bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of anthropogenic habitat fragmentation on the genetic connectivity of the threatened endemic Campylorhynchus yucatanicus (Aves, Trogloditydae) in Yucatan Peninsula, Mexico
Authors: Serrano-Rodríguez Anay , Escalona-Segura Griselda , Rodríguez Antonio González , Machkour-M'Rabet Salima , Ruiz-Montoya Lorena , Elias Eduardo E. Iñigo , Plasencia-Vázquez Alexis H. 
Published: July 2022

Abstract
Identifying connectivity patterns among remnant bird populations and their relationship with land use practices and subjacent habitat fragmentation is key for implementing appropriate management strategies for species conservation. The coastal thorn scrub forest and dune vegetation complex in the northern Yucatan Peninsula has been affected by coastal development. These human induced processes of land use change can affect the Yucatan Wren (Campylorhynchus yucatanicus), an endemic bird to this vegetation types with a narrow distribution. To identify possible anthropogenic barriers to connectivity of populations of C. yucatanicus, we collected 140 samples from 14 localities and used seven nuclear microsatellite loci to describe the current structure and genetic diversity of populations of C. yucatanicus. We explored the relationship between the genetic variability of populations and landscape structure through regression models. In addition, we described the relationship between genetic distance and landscape resistance. We found four genetic populations with Bayesian clustering methods. Human settlements and availability of adequate habitat limit the connectivity between sites due to ongoing land use changes. We suggest some management actions for conservation of this species, and we propose to change the IUCN threat category to "endangered" because of today the species has a more restricted distribution, small population, habitat degradation, loss of connectivity, and loss of genetic variability.
The Relationship Between Stress Life Events and Adolescents' Sleep Problems: A Moderated Mediation Model
Authors: Liu Ting , Zou Hongyu , Tao Zhiyuan , Qiu Boyu , He Xu , Chen Yanrong , Wang Sixian , Zhang Wei 
Published: July 2022

Abstract
In recent years, adolescent sleep problems have received increasing attention. Stressful life events have been found to be a risk factor for sleep problems, but little is known about the components that may explain or influence this association. To investigate this, present research tested whether depressive symptoms mediated the association between stressful life events and adolescents' sleep problems, as well as whether emotional regulation skills decreased this process. A sample of 513 Chinese university students (32.2% males, mean age = 19.04 years, SD = 1.21) completed anonymous questionnaires regarding stressful life events, depressive symptoms, emotional regulation and sleep problems (examined using Adolescent Self-Rating Life Events Checklist, Epidemiologic Studies Depression Scale for Children, Pittsburgh Sleep Quality Index and Response to Stress Questionnaire). The studies included covariates such as gender, age, and socioeconomic level. Depressive symptoms were shown to partially mediated the association between stressful life events and sleep problems in structural equation models. Emotional regulation buffered the negative effects of stressful life events on depressive symptoms. The results show that promoting emotional regulation could be beneficial in preventing and intervening sleep problems related to stressful life events.
Relationship between unemployment and policy uncertainty in Nigeria: ARDL evidence from 1990 to 2020
Authors: Zaria Yusuf Bala 
Published: July 2022

Abstract
Nigeria has been facing policy uncertainty due to unemployment, poor infrastructure development, and weak foreign direct investment inflows. The government seeks policies that can effectively drive its macroeconomic activities as intervention. As such, this study assessed the determinants of policy uncertainty from 1990 to 2020. The dynamic autoregressive distributed lag approach was employed to analyse the positive and negative changes in policy uncertainty, as well as the reliability in macroeconomic activities such as unemployment, infrastructure development, and foreign direct investment inflows. The empirical evidence revealed short- and long-run relationship involving policy uncertainty with unemployment, infrastructure development, and foreign direct investment inflows. In particular, policy uncertainty positively affected macroeconomic activities that led to unemployment, infrastructural development and pessimistic foreign investors. Dynamic relationship seems to exists between policy uncertainty and macroeconomic activities in Nigeria. Risk-taking decisions had resulted in high unemployment rate, poor infrastructural development, and low foreign direct investment inflows.JEL classification: E24, D81, C22
Heteroscedastic Process: A M-quantile Approach
Authors: Patrocinio Patrick Ferreira , Reisen Valderio A. , Bondon Pascal , Monte Edson Z. , Danilevicz Ian M. 
Published: July 2022

