bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on the landslide caused by difference creep behavior of loess under highway excavation
Authors: Yang Xuanyu , Liu Yaming 
Published: October 2024

Abstract

Large-scale road construction in mountainous areas inevitably leads to numerous excavation slopes, particularly in the Loess Plateau, characterized by abundant ancient landslides and complex stratigraphy. Excavation-induced stress relief can easily reactivate these ancient landslides, posing significant threats to engineering safety. This study takes an ancient landslide in the Loess Plateau as a case example. Field investigations clarified the lithological characteristics of the strata. Indoor triaxial unloading tests were conducted to examine the unloading creep behavior of silty soil and clay located near the sliding zone. Finally, numerical simulations were employed to analyze the evolution process of landslide reactivation induced by excavation. The study revealed the following findings: (1) The primary factor inducing the landslide is the differential unloading creep behavior of silty soil and clay. Silty soil readily reaches an accelerated creep state under unloading conditions, whereas clay remains relatively stable with smaller deformation. The creep behavior of the soil can be well described using the Nishihara model. (2) Comparison of two unloading stress paths showed that vertical stress unloading causes minor rebound deformation with minimal impact on overall deformation. In contrast, lateral stress unloading results in significant soil deformation, which is the main cause of the landslide. (3) During the landslide, there was an abrupt change in pore water pressure within the soil, which can be combined with deep soil deformation as a key indicator for monitoring and early warning of this type of landslide.
Differential symptom relief profiles of menopausal therapies: an online survey study
Authors: Martin-Key Nayra A. , Funnell Erin L. , Tomasik Jakub , Bahn Sabine 
Published: October 2024

Abstract

Background:
While there exist safe hormonal and non-hormonal therapeutic interventions for the menopause, their efficacy profiles are not fully characterized. To use a symptom checklist to examine menopausal symptom relief associated with different treatments.
Methods:
An online survey study was conducted between December 2023 and February 2024. Convenience sampling was conducted, with participants recruited via social media, email, through relevant foundations and support groups, and by word-of-mouth. Inclusion criteria were: (1) ≥ 18 years, (2) assigned female at birth, (3) strong comprehension of the English language, and (4) must be currently experiencing symptoms of the menopause or menopause transition. 3330 respondents consented to participate in the study and of these, 91.95% (N = 3062) who had completed at least 88% of the survey were included in the analysis. Symptom relief per treatment (transdermal hormone replacement therapy (HRT), oral HRT, vaginal HRT, antidepressants, testosterone, cognitive behavioral therapy (CBT)/other therapy/counseling) was assessed using the symptoms included in the Menopause-Specific Quality of Life (MENQOL) questionnaire, which measures four symptom domains: vasomotor, psychosocial, physical, and sexual.
Results:
Data from a total of 3062 respondents were included for analysis (mean age = 51.97, SD = 5.24). Treatment response rates differed significantly across the domains (vasomotor: F(5,2340) = 204.93, p < 0.001, η2 = 0.31; psychosocial: F(5,2340) = 75.12, p < 0.001, η2 = 0.14; physical: F(5,2340) = 65.46, p < 0.001, η2 = 0.12; sexual: F(5,2340) = 89.34, p < 0.001, η2 = 0.16). Transdermal HRT performed better at reducing vasomotor symptoms relative to all other options. Regarding psychosocial symptoms, CBT/other therapy/counseling outperformed all other treatment options. The use of transdermal HRT and testosterone was associated with greater response rates in physical symptoms relative to other treatments. Finally, vaginal HRT and testosterone were associated with significantly higher response rates in sexual symptoms in comparison to all other treatments.
Conclusions:
The findings demonstrate differential response rates to menopausal treatments across symptom domains, underscoring the importance of a comprehensive, multidimensional approach to menopausal symptom management. Utilizing a symptom checklist can facilitate the tailoring of treatment plans for specific symptom profiles and patient needs. The outcomes of this study hold considerable implications for improving and shaping treatment guidelines for the menopause.
Microalgal oil as an alternative source of essential nutrients omega-3 DHA and EPA
Authors: Bailey Eileen , Wojcik Jérôme , Rahn Maike , Roos Franz , Spooren Anneleen , Koshibu Kyoko 
Published: October 2024

