bluuebunny/crossref_metadata_2025_split huggingface dataset:
An X-Ray-dim “Isolated” Neutron Star in a Binary?
Authors: Lin Jie , Li Chunqian , Wang Weiyang , Xu Heng , Jiang Jinchen , Yang Daoye , Yaqup Shahidin , Iskanda Abdusamatjan , Ma Shuguo , Niu Hubiao , Esamdin Ali , Liu Shuai , Ramsay Gavin , Vines Jose I. , Shi Jianrong , Xu Renxin 
Published: February 2023

Abstract
We report the discovery of a dark companion to 2MASS J15274848+3536572 with an orbital period of 6.14 hr. Combining the radial velocity from LAMOST observations and modeling of the multiband light curve, one obtains a mass function of ≃0.131 M
⊙, an inclination of

45

.°

20

−
0

.°

20

+
0

.°

13

, and a mass ratio of

0.631

−
0.003

+
0.014

, which demonstrate the binary nature of the dark companion with a mass of 0.98 ± 0.03M
⊙ and a main-sequence K9-M0 star of 0.62 ± 0.01 M
⊙. LAMOST optical spectra at a range of orbital phases reveal extra-peaked H
α
emission that suggests the presence of an accretion disk. The dark companion does not seem to be a white dwarf because of the lack of any observed dwarf nova outbursts in the long-term data archive, although a magnetic white dwarf cannot be excluded. Alternatively, we propose a scenario wherein the dark companion is a neutron star, but we have not detected radio pulsations or a single pulse from the system with the FAST (Five-hundred-meter Aperture Spherical radio Telescope), which hints at a radio-quiet compact object. If the dark companion is identified as a neutron star, it will be the nearest (∼118 pc) and lightest neutron star. Furthermore, kinematic analysis of the system’s orbit in the galaxy may suggest its supernova event is associated with the radionuclide 60Fe signal observed from deep-sea crusts. This radio-quiet and X-ray-dim nearby neutron star may resemble an XDINS (X-ray-dim isolated neutron star) but in a binary.
(523599) 2003 RM: The Asteroid that Wanted to be a Comet
Authors: Farnocchia Davide , Seligman Darryl Z. , Granvik Mikael , Hainaut Olivier , Meech Karen J. , Micheli Marco , Weryk Robert , Chesley Steven R. , Christensen Eric J. , Koschny Detlef , Kleyna Jan T. , Lazzaro Daniela , Mommert Michael , Wainscoat Richard J. 
Published: February 2023

Abstract
We report a statistically significant detection of nongravitational acceleration on the subkilometer near-Earth asteroid (523599) 2003 RM. Due to its orbit, 2003 RM experiences favorable observing apparitions every 5 yr. Thus, since its discovery, 2003 RM has been extensively tracked with ground-based optical facilities in 2003, 2008, 2013, and 2018. We find that the observed plane-of-sky positions cannot be explained with a purely gravity-driven trajectory. Including a transverse nongravitational acceleration allows us to match all observational data, but its magnitude is inconsistent with perturbations typical of asteroids such as the Yarkovsky effect or solar radiation pressure. After ruling out that the orbital deviations are due to a close approach or collision with another asteroid, we hypothesize that this anomalous acceleration is caused by unseen cometary outgassing. A detailed search for evidence of cometary activity with archival and deep observations from the Panoramic Survey Telescope and Rapid Response System and the Very Large Telescope does not reveal any detectable dust production. However, the best-fitting H2O sublimation model allows for brightening due to activity consistent with the scatter of the data. We estimate the production rate required for H2O outgassing to power the acceleration and find that, assuming a diameter of 300 m, 2003 RM would require Q(H2O) ∼ 1023 molec s−1 at perihelion. We investigate the recent dynamical history of 2003 RM and find that the object most likely originated in the mid-to-outer main belt (∼86% probability) as opposed to from the Jupiter-family comet region (∼11% probability). Further observations, especially in the infrared, could shed light on the nature of this anomalous acceleration.
Fomitiporella crystallina sp. nov. (Basidiomycota, Hymenochaetales) from China
Authors: Ji Xiao-Hong , Fan Longfei 
Published: February 2023