Abstract
As is well known, outliers are quite common observations in different application areas and these types of data can cause large biases in the estimates of the mean, variance, correlation and, consequently, in the parameter estimates. Thus, robust estimation methods are needed to obtain reliable statistical models. There are empirical evidence that the financial time series and the distributions of returns are not well approximated by Gaussian models, which is an assumption generally considered to model these data. Therefore, both quantile and M-regression methods have been suggested to estimate GARCH model. In this paper, these two methodologies are combined to obtain a robust estimator for conditional volatility. Empirical evidence indicates that the proposed method seems to be more resistant to additive outliers than the M- and Quantile regressor estimators. Some technical issues are addressed, and an application illustrates the usefulness of the method in a real data set.
Spatial distribution, potential sources, and health risk of polycyclic aromatic hydrocarbons (PAHs) in the surface soils of Shanxi Province, north China
Authors: Ji Li , Li Wenwen , Li Yuan , He Qiusheng , Bi Yonghong , Zhang Minghua , Zhang Guixiang , Wang Xinming 
Published: July 2022

Abstract
Polycyclic aromatic hydrocarbons (PAHs) are widespread in the environment and pose serious threat to the soil ecosystem. In order to better understand the health risks of resident exposed to by PAHs-contaminated soil, 173 surface soil samples were collected in Shanxi Province, China, to detect the levels of 16 priority PAHs. The spatial distribution patterns of PAHs were explored using interpolation and spatial clustering analysis, and the probable sources of soil PAHs were identified for different land-use covers. The results indicate that the soil Σ16 PAH concentration to range from 22.12 to 1337.82 ng g− 1, with a mean of 224.21 ng g− 1. The soils were weakly to moderately contaminated by high molecular weight PAHs (3–5 ring) and the Taiyuan-Linfen Basin was the most polluted areas. In addition, the concentration of soil PAHs on construction land was higher than that on other land-use covers. Key sources of soil PAHs were related to industrial activities dominated by coal burning, coking, and heavy traffic. Based on the exposure risk assessment of PAHs, more than 10% of the area was revealed to be likely to suffer from high child carcinogenic risks. The study maps the high-risk distribution of soil PAHs in Shanxi Province and provides PAH-pollution reduction strategies for policy-makers to prevent adverse health risks to residents.
Comparison of automated segmentation techniques for magnetic resonance images of the prostate
Authors: Isaksson Lars Johannes , Pepa Matteo , Summers Paul , Zaffaroni Mattia , Vincini Maria Giulia , Corrao Giulia , Mazzola Giovanni Carlo , Rotondi Marco , Presti Giuliana Lo , Raimondi Sara , Mistretta Sara , Luzzago Stefano , Cattani Federica , Musi Gennaro , De Cobelli Ottavio , Cremonesi Marta , Orecchia Roberto , Marvaso Giulia , Petralia Giuseppe , Jereczek-Fossa Barbara Alicja 
Published: July 2022

Abstract
Background: The contouring of anatomical regions is a crucial step in the medical workflow and is both time-consuming and prone to intra- and inter-observer variability. This study compares different strategies for automatic segmentation of the prostate in T2-weighted MRIs.Methods: This study included 100 patients diagnosed with prostate adenocarcinoma who had undergone multi-parametric MRI and prostatectomy. From the T2-weighted MR images, ground truth segmentation masks were established by consensus from two expert radiologists. The prostate was then automatically contoured with six different methods: (1) an ad-hoc multi atlas-based algorithm, (2) a commercial package named SyngoVia, and four deep learning models: (3) a U-net deep learning architecture trained from scratch, (4) a U-net with a pre-trained encoder, (5) a GAN extension of the network in point 4, and (6) a segmentation-adapted modification of Google Brain’s EfficientDet architecture. The resulting segmentations were compared and scored against the ground truth masks with one 50/50 and one 70/30 train/test data split.Results: The best performing method was the adapted EfficientDet (model 6), achieving a mean Dice coefficient of 0.914, a mean absolute volume difference of 5.9%, a mean surface distance (MSD) of 1.93 pixels, and a mean 95th percentile Hausdorff distance of 3.77 pixels. The deep learning-based models were more reliable in terms of worst-case performance (0.854 minimum Dice and 4.02 maximum MSD), and no significant relationship was found between segmentation performance and clinical variables.Conclusion: Deep learning-based segmentation techniques can consistently achieve Dice coefficients of 0.9 or above with as few as 50 training patients, regardless of architectural archetype. Our atlas-based method and commercial software performed significantly worse (0.855-0.887 Dice).
Vibration loading of a feller-buncher machine operator in the process of skidding a bunch of trees
Authors: Александров В.А. , Александров А.В. , Бучников А.А. 
Published: July 2022