Abstract

Omega-3 fatty acids (FA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are essential macronutrients critical for maintaining healthy cardiovascular, brain, eye, and immune functions. Microalgae offer a promising sustainable source of EPA and DHA due to the possibility to produce an almost unlimited supply of omega-3 FA through a controlled fermentation process. A direct comparison of plasma EPA and DHA bioavailability from microalgal vs. fish oil has not been reported due to the lack of a microalgal oil with appreciable levels of EPA. We analyzed the plasma phospholipid levels of EPA and DHA in 74 healthy men and women after 6 and 14 weeks of consuming omega-3 FA supplements derived from microalgal or fish oil in a randomized, double-blind placebo-controlled parallel group clinical trial. We were able to demonstrate that the plasma phospholipid EPA and DHA levels are statistically the same after supplementation with microalgal and fish oils, indicating that microalgal oil can be a reliable replacement for fish oil to support the high global demand for omega-3 FA.
Susceptibility Assessment and Sensitivity Analysis of Geological Disasters in Chengdu–Chongqing Urban Agglomeration Based on Geographical Detector Model
Authors: Guo Tengjiao , Cao Qi , Ma Yufu , Yang Liejuan 
Published: October 2024

Abstract

The Chengdu–Chongqing urban agglomeration is a significant platform for China’s Western development strategy. However, frequent geological disasters constrain the region’s socioeconomic development and severely affect its natural ecological environment. Evaluating the susceptibility of urban agglomerations to geological disasters and identifying sensitivity factors are crucial for predicting disaster events, assessing disaster risks, and formulating precise disaster prevention and mitigation strategies. The first step in evaluating geological disaster susceptibility is understanding the influence of regional natural geographic conditions on disasters, which is used to identify the main influencing factors and accurately evaluate disaster susceptibility. The key to sensitivity analysis is identifying which interactions between influencing factors have the greatest impact on disasters, thus focusing attention on sensitive areas when formulating mitigation strategies. Therefore, this study constructed a susceptibility assessment model for geological hazards and developed a method for sensitivity identification. Based on geological disaster distribution points, geological and geomorphological conditions, soil and vegetation types, and land use, the four functions of the geographic detector model are used to identify the influencing factors of geological hazards, calculate the forces of influencing factors on geological hazards, divide the susceptibility levels of single factors, detect the interactions between factors, compare the mechanisms of influencing factors on geological hazards, and conduct susceptibility assessment and sensitivity analysis. In order to improve the accuracy of the geographic detector model, various classification methods were tested on discrete data to select the optimal geographic detector results. The results indicate that elevation, soil type, geomorphological type, and vegetation type significantly affect geological disasters; The research area has an elevation greater than 632m, with soil types of primary inceptisols and anthrosols, and landform types of medium-gradient mountain and inland water, lakes, which has a higher susceptibility; The interaction between soil type and soil erosion increases the sensitivity of disasters, and the interaction between soil near rivers and soil subjected to water erosion is highly sensitive.
Beyond Pieces: Role of AI in Chess Strategy Precision
Authors: TIRADO AUGUSTO , PILATTI LUIZ 
Published: October 2024

Abstract

This study analyzes the evolution of strategic precision in chess via quantitative and documentary analysis of 1204 historical matches. Stockfish 16.1 was employed to measure 'Centipawn Loss', and the data were organized via Excel and JASP. The results highlight an increase in precision and a reduction in errors, particularly since the 1990s, emphasizing the role of AI. A significant inverse correlation between precision and centipawn loss (r=-0.85, p<.001) suggests improvement in player skills over time. Champions displayed greater precision than challengers did (t=4.563, df=63, p<.001), with Magnus Carlsen achieving the highest average precision (97.364%) and the lowest variability (CV=2.12%). This illustrates the impact of AI on the development of more sophisticated strategies. The study underscores how AI enhances human intuition and strategic thinking through interactive computational systems. This study concludes that chess players' precision has significantly improved with AI integration, particularly since the 1990s, when unprecedented performance levels in competitive chess have been achieved.
Neutral buoyancy as a simple approach to implement microgravity
Authors: Kim Ho Yong , Kang Sungwook , Oh Se Heang 
Published: October 2024

