bluuebunny/crossref_metadata_2025_split huggingface dataset:
Direction-of-arrival and power spectral density estimation using a single directional microphone and group-sparse optimization
Authors: Tengan Elisa , Dietzen Thomas , Elvander Filip , van Waterschoot Toon 
Published: October 2023

AbstractIn this paper, two approaches are proposed for estimating the direction of arrival (DOA) and power spectral density (PSD) of stationary point sources by using a single, rotating, directional microphone. These approaches are based on a method previously presented by the authors, in which point source DOAs were estimated by using a broadband signal model and solving a group-sparse optimization problem, where the number of observations made by the rotating directional microphone can be lower than the number of candidate DOAs in an angular grid. The DOA estimation is followed by the estimation of the sources’ PSDs through the solution of an overdetermined least squares problem. The first approach proposed in this paper includes the use of an additional nonnegativity constraint on the residual noise term when solving the group-sparse optimization problem and is referred to as the Group Lasso Least Squares (GL-LS) approach. The second proposed approach, in addition to the new nonnegativity constraint, employs a narrowband signal model when building the linear system of equations used for formulating the group-sparse optimization problem, where the DOAs and PSDs can be jointly estimated by iterative, group-wise reweighting. This is referred to as the Group-Lasso with$$l_1$$l1-reweighting (GL-L1) approach. Both proposed approaches are implemented using the alternating direction method of multipliers (ADMM), and their performance is evaluated through simulations in which different setup conditions are considered, ranging from different types of model mismatch to variations in the acoustic scene and microphone directivity pattern. The results obtained show that in a scenario involving a microphone response mismatch between observed data and the signal model used, having the additional nonnegativity constraint on the residual noise can improve the DOA estimation for the case of GL-LS and the PSD estimation for the case of GL-L1. Moreover, the GL-L1 approach can present an advantage over GL-LS in terms of DOA estimation performance in scenarios with low SNR or where multiple sources are closely located to each other. Finally, it is shown that having the least squares PSD re-estimation step is beneficial in most scenarios, such that GL-LS outperformed GL-L1 in terms of PSD estimation errors.
Orbital inflammatory pseudotumor: new advances in diagnosis, pathogenesis, and treatment
Authors: Fang Yenan , Shen Bingyan , Dai Qin , Xie Qiqi , Wu Wencan , Wang Min 
Published: October 2023

AbstractOrbital inflammatory pseudotumor (OIP) is a benign, non-specific inflammatory disorder that commonly occurs in middle-aged adults and is usually unilateral but can occur bilaterally. Its clinical manifestations have tremendous clinical heterogeneity and vary according to the site of infiltration and the degree of lesions, including orbital pain, swelling, diplopia, proptosis, restricted eye movement, and decreased visual acuity. Clinical features, Image characteristics and pathological examinations often need to be evaluated to confirm the diagnosis. Currently, there is no systematic research on the pathogenesis of OIP, which may be related to immunity or infection. The first-line treatment is glucocorticoids. Radiotherapy, immunosuppressants, and biologics can be considered for treatment-resistant, hormone-dependent, or intolerant patients. In this review, we aim to summarize and focus on new insights into OIP, including new diagnostic criteria, pathogenesis, and discoveries in new drugs and treatment strategies. In particular, we highlight the literature and find that T cell-mediated immune responses are closely related to the pathogenesis of OIP. Further exploration of the mechanism and signaling pathway of T cells in the immune process will help to identify their therapeutic targets and carry out targeted therapy to treat refractory OIP and reduce the side effects of traditional treatments.
China Trends in Physical Inactivity from 2013 to 2019: An Analysis of 4.23 Million Participants
Authors: TU WEN-JUN , SUN HUAXIA , YAN FENG , FAN YANGYI , YI ZHIQIANG , LI JI-LAI , ZENG XIANWEI 
Published: October 2023

ABSTRACT

Introduction
This study aimed to evaluate recent trends in physical inactivity prevalence by sociodemographic characteristics and the province of China’s residence between 2013 and 2019.

Methods
The study included 4,229,616 participants 40 yr or older from 414 geographically defined localities in China during the 7-yr period. Self-reported total physical inactivity was collected to determine the standardized prevalence of physical inactivity. Logistic regression analysis was used to examine the association between physical inactivity and stroke risk, obtaining odds ratios (OR) and 95% confidence intervals (CI).