Fomitiporella is an important genus of wood-decaying fungi. Many new species were revealed in the last five years, based on morphological characters and molecular data. During a study on the taxonomy of Fomitiporella, two specimens from China were investigated, which have morphological characteristics close to Fomitiporella. After morphological examinations and phylogenetic analyses, a new species was confirmed to be a member of the Fomitiporella clade.
Fomitiporella crystallina sp. nov. is described and illustrated as a new species, based on morphological characters and molecular evidence. It has perennial, irregular, pileate basidiocarps, an indistinct subiculum (ultrathin to almost lacking), lack of any kind of setae, has brownish, thick-walled basidiospores and causes a white rot. A molecular study, based on the combined ITS (internal transcribed spacer region) and nrLSU (the large nuclear ribosomal RNA subunit) dataset, supports the new species in Fomitiporella. The differences between the new species and phylogenetically related and morphologically similar species are discussed. A key to species with pileate to effused-reflexed basidiocarps of Fomitiporella is given.
Réduire l’ambiguïté d’un cours en ligne de global entrepreneurship : pertinence du cadre weickien
Authors: Marsal Christine 
Published: February 2023

Les recherches sur l’enseignement à distance concernent peu l’entrepreneuriat dans un contexte international. Pour répondre à cet état de fait, notre étude propose un cadre d’analyse managérial. Dans le contexte de ce cours, les étudiants sont placés en situation d’ambiguïté. Nous cherchons à savoir comment la combinaison des actions et des interactions permet aux étudiants de surmonter les ambiguïtés d’un cours à distance de Global Entrepreneurship . Pour répondre à cette question nous nous appuyons sur une étude de cas présentée sous la forme d’une histoire racontée : retours d’expérience de 47 étudiants participant à la première session du cours (2017-2018), notes de l’enseignant. Les résultats indiquent que les étudiants doivent surmonter plusieurs causes d’ambiguïté, la plupart s’adaptent à ce contexte. Les enseignants font évoluer l’ organizing du cours afin de favoriser les interactions entre étudiants. Les spécificités d’un tel cours pourraient intéresser des enseignants ou des cadres d’entreprises internationales.
Aménager un espace suffit-il à ce qu’il soit habité ? Conceptions de la co-intervention des enseignants spécialisés chargés des aides à dominante pédagogique
Authors: Merini Corinne , Thomazet Serge 
Published: February 2023

Cette recherche qualitative menée, en France, en collaboration avec la Fédération nationale des associations de maîtres E (Fname) interroge la place prise, à l’école primaire, par les enseignants spécialisés et leurs partenaires en contexte d’aide aux élèves en difficulté. À partir de photos et d’entretiens d’autoconfrontation simples et croisés, et par une double lecture sociologique et psychologique, nous montrons que la manière dont chacun va habiter les espaces de travail conduit à des débats de normes et suppose des ajustements de sens qui passent par la négociation et des décisions partagées entre acteurs et avec le système.
Processus de collaboration et rôle des objets frontières en classe passerelle
Authors: Pelletier Liliane 
Published: February 2023

Dans le contexte de l’école inclusive, il est recommandé de travailler en équipe. Or, la forme scolaire reste structurée par des frontières visibles et invisibles (Pelletier et Thomazet, 2019). L’étude porte sur la classe passerelle, dispositif situé au carrefour de plusieurs métiers avec la participation des parents en classe. À partir de photos et d’entretiens d’autoconfrontation simples, nous cherchons à éclairer le processus de collaboration dans ce territoire partagé et à repérer le rôle des objets frontières. Les résultats permettent de caractériser d’une part, l’activité collective en confortant le rôle structurant du leadership de l’enseignant (Bardy et al. , 2019) et d’autre part, des objets frontières facilitant la dynamique collaborative entre famille et école : débriefing/briefing, espace-parents en classe, ateliers parentaux et activités pédagogiques coanimées.
Effet du temps d’exposition aux écrans sur le graphisme des enfants de 5 à 6 ans
Authors: André Alexandre , Cochetel Odile 
Published: February 2023

Une étude épidémiologique transversale a été menée en 2019-2020 dans sept classes de grande section de maternelle en Auvergne. Le critère de jugement principal regroupe trois activités graphiques étalonnées, réalisées lors d’un bilan individuel à l’école. Le temps hebdomadaire d’exposition aux écrans de l’enfant a été évalué lors d’un entretien parental. 127 enfants ont été inclus. Les résultats montrent que les enfants passant plus de 10 heures en semaine d’école (plus de 20 heures en semaine de vacances scolaires) sur écran, quelle que soit leur origine sociale ou géographique ont des habiletés graphiques significativement plus faibles. D’autres travaux seront nécessaires pour explorer ce lien. Des programmes d’éducation en santé dans le milieu scolaire, sanitaire, et auprès des parents, seraient utiles afin d’améliorer l’usage des écrans et prévenir les troubles d’apprentissage.
Les conséquences de la sortie de la Russie du Conseil de l’Europe
Authors: Costa Jean-Paul 
Published: February 2023