Abstract

It is well recognized that interesting biological phenomena occur in various organisms, including humans/animals, plants, and bacteria, in the microgravity environment of space. However, there are limitations to investigating these phenomena in real space and under conditions simulating microgravity on Earth. In this study, we developed a simulated microgravity system based on neutral buoyancy. It has been demonstrated that this system facilitates the suspension of cell spheroids for sufficient periods for cell culture and effectively replicates the cellular behaviors observed in actual microgravity environments, such as maintenance of stemness and suppression of osteogenic differentiation, with simultaneous promotion of chondrogenic and adipogenic differentiations in stem cells. Therefore, it serves as a simple and effective platform for various microgravity research endeavors.
The role of the left medial prefrontal cortex and posterior cingulate cortex in processing positive emotion words: Evidence from a meta-analysis and an empirical study
Authors: Dang Qinpu , Ma Fengyang , Chen Jingyu , Guo Taomei 
Published: October 2024

Abstract

In the present research, we examined the neural substrates supporting positive word processing by using Activation Likelihood Estimation (ALE) and Seed-based d Mapping (SDM) approaches. In study 1, taking effect sizes, peak coordinates of brain region activation, sample sizes, and experimental paradigms into consideration in ALE and SDM meta-analyses, we identified two largely overlapping brain regions with comparable peak coordinates, i.e., the left medial prefrontal cortex (mPFC) and the left posterior cingulate cortex (PCC), showing greater activities in these two regions during positive word processing than neutral word processing. In Study 2, we further examined the universality and language specificity of neural mechanisms underlying positive word processing by comparing two typologically distant languages, Chinese and English, in both native speakers and bilinguals using ROI (regions of interest) analyses. The results showed no significant difference across two native languages or between bilinguals’ two languages, highlighting the crucial roles of the two regions in positive word processing. These findings also hold implications for the models of bilingual emotion processing (e.g., the valence hypothesis and the hierarchical emotion model) and the system accommodation hypothesis.
Association of oxidative balance score with biological aging in US adults: a quantile regression analysis
Authors: Jin Yujing , Li Shuyue , Feng Sen , Huang Linyin , Qu Shifang , Cheng Xiaowei , Wang Ruying , Liu Shiwei , Mohamed Zakaria Ahmed , Yao Yan 
Published: October 2024

Abstract

Background
The oxidative stress theory of aging is one of the prominent theories in the field of aging research. The Oxidative Balance Score (OBS) serves as a comprehensive tool for evaluating the effects of different diets and lifestyles on the oxidative/antioxidant system, however, its correlation with biological aging remains ambiguous. We thus conducted this study to explore the relationship between OBS and biological aging in American adults using quantitative measures.
Methods
We conducted a cross-sectional study using the NHANES 1999–2018 database. We examined several biological aging indicators, including biological age, phenotypic age, telomere length, and serum klotho levels. A weighted multiple linear regression model and smoothed fitted curves were employed to analyze the linear and nonlinear relationship between OBS and biological aging markers. Additionally, quantile regression was utilized to further explore their associations.
Results
A significant negative correlation was found between OBS and both biological and phenotypic ages, whereas a significant positive correlation was observed between telomere length and serum klotho levels. Upon comparing the highest tertile of OBS with the lowest tertile, the fully adjusted β values for OBS in the highest tertile were − 0.663 (-0.867, -0.458), -1.792 (-2.190, -1.393), and 32.332 (8.193, 56.471) for biological age, phenotypic age, and serum klotho, respectively. Notably, the positive correlation between telomere length [0.031 (0.007, 0.056)] and OBS was significant only in the partially adjusted model. The negative correlation between OBS and biological aging was consistent in individuals aged over 60 years. In quantile regression, the negative correlation between OBS, DOBS, and LOBS was most significant at the 0.93 percentile of biological age and 0.95 percentile of phenotypic age. Moreover, the serum klotho concentration exhibited a positive correlation with LOBS across all quantiles, with the strongest correlation observed at the 0.95 percentile.
Conclusions
Our study suggests a dose-response relationship between OBS and biological aging, indicating adopting an antioxidant-rich diet and lifestyle may yield beneficial effects on aging. These findings offer theoretical insights into strategies for aging prevention.
A Passive Rectification Mechanism and Its Potential Application in Capturing Energy from Vibrating Graphene Films
Authors: Jiang Jiantang 
Published: October 2024

