica Universidad de Navarra—Body Adiposity Estimator (CUN‐BAE) is an equation‐derived body fat estimator proposed to assess BF. However, its efficiency compared to the standard method is unknown. We aimed to compare the efficacy of CUN‐BAE with the standard method in estimating BF in southern Indians. We included 351 subjects, with 166 MetS patients and 185 non‐MetS subjects. BF was obtained from the standard bioelectrical impedance analysis (BIA) method and measured by CUN‐BAE in the same subjects. We compared the efficacy of CUN‐BAE in estimating BF with that of BIA via Bland–Altman plots, intraclass correlation coefficients, concordance correlation coefficients and the kappa index. The mean body fat percentage (BF%) values measured by BIA and CUN‐BAE in all the subjects were 28.91 ± 8.94 and 29.22 ± 8.63, respectively. We observed significant absolute agreement between CUN‐BAE and BIA for BF%. BIA and CUN‐BAE showed good reproducibility for BF%. CUN‐BAE had accuracy comparable to BIA for detecting MetS using BF%. Our findings indicate that CUN‐BAE provides precise BF estimates similar to the BIA method, making it suitable for routine clinical practice when access to BF measurement devices is limited.
The Effect of Audio-Assisted Reading on Incidental Learning of Present Perfect by EFL Learners
Authors: Nushi Musa , Jahanbin Peyman 
Published: October 2024

Abstract
This study applies audio-assisted reading (AAR), a technique that provides multimedia input, to encourage incidental learning of the present perfect tense. The decision to choose this tense was informed by previous studies, which have shown that its multifunctional nature presents EFL learners with considerable challenges. Thirty-four Iranian EFL learners recruited through convenience sampling participated in this eight-week-long research. The learners were assigned to the experimental and control groups. The experimental group received the AAR instruction while the control group received reading-only instruction. The analysis of the data collected through pre-test, post-test, and delayed post-test indicated that the learners not only learned the target grammar structure significantly better through AAR, but also retained it longer. The findings of the study and the implications for language teaching and learning are discussed.
Small size dual-band coupled-line coupler for WiMAX applications
Authors: Sedighi Maragheh Samaneh , Rahimi Mina , Chaharmahali Iman , Dousti Massoud 
Published: October 2024

Abstract
In this paper, a symmetric compact dual-band coupled-line coupler is proposed using microstrip transmission lines, circular resonators, and spiral lines for WiMAX applications. The proposed coupler provides two narrow operating bands, high coupling and isolation, and suitable return loss. The primary design consists of two parallel-coupled lines with a flat coupling over a wide frequency band. Then, the bandwidth, return loss, and isolation are optimized by adding circular resonators and spiral lines to achieve a compact size. In this design, the return loss is better than 30–35 dB in the bandwidth 3.4–5.79 GHz. Finally, this structure is fabricated using a Rogers-RT Duroid 5,880 substrate with a thickness of 20 mil, a loss tangent of 0.0009, a dielectric constant of 2.2, and an area of 18.8 × 14 mm2. The results of the measurements are in good agreement with those of the simulation.
Evaluation of fetal growth and birth weight in pregnancies with placenta previa with and without placenta accreta spectrum
Authors: Agarwal Neha , Papanna Ramesha , Sibai Baha M. , Garcia Alexandra , Lai Dejian , Soto torres Eleazar E. , Amro Farah H. , Blackwell Sean C. , Hernandez-Andrade Edgar 
Published: October 2024

Abstract

Objectives
We evaluated fetal growth and birthweight in pregnancies with placenta previa with and without placenta accreta spectrum (PAS).

Methods
We retrospectively studied pregnant patients with placenta previa with or without PAS diagnosed at 20–37 weeks’ gestation. Estimated fetal weight (EFW) percentile and fetal growth rate were calculated based on ultrasound at two timepoints: 20–24 and 30–34-weeks’ gestation. Fetuses were small (SGA) or large for gestational age (LGA) when EFW or abdominal circumference was <10th or >90th percentile for gestational age, respectively. Fetal growth rate was estimated by subtracting EFW percentiles from the two ultrasounds. Birthweight in grams and percentiles were estimated via Anderson and INTERGROWTH-21 standards adjusted for neonatal sex. EFW percentiles, fetal growth rate, birth weight and birthweight percentiles were compared between patients with placenta previa with and without PAS.

Results
We studied 171 patients with and 146 patients without PAS. SGA rates did not differ between groups on first (PAS n=3, no-PAS n=3, p=0.8) or second ultrasound (PAS n=10, no-PAS n=8, p=0.8). LGA rates were similar between groups on first (PAS n=11, no-PAS n=9, p=0.8) and second ultrasound (PAS n=20, no-PAS n=12, p=0.6). The growth rate was higher in fetuses with PAS than placenta previa (1.22 ± 22.3 vs. −4.1 ± 18.1, p=0.07), but not significantly. The birthweight percentile was higher in the PAS than the placenta previa group (74 vs. 67, p=0.01). On multi-linear regression, birthweight percentile remained higher in the PAS group, but not significantly.