À la suite de l’offensive militaire de la Russie contre l’Ukraine, le 24 février 2022, la Fédération de Russie a été aussitôt exclue du Conseil de l’Europe et a cessé d’être partie à la Convention européenne des droits de l’homme. Avant d’examiner les conséquences possibles de cet événement considérable, il faut rappeler les relations tumultueuses entre cet État et le Conseil et la Cour et décrire le processus complexe qui a conduit à la sortie de la Russie du système européen de protection des droits et libertés.
Accès à des documents classifiés, sécurité nationale et recherche historique : le secret d’État en équilibre(s)
Authors: Rosoux Géraldine 
Published: February 2023

Appliquant, à l’égard de documents classifiés, les principes établis par l’arrêt de Grande Chambre Magyar Helsinki Bizottság concernant l’accès à l’information d’intérêt public, l’arrêt Šeks de la Cour européenne des droits de l’homme avalise le point d’équilibre – dont le secret constitue l’enjeu – dégagé par les autorités nationales croates. Du point de vue matériel, cette affaire illustre la mise en balance de deux intérêts bénéficiant d’un haut degré de protection dans le droit de la Convention : d’une part, la sécurité nationale et, d’autre part, la recherche historique. Du point de vue procédural, une procédure nationale contradictoire doit permettre de contester le refus d’accès, pour un motif lié à la sécurité nationale, même si l’exigence de motivation du refus se révèle atténuée.
L’enregistrement du nouveau sexe de la personne transgenre
Authors: Gallus Nicole 
Published: February 2023

Selon la Cour européenne des droits de l’homme, la reconnaissance de la conversion sexuelle de la personne transgenre par une annotation en marge de son acte de naissance et non pas par l’établissement d’un nouvel acte ne constitue pas une violation des articles 8 et 14 de la Convention européenne des droits de l’homme. En effet, cette modalité réalise un juste équilibre entre le droit au respect de la vie privée de la personne concernée et les exigences de sécurité publique de l’enregistrement de l’état civil.
The ethical principles and caring behavior of Indonesian nurses
Authors: Ilkafah Ilkafah , Tyas Anestasia Pangestu Mei , Rachmawaty Rini 
Published: February 2023

Introduction: The caring behavior of nurses affects their working performance and the health care quality received by patients. The adherence to ethical principles by nurses is also known to increase this factor. However, no previous studies have been conducted on how ethical principles affect the caring behaviors of nurses. Hence, this study aims to investigate the association between nursing ethics and other demographic characteristics and their caring behavior in Indonesian hospitals.
Design and Methods: A cross-sectional descriptive-analytical study was conducted with 389 nurses working in Indonesian hospitals. Furthermore, data were collected using questionnaires, which included demographic characteristics, ethical principles-based attitudes, and caring behavior. The analysis of the data was performed using descriptive (M, SD) and inferential statistics (Chi-square, Spearman’s rank correlation, Fisher’s exact test, and multiple logistic regression) with α= 0.05.
Results: According to this study, the caring behavior of nurses was associated with gender (p=0.030) and nursing ethical principles, such as veracity (p=0.025), non-maleficence (p=0.007), beneficence (p<0.000), and fidelity (p<0.000). Fidelity was also revealed as the most influential ethical principle on nurses’ caring behavior, with a value of Exp(B)= 3.446. This indicates that nurses, who had demonstrated good fidelity, cared three times more than those who lacked this quality.
Conclusions: Nurses with good ethical principles deliver suitable caring behavior. Hence, applying the right ethics to a patient would result in a great caring attitude, as the principle of ethical behavior is compassion and respectful conduct towards patients.
Strategies to improving patient safety in hospitals
Authors: Taji Mohamad , Putra Kuswantoro Rusca , Ismail Dina Dewi Sartika Lestari 
Published: February 2023