Abstract

Here we point out that graphene films, which constantly vibrate at the atomic scale, are also a kind of spontaneously formed non-equilibrium ordered structure. A new passive rectification mechanism is proposed here, which utilizes the asymmetric thermal effect of the two junctions of a thermocouple to convert weak alternating current into direct current. Based on the aforementioned rectification mechanism, we also propose a model for capturing the vibration energy from graphene films and conduct quantitative analysis. The analysis shows that the output power of this model is nearly 6.71e-13 watts and it has the potential for further improvement.
Sistema de supervisión aplicado al robot de agricultura de precisión CERES para el cuidado de los cultivos agrícolas
Authors: Moreno Cortes David Santiago , Solaque Guzmán Leonardo Enrique , Velasco Vivas Alexandra 
Published: October 2024

La reforma significativa en los procesos de producción que emplean los agricultores para garantizar la cadena alimenticia en Colombia requiere desarrollos que aporten a la optimización de recursos, utilización adecuada de insumos y un menor uso de mano de obra. Para esto, la robótica juega un papel fundamental que puede ayudar a afrontar estos retos por medio de sistemas supervisores capaces de gestionar tareas coordinadas en beneficio del agro. Este artículo presenta el desarrollo de un sistema de supervisión para un robot que brinda cuidado y protección a la salud de los cultivos de papa, orientado a prevenir problemas fitosanitarios, y garantizar la salud de la planta mediante la nutrición necesaria. La estructura del sistema supervisor implementada en el robot agrícola CERES se basa en la teoría de toma de decisiones adaptativa que funciona en tiempo real. El algoritmo de supervisión se integró a la arquitectura de programación general del robot agrícola CERES mediante el lenguaje Python, codificando el algoritmo de supervisión e integrarlo a la arquitectura de programación general con la que cuenta el robot agrícola que para el caso está basada en ROS. Obteniendo una jerarquización de las labores para el cuidado de los cultivos de papa.
LAS CONSTELACIONES DE THIRLWALL: UN ANÁLISIS PARA EL CASO DE AMÉRICA LATINA, 1992-2020
Authors: Avendaño Vargas Blanca Lilia , Domínguez Rubio Ernesto 
Published: October 2024

RESUMEN
En este artículo evaluamos teórica y empíricamente el crecimiento económico de Argentina, Brasil, Chile, Colombia, México y Perú durante el periodo 1992-2020 utilizando el enfoque teórico de las constelaciones de Thirlwall (2001). Estimamos la tasa natural de crecimiento endógena, la tasa de crecimiento garantizada y la tasa de crecimiento consistente con el equilibrio de la balanza de pagos incluyendo los flujos de capital, en sus versiones simple y extendida. Nuestra hipótesis plantea que las economías seleccionadas están caracterizadas principalmente por una restricción interna al crecimiento, que se manifiesta a través de la divergencia entre la tasa natural de crecimiento endógena y la tasa de crecimiento garantizada. Los flujos de capital, incorporados en la tasa de crecimiento compatible con el equilibrio de la balanza de pagos, han contribuido a relajar la restricción externa; sin embargo, no se ha observado un crecimiento acelerado de las economías en las últimas tres décadas.