Разработана динамическая модель системы «Оператор – ВПМ – предмет труда – дерево». Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Система уравнений решена относительно упругой деформации спинки сидения оператора методом Рунге–Кутта, с помощью среды программирования MathCAD. Апробация модели осуществлена на примере серийно выпускаемых валочно-пакетирующих машин ЛП-19А.
A dynamic model of the system «operator – feller – buncher machine – object of labor – tree» has been developed. The mathematical description is in the form of the Lagrange equation of the second kind. The system of equations is solved for the elastic deformation of the operator's seat back by the Runge–Kutta method, using the MathCAD programming environment. Approbation of the model was carried out on the example of commercially available feller-bunchers machines LP-19А.
A model for $F_L$ structure function at low values of $Q^2$ and $x$ - revisited
Authors: Badelek Barbara , Stasto Anna 
Published: July 2022

A reanalysis of the model for the longitudinal structure function
F_L (x,Q^2)FL(x,Q2)
at low xx
and low Q^2Q2
was undertaken, in view of the advent of the EIC. The model includes the
kinematic constraint F_L\sim Q^4FL∼Q4
as Q^2\rightarrowQ2→
0. It is based on the photon-gluon fusion mechanism suitably
extrapolated to the region of low Q^2Q2.
Revised model was critically updated, extended to the EIC kinematic
region, and e.g. contains new parameterisations of the parton
distribution functions.
Modelling the benefits of urine source separation scenarios on wastewater treatment plants within an urban water basin
Authors: Matar Gerald , Besson Mathilde , Mas Jennifer , Azimi Sam , Rocher Vincent , Sperandio Mathieu 
Published: July 2022

Abstract
Stringent discharge regulations are encouraging researchers to create innovative and sustainable wastewater treatment solutions. Urine source separation (USS) is among the potent approaches that may reduce nutrient peak loads in the influent wastewater and improve nutrient recovery. A phenomenological model was used to simulate dynamic influent properties and predict the advantages gained from implementing USS in an urban water basin. Several scenarios were investigated assuming different levels of deployment: at the entire city, or specifically in office buildings for men's urine only, or for both men and women employees. The results confirmed that all scenarios of urine source separation offered benefits at the treatment plant in terms of reducing nitrogen influent load. The economic benefits in terms of reducing energy consumption for nitrification and decreasing methanol addition for denitrification were quantified, and results confirmed environmental advantages gained from different USS scenarios. Despite larger advantages gained from a global USS rate in an entire city, implementation of a specific USS in office buildings would remain more feasible from a logistical perspective. A significant benefit in terms of reducing greenhouse gas emissions is demonstrated and this was especially due to the high level of N2O emissions avoided in nitrifying biological aerated filter.
MUATAN NILAI KARAKTER DALAM CERITA RAKYAT KIAI PACET DAN RARA KEMBANG SORE
Authors: Mulyaningtyas Rahmawati , Etikasari Dian 
Published: July 2022