Results
Results showed that the standardized prevalence of physical inactivity increased from 22.12% (95% CI = 21.99%–22.45%) in 2013 to 28.79% (95% CI = 28.48%–29.19%) in 2019, with an absolute difference of 6.67% (95% CI = 6.15% to 7.16%) and a yearly increase rate of 5.03% (95% CI = 4.85% to 5.21%). In 2019, physical inactivity was higher in female and rural participants (female = 29.55%, rural = 29.46%) than in male and urban participants (male = 28.03%, urban = 28.26%). The prevalence of physical inactivity also varied by race/ethnic groups, with the highest prevalence observed among Uyghur (47.21%) and the lowest among Yizu (14.84%). Additionally, the prevalence of physical inactivity differed by province, ranging from 14.44% in Beijing to 50.09% in Tianjin in 2019. Multivariate analyses showed that physical inactivity was associated with a higher risk of stroke (OR = 1.17, 95% CI = 1.12–1.21, P < 0.001).

Conclusions
In conclusion, our study found an overall increase in physical inactivity prevalence among Chinese adults ≥40 yr old from 2013 to 2019, with significant variation across regions, sex, ages, and race/ethnic groups.
Women's experiences of induction of labour during the COVID-19 pandemic: a cross-sectional survey
Authors: Cross-Sudworth Fiona , Taylor Beck , Davidson Louisa , Quinn Laura , Wright Joselle , Vitue Ella , Kenyon Sara 
Published: October 2023

Background/Aims Induction of labour is an increasingly common intervention. This study's aim was to explore women's experiences of induction, in particular of decision making and choice. Methods A cross-sectional study was carried out with women who were induced with live, term infant(s) in two urban trusts. Their experiences were assessed using a postal survey that included the birth satisfaction scale and open questions on women's experiences. Chi-squared and Fisher's exact tests were used to test for associations between aspects of the induction process and women's characteristics (age, parity, ethnic group). Qualitative data were analysed thematically. Results Half (52.9%) of the respondents reported waiting to start induction. The majority felt sufficiently involved in decision making (62.1%) and choice (59.6%). Most reported having enough information about the reason for (82%) and process of (83%) induction. The qualitative themes were emotional response, communication, feeling unheard, quality of care and the negative impact of COVID-19 policies. Conclusions Women's overall experiences were positive. Improvements should focus on reducing delays to induction.
Antenatal care in Indonesia: a nationwide study
Authors: Ocktariyana Ocktariyana , Rohmah Ulfa Nur , Yulia Sri , Rosnani Rosnani , Mediarti Devi , Setyowati Setyowati , Afiyanti Yati , Klankhajhon Sirikanok , Arifin Hidayat 
Published: October 2023

Background/Aims Antenatal care is important for screening, monitoring and management of pregnancy risks. This study analysed determinants of antenatal care in Indonesia among women aged 18–24 years and older than 30 years, who are at greater risk of pregnancy and birth complications. Methods This cross-sectional study used secondary data from 4338 women in the 2017 Indonesian demographic health survey. Chi-square tests and binary logistic regression were used to explore the effects of individual, partner and social factors on antenatal care. Results Antenatal care attendance was associated with a younger age at first birth (adjusted odds ratio: 1.49; P<0.001), health insurance (adjusted odds ratio: 1.54; P=0.004) and the middle wealth quintile (adjusted odds ratio: 1.78; P=0.002). Conclusions Collaboration is needed to increase awareness of complications and the importance of antenatal care.
Crystal Structure and DFT Computations of a Solid-State Solution of Mixed Mononuclear Cu(II)/Co(II) Complex
Authors: Abuhmaiera Ramadan Gamodi , Treish Fathia Ali , EL-Kaheli Mohamed Nasir , Benshaban Yazeed Musa , Elmehdawi Ramadan Mohamed , Ashoor Salem El-tuhami 
Published: October 2023

