bluuebunny/crossref_metadata_2025_split huggingface dataset:
Associations Between the Perceived Severity of the COVID-19 Pandemic, Cyberchondria, Depression, Anxiety, Stress, and Lockdown Experience: Cross-sectional Survey Study
Authors: Han Lei , Zhan Yanru , Li Weizi , Xu Yuqing , Xu Yan , Zhao Jinzhe 
Published: August 2021

Background
The outbreak of the COVID-19 pandemic has caused great panic among the public, with many people suffering from adverse stress reactions. To control the spread of the pandemic, governments in many countries have imposed lockdown policies. In this unique pandemic context, people can obtain information about pandemic dynamics on the internet. However, searching for health-related information on the internet frequently increases the possibility of individuals being troubled by the information that they find, and consequently, experiencing symptoms of cyberchondria.

Objective
We aimed to examine the relationships between people’s perceived severity of the COVID-19 pandemic and their depression, anxiety, and stress to explore the role of cyberchondria, which, in these relationship mechanisms, is closely related to using the internet. In addition, we also examined the moderating role of lockdown experiences.

Methods
In February 2020, a total of 486 participants were recruited through a web-based platform from areas in China with a large number of infections. We used questionnaires to measure participants’ perceived severity of the COVID-19 pandemic, to measure the severity of their cyberchondria, depression, anxiety, and stress symptoms, and to assess their lockdown experiences. Confirmatory factor analysis, exploratory factor analysis, common method bias, descriptive statistical analysis, and correlation analysis were performed, and moderated mediation models were examined.

Results
There was a positive association between perceived severity of the COVID-19 pandemic and depression (β=0.36, t=8.51, P<.001), anxiety (β=0.41, t=9.84, P<.001), and stress (β=0.46, t=11.45, P<.001), which were mediated by cyberchondria (β=0.36, t=8.59, P<.001). The direct effects of perceived severity of the COVID-19 pandemic on anxiety (β=0.07, t=2.01, P=.045) and stress (β=0.09, t=2.75, P=.006) and the indirect effects of cyberchondria on depression (β=0.10, t=2.59, P=.009) and anxiety (β=0.10, t=2.50, P=.01) were moderated by lockdown experience.

Conclusions
The higher the perceived severity of the COVID-19 pandemic, the more serious individuals’ symptoms of depression, anxiety, and stress. In addition, the associations were partially mediated by cyberchondria. Individuals with higher perceived severity of the COVID-19 pandemic were more likely to develop cyberchondria, which aggravated individuals’ depression, anxiety, and stress symptoms. Negative lockdown experiences exacerbated the COVID-19 pandemic’s impact on mental health.
Understanding Adolescent and Young Adult 6-Mercaptopurine Adherence and mHealth Engagement During Cancer Treatment: Protocol for Ecological Momentary Assessment
Authors: Psihogios Alexandra M , Rabbi Mashfiqui , Ahmed Annisa , McKelvey Elise R , Li Yimei , Laurenceau Jean-Philippe , Hunger Stephen P , Fleisher Linda , Pai Ahna LH , Schwartz Lisa A , Murphy Susan A , Barakat Lamia P 
Published: August 2021

Background
Adolescents and young adults (AYAs) with cancer demonstrate suboptimal oral chemotherapy adherence, increasing their risk of cancer relapse. It is unclear how everyday time-varying contextual factors (eg, mood) affect their adherence, stalling the development of personalized mobile health (mHealth) interventions. Poor engagement is also a challenge across mHealth trials; an effective adherence intervention must be engaging to promote uptake.

Objective
This protocol aims to determine the temporal associations between daily contextual factors and 6-mercaptopurine (6-MP) adherence and explore the proximal impact of various engagement strategies on ecological momentary assessment survey completion.

Methods
At the Children’s Hospital of Philadelphia, AYAs with acute lymphoblastic leukemia or lymphoma who are prescribed prolonged maintenance chemotherapy that includes daily oral 6-MP are eligible, along with their matched caregivers. Participants will use an ecological momentary assessment app called ADAPTS (Adherence Assessments and Personalized Timely Support)—a version of an open-source app that was modified for AYAs with cancer through a user-centered process—and complete surveys in bursts over 6 months. Theory-informed engagement strategies will be microrandomized to estimate the causal effects on proximal survey completion.

