bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of plasma testosterone, estradiol, and progesterone levels in Vietnam female patients with moderate to severe acne vulgaris
Authors: Nguyen Phu Cuong , Nguyen Hoang Van , Vu Van Tien , Pham Van Tran , Tran Dang Quyet , Nguyen Thanh Tung 
Published: January 2023

Introduction: Acne is a chronic inflammatory disorder of the pilosebaceous unit with differential pathogenesis. To elucidate the roles of hormones in acne pathogenesis, we conducted a study to evaluate the plasma testosterone, estradiol, and progesterone levels in women with acne vulgaris. Methods: We conducted a cross-sectional descriptive study, and 140 women with acne vulgaris were examined; their plasma estradiol, progesterone, and testosterone were analyzed by chemiluminescence technique and compared with the healthy control group. Results: Increased plasma hormone levels in women with acne vulgaris accounted for 33.57%, and hyperandrogenism accounted for 20.71% of cases. We found significant differences in testosterone levels (mean value, 56.92 ± 27.64ng/dL, 60.71± 25.85ng/dL versus 38.35 ± 10.09ng/dL, p<0.01), respectively, in the moderate to severe acne group and the control group. However, the estradiol level of the moderate and severe acne groups (325.12 ± 91.79 and 305.26 ± 83.01pmol/l) was lower than the control group (368.6 ± 58.34pmol/l), with p-value under 0.05. No statistically significant differences were found for progesterone levels. Conclusion: Female patients with moderate to severe acne vulgaris had abnormalities in plasma testosterone and estradiol levels. These abnormalities might be part roles in the pathogenesis of acne vulgaris, even when the mean levels were in the normal range.
Syrian medical and non-medical students’ knowledge about chronic obstructive pulmonary disease (COPD): a cross-sectional online survey
Authors: Hadakie Rana , Alkwatli Khalil , Haddad Shaden 
Published: January 2023

Background: Chronic obstructive pulmonary disease (COPD) represents a public health challenge globally. It is characterized by persistent airflow limitation and diagnosed mainly by spirometry. However, COPD is often underdiagnosed and the lack of public awareness about it may be a reason. Syria has suffered from a conflict that has affected its health system disastrously. In addition, COPD prevalence in Syria is estimated to be the highest among middle eastern countries. Therefore, evaluation and increasing public awareness about COPD may help in reducing the COPD burden in this country. University students are an interesting population to study as universities are one of the main places of campaigns. Besides, such studies may be useful in improving the medical curriculum and teaching for COPD. Methods: A cross-sectional self-administrated online survey was conducted in this study, consisting of four sections: demographic characteristics of the study’s sample, their smoking habits, COPD-related knowledge, and sources of information about COPD. Results: Of the 794 participants, 562 were medical students and 268 were non-medical. Nearly 50% of them were either current or negative smokers. The non-medical group showed a low level of knowledge about COPD since only 27% of them had heard previously about COPD. In relation to medical students, they showed better knowledge about COPD as 80.2% of them declared that they had heard about COPD, and 71% correctly identified what COPD refers to. Only about 15% of medical students used reliable sources of medical information to get information related to COPD. Conclusions: Syrian medical and non-medical students’ knowledge of COPD is not satisfied and needs to be improved either by awareness campaigns or by improving medical curricula and teaching about this disease.
Particle physics facing a pandemic
Authors: KARDOS Adam , MOCH Sven-Olaf , RODRIGO German 
Published: January 2023