<p>A<strong> </strong>novel mixed molecular Cu (II) and Co (II) complexes [Cu L<sub>2</sub>]<sub>0.82</sub> and [CoL<sub>2</sub>]<sub>0.18</sub> (1) where HL = (4-salicylaldaimine antipyrine) derived from 4-aminoantipyrine and 2-hydroxybenzaldehyde, was isolated as a green solid and characterized by Fourier Transform Infrared Spectroscopy (FTIR), Ultra-Violet Visible spectroscopy (UV-Vis) and Single-crystal x-ray diffraction. Compound 1 is a solid-state solution that contains a statistical mixture of two different molecular complexes: 82% of a 17-electron Cu (II) complex and 18% of a 15-electron Co (II) complex. By looking at the structure, it seems that the two metal ions occupy the same metal site, which is not true; at least a small distance between them exists, verified using the Density functional theory (DFT).<strong> </strong>A divalent metal cation binds four coordination sites in each molecular complex from two corresponding bidentate Schiff base ligands. Each metal atom is coordinated with two nitrogen and two oxygen atoms of the Schiff base ligand in a geometry much closer to pseudo-tetrahedral than planar. DFT calculations were used to validate the trends observed in bond lengths and angles in this structure. By using the DFT methods, it is seen that there are no significant differences in the experimental values obtained by single-crystal X-ray diffraction. It should be noted that the experimental results belong to the solid phase, while the theoretical calculations belong to the gas phase.</p>
(Non-)disclosure of lifetime sexual violence in maternity care: Disclosure rate, associated characteristics and reasons for non-disclosure
Authors: de Klerk Hannah W. , van der Pijl Marit S. G. , Jonge Ank de , Hollander Martine H. , Verhoeven Corine J. , Montgomery Elsa , Gitsels-van der Wal Janneke T. 
Published: October 2023

Background
In maternity care, disclosure of a past sexual violence (SV) experience can be helpful to clients to discuss specific intimate care needs. Little evidence is available about the disclosure rates of SV within maternity care and reasons for non-disclosure.

Aim
The aim of this study was to examine (1) the disclosure rate of SV in maternity care, (2) characteristics associated with disclosure of SV and (3) reasons for non-disclosure.

Methods
We conducted a descriptive mixed method study in the Netherlands. Data was collected through a cross-sectional online questionnaire with both multiple choice and open-ended items. We performed binary logistic regression analysis for quantitative data and a reflexive thematic analysis for qualitative data.

Results
In our sample of 1,120 respondents who reported SV, 51.9% had disclosed this to a maternity care provider. Respondents were less likely to disclose when they received obstetrician-led care for high-risk pregnancy (vs midwife-led care for low-risk pregnancy) and when they had a Surinamese or Antillean ethnic background (vs ethnic Dutch background). Reasons for non-disclosure of SV were captured in three themes: ‘My SV narrative has its place outside of my pregnancy’, ‘I will keep my SV narrative safe inside myself’, and ‘my caregiver needs to create the right environment for my SV narrative to be told’.

Conclusions
The high level of SV disclosure is likely due to the Dutch universal screening policy. However, some respondents did not disclose because of unsafe care conditions such as the presence of a third person and concerns about confidentiality. We also found that many respondents made a positive autonomous choice for non-disclosure of SV. Disclosure should therefore not be a goal in itself, but caregivers should facilitate an inviting environment where clients feel safe to disclose an SV experience if they feel it is relevant for them.
Determinants and outcomes of eHealth literacy in healthy adults: A systematic review
Authors: Milanti Ariesta , Chan Dorothy Ngo Sheung , Parut Anselmus Aristo , So Winnie Kwok Wei 
Published: October 2023

Background
eHealth has shown many benefits in health promotion and disease prevention. For engaging in and taking advantage of eHealth, eHealth literacy is essential. This systematic review aims to summarise and examine the existing evidence on determinants and outcomes of eHealth literacy in healthy adults.

Methods
We searched the relevant peer-reviewed articles published in English in six databases: MEDLINE, EMBASE, PsycINFO, CINAHL, Cochrane Library and ProQuest. The inclusion criteria of the review were: 1) studies examining ‘eHealth literacy’, which refers to the ability to search, select, judge and apply online health information to address or solve health problems and to improve wellbeing; 2) the type of study included observational and experimental studies, mixed method studies or qualitative studies; 3) the participants were healthy adults; 4) the main outcomes were the determinants (i.e. influencing or associated factors) and outcomes (i.e. benefits and disadvantages) of eHealth literacy. Articles were assessed by two reviewers using the Joanna Briggs Institute critical appraisal tool. A conceptual model to map the determinants and outcomes of eHealth literacy in healthy adults into the non-modifiable, individual, social and community networks and structural layers was developed to classify the identified determinants and outcomes.

Results
Forty-four studies were included in this review, of which 43 studies were cross-sectional and one was qualitative. eHealth literacy determinants included age, sex, literacy factors, socioeconomic factors and language. eHealth literacy outcomes included better general health promotion behavior, COVID-19 preventive behaviors, psychological wellbeing, social support, self-rated health and health service utilisation.

