bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sexual Activity and Related Factors of Older Women in Hunan, China: A Cross-Sectional Study
Authors: Li Ting , Luo Yang , Meng Yanting , Yue Jing , Nie Ming , Fan Ling , Tong Chenxi 
Published: December 2021

ABSTRACTBackgroundSexuality has an important impact on people’s physical and mental health, but current research on the sexual activity of older Chinese women has many limitations and more detailed studies are needed.AimThe objective was to determine the prevalence of sexual activity and related factors in women aged 55 to 85 years in Hunan, China.MethodsBased on the data from the Hunan Provincial Women Health Needs Survey in 2018, we conducted a secondary analysis of 2,401 older women aged 55 and above. The dependent variable was sexual activity, and independent variables included sociodemographic characteristics, health behaviors, reproductive and chronic medical history, and psychological characteristics. All statistical analyses were performed using SPSS 26.0. Chi-square test was used to assess the association between categorical variables, and binary logistic regression was used to examine factors related to sexual activity.OutcomesSexual activity and related factors.ResultsThe prevalence of sexual activity among older women was 12.5% (301/2401) in the past month. Having a partner (OR = 1.484; 95% CI, 1.048-2.101; P = .026), jogging (OR = 2.061; 95% CI, 1.391-3.054; P &lt; .001), dancing (OR = 1.477; 95% CI, 1.106-1.974; P = .008), vegetarian-based diet (OR = 2.197; 95% CI, 1.334-3.618; P = .002), meat-based diet (OR = 2.196; 95% CI, 1.144-4.216; P = .018) were positively associated with being sexually active. Whereas, aging (OR = 0.781; 95% CI, 0.647-0.942; P = .010), living in the urban (OR = 0.628; 95% CI, 0.488-0.808; P &lt; .001), hypertension (OR = 0.702; 95% CI, 0.520-0.949; P = .021), and anxiety (OR = 0.680; 95% CI, 0.475-0.972; P = .034) were negatively associated with being sexually active.Clinical ImplicationsHealth care workers need to be aware that older women still have sexual activity and understand the needs of older women for sex education, take the initiative to discuss safe sex with them, and solve their sexual problems.Strengths and LimitationsThis is one of the largest studies to determine the prevalence of sexual activity among older women in China and its related factors. In addition, new factors such as exercise types and eating habits related to sexual activity were discovered. The limitation of this study is that it did not use a specific questionnaire to assess the sexual activity and did not consider physical tenderness other than sexual intercourse.ConclusionsSome older women still have had sexual activity in the past month and factors such as lifestyles that can be changed and chronic diseases that can be self-managed were found to predict sexual activity.
Prevalence and risk factors of the symptoms of depression, anxiety, and stress during the COVID-19 pandemic in Bangladesh: a systematic review and meta-analysis
Authors: Hosen Ismail , al-Mamun Firoj , Mamun Mohammed A. 
Published: December 2021

Abstract
The COVID-19 pandemic affects people's psychological well-being as well as their risk of physical complications. Under the circumstance, it is essential to synthesize the existing evidence on psychological consequences with a view to fostering policymaking. Thus, a systematic attempt was compiled to review the Bangladeshi literature related to common mental health problems (i.e. depression, anxiety, and stress) during the COVID-19 pandemic. Adhering to the PRISMA guidelines, a systematic literature search was performed using Medline or PubMed, Scopus, PsycINFO, Web of Science, CINAHL, Google Scholar, PsyArxiv, MedRxiv, and ResearchGate, between 20 December 2020 and 5 March 2021, followed by predetermined eligibility criteria. The inclusion criteria for this review were observational studies involving at least one mental health problem (i.e. stress, depression, and anxiety) published in peer-reviewed journals or preprint servers in the English language after the inception of the pandemic in Bangladesh. The pooled prevalence of depression, anxiety, and stress was 47% (95% CI 39–55%, I2 = 99.14%), 47% (95% CI 39–54%, I2 = 99.78%), and 44% (95% CI 30–58%, I2 = 99.36%), respectively. Subgroup analysis revealed that students were experiencing a higher rate of depression, anxiety, and stress than general people and healthcare professionals. The associated risk factors of mental health problems were gender, age, residence area, family size, monthly family income, educational status, marital status, physical exercise, smoking, alcohol use, fear of COVID-19, presence of chronic illness, unemployment status, and exposure to COVID-19-related news and social media. This systematic review provides baseline data on the symptoms of depression, anxiety, and stress across various Bangladeshi cohorts, which are anticipated to be helpful to the respective authorities for implementing cohort-specific mental health strategies.
The Novallas bronze tablet: An inscription in the Celtiberian language and the Latin alphabet from Spain
Authors: Beltrán Lloris Francisco , Jordán Cólera Carlos , Díaz Ariño Borja , Simón Cornago Ignacio 
Published: December 2021