Background: Ordinary life as we knew it changed in March of 2020 due to the global COVID-19 pandemic. While springtime in general was well awaited and regarded as a synonym for rejuvenation, March of 2020 on the other hand brought lock-down, curfews, home working and digital education to the lives of many. The particle physics community was not an exception: research institutes and universities introduced remote working and digital lecturing and all workshops, conferences and summer schools were cancelled, got postponed or took place online. Methods: Using publicly available data from the INSPIRE and arXiv databases we investigate the effects of this dramatic change of life to the publishing trends of the high-energy physics community with an emphasis on particle phenomenology, theory and CERN’s two major LHC experiments, ATLAS and CMS. To get insights, we gather information about publishing trends in the last 20 years, ending by December 2021, and analyse it in detail. Results: Our analysis revealed that the publishing trend in particle physics was only been affected in a minor way. Conclusions: Publication data show that difficult times were successfully overcome and that the community even increased scientific output.
Modeling Customer Satisfaction’s Impact on Loyalty: Insights for Customer-Centric Resource Allocation
Authors: Li Yinxing , Xing Aijing , Terui Nobuhiko 
Published: January 2023

This study explores the nonlinear modeling of customer satisfaction (CS) and loyalty for resource allocation strategies that promote efficient loyalty programs. We first introduce global models to reflect several important nonlinear characteristics, particularly (a) a saturation-attainable limit of effectiveness, (b) nonconstant marginal returns, and (c) asymmetric responses between satisfied and dissatisfied customers. In the proposed models, we put forth the joint use of two types of mixture models to deal with different levels of heterogeneity. Based on the model best supported among alternatives in the literature, we targeted customers using expected incremental loyalty, which is derived from the joint use of an estimated response curve of loyalty to satisfaction and an empirical distribution of CS scores. Then, we evaluate the efficiency of loyalty programs under the assumption of full and limited access to customers and subsequently derive managerial implications. For instance, through a counterfactual simulation of the models for the three industries, we find that improving the perceived quality in the mobile communication industry may have a greater effect on loyalty than in the hotel and convenience store industries because of its higher switching cost. Funding: N. Terui acknowledges funding by JSPS KAKENHI [Grants (A)17H01001 and (A)22H00056]. Supplemental Material: The online appendix is available at https://doi.org/10.1287/serv.2022.0313 .
AP–HTPB propellant combustion under strain conditions with laser absorption spectroscopy
Authors: Gu Mingming , Ouyang Jianfeng , Wang Shaojie , Yuan Wenhao , Shi Xiaoming , Hou Kaiyu , Xiao Libai , Gao Hongxu , Zhou Zhongyue , Qi Fei 
Published: January 2023

Understanding the combustion behaviors of solid propellant with different levels of
strains is of practical interest. In this work, an experimental study
of the effects of static and dynamic strains on the burning rate,
temperature, CO, and

C
O

2

formation of aluminized ammonium
perchlorate (AP)-hydroxyl terminated poly-butadiene (HTPB) propellant
combustion was presented at initial pressures of 0.1 MPa,
0.2 MPa, and 0.5 MPa. The strains were being applied
onto solid propellant by exerting static and cyclic loadings. The
propellant burning rate was acquired by a 4 kHz high-speed
photography system, and the combustion temperature, CO, and

C
O

2

column densities were measured at
10 kHz through laser absorption spectroscopy (LAS). At
atmospheric pressure, it was demonstrated that the propellant burning
rate increased with tensile stress and decreased with compressive
stress. The measured flame temperature showed a similar correlation
with strains as compared to the propellant burning rate. At elevated
pressures, the increase of the propellant burning rate due to tensile
stress was more evident, while the difference in combustion
temperatures was less significant. For the cyclic strain condition,
the variations of the measured

C
O

2

and CO column densities were
consistent with the static strain condition.
Within and between-day variation and associations of symptoms in Long Covid: Intensive longitudinal study
Authors: Burton Christopher , Dawes Helen , Goodwill Simon , Thelwell Michael , Dalton Caroline 
Published: January 2023

Background
People with Long Covid (Post Covid-19 Condition) describe multiple symptoms which vary between and within individuals over relatively short time intervals. We aimed to describe the real-time associations between different symptoms and between symptoms and physical activity at the individual patient level.