Introduction: Patient safety is the initial foundation of quality healthcare that shared responsibility between policymakers as well as healthcare delivery, especially nurses, who aim for improvement. Interventions in patient safety culture reduce safety incidents, thereby, lowering the disability rates and deaths due to side effects of healthcare delivery. Therefore, this research aims to provide an overview of strategies to improve patient safety culture, which involves nurses in hospital settings.
Design and Methods: In this research, a Scoping review was carried out using online database searches at ProQuest, Ebsco, and Sciencedirect. The selected article was experimental research, using English, published between 2011-2021, and fulfilled the criteria for inclusion and exclusion set.
Result: In the initial disbursement, 480 articles were obtained with 13 studies that meet the inclusion criteria. The articles obtained used quasi-experimental research methods (2 articles), pre-post intervention design (4 articles), intervention time series (2 articles), randomized controlled trial (1 article), prospective cohort intervention (1 article), repeated cross-sectional experimental research (1 article), Mix quasi-experimental method non-randomized design and qualitative (1 article), and control groups (4 articles). Based on the articles obtained, the strategies to increase the patient safety culture in hospitals can be categorized into 4, which include educational, simulation, team, and comprehensive programs.
Conclusions: All interventions implemented possess a positive impact on patient safety culture.
The effectiveness of nursing psychoeducation toward family burden and quality life on caregiver of people with schizophrenia in the community
Authors: Suharsono Suharsono , Faidah Noor , Hanafi Moh 
Published: February 2023

Introduction: The caregivers of people with schizophrenia have problems that include high family, burden and low quality of life at home. Therefore, this study aims to determine the effectiveness of nursing psychoeducation on family, burdens and quality of life in caregivers of schizophrenia patients in the community.
Design and Methods: This study used a pre-test and post-test group control design and repeated measurement with a total of 100 respondents. The treatment group was given weekly nursing psychoeducation for seven sessions. Also, the general linear model (GLM) was used to analyze the result.
Results: This study showed that before the intervention of nursing psychoeducation, the average family burden was 49,02 and 46.28 in the treatment and control groups, respectively. This decreased to 38.24 and 37.56 in the first and fourth weeks of posttreatment. Meanwhile, the control group was 44.86 in the first week and 45.62 in the fourth. The psychoeducation had an effect on decreasing the family burden with a p value < 0.001. Moreover, this study showed that before the intervention of nursing psychoeducation, the average caregiver quality of life was 75,72 and 74.24 in the treatment. After treatment, it increased to 91.22 in the first week after intervention and 92.54 in the fourth week of post-intervention. Therefore, the intervention effectively improved the caregiver quality of life with p < 0.001
Conclusions: Nursing psychoeducation can effectively reduce family burdens and improve the quality of life for caregivers.
Comparative Evaluation of Cleaning Efficacy of Self-adjusting File and WaveOne File
Authors: Bakthavatchalam Balakrishnan , Ranjani Muthukrishnan Sudharshana , Amudhalakshmi Krishnan 
Published: February 2023

Aim:
This study aims to compare the cleaning efficacy of root canal walls using two rotary single file systems: self-adjusting file (SAF) and WaveOne (WO).

Materials and Methods:
Forty extracted human premolars with similar range of canal curvature were selected, decoronated, working length determined and roots were divided into two groups of 20 samples each: Group I - SAF and Group II - WO. All root canals were irrigated with 3% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA). The roots were sectioned longitudinally and subjected to scanning electron microscopic examination. The amount of debris and smear layer was evaluated using five score index at coronal, middle and apical third levels. Statistical analysis was performed using the Chi-square test and significance was set at a P < 0.05.

Results:
Statistically significant difference was observed between the groups in cleaning the apical third. Group I (SAF) showed better canal cleanliness compared to Group II (WO) in the apical third.

Conclusion:
Within the limitations of this study, SAF in combination with 3% NaOCl and 17% EDTA irrigating solution had significantly better cleaning efficacy in the apical third of root canals when compared to WO rotary file system.
A Comparative Evaluation of Efficacy of Gingival Retraction Using Polyvinyl Siloxane Foam Retraction System, Vinyl Polysiloxane Paste Retraction System, and Copper Wire Reinforced Retraction Cord in Endodontically Treated Teeth
Authors: Mehta Sonal , Virani Hemali , Memon Sarfaraz , Nirmal Narendra 
Published: February 2023

Purpose of the Study:
The purpose of the study is to evaluate the efficacy of three gingival retraction systems such as polyvinyl siloxane foam retraction system (magic foam cord; Coltene/WhaledentInc), polysiloxane paste retraction system (GingiTrac; Centrix), and aluminum chloride impregnated twisted retraction cord (Stay-Put; Roeko) in endodontically treated teeth.

Materials and Methods:
Patients who were endodontically treated for molars and requiring crown for the same, were selected for the present study with sample size of 45. The 45 participants were divided into three groups. Group 1 was treated with Stay-Put, Group 2 with Magic Foam, and Group 3 with GingiTrac. About 90 elastomeric impressions of the participants were taken—45 impressions before retraction and 45 impressions after retraction. The sulcus width was measured on the die obtained from the elastomeric impressions by placing the dies under OVI-200 optical microscope in combination with X soft imaging system software attached to a computer.