<p><strong>The Content of Character Values in the Folklore of Kiai Pacet and Rara Kembang Sore. </strong>The purposes of this research are a) to describe the character values in the folklore of Kiai Pacet and Rara Kembang Sore and b) to describe the function of character values in the folklore. This research uses a qualitative approach with content analysis research methods. The source of data in this research is the text of the Tulungagung folklore (Kiai Pacet and Rara Kembang Sore) contained in the East Java Folklore anthology published by the East Java Language Center in 2011. The data for this research are narratives and dialogues from two folklore texts. The results show that the values contained in the folklore of Kiai Pacet and Rara Kembang Sore are religiousness, honesty, tolerance, creativity, curiousity, appreciation of achievement, love of peace, responsibility, and social care. The function of character values in the two folklores are the shaping and developing the potentials, improvements and strengthening, and filtering functions.</p>
Effect of a Reminder System on Pre-exposure Prophylaxis Adherence in Men Who Have Sex With Men: Prospective Cohort Study Based on WeChat Intervention
Authors: Lin Bing , Liu Jiaxiu , He Wei , Pan Haiying , Ma Yingjie , Zhong Xiaoni 
Published: July 2022

Background
The efficacy of pre-exposure prophylaxis (PrEP) is highly dependent on adherence, and one of the main reasons for poor adherence is forgetfulness. Therefore, it is important to explore how to remind users to take their medicine on time.

Objective
This study aims to explore the effect of a reminder system on PrEP adherence in men who have sex with men (MSM) to improve adherence. The main function of the reminder system based on the WeChat social media app is to send daily messages to PrEP users reminding them to take their medicine.

Methods
An open-label, multicenter, prospective cohort study of PrEP in HIV-negative MSM was conducted from November 2019 to June 2021. Study participants who met the criteria were randomly divided into 2 groups: no-reminder group and reminder group. Both groups received daily oral PrEP with follow-up every 3 months. Adherence was measured on the basis of self-report and was defined as the percentage of medications taken on time. Participants in the reminder group scanned a WeChat QR code and received a reminder message every day. Participants in the no-reminder group took daily oral medicines without reminders. The longitudinal trajectories of adherence for both groups were displayed to compare the variability in adherence at each time point. The association between the changes in adherence (no change, improvement, decline) at each time point and the use of the reminder system was analyzed by multinomial logistic regression models to further explore the effectiveness of the system.

Results
A total of 716 MSM were included in the analysis, that is, 372 MSM in the no-reminder group and 344 MSM in the reminder group. Adherence in the no-reminder group fluctuated between 0.75 and 0.80 and that in the reminder group gradually increased over time from 0.76 to 0.88. Adherence at each time point was not statistically different between the 2 groups. Further analysis showed that an improvement in adherence in the early stage was associated with the use of the reminder system (odds ratio [OR] 1.65, 95% CI 1.01-2.70; P=.04). An improvement in average adherence compared to initial adherence was positively associated with the use of the reminder system (OR 1.82, 95% CI 1.10-3.01; P=.02).

Conclusions
The effect of the reminder system on PrEP adherence in MSM was more significant in the early stage, which is related to the increased motivation of users and the development of medicine-taking habits. The reminder system is potentially effective for early-stage medicine management, encouraging users to develop healthy medicine-taking habits and to increase their adherence.

Trial Registration
Chinese Clinical Trial ChiCTR190026414; http://www.chictr.org.cn/showproj.aspx?proj=35077
USE OF BISPECTRAL INDEX (BIS) FOR MONITORING OF SEDATION AND TOTAL INTRAVENOUS ANESTHESIA (TIVA) IN PEDIATRIC PATIENTS UNDERGOING COLONOSCOPY
Authors: Budić Ivana , Djuric Zlatko , Marjanovic Vesna , Djordjevic Ivona , Stevic Marija , Simic Dusica 
Published: July 2022