Methods and findings
Intensive longitudinal study of 82 adults with self-reported Long Covid (median duration 12–18 months). Data collection involved a smartphone app with 5 daily entries over 14 days and continuous wearing of a wrist accelerometer. Data items included 7 symptoms (Visual Analog Scales) and perceived demands in the preceding period (Likert scales). Activity was measured using mean acceleration in the 3-hour periods preceding and following app data entry. Analysis used within-person correlations of symptoms pairs and both pooled and individual symptom networks derived from graphical vector autoregression. App data was suitable for analysis from 74 participants (90%) comprising 4022 entries representing 77.6% of possible entries. Symptoms varied substantially within individuals and were only weakly autocorrelated. The strongest between-subject symptom correlations were of fatigue with pain (partial coefficient 0.5) and cognitive difficulty with light-headedness (0.41). Pooled within-subject correlations showed fatigue correlated with cognitive difficulty (partial coefficient 0.2) pain (0.19) breathlessness (0.15) and light-headedness (0.12) but not anxiety. Cognitive difficulty was correlated with anxiety and light-headedness (partial coefficients 0.16 and 0.17). Individual participant correlation heatmaps and symptom networks showed no clear patterns indicative of distinct phenotypes. Symptoms, including fatigue, were inconsistently correlated with prior or subsequent physical activity: this may reflect adjustment of activity in response to symptoms. Delayed worsening of symptoms after the highest activity peak was observed in 7 participants.

Conclusion
Symptoms of Long Covid vary within individuals over short time scales, with heterogenous patterns of symptom correlation. The findings are compatible with altered central symptom processing as an additional factor in Long Covid.
Health care professionals’ perceptions of unprofessional behaviour in the clinical workplace
Authors: Dabekaussen Kirsten F. A. A. , Scheepers Renée A. , Heineman Erik , Haber Adam L. , Lombarts Kiki M. J. M. H. , Jaarsma Debbie A. D. C. , Shapiro Jo 
Published: January 2023

Background
Unprofessional behaviour undermines organizational trust and negatively affects patient safety, the clinical learning environment, and clinician well-being. Improving professionalism in healthcare organizations requires insight into the frequency, types, sources, and targets of unprofessional behaviour in order to refine organizational programs and strategies to prevent and address unprofessional behaviours.

Objective
To investigate the types and frequency of perceived unprofessional behaviours among health care professionals and to identify the sources and targets of these behaviours.

Methods
Data was collected from 2017–2019 based on a convenience sample survey administered to all participants at the start of a mandatory professionalism course for health care professionals including attending physicians, residents and advanced practice providers (APPs) working at one academic hospital in the United States.

Results
Out of the 388 participants in this study, 63% experienced unprofessional behaviour at least once a month, including failing to respond to calls/pages/requests (44.3%), exclusion from decision-making (43.0%) and blaming behaviour (39.9%). Other monthly experienced subtypes ranged from 31.7% for dismissive behaviour to 4.6% for sexual harassment. Residents were more than twice as likely (OR 2.25, p<0.001)) the targets of unprofessional behaviour compared to attending physicians. Female respondents experienced more discriminating behaviours (OR 2.52, p<0.01). Nurses were identified as the most common source of unprofessional behaviours (28.1%), followed by residents from other departments (21%).

Conclusions
Unprofessional behaviour was experienced frequently by all groups, mostly inflicted on these groups by those outside of the own discipline or department. Residents were most frequently identified to be the target and nurses the source of the behaviours. This study highlights that unprofessional behaviour is varied, both regarding types of behaviours as well as targets and sources of such behaviours. This data is instrumental in developing training and remediation initiatives attuned to specific professional roles and specific types of professionalism lapses.
School-Based meditation in adolescents: an integrative literature review
Authors: Pinto Nilson Vieira , Sarmento Vivianne dos Santos Moreira , Sousa Roberto , Girão Áthila Campos , Frota Mirna Albuquerque 
Published: January 2023

Abstract

Objectives
Utility of cognitive-behavioral practice interventions in school settings have been discussed by the scientific community regarding their possibility of insertion in the educational field. In this way, this review article analyzes the scientific production on the practice of meditation offered at school in adolescents, since the appropriation of studies that point to reflections and perspectives of meditative practice can favor the development of new pedagogical trajectories in the school environment.