AbstractThe Novallas Bronze may be considered one of the most important epigraphic finds in recent years in Spain. It is a fragment of a public document datable to the last decades of the 1st c. BCE, composed in the Celtiberian language but written in the Latin alphabet. The Novallas Bronze is not only one of the latest inscriptions composed in this language – over half a century later than the famous inscriptions from Contrebia Belaisca – but also the longest Celtiberian document written in the Latin alphabet known thus far. This paper offers a complete publication of this exceptional document, as well as an analysis of the principal developments that the artifact illuminates and the consequent implications for the transformations that the Celtiberian people underwent during the transition from Republic to Empire, with particular focus on the process of Latinization.
Global sources of credibility: production integration, international institutions, and private property rights in authoritarian regimes
Authors: Tang Min , Chen Jia 
Published: December 2021

AbstractAn important field of the political economy literature examines the mechanism of property rights commitments in authoritarian regimes where formal political constraints are absent. While many of the existing studies focus on how domestic autocratic institutions shape the formation of property rights regimes, this paper takes an open-economy approach and examines the compound effect of global economic integration and intergovernmental organizations (IGOs) on property rights protection in authoritarian regimes. We propose that the domestic presence of foreign factors of production is positively associated with more credible property rights commitments in authoritarian economies. Moreover, this association is moderated by authoritarian regimes' participation in institutionalized IGOs, which enhance the organizational capacity of these foreign owners of production factors. Through the transnational networks of production integration, international institutions indirectly alter the domestic distribution of bargaining power between the authoritarian government and private economic actors, rendering the commitment to property rights protection more credible. An analysis of a panel dataset consisting of 105 authoritarian regimes yields preliminary evidence supporting our proposition.
Statistical Characteristics of Mid‐Latitude Ionospheric Irregularities at Geomagnetic Quiet Time: Observations From the Jiamusi and Hokkaido East SuperDARN HF Radars
Authors: Wang W. , Zhang J. J. , Wang C. , Nishitani N. , Yan J. Y. , Lan A. L. , Deng X. , Qiu H. B. 
Published: December 2021

AbstractNewly built Jiamusi (JME) radar and Hokkaido East (HOK) radar data reveal statistical features of the mid‐latitude ionospheric irregularities during quiet times. In this paper, the distribution features and seasonal variations of the scattering occurrence rate and convection velocity of the ionospheric, F‐region irregularities between 45°N and 60°N magnetic latitude (MLAT) during geomagnetic quiet times are studied by using one‐year observation data from the JME radar and HOK radar. The results show that the scattering occurrence rate is strongest in summer and weakest in winter in this region, and the highest value always appears on the dusk side, especially in summer and the equinox. Line‐of‐sight (LOS) velocity also shows significant seasonal variation. It is stronger in winter and the equinox than in summer, which is in good agreement with previously reported observations from six midlatitude Super Dual Auroral Radar Network radars in the North American sector. An interesting new finding is that on the night side, LOS velocity decreases first and then increases as the MLAT increases from 45°N to 56°N, particularly in summer and the equinox. This implies that there is a velocity reversal region during the geomagnetic quiet time in regard to night side, mid‐latitude, ionospheric convection.
A Modeling Analysis of the Apparent Linear Relation Between Mesospheric Temperatures and Meteor Height Distributions Measured by a Meteor Radar
Authors: Lee Wonseok , Lee Changsup , Kim Jeong‐Han , Kam Hosik , Kim Yong Ha 
Published: December 2021