Conclusions
Placenta previa with or without PAS is not associated with SGA, LGA or lower birthweight.
Navigating linguistic ideologies and market dynamics within China’s English language teaching landscape
Authors: Mei Yunbo 
Published: October 2024

Abstract
This study explores the intricate interplay of linguistic ideologies, market dynamics, and linguistic habitus within the context of English language education in China. Analysis of Chinese English language teachers’ (CELTs) discourse on linguistic insecurity reveals a strong association between accentedness and incompetence, as well as between nativeness and teacher expertise. Despite dissatisfaction with nativeness-oriented criteria prevalent in the field, most CELTs reported experiencing anxiety due to the social stigma surrounding Mandarin-accented English. While certain Inner Circle English varieties are viewed as the most valuable capital, local and other non-Inner Circle varieties are considered the least valuable. Notably, Mandarin-accented English gains higher symbolic value than other perceived nonstandard English varieties beyond the teaching domain. This pricing mechanism within China’s English language teaching (ELT) landscape deviates from the price formation model of world Englishes proposed in previous work, which assigns a greater value to Outer Circle varieties than Expanding Circle varieties. By contextualizing CELTs’ experiences within broader language policies, this study illustrates how national interests, beyond the influence of Inner Circle publishers, intensify native-speakerism in China’s ELT market, thus emphasizing the intricate nature of explaining nuanced pricing patterns in the autonomous market within Expanding Circle contexts.
Verifying the morpho-semantics of aspect via typological homogeneity
Authors: Zuchewicz Karolina 
Published: October 2024

Abstract
This article investigates grammatical aspect in Slavic and non-Slavic languages, starting from Slavic languages, by providing crosslinguistic evidence for the presence of the so-called concept-dependent default aspect. This line of research builds on and extends accounts that draw a parallel between the structure and semantics of aspect. I show that structural simplicity (relating to whether the imperfective or the perfective is the derivation base for the respective reverse form) corresponds to prominence in meaning. More precisely, I assume that (im)perfective basic morphological or syntactic representations are indicators for primary interpretations. By building upon existing studies in typology, I introduce typological homogeneity as a criterion for the establishment of a form-meaning (in Slavic morpho-semantic) relationship within (im)perfective realizations of a particular verbal concept. This criterion complements high frequency and preferred choice in associative experiments as properties of aspectual alpha-verbs. In this paper, I discuss typological homogeneity by using the primary example of verbs of evidence collection, also called reveal-type predicates, and by additionally discussing manner-of-speaking and speech act verbs. These novel data provide evidence of typological homogeneity in the aspectual representation.
Optical control of topological end states via soliton formation in a 1D lattice
Authors: Jörg Christina , Jürgensen Marius , Mukherjee Sebabrata , Rechtsman Mikael C. 
Published: October 2024

Abstract
Discrete spatial solitons are self-consistent solutions of the discrete nonlinear Schrödinger equation that maintain their shape during propagation. Here we show, using a pump-probe technique, that soliton formation can be used to optically induce and control a linear topological end state in the bulk of a Su–Schrieffer–Heeger lattice, using evanescently-coupled waveguide arrays. Specifically, we observe an abrupt nonlinearly-induced transition above a certain power threshold due to an inversion symmetry-breaking nonlinear bifurcation. Our results demonstrate all-optical active control of topological states.
Crystal structure of 4-iodobenzyl 2-(6-methoxynaphthalen-2-yl) propanoate, C21H19IO3
Authors: Wang Rui , Yuan Yijia , Chen Le , Sun Wei 
Published: October 2024

Abstract
C21H19IO3, monoclinic, P21 (no. 4), a = 11.8252 (4) Å, b = 5.4966 (2) Å, c = 14.9468 (5) Å, β = 106.888 (1)∘, V = 929.62 (6) Å3, Z = 2, R

gt
(F) = 0.0134, wR

ref
(F
2) = 0.0319, T = 100 (2) K.
Investigating the multifunctionality of Cu2+ doped LaSrMnO3: understanding structural, optical, and magnetic responses
Authors: Srinivasan Padmavathi , Andichamy Murugeswari , Sahadevan Jhelai , Prakash Nithesa , Chandrasekaran Saravanan , Balaraman Nirmal Kumar , Sankaran Esakki Muthu 
Published: October 2024