The objectives of this study were to determine whether there was a correlation between bispectral index (BIS) and Ramsey Sedation Scale (RSS) in regard to the type of sedation and total intravenous anesthesia (TIVA) during colonoscopy procedures in children, and to assess the utility of ketamine and propofol combination (ketofol) for this kind of procedures at children’s age. In our prospective study, 40 ASA I-II patients, 3 to 17 years of age, were randomly divided into two groups of 20 patients each. After premedication with atropine and midazolam, sedation was induced with propofol and fentanyl in Group PF, whereas in Group PK propofol and ketamine were used for induction. Both groups were further divided into two subgroups depending on whether anesthesia was maintained with intermittent doses or continuous infusion of propofol. Ketamine and/or fentanyl were administered as bolus doses. Heart rate (HR), peripheral oxygen saturation (SpO2), RSS and BIS values of all patients were recorded every 5 minutes throughout the colonoscopy procedures. The strongest degree of correlation between RSS and BIS existed when sedation or TIVA was maintained by the boluses of propofol and fentanyl. The use of ketamine significantly reduced the doses of propofol and fentanyl. BIS can be monitored in all pediatric patients in whom sedation and TIVA are administered during colonoscopy, but the effect of different anesthetics on the EEG signal should be considered in order to adequately assess the depth of sedation and anesthesia.Key words: awareness, monitoring, child, anesthetics, endoscopy
Las percepciones del consumidor sobre la responsabilidad social empresarial en el sector bancario: análisis por género
Authors: Otero Gómez María Cristina , Giraldo Pérez Wilson 
Published: July 2022

Objetivo: conocer, a partir de las diferencias por género, las percepciones que tienen los consumidores en relación con las prácticas de responsabilidad social adelantadas por algunos bancos que operan en Colombia. Método: Se ha desarrollado un estudio cuantitativo que analiza una muestra por conveniencia de 588 cuentahabientes. Resultados: En términos generales, ambos géneros están de acuerdo en que los bancos deben mantener una posición competitiva fuerte, siempre y cuando contribuyan al crecimiento económico del país. Discusiones: la literatura científica y empresarial revela un creciente interés por ahondar en el impacto de la responsabilidad social empresarial. La conceptualización general refiere que las empresas deben cumplir no solamente con los objetivos económicos sino con los legales, ambientales, éticos y filantrópicos. Conclusiones: Se concluye que los hombres perciben de mejor manera el comportamiento ético del banco y que las mujeres otorgan una percepción más favorable al cumplimiento de los aspectos legales por parte de la entidad financiera.
Review / Reseña: Unsetting Colonialisms. Gender and Race in the Nineteenth-Century Global Hispanic World. Edited by N. Michelle Murray and Akiko Tsuchiya. 2019
Authors: Cucurella Paula 
Published: July 2022

This collection of nine essays examines the intersections of gender and race in the cultural productions of the nineteenth century as they relate to Spanish imperialism, including texts on Equatorial Guinea, the Philippines, Cuba, Spain, and Spanish colonies in general. Topics studied are: women’s mobility through migration, trafficking, and colonial resettlement, slavery, silenced woman writers and historical agents, transatlantic sexual commerce, prostitution, construction of race in literary works, Spanish and Catalan popular theater, blackface, masculinity and able-bodiedness, disability, and colonies used for penal purposes. For contemporary readers of nineteenth-century Spanish literature and those whose main interest is postcolonial studies the perspectives offered by these essays work together to expand the discourse away from conventional approaches to peninsular studies by highlighting neglected and often concealed narratives, subjects, and experiences. Esta colección de nueve ensayos examina las intersecciones entre género y raza en las producciones culturales del siglo diecinueve en relación con el imperialismo español e incluye textos sobre Guinea Ecuatorial, las Filipinas, Cuba, España y las colonias españolas en general. Los temas estudiados son: el desplazamiento de las mujeres a través de la migración, la trata y el reasentamiento colonial, la esclavitud, las escritoras y las agentes históricas silenciadas, el comercio sexual transatlántico, la prostitución, la construcción de la raza en obras literarias, el teatro popular español y catalán, blackface (uso de maquillaje oscuro por actores blancos para parecer negros y, muchas veces, así burlarse), la masculinidad y la discapacidad, las colonias utilizadas con fines penales. Para los lectores contemporáneos de la literatura española del siglo diecinueve y aquellos cuyo principal interés son los estudios poscoloniales, las perspectivas ofrecidas por estos ensayos expanden el discurso más allá de los enfoques convencionales de los estudios peninsulares al resaltar narrativas, temáticas y experiencias descuidadas y a menudo ocultadas.