AbstractA new method of estimating mesospheric temperature has recently been proposed by utilizing an apparent linear relation between atmospheric temperatures and full widths at half maximum (FWHMs) of meteor height distributions measured by a meteor radar (MR). However, the new method assumes that the meteor height distribution is dominantly dependent on the atmospheric conditions, rather than on meteoroid characteristics (mass and velocity). In order to verify this assumption, we have developed a meteor ablation model and applied it to the observed parameters by a MR at King Sejong Station (62.2°S, 58.8°W). The simulation results show that the FWHM of meteor height distribution increases linearly with the mesospheric temperature and its linear relation matches well with the observed relation. We found that the seasonal variation of meteor velocity distributions is significant but has only little effect on the variation of the height distribution. We also found that the observed characteristics of meteors are consistent with a Gaussian distribution of logarithmic masses, and this distribution is nearly invariable throughout the year with the average peak value of . Thus, we conclude that observed meteor height distributions are mainly dependent on the mesospheric temperature, and can be used as a mesospheric temperature indicator.
The New Radiosounding HARMonization (RHARM) Data Set of Homogenized Radiosounding Temperature, Humidity, and Wind Profiles With Uncertainties
Authors: Madonna Fabio , Tramutola Emanuele , SY Souleymane , Serva Federico , Proto Monica , Rosoldi Marco , Gagliardi Simone , Amato Francesco , Marra Fabrizio , Fassò Alessandro , Gardiner Tom , Thorne Peter William 
Published: December 2021

AbstractObservational records are more often than not influenced by residual non‐climatic factors which must be detected and adjusted for prior to their usage. In this work, we present a novel approach, named Radiosounding HARMonization (RHARM), providing a homogenized data set of temperature, humidity and wind profiles along with an estimation of the measurement uncertainties for 697 radiosounding stations globally. The RHARM method has been used to adjust twice daily (0000 and 1200 UTC) radiosonde data holdings at 16 pressure levels in the range 1,000–10 hPa, from 1978 to present, provided by the Integrated Global Radiosonde Archive. Relative humidity (RH) data are limited to 250 hPa. The applied adjustments are interpolated to all reported levels. RHARM is the first data set to provide homogenized time series with an estimation of the observational uncertainty at each sounding pressure level. By construction, RHARM adjusted fields are not affected by cross‐contamination of biases across stations and are fully independent of reanalysis data. Analysis of trends for temperature, RH and winds highlights increased geographical coherency of trends over 1978–2000 globally, but especially in the Northern Hemisphere and South America. RHARM shows warming trends of 0.39 K/decade at 300 hPa in the Northern Hemisphere and of 0.25 K/decade in the tropics. The RHARM adjustments also reduce differences with the European Centre for Medium‐Range Weather Forecast ERA5 reanalysis, with the strongest effect in the Northern Hemisphere for temperature and relative humidity. For wind speed, the comparison indicates a good agreement with ERA5 in the troposphere.
Investigation of possible underlying mechanisms behind water-induced glucose reduction in adults with high copeptin
Authors: Enhörning Sofia , Vanhaecke Tiphaine , Dolci Alberto , Perrier Erica T. , Melander Olle 
Published: December 2021

AbstractElevated copeptin, a surrogate marker of vasopressin, is linked to low water intake and increased diabetes risk. Water supplementation in habitual low-drinkers with high copeptin significantly lowers both fasting plasma (fp) copeptin and glucose. This study aims at investigating possible underlying mechanisms. Thirty-one healthy adults with high copeptin (> 10.7 pmol·L−1 (men), > 6.1 pmol−1 (women)) and 24-h urine volume of < 1.5L and osmolality of > 600 mOsm·kg−1 were included. The intervention consisted of addition of 1.5 L water daily for 6 weeks. Fp-adrenocorticotropic hormone (ACTH), fp-cortisol, 24-h urine cortisol, fasting and 2 h (post oral glucose) insulin and glucagon were not significantly affected by the water intervention. However, decreased (Δ baseline-6 weeks) fp-copeptin was significantly associated with Δfp-ACTH (r = 0.76, p < 0.001) and Δfp-glucagon (r = 0.39, p = 0.03), respectively. When dividing our participants according to baseline copeptin, median fp-ACTH was reduced from 13.0 (interquartile range 9.2–34.5) to 7.7 (5.3–9.9) pmol L−1, p = 0.007 in the top tertile of copeptin, while no reduction was observed in the other tertiles. The glucose lowering effect from water may partly be attributable to decreased activity in the hypothalamic–pituitary–adrenal axis.ClinicalTrials.gov: NCT03574688.
Antimicrobial and cytotoxic activity of electrosprayed chitosan nanoparticles against endodontic pathogens and Balb/c 3T3 fibroblast cells
Authors: Ibrahim Amir , Moodley Desigar , Uche Cosmas , Maboza Ernest , Olivier Annette , Petrik Leslie 
Published: December 2021