THIRLWALL’S CONSTELLATIONS: AN ANALYSIS THE CASE OF LATIN AMERICA, 1992-2020
ABSTRACT
In this paper, we theoretically and empirically assess the economic growth of Argentina, Brazil, Chile, Colombia, Mexico and Peru during the period 1992-2020, using the theoretical framework of Thirlwall’s (2001) constellations. We estimate the endogenous natural rate of growth, the warranted growth rate and the growth rate consistent with the balance of payments equilibrium, both in its simple and extended version, incorporating capital flows. Our hypothesis is that the selected economies are mainly characterized by an internal growth constraint, reflected in the divergence between the endogenous natural rate of growth and the warranted growth rate. Capital flows, incorporated in the growth rate consistent with the balance of payments equilibrium, have alleviated the external constraint; however, an accelerated economic growth has not been observed in these economies over the last three decades.
Evaluation of the antiviral activity of different extracts of Gliricidia sepium and Xylopia aethiopica on enteroviruses isolated in Côte d'Ivoire
Authors: LIDJI CASILDE JESSICA SINTES RUTH , BOLOU Gbouhoury Eric-Kévin , DROUBLY-BOUAGNON Julie José-Rita , KONAN Gbê Kouakou N’Dri Ange , KAMO Irié Lou Bohila Emilie , N’GUESSAN Jean David , DJAMAN Allico Joseph 
Published: October 2024

Objective : The emergence of viral infections has highlighted the need for new antiviral molecules. This study is part of an exploration into finding new antiviral compounds from medicinal plants used in traditional pharmacopoeia in Côte d'Ivoire. The aim is to determine which of the extracts from Gliricidia sepium leaves and Xylopia aethiopica fruits (hydroalcoholic, hexane/water, ethyl acetate/water, aqueous) exhibits the best antiviral activity.
Methodology: The cytotoxicity of each partition P1 (hydroalcoholic), P2 (hexane/water), P3 (ethyl acetate/water), P4 (aqueous) of Gliricidia sepium leaves and P1' (hydroalcoholic), P2' (hexane/water), P3' (ethyl acetate/water), P4' (aqueous) of Xylopia aethiopica fruits is determined on RD cells. The antiviral activity of these partitions was then evaluated against a type 1 enterovirus.
Results: The hexane-water partition showed high antiviral activity against type 1 enterovirus, with an inhibition of 65.78±9.21% at a concentration of 1 μg/mL for Gliricidia sepium leaves, compared to a non-significant inhibition of 86.84±5.26% at 31.25 μg/mL for Xylopia aethiopica fruits. Additionally, the aqueous partition of Gliricidia sepium induced an inhibition of 50±0.01% at a concentration of 1.95 μg/mL.
Conclusion: Hexane-water and aqueous partitions of Gliricidia sepium showed́ potent antiviral activitý against enterovirus 1 than those of Xylopia. aethiopica.
Keywords: plant partition, RD cells, enterovirus type 1.
Desarrollo de un servicio de gestión ABM para FTTH
Authors: Peliza Carlos , Serra Ariel , Dufour Fernando 
Published: October 2024

En este sondeo, que forma parte del trabajo en redes de telecomunicaciones que viene desarrollando el grupo de investigación, continuamos dentro del universo de los pequeños y medianos proveedores de internet que utilizan fibra óptica para proporcionar el servicio, también conocidos como ISP de FTTH por su sigla en inglés Fiber To The Home.
A propósito de la cuestión, ha de reconocerse que la fibra óptica no es la única manera de provisión de un ISP pyme, sin embargo, por facilidades de instalación, durabilidad y rendimiento, por sí misma, tiende a desplazar a la opción más económica que es el radioenlace o el suministro de internet por alguna forma Wireless.
Siendo que la necesidad de conectividad es creciente y las antiguas concesionarias prestadoras de Telecomunicaciones parecen dejar el servicio en manos de pyme en zonas de poca rentabilidad o de riesgo, aparece como mandatorio conocer las dificultades que atraviesan los ISP cuando deben gestionar clientes a medida que la red crece en cantidad.
En ese sentido, en el momento en que la red nace como FTTH o va mutando de Wireless a FTTH, proporcionar diferentes opciones de precios por el servicio es un diferencial que no puede dejarse de lado, aun cuando traiga una complicación como la de dedicar más tiempo a la gestión del cliente.
En resumen, la forma de crecer sin enloquecer de un ISP pyme, viene de la mano de automatizar las gestiones ABM[1] de sus clientes y la forma óptima de automatizarlas es conociendo a fondo las posibilidades y dificultades que se enfrentan en esta tarea.
Asimismo, la oferta de sistemas de gestión de clientes existente implica un canon dolarizado que complica las finanzas.

[1] ABM acrónimo de Alta/Baja/Modificación