Results
With funding from the National Cancer Institute and institutional review board approval, of the proposed 30 AYA-caregiver dyads, 60% (18/30) have been enrolled; of the 18 enrolled, 15 (83%) have completed the study so far.

Conclusions
This protocol represents an important first step toward prescreening tailoring variables and engagement components for a just-in-time adaptive intervention designed to promote both 6-MP adherence and mHealth engagement.

International Registered Report Identifier (IRRID)
DERR1-10.2196/32789
Advanced Closed-Loop Control System Improves Postprandial Glycemic Control Compared With a Hybrid Closed-Loop System Following Unannounced Meal
Authors: Garcia-Tirado Jose , Diaz Jenny L. , Esquivel-Zuniga Rebeca , Koravi Chaitanya L.K. , Corbett John P. , Dawson Martha , Wakeman Christian , Barnett Charlotte L. , Oliveri Mary C. , Myers Helen , Krauthause Katie , Breton Marc D. , DeBoer Mark D. 
Published: August 2021

OBJECTIVE
Meals are a major hurdle to glycemic control in type 1 diabetes (T1D). Our objective was to test a fully automated closed-loop control (CLC) system in the absence of announcement of carbohydrate ingestion among adolescents with T1D, who are known to commonly omit meal announcement.

RESEARCH DESIGN AND METHODS
Eighteen adolescents with T1D (age 15.6 ± 1.7 years; HbA1c 7.4 ± 1.5%; 9 females/9 males) participated in a randomized crossover clinical trial comparing our legacy hybrid CLC system (Unified Safety System Virginia [USS]-Virginia) with a novel fully automated CLC system (RocketAP) during two 46-h supervised admissions (each with one announced and one unannounced dinner), following 2 weeks of data collection. Primary outcome was the percentage time-in-range 70–180 mg/dL (TIR) following the unannounced meal, with secondary outcomes related to additional continuous glucose monitoring-based metrics.

RESULTS
Both TIR and time-in-tight-range 70–140 mg/dL (TTR) were significantly higher using RocketAP than using USS-Virginia during the 6 h following the unannounced meal (83% [interquartile range 64–93] vs. 53% [40–71]; P = 0.004 and 49% [41–59] vs. 27% [22–36]; P = 0.002, respectively), primarily driven by reduced time-above-range (TAR &gt;180 mg/dL: 17% [1.3–34] vs. 47% [28–60]), with no increase in time-below-range (TBR &lt;70 mg/dL: 0% median for both). RocketAP also improved control following the announced meal (mean difference TBR: −0.7%, TIR: +7%, TTR: +6%), overall (TIR: +5%, TAR: −5%, TTR: +8%), and overnight (TIR: +7%, TTR: +19%, TAR: −5%). RocketAP delivered less insulin overall (78 ± 23 units vs. 85 ± 20 units, P = 0.01).

CONCLUSIONS
A new fully automated CLC system with automatic prandial dosing was proven to be safe and feasible and outperformed our legacy USS-Virginia in an adolescent population with and without meal announcement.
Inusual presentación de Goodpasture, síndrome antifosfolípido y vasculitis ANCA positivo: Reporte de caso
Authors: Perdomo Teran Luis Manuel , Tatá Perdomo María , Toro Paredes Eduardo 
Published: August 2021

-El síndrome de Goodpasture es una vasculitis poco frecuente y con alta mortalidad, que puede afectar tanto a capilares glomerulares como alveolares, en presencia de anticuerpos anti-MBG. Se presenta el caso de un paciente masculino de 51 años, que al examen físico se observó temperatura corporal de 39°C, disnea, crepitantes pulmonares y edema de miembros inferiores. Se solicitaron exámenes de laboratorio reportando anemia, proteinuria, hematuria,leucocituria y cilindruria. Al examen serológico, se presentó positividad para anticuerpos anti-MBG, ANCA, antifosfolípidos. Biopsia renal con cambios mesangiales, incremento difuso de matriz, fibrosis intersticial y atrofia multifocal de túbulos, más capilaritis en biopsia pulmonar. El paciente fue diagnosticado con síndrome de Goodpasture, asociado a síndrome Antifosfolípido y vasculitis ANCA. Los anticuerpos antifosfolípidos complican el pronóstico del síndrome de Goodpasture al causar trastornos trombofílicos. Por consiguiente, se inició el tratamiento con metilprednisolona, ciclofosfamida y tratamiento de mantenimiento con micofenolato mofetil + ácido acetilsalicílico, logrando revertir la curva de mortalidad y alcanzando remisión completa de la enfermedad.
-Palabras clave: Enfermedad por Anticuerpos Antimembrana Basal Glomerular, Glomerulonefritis, Vasculitis, Síndrome Antifosfolípido.
FACTORES PSICOSOCIALES ASOCIADOS AL SÍNDROME DE INTESTINO IRRITABLE EN ESTUDIANTES DE MEDICINA
Authors: Giménez Gómez Osmar Nicolás , Huang Liao Shirley Michelle 
Published: August 2021