Results:
The study indicated 0.465627 mm ± 0.063066 mm of gingival retraction for aluminum chloride impregnated retraction cord, 0.210993 mm ± 0.067358 mm of gingival retraction for GingiTrac paste, and 0.294147 mm ± 0.056697 mm of gingival retraction for magic foam cord.

Conclusion:
The study data indicated that the new retraction systems are not as effective as the standard retraction cord; however, of the two new systems the Magic Foam system did prove to be effective enough for clinical use. The GingiTrac system failed to achieve the minimum gingival retraction required and hence may not be suitable for clinical use.
Degree of Conversion and Polymerization Shrinkage of Low Shrinkage Bulk-Fill Resin Composites
Authors: Salem Haidy N. , Hefnawy Sherif M. , Nagi Shaymaa M. 
Published: February 2023

Background:
The effectiveness of each resin composite material composition in enabling homogeneous monomer conversion and reducing polymerization shrinkage (PS) is an important issue. Thus, this study aimed to evaluate the degree of conversion (DC) and PS of low-shrinkage bulk-fill composites (BFCs) in 4-mm thickness.

Materials and Methods:
Four bulk fill (Tetric EvoCeram Bulk Fill, Sonic Fill, XTra Fill, and Venus Bulk Fill) and one conventional (Filtek Z350 XT) resin composites were tested in this study. Teflon molds of 4-mm depth were used to prepare resin composite specimens. All tested resin composites were packed in bulk then light cured for the recommended time by their manufacturers. DC% was determined by Fourier transform infrared spectroscopy; PS was determined using the strain gauge method. Data were subjected to one-way ANOVA/Tukey's test (α = 0.05).

Results:
DC% results were as follows: Venus Bulk Fill > XTra Fill > Sonic Fill > Tetric EvoCeram Bulk Fill > Filtek Z350 XT with a significant difference between each others at P ≤ 0.001. For PS %, significant difference resulted between tested groups at P ≤ 0.001. Where Venus Bulk Fill < XTra Fill = Sonic Fill < Tetric EvoCeram Bulk Fill < Filtek Z350 XT.

Conclusions:
Low-shrinkage resin monomers seem to be beneficial for reducing PS with enhancement in the DC. Increased filler loading in BFCs had a positive effect on reducing PS, while its effect on the DC was material dependent.
Salivary Interleukin-6 Levels among Polycystic Ovary Syndrome Patients with and Without Chronic Periodontitis – A Comparative Study
Authors: Varghese Arun , Balu Pratebha , R Saravanakumar , Muthu Jananni , Vineela K. 
Published: February 2023

Background:
Periodontitis is associated with various systemic diseases one of which is poly cystic ovarian syndrome (PCOS). PCOS is a genetically complex endocrinopathy of uncertain etiology affecting women of the reproductive age group which results in the most common cause of anovulatory infertility, menstrual dysfunction, and hirsutism. PCOS has a close association with cardiometabolic risk profile, insulin resistance (IR), hyperinsulinemia, central obesity, dyslipidemia, and increasing the prevalence of cardiovascular risk factors. The common pathway is the chronic low-grade inflammation which is constituted by pro-inflammatory cytokine interleukin (IL)-6.

Aim:
The aim of the study was to compare salivary IL-6 levels among polycystic ovary syndrome (PCOS) patients with and without chronic periodontitis.

Materials and Methods:
Newly diagnosed PCOS patients were selected for the study, and the periodontal parameters were recorded. Group A consists of 42 patients of PCOS with periodontitis and Group B consists of 42 patients of PCOS without periodontitis. Salivary levels of IL-6 were compared between the two groups and were assessed by enzyme-linked immunosorbent assay kit (bioassay).

Results:
The mean pocket depth in Group A was 4.23 ± 0.134 and that of Group B was 1.30 ± 0.06. The mean bleeding on probing in Group A was 1.40 ± 0.40 and in Group B it was 0.91 ± 0.18. The mean clinical attachment level in Group A was 4.87 ± 0.124 and that of Group B was 1.30 ± 0.06. The mean difference in clinical parameters was statistically significant between the groups (P ≤ 0.001). IL-6 level in group A is 102.59 ± 18.2 and in Group B it was 51.3 ± 25.3.

Conclusion:
Salivary IL-6 levels show a double-fold increase in PCOS with periodontitis than in PCOS without periodontitis. This study reflects the importance of periodontal health and the prevention of periodontal disease so as to minimize IR in PCOS patients with periodontitis.