AbstractThe aims of this study were to synthesize highly positively charged chitosan nanoparticles (Ch-Np) using the electrospraying technique, and to test their antimicrobial activity against endodontic pathogens, and cytotoxicity against fibroblast cells. Ch-Np were synthesized from low molecular weight chitosan (LMW-Ch) using the electrospraying technique, and characterized. The antimicrobial activity was evaluated against Streptococcus mutans, Enterococcus faecalis, and Candida albicans in their planktonic state using a Time-Kill Test performed by using broth micro-dilution technique, and against biofilm biomass using a microtiter plate biofilm assay. The cytotoxicity was evaluated using Balb/c 3T3 fibroblast cells with the standard MTT assay. Electrospraying of LMW-Ch produced Ch-Np with an average size of 200 nm, and a surface charge of 51.7 mV. Ch-Np completely eradicated S. mutans and E. faecalis in the planktonic state and showed fungistatic activity against C. albicans. Furthermore, it significantly reduced the biofilm biomass for all the tested microbial species [S. mutans (p = 0.006), E. faecalis (p < 0.0001), and C. albicans (p = 0.004)]. When tested for cytotoxicity using 3T3 cells, Ch-Np showed no cytotoxicity. In conclusion, the highly positively charged, colloidal dispersion of Ch-Np are effective as a biocompatible endodontic antimicrobial agent.
Design of high roll‐off frequency selective surface based on single‐layer SIW cavity with fully canonical filtering responses
Authors: Wang Xian , Zhou Dongfang , Wang Yue , Liu Qikun , An Na 
Published: December 2021

AbstractIn this paper, a novel design of high roll‐off frequency selective surface (FSS) is proposed based on a single‐layer substrate integrated waveguide (SIW) cavity. Fully canonical filtering responses with three transmission poles (TPs) and three transmission zeros (TZs) are obtained by employing transversal signal‐interference techniques (TSITs). The FSS unit cell can be regarded as a combined triple‐mode cavity consisting of one cross‐slot resonator and two SIW cavities. By using the filtering coupling matrix, the FSS can be well designed and analysed. Accordingly, to verify the design concept, a prototype is fabricated and experimented. Measured and simulated results are in good agreement, showing high performances in terms of high roll‐off and low profile.
A novel distribution system state estimator based on robust cubature particle filter used for non‐gaussian noise and bad data scenarios
Authors: Shi Qian , Liu Min , Hang Luqing 
Published: December 2021

AbstractState estimation is the core function of distribution management system, and its estimation accuracy directly affects the operation of other advanced application functions of distribution management system. However, the access of a large number of distributed generation brings non‐Gaussian noise and bad data problems, which affect the accuracy of state estimation. Therefore, based on the conventional cubature particle filter (CPF), two new state estimation operators, robust cubature filter 1 (RCPF1) and robust cubature filter 2 (RCPF2), are proposed by introducing the Huber's M‐estimation theory into the CPF algorithm and integrating a time‐varying, multi‐dimensional scale factor with the CPF, respectively. The simulation results based on IEEE33 bus system showed that: (1) RCPF has better estimation accuracy and robustness than conventional cubature particle filter and cubature Kalman filter; (2) RCPF2 has better estimation performance than RCPF1 in the case of non‐Gaussian noise and bad data.
MFAUNet: Multiscale feature attentive U‐Net for cardiac MRI structural segmentation
Authors: Li Dapeng , Peng Yanjun , Guo Yanfei , Sun Jindong 
Published: December 2021

AbstractThe accurate and robust automatic segmentation of cardiac structures in magnetic resonance imaging (MRI) is significant in calculating cardiac clinical functional indices, and diagnosing heart diseases. Most U‐Net based methods use pooling, transposed convolution, and skip connection operations to integrate the multiscale features for improved segmentation in cardiac MRI. However, this architecture lacks adequate semantic connection between the channel and spatial information, and robustness in segmenting objects with significant shape variations. In this paper, a new multiscale feature attentive U‐Net for cardiac MRI structural segmentation method is proposed. An attention mechanism is adopted after concatenating the multi‐level features to aggregate different scale features and determine on which features to focus. Cascade and parallel dilated convolution is also employed in the decoder blocks and skip connection is employed to enhance the ability of sensing receptive fields for multiscale context information. Furthermore, deep supervision approach with a loss function that combines the dice and cross‐entropy losses to reduce overfitting and ensure better prediction is introduced. The proposed method was evaluated on three public cardiac datasets. The experimental results indicate that the method achieved competitive segmentation performance with the three datasets, which verifies the robustness and generalisability of the proposed network. In comparison with conventional U‐Net methods, the model leverages attention mechanism and dilated convolution block, which increases the semantic connection between the channel and the spatial information, and improves the robustness of the right ventricle segmentation performance. From the view of the Dice scores and segmentation results, the multiscale feature attentive U‐Net method is one of effective methods in segmenting cardiac MRI structures.
Phase characteristics of frequency diverse array radar: Phase radiation pattern, phase period, and phase centre
Authors: Ge Jiaang , Xie Junwei , Wang Bo 
Published: December 2021