Content
The electronic databases VHL, PubMed, and CAPES were consulted, using the combination of the terms related to meditation, adolescents, and school. This analysis resulted in eight articles, including field research and reviews, published between 2010 and 2021.

Summary
The articles showed improvement in emotional coping skills, social relationships, self-regulation, control of mood levels, stress, depression, and anger, and significant gains in self-reflection and academic attention. They pointed out that elementary and high school students present more significant responses, and these factors, such as duration, frequency, and systematization of the session, can interfere with these responses.

Outlook
These results indicate that meditation practice in adolescents can be a valuable strategy for health promotion and educational training in the school environment.
Groundwater flow modeling and hydraulic assessment of Al-Ruhbah region, Iraq
Authors: Zwain Hanadi H. , Abed Basim Sh. 
Published: January 2023

Abstract
Al-Ruhbah region is located in the southwest of Najaf Governorate. A numerical model was created to simulate groundwater flow and analyze the water quality of the groundwater, by developing a conceptual model within the groundwater modeling system software. Nineteen wells were used, 15 for pumping and four for observation. A three-dimensional model was built based on the cross-sections indicating the geologic layers of the study area, which were composed of five layers. When a distance of 1,000 m between the wells was adopted, 135 wells can be operated simultaneously. These wells were hypothetically operated at 6, 12, and 18 h intervals, with a discharge of 200, 430, and 650 m3/day, respectively, and the maximum drawdowns of 12.5, 15, and 21 m were achieved. Water was also extracted from five wells in the study area to evaluate the quality of water for irrigation purposes and to characterize the type of water in these wells based on the Food and Agriculture Organization and Iraqi standards. The results of the laboratory tests revealed that the water suffers from different salinity concentrations, so for a large part of the study area, the water is suitable for some plants that can withstand high salt ranges between 3,000 and7,500 µc/cm.
Revisiting the concepts of translation studies: equivalence in linguistic translation from the point of view of Peircean universal categories
Authors: Rędzioch-Korkuz Anna 
Published: January 2023

Abstract
The concept of equivalence seems to be one of the most contentious issues of the academic discourse on linguistic translation, as it has long been associated with the much criticised approaches that would follow the naive idea of sameness or close correspondence between languages. For these reasons there have been voices claiming that the concept is not needed and, as such, should be rejected. However, equivalence is central to linguistic translation, being one of the main goals of this activity, even though it is often hidden behind other concepts, including adequacy, relevance or interpretive resemblance. Accordingly, a more global approach offered by semiotics may help to revisit the traditional, yet unpopular, understanding of equivalence. This article attempts to discuss the concept of equivalence from the point of view of the universal categories put forward by Charles Sanders Peirce. To this end it provides an overview of approaches to equivalence within the discipline of translation studies, lists the most pertinent features of the concept and refers them to Peirce’s universal categories. It is argued that equivalence is founded on the triad similarity-difference-mediation that is determined by and within the context of translation.
Counting and mapping of subwavelength nanoparticles from a single shot scattering pattern
Authors: Chan Eng Aik , Rendón-Barraza Carolina , Wang Benquan , Pu Tanchao , Ou Jun-Yu , Wei Hongxin , Adamo Giorgio , An Bo , Zheludev Nikolay I. 
Published: January 2023