Objetivo general: Exponer la relación entre el Síndrome de Intestino Irritable y los factores psicosociales en estudiantes de Medicina.
Objetivos específicos: Establecer a través de los criterios Roma IV la proporción de estudiantes de Medicina con Síndrome de Intestino Irritable. Evaluar la de ansiedad y depresión mediante la escala de “Hospital Anxiety and Depression Scale” (HADS). Identificar la edad, sexo y curso de la muestra.
Materiales y métodos: estudio observacional, transversal con componente analítico llevado a cabo mediante encuestas, previo consentimiento informado a estudiantes de Medicina del primer al quinto curso de la facultad de Medicina de la Universidad Nacional de Itapúa.
Resultados: Población estudiada (n=160), la proporción de estudiantes con Sindrome de Intestino Irritable (SII) de acuerdo a los criterios Roma IV fue del 23,75% (n=38) y de estos, el 79% fueron mujeres y 21% hombres. La edad media fue de 22,8 +/- 1,92. En relación al subtipo de SII, el más frecuente fue con estreñimiento, correspondiente al 42%. Con respecto a los estudiantes con SII, la prevalencia de ansiedad fue de 71% (n=27) y depresión del 50% (n=19).
Conclusión: Se observó una asociación significativa del síndrome de intestino irritable, con trastornos de ansiedad y depresión. Es importante no ignorar su diagnóstico, debido a las posibles repercusiones negativas en el estudiante de Medicina con el fin de mejorar la calidad de vida de los mismos.
Evaluation of Country Bean Germplasm Collected from Patuakhali Region
Authors: Ratna M. , Kayum Md. Abdul , Ali Mohammad Zulficar 
Published: August 2021

Abstract
The experiment was conducted at Regional Horticulture Research Station, Lebukhali, Patuakhali and were evaluated the genotypic performance like yield and yield traits of seventeen (17) country bean genotypes collected from Patuakhali region. In this area, country bean yield is very low, that why we need to identify high yielding country bean genotypes in Patuakhali region. The experiment was laid out in an augmented block design. Seventeen country bean lines viz., LPPK001 to LPPK017 and four check variety viz., BARI Sheem-1, 6, 7 and IPSA Sheem-2 were used for this trial. A lot of variability was observed such as plant height, pod length, pod breadth, pod weight, No. of pod plant−1, yield plant−1, 100 seed weight and yield. The pod length ranged from 20.4-7.62 cm, pod breadth range from 4.83-1.41 cm and pod weight ranged from 13.28-5.08g. The longest pod (20.4 cm), maximum pod breadth (4.83cm) and the premier pod weight (13.28 gm) were found in BARI Sheem 6, LPPK012 and LPPK002 respectively. The highest yield (18.73 t/ha) obtained from the line LPPK016 and minimum in the line LPPK 003 (5.43 t/ha). Among the 17 tested lines and 4 checks; 15 were green in colour, and IPSA Sheem 2 was light green, LPPK011 was purple green and LPPK001 and LPPK014 were creamy- white in colour. The wide variations in phenotypic level among the genotypes LPPK001, LPPK005, LPPK015, LPPK016, and BARI Sheem 7 can be potentially used for more production in Patuakhali region, ultimately it will increase the farmers’ incomes level.
Analytical Model of an I-core Coil for Nondestructive Evaluation of a Conducting Cylinder below an Infinite Plane Conductor
Authors: Zhang Siquan 
Published: August 2021