AbstractConsidering the signal model of the frequency diverse array (FDA), the amplitude and phase characteristics cannot be ignored. The beampattern mainly reflects the amplitude characteristics. Existing investigations show that the angle‐range dependence of the beampattern offers the FDA several benefits regarding detection and location. However, for the FDA, the phase characteristics that have not been studied are significant when considering the imaging and anti‐jamming. In this work, the authors investigate the phase characteristics of the FDA based on the proposed generalised FDA structure. Then, based on the structure, the authors derive the general closed form of the signal model, the phase‐radiation function, and the phase‐radiation pattern. Moreover, the periodicity of the phase radiation pattern is analysed using the recursive algorithm as compared with the rational analysis. Finally, using the three‐point method, the phase centre of the generalised FDA is derived. Furthermore, the proposed signal model and the derived phase characteristics of the FDA are verified by extensive numerical results.
Brustwanddeformitäten bei Kindern und Jugendlichen
Authors: Bergmann Florian , Muensterer Oliver J. 
Published: December 2021

ZusammenfassungBrustwanddeformitäten im Kindes- und Jugendalter sind als Ganzes betrachtet
relativ häufig, wobei sie ein weites Spektrum von zum Teil sehr seltenen
Entitäten umfassen. Pectus excavatum hat die höchste Prävalenz, es können
symptomatische und asymptomatische Fälle auftreten. Symptomatische Patienten
sollten behandelt werden, wobei die minimalinvasive operative Korrektur als
effektiveres Verfahren neben der Saugglockenbehandlung die größte Rolle spielt.
Pectus carinatum und Mischformen der Brustwanddeformität können ebenfalls zu
einem erheblichen Leidensdruck führen und bedürfen in solchen Fällen einer
individualisierten Therapie. Syndromale Brustwanddeformitäten wie beispielsweise
das Jeune-Syndrom bilden eine eigene Gruppe von sehr seltenen Erkrankungen, die
erhebliche, zum Teil auch lebensbedrohliche Komorbiditäten aufweisen. Solche
Patienten sollten in Zentren mit entsprechender Expertise interdisziplinär und
multimodal behandelt werden. Diese Übersichtsarbeit stellt die einzelnen
Brustwanderkrankungen, deren Bedeutung und mögliche Therapieansätze vor.
Anti-inflammatory Constituents from Caulis Trachelospermi
Authors: Song Hongzhi , Tan Jinni , Ma Ruijing , Kennelly Edward J , Tan Qingang 
Published: December 2021

AbstractCaulis Trachelospermi, the stems with leaves of Trachelospermum jasminoides, is a well-known herbal drug of the Apocynaceae family recorded in the Chinese pharmacopeia and used for the treatment of inflammation-related diseases by ethnic minorities of China. The mechanism of anti-inflammatory activity and responsible constituents of T. jasminoides have not been well elucidated in previous studies. Preliminary investigation showed that both the water and the ethyl ester extracts of T. jasminoides exhibited potent inhibitory activity on nitric oxide (NO) production using lipopolysaccharide (LPS)-stimulated murine macrophages. Phytochemical investigation on these extracts afforded 23 compounds, including three new compounds (1 –3) identified on the basis of spectroscopic and mass spectrometric data. Anti-inflammatory bioassay showed that compounds 17, 18, 22, and 23 inhibited significantly the production of NO in a
concentration-dependent manner. Further studies indicated that compound 23 inhibited significantly TNF-α and IL-6 produced by LPS-stimulated RAW 264.7 cells with good selectivity, as well as protein expression of iNOS in RAW 264.7 cells. These chemical constituents may contribute to the anti-inflammatory potential of T. jasminoides.