bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Radio Quasi-periodic Oscillation of 176 days in the Radio-loud Narrow-line Seyfert 1 Galaxy J0849+5108
Authors: Zhang Pengfei , Wang Zhongxiang 
Published: June 2021

Abstract
We analyze the 11 yr long-term light curve of the Radio-loud Narrow-line Seyfert 1 galaxy J0849+5108 and the nearly simultaneous γ-ray data of the source. The data were obtained with the Owens Valley Radio Observatory 40 m telescope at 15 GHz and with the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope, respectively. A quasi-periodic oscillation (QPO) signal at a significance of >5σ is found in the radio light curve, but no similar modulation is seen in the γ-ray light curve. The QPO signal was present for 21 cycles, the longest among the reported radio QPOs, and likely disappeared after 2019 January 16. Different mechanisms proposed to explain the observed QPOs in active galactic nuclei (AGNs) are discussed for this QPO case. Either a secular instability in the inner accretion disk or a helical structure in the jet of J0849+5108 may explain the radio QPO, while for the latter scenario the jet has to be collimated up to ∼200 pc, similar to that seen in the nearby AGN M87. It will be of interest to keep monitoring the source at radio frequencies, seeing whether similar QPO signals appear again.
Formation of an Extended Stellar