Conclusions
Our results showed that eHealth literacy has multi-layered determinants and positive outcomes. Different strategies at different policy levels are needed to improve the eHealth literacy levels of healthy adults.
SARS-CoV-2 infection in 3,241 School working staffs: Impact of SARS CoV-2 variants of concern [Wild, B.1.1.7 and Omicron]
Authors: Alishaq Moza , Al Ajmi Jameela Ali , Shaheen Mohammed , Elgendy Mohamed , Vinoy Suni , Thomas Anil George , Joseph Sam , Mathew Tintu Elizabeth , Joseph Renjith , Thomas Christymol , Alex Anju K. , Thomas Bincy , Nafady Asmaa , Elgendy Hamed , Nafady-Hego Hanaa 
Published: October 2023

Background
There is debate over whether physical attendance at school affects the spread of the SARS-CoV-2 pandemic.

Methods
A cohort of personnel from several schools in Qatar provided nasopharyngeal swabs (NPS) for SARS-CoV-2 RT-PCR and rapid antigen testing. Each of them was monitored for infection until February 2022.

Results
In total, 3,241 employees gave samples for analysis. Prior to the start of the 2020–2021 academic year (Group I), 3.49% of samples tested positive for SARS-CoV-2. Most of the positive PCR results were from male, senior, non-teaching staff members. Only 110 (3.39%) employees who had enrolled in face-to-face instruction before the B.1.1.7 variant’s emergence (Group II), 238 (7.34%) after the B.1.1.7 variant’s emergence (Group III), and 410 (12.65%) after the introduction of the Omicron variant (Group IV) had reported infection by PCR test. Most people who tested positive by PCR after enrolling in school were young, female teachers. In the Cox Proportional-Hazards Model, exposure to a confirmed case, the presence of symptoms in the two weeks prior to exposure in all groups—young age in Groups II and III, male gender in Groups I and IV, shared housing in Group III, and the presence of comorbidities in Groups II and III independently predicted SARS-CoV-2 infection in school staff.

Conclusion
Critical information about the risk of SARS-CoV-2 infection in school workers during the whole pandemic is provided by our study. School operations in Qatar were made safer through initial and ongoing screenings, as well as widespread vaccination of school personnel.
Error codes at autopsy to study potential biases in diagnostic error
Authors: Goldman Bruce I. , Bharadwaj Rajnish , Fuller Michelle , Love Tanzy , Metlay Leon , Dignan Caroline 
Published: October 2023

Abstract

Objectives
Current autopsy practice guidelines do not provide a mechanism to identify potential causes of diagnostic error (DE). We used our autopsy data registry to ask if gender or race were related to the frequency of diagnostic error found at autopsy.

Methods
Our autopsy reports include International Classification of Diseases (ICD) 9 or ICD 10 diagnostic codes for major diagnoses as well as codes that identify types of error. From 2012 to mid-2015 only 2 codes were used: UNDOC (major undocumented diagnoses) and UNCON (major unconfirmed diagnoses). Major diagnoses contributed to death or would have been treated if known. Since mid-2015, codes included specific diagnoses, i.e. undiagnosed or unconfirmed myocardial infarction, infection, pulmonary thromboembolism, malignancy, or other diagnosis as well as cause of death. Adult autopsy cases from 2012 to 2019 were assessed for DE associated with reported sex or race (nonwhite or white). 528 cases were evaluated between 2012 and 2015 and 699 between 2015 and 2019.

Results
Major DEs were identified at autopsy in 65.9 % of cases from 2012 to 2015 and in 72.1 % from 2015 to 2019. From 2012 to 2015, female autopsy cases showed a greater frequency in 4 parameters of DE, i.e., in the total number of cases with any error (p=0.0001), in the number of cases with UNDOC errors (p=0.0038) or UNCON errors (p=0.0006), and in the relative proportions of total numbers of errors (p=0.0001). From 2015 to 2019 undocumented malignancy was greater among males (p=0.0065); no other sex-related error was identified. In the same period some DE parameters were greater among nonwhite than among white subjects, including unconfirmed cause of death (p=0.035), and proportion of total error diagnoses (p=0.0003), UNCON diagnoses (p=0.0093), and UNDOC diagnoses (p=0.035).