Abstract
This study examines the impact of copper ions (Cu2+) on the structural, optical, and magnetic, characteristics of La0.6Sr0.4Mn1-xCuxO3 (LSMCO) manganites. Various techniques, including X-ray diffraction, field emission scanning electron microscopy, Raman spectroscopy, DC magnetization, and photoluminescence measurements were employed for a comprehensive analysis. Structural examinations revealed that all compositions exhibit a single-phase orthorhombic structure. Raman spectroscopy reveals the structural distortion due to the inclusion of Cu at Mn site. The photoluminescence properties of the manganite were found to be influenced by the excitation wavelength, demonstrating energy transfer from Mn ions. Magnetic investigations indicated that the introduction of Cu leads to a reduction in the saturation magnetization of the manganite.
НЕЯВНЫЙ ИТЕРАЦИОННЫЙ МЕТОД РЕШЕНИЯ ЛИНЕЙНЫХ НЕКОРРЕКТНЫХ ОПЕРАТОРНЫХ УРАВНЕНИЙ
Authors: БЕШУА Т. 
Published: October 2024

В данной работе мы исследуем новый неявный метод решения некорректных линейных операторных уравнений первого рода с компактными операторами. Для демонстрации устойчивости и сходимости этой схемы может использоваться теория регуляризации. Кроме того, мы получаем результаты сходимости и эффективные критерии остановки в соответствии с принципом невязки Морозова. Для демонстрации верности нашего неявного метода и его применимости к задачам устранения размытости проводятся численные эксперименты.
In this work, we study a new implicit method to compute the solutions of ill-posed linear operator equations of the first kind under the setting of compact operators. The regularization theory can be used to demonstrate the stability and convergence of this scheme. Furthermore, we obtain convergence results and effective stopping criteria according to Morozov's discrepancy principle. Numerical performances are calculated to show the validity of our implicit method and demonstrate its applicability to deblurring problems.
ЛИНЕЙНЫЕ КВАЗИМОНОТОННЫЕ И ГИБРИДНЫЕ СЕТОЧНО-ХАРАКТЕРИСТИЧЕСКИЕ СХЕМЫ ДЛЯ ЧИСЛЕННОГО РЕШЕНИЯ ЗАДАЧ ЛИНЕЙНОЙ АКУСТИКИ
Authors: ГУСЕВА Е.К. , ГОЛУБЕВ В.И. , ПЕТРОВ И.Б. 
Published: October 2024

Система уравнений линейной акустики является гиперболической и описывает процесс распространения акустических волн в деформируемой среде. Важным свойством используемых для её численного решения схем является высокий порядок аппроксимации. Оно позволяет проводить моделирование процесса распространения возмущений на достаточно большие расстояния. Не менее важным является свойство монотонности используемых схем, предотвращающее появление нефизических осцилляций решения. В настоящей работе представлены линейные квазимонотонные и гибридные сеточно-характеристические схемы для линейного уравнения переноса и одномерной акустической системы. Для их построения использован метод анализа в пространстве неопределённых коэффициентов, предложенный Холодовым А.С., и сеточно-характеристический критерий монотонности. Рассматривались широкие пространственные шаблоны, включающие от пяти до семи узлов расчётной сетки. На задаче об отражении продольной волны с резким фронтом от границы раздела сред с различающимися параметрами проведено сравнение полученных численных решений.
The system of linear acoustic equations is hyperbolic. It describes the process of the acoustic wave propagation in deformable media. An important property of the schemes used for the numerical solution is their high approximation order. This property allows one to simulate the perturbation propagation process over sufficiently large distances. Another important property is monotonicity of the schemes used, which prevents the appearance of non-physical solution oscillations. In this paper, we present linear quasi-monotone and hybrid grid-characteristic schemes for a linear transport equation and a one-dimensional acoustic system. They are constructed by a method of analysis in the space of unknown coefficients proposed by A.S. Kholodov and a grid-characteristic monotonicity criterion. Wide spatial stencils with five to seven nodes of the computational grid are considered. Reflection of a longitudinal wave with a sharp front from the interface between media with different parameters is used to compare the numerical solutions.
ТОЧНОЕ ВЫЧИСЛЕНИЕ ПОГРЕШНОСТИ АППРОКСИМАЦИИ КРАТНЫХ СТОХАСТИЧЕСКИХ ИНТЕГРАЛОВ ИТО
Authors: РЫБАКОВ К.А. 
Published: October 2024

В статье представлены формулы для точного вычисления погрешности аппроксимации кратных стохастических интегралов Ито на основе их ортогонального разложения. В качестве примера рассмотрены стохастические интегралы Ито кратностей 2-4, которые используются при построении численных методов решения стохастических дифференциальных уравнений с порядками сильной сходимости 1-2.
In the article, formulas for exact calculation of the approximation error of multiple Itô stochastic integrals based on their orthogonal expansion are obtained. As an example, stochastic Itô integrals with multiplicities 2-4 are considered, which are used in the numerical methods for solving stochastic differential equations with orders of strong convergence 1-2.