Abstract
An analytical model for eddy current testing of an I-core coil located above a two-layer conductive material is presented. The upper layer is an infinite plane conductor, and the bottom layer is a conductive cylinder. The method of truncated region eigenfunction expansion (TREE) is used to solve this axisymmetric problem. First the magnetic vector potential of a filamentary coil coaxial with the I-core over the two-layer conductor is considered. Then the closed form expression for the impedance of the multi-turn coil with rectangular cross section is derived by using the principle of superposition from the filamentary coil field. For frequencies ranging from 0.1 kHz to 10 kHz, both the impedance changes of the I-core coil located above the infinite plane conductor without the conducting cylinder, and in the absence of the two-layer conductor are calculated using Mathematica, respectively. The influence of the conducting cylinder below the infinite plane conductor on the impedance change is analyzed. The analytical calculation results are verified by the finite element method and experiment, the results agree very well, which verifies the correctness of the analytical model.
True Cause for Multi-Layer Inductive Coils’ Sensitivity to Ambient Relative Humidity
Authors: Liu Ling-Xiang , Qian Zhong-Tai 
Published: August 2021

Abstract
For analyzing the properties of humidity-effect on the measurement of the inductance of multi-layer coils, a formula that establishes an approximate relationship between the coil’s inherent capacitance and interlayer parasitic capacitance has been derived. Such a derivation using the inductor’s equivalent circuit to include humidity effects clarifies the characterization of inductance, after more than half a century of neglect in the literature.
Adaptability in Environmental Policy at the Commune Level Carried Out in Poland Based on the Example of the Urban Plan of Adaptation to Climate Changes
Authors: Lisowska Alicja , Tiukało Andrzej 
Published: August 2021

Abstract
The effects of the observed climate changes constitute a real problem in the surrounding environment due to the scale and frequency of natural catastrophic events. This state of affairs prompts various types of entities, including institutions, to undertake adaptation measures as part of environmental policy, both at the international and local levels. In Poland, the entities responsible for the implementation of this policy at the local level are, inter alia, the voivodeship, the poviat and the commune authorities. The authors present the Urban Adaptation Plans (MPA for short) prepared in 44 Polish cities, which can be an example of a document where the main goal is to increase the adaptability of cities to a changing climate.
On the basis of the identified list of types of adaptation measures provided for in all prepared Urban Adaptation Plans, the pragmatic nature of the implemented adaptation measures has been demonstrated, which will not cause any changes to basic attributes of the social and ecological system of cities. Thus, 44 cities in Poland will manage the process of gradual adaptation up to 2024, i.e., until when the Urban Adaptation Plans will require updating.
International Political Authority: On the Meaning and Scope of a Justified Hierarchy in International Relations (Voelsen & Schettler, 2019)
Authors: Sybikowska Bogdana 
Published: August 2021

Abstract
This article is a review of a paper titled International political authority: on the meaning and scope of a justified hierarchy in international relations written by Daniel Voelsen and Leon Schettler. The growing power and authority of international organizations has been perceived by many as a sign of a new global order where the concept of sovereignty of the state is replaced with the constitutional principles of democracy, human rights and the rule of law. Recently, a tendency has been observed to consider international organizations as autonomous, legitimate institutions possessing political authority. However, it is rather challenging to find one and the complex understanding of political authority that encompasses all components that construct it. Voelsen and Schettler offer a detailed analysis of the concepts of international authority that are present in the literature and even criticize them. In this article, the conducted research is reviewed and scrutinized in detail.
Application of Multivariate Time Series Cluster Analysis to Regional Socioeconomic Indicators of Municipalities
Authors: Gružauskas Valentas , Čalnerytė Dalia , Fyleris Tautvydas , Kriščiūnas Andrius 
Published: August 2021

Abstract
The socio-economic development of municipalities is defined by a set of indicators in a period of interest and can be analyzed as a multivariate time series. It is important to know which municipalities have similar socio-economic development trends when recommendations for policy makers are provided or datasets for real estate and insurance price evaluations are expanded. Usually, key indicators are derived from expert experience, however this publication implements a statistical approach to identify key trends. Unsupervised machine learning was performed by employing K-means clusterization and principal component analysis for a dataset of multivariate time series. After 100 runs, the result with minimal summing error was analyzed as the final clusterization. The dataset represented various socio-economic indicators in municipalities of Lithuania in the period from 2006 to 2018. The significant differences were noticed for the indicators of municipalities in the cluster which contained the 4 largest cities of Lithuania, and another one containing 3 districts of the 3 largest cities. A robust approach is proposed in this article, when identifying socio-economic differences between regions where real estate is allocated. For example, the evaluated distance matrix can be used for adjustment coefficients when applying the comparative method for real estate valuation.
Hindrance and Benefits to Green Building Implementation: Evidence from Benin City, Nigeria
Authors: Alohan Ernest O. , Oyetunji Abiodun Kolawole 
Published: August 2021

Abstract
The clamor for sustainable development and reduction of greenhouse gases led to the green concept which, in recent times, has gained significant momentum. To encourage the widespread development of green buildings, an understanding of the awareness, benefits, and hindrances for their adoption is necessary.
This is relevant now that concerns over climate change have led to an increasing global demand for sustainability within the built environment. While the discourse is still rather muted in Nigeria, this study will contribute to the ongoing effort to raise public awareness regarding green building development and the potential benefits by evaluating the opinion of professionals regarding the subject matter.
Structured questionnaires were distributed among five different professions in the built environment and information sourced includes the level/mode of awareness, benefits and bottleneck, and support for its development.
The survey results showed that 43.48% of the professionals advocated for the development of green construction in Nigeria. The benefits and bottlenecks were ranked according to their perceived importance. The study recommends public enlightenment on green education, enforcement of mandatory training, formulation and implementation of policies directed towards green building acceptability. This will help promote and protect the built environment, and reduce health hazards posed by conventional development.
Endoscope-assisted microsurgical retrosigmoid approach to the lateral posterior fossa: Cadaveric model and a review of literature
Authors: Fouda Mohammed A. , Jeelani Yasser , Gokoglu Abdulkarim , Iyer Rajiv R. , Cohen Alan R. 
Published: August 2021

Background:
The advancement of endoscopic techniques in the past decade has improved the surgical management of cerebellopontine angle (CPA) tumors. Endoscope-assisted microsurgery improves the ability to evaluate the extent of resection, achieve safe tumor resection and reduce the risk of surgery-related morbidity.

Methods:
In this study, we used a cadaveric model to demonstrate a step by step endoscope-assisted microsurgery of the retrosigmoid approach to the lateral posterior fossa.

Results:
Retrosigmoid craniotomies were performed on four latex-injected cadaver heads (eight CPAs). Microsurgical exposures were performed to identify neurovascular structures in each segment. 0° and 30° rigid endoscope lenses were subsequently introduced into each corridor and views were compared in this manner. The endoscopic images were compared with the standard microscopic views to determine the degree of visualization with each technique. In each case, better visualization was provided by both the 0° and 30° endoscope lenses. Endoscopic views frequently clarified neurovascular relationships in obscured anatomic regions.

Conclusion:
Endoscope-assisted microsurgery could allow better visualization of various regions of the posterior fossa. Surgical planning for posterior fossa lesions should include consideration of this combined approach.
Comparison of Surgical Methods in Sacrococcygeal Pilonidal Sinus Treatment
Authors: ÇANTAY Hasan , DAŞDEMİR Yavuz 
Published: August 2021

Purpose: Although many conservative and surgical methods have been described in the treatment of sacrococcygeal pilonidal sinus, which is a common disease of the sacrococcygeal region, affecting especially young men, recurrence rates are still high and the search for ideal treatment continues. The aim of the study is to compare the primary closure, Limberg and Karydakis flap methods for pilonidal sinus surgery in terms of wound healing, complications and recurrence and to present the results accordingly.
Material and method: The data of 184 patients who were operated between 2018 and 2020 were retrospectively evaluated. Patient data on age, gender, comorbidity, Body Mass Index (BMI), smoking, recurrence, history of preoperative abscess drainage, surgical methods, length of hospital stay, postoperative drain, recurrence and complications were evaluated.
Results: No statistically significant difference was found between the treatment methods in terms of age, gender, Body Mass Index, and smoking (p>0.005). A statistically significant difference was found between the treatment methods in terms of reoperation for recurrence and preoperative abscess drainage (p = 0.012) (p = 0.044). However, a significant difference was found between the treatment methods in terms of length of hospital stay, presence of drainage, recurrence and complications (p