Conclusions
Coding for DE at autopsy can identify potential effects of biases on diagnostic error.
Asynchrone Lernpfade in der Lehrkräftebildung Deutsch als Zweitsprache
Authors: Drumm Sandra 
Published: October 2023

Zusammenfassung
Während der Covid-19-Pandemie bestand die Herausforderung, Inhalte des DaZ-Moduls online und asynchron an die heterogene Studierendenschaft zu vermitteln. Aus diesem Grund mussten Lernumgebungen entwickelt werden, die es den Studierenden ermöglichten, selbstständig zu lernen, und zwar auf eine Art und Weise, die auch das Engagement und damit ein vertieftes Lernen fördert. Lernpfade (LPs), eine Kombination aus internetbasierten, sequenzierten Lerninhalten und Selbstlernaufgaben, ermöglichen das Lernen nach individuellem Tempo und individueller Tiefe und bieten automatisierte Tests zur Überprüfung des eigenen Lernprozesses. Es zeigt sich jedoch, dass unterschiedliche Studierende bei der selbstständigen Arbeit mit digitalen Lernpfaden unterschiedlich erfolgreich sind. Daraus ergeben sich folgende Fragen: Wie setzen sich die Studierenden mit den digitalen Inhalten auseinander, welche Lernmöglichkeiten nehmen die Studierenden wahr und wie nutzen sie diese? In der durchgeführten Studie wurden Aussagen der Studierenden darüber untersucht, wie sie einen Lernpfad bearbeitet haben und warum sie einen bestimmten Ansatz gewählt haben. Die Ergebnisse zeigen, dass der Erfolg des Kurses in hohem Maße davon abhängt, inwieweit die Studierenden ihre selbstregulierenden Lernfähigkeiten aktivieren konnten.
Schreiben im DaF-Unterricht – kommunikative Ziele auf dem Prüfstand
Authors: Marx Nicole 
Published: October 2023

Zusammenfassung
Mit der „Kommunikativen Wende“ der 1980er rückte sprachliche Interaktion in den Fokus des Fremdsprachenunterrichts. Dabei kamen und kommen weiterhin vor allem konzeptionell mündliche, nähesprachliche Phänomene zur Geltung. Diese Interpretation kommunikativen Unterrichts ist allerdings insbesondere mit Bezug auf die Entwicklung von Schriftlichkeit zu hinterfragen. Im Beitrag wird nach einer exemplarischen, kritischen Analyse von Schreibaufgaben moderner DaF-Lehrwerke für eine vertiefte Berücksichtigung der Zielperspektive distanzsprachlicher Kommunikation plädiert.
Design model-free adaptive PID controller based on lazy learning algorithm
Authors: Zhou Hongcheng 
Published: October 2023

Abstract
The nonlinear system is difficult to achieve the desired effect by using traditional proportional integral derivative (PID) or linear controller. First, this study presents an improved lazy learning algorithm based on k-vector nearest neighbors, which not only considers the matching of input and output data, but also considers the consistency of the model. Based on the optimization index of an additional penalty function, the optimal solution of the lazy learning is obtained by the iterative least-square method. Second, based on the improved lazy learning, an adaptive PID control algorithm is proposed. Finally, the control effect under the condition of complete data and incomplete data is compared by simulation experiment.
Self-template synthesis of hollow flower-like NiCo2O4 nanoparticles as an efficient bifunctional catalyst for oxygen reduction and oxygen evolution in alkaline media
Authors: Fu Lixiang , Ma Jingling , Zhang Zhikang , Wang Guangxin , Liu Yuliang , Li Wuhui 
Published: October 2023

Abstract
A method was proposed to synthesize hollow flower-like NiCo2O4 composed of porous nanosheets using a self-template approach. The unique structure is attributed to the synergistic effect of the Kirkendall effect and the Ostwald ripening mechanism. The sheet-like and porous structure endowed the material with a specific surface area of 137.1 m2 g−1 and a pore volume of 0.418 cm3 g−1. The distinctive structure and high-density active sites imparted excellent catalytic performance in oxygen reduction (ORR) and oxygen evolution (OER) reactions. Electrochemical tests showed that the limit current density of ORR reached 5.58 mA cm−2, comparable to that of the noble metal Pt/C (20 wt%). The overpotential of OER at a current density of 10 mA cm−2 was only 380 mV, significantly lower than that of the noble metal RuO2. These results indicate that the synthesized hollow flower-like NiCo2O4 has the potential to replace noble metals in ORR and OER catalytic applications.