Abstract
Particle counting is of critical importance for nanotechnology, environmental monitoring, pharmaceutical, food and semiconductor industries. Here we introduce a super-resolution single-shot optical method for counting and mapping positions of subwavelength particles on a surface. The method is based on the deep learning analysis of the intensity profile of the coherent light scattered on the group of particles. In a proof of principle experiment, we demonstrated particle counting accuracies of more than 90%. We also demonstrate that the particle locations can be mapped on a 4 × 4 grid with a nearly perfect accuracy (16-pixel binary imaging of the particle ensemble). Both the retrieval of number of particles and their mapping is achieved with super-resolution: accuracies are similar for sets with closely located optically unresolvable particles and sets with sparsely located particles. As the method does not require fluorescent labelling of the particles, is resilient to small variations of particle sizes, can be adopted to counting various types of nanoparticulates and high rates, it can find applications in numerous particles counting tasks in nanotechnology, life sciences and beyond.
Chiral-magic angle of nanoimprint meta-device
Authors: Chen Mu Ku , Zhang Jing Cheng , Leung Cheuk Wai , Sun Linshan , Fan Yubin , Liang Yao , Yao Jin , Liu Xiaoyuan , Yuan Jiaqi , Xu Yuanhao , Tsai Din Ping , Pang Stella W. 
Published: January 2023

Abstract
The magic angle of Twistronics has attracted a lot of attention because of its peculiar electrical characteristics. Moiré patterns formed by the superlattice of a twisted bilayer change overall physical properties. Circular dichroism can also be manipulated through the generated moiré pattern. Here, we report a polymer-based twisted bilayer meta-device fabricated by multilayer nanoimprint technology and study the magic angle of chirality. The superlattice of the bilayer meta-device creates moiré patterns and brings unique chiral optical responses. The bilayer nanoimprint technology is developed for metasurfaces with relative twist angles. Via the twist angle control, polymer materials with a low refractive index can manipulate the electric field of the light and reveal the chiral magic angle. Moreover, the shape of the meta-atoms plays a key role in chiral magic angle tuning. The chirality engineering by the reported nanoimprint technology and chiral meta-devices may contribute to applications in chiral imaging, biomedical sensing, lasing, and tunable optical devices.
Hydrogen bonded dimers in the crystal structure of 2-chloro-N-((3,5-dimethylphenyl)carbamoyl)-nicotinamide, C30H28Cl2N6O4
Authors: Wang Yi-Ning , Min Li-Jing , Han Liang , Liu Xing-Hai , Sun Guo-Xiang 
Published: January 2023

Abstract
C30H28Cl2N6O4, monoclinic, P21/n (no. 14), a = 15.812(5) Å, b = 8.820(3) Å, c = 22.615(7) Å, β = 109.814(10)°, V = 2967.2(16) Å3, Z = 8, Rgt
(F) = 0.0489, wRref
(F
2) = 0.1302, T = 296(2) K.
Crystal structure of poly[di-µ2-aqua-aqua-nitrato-κ2
O,O′-(µ3-2-nitroisophthalato-κ4
O,O′:O″:O′″)barium(II)natrium(II)] monohydrate, C8H11BaN2NaO13
Authors: Huang Guang , Xing Yalong 
Published: January 2023

Abstract
C8H11BaN2NaO13, triclinic,

P

1
‾

$P\overline{1}$

(no. 2), a = 7.4892(6) Å, b = 9.9140(9) Å, c = 11.3274(7) Å, α = 106.813(7)°, β = 98.508(6)°, γ = 107.024(7)°, V = 744.53(11) Å3, Z = 2, R
gt(F) = 0.0316, wR
ref(F
2) = 0.0663, T = 292.6(6) K.
Phase-preserving methods to visualise ultrasonic fields with schlieren imaging
Authors: Hetkämper Tim , Koch Kevin , Claes Leander , Henning Bernd 
Published: January 2023

AbstractSchlieren imaging allows visualising local density modulations in optically transparent media, which enables to analyse ultrasonic wave propagation. In typical measurement setups, spatial filtering is applied. Commonly, phase information of the ultrasonic wave is lost, which e.g. prevents accurate tomographic reconstruction. In this work two methods are presented to preserve phase information. The first method relies on the combination of two different spatial filters, while the second method does not require any spatial filtering. The fractional Fourier transform is applied to explain and simulate the effects occurring if the position of one of the optical lenses in a schlieren measurement setup is varied. Exemplary images of ultrasonic waves are shown to demonstrate the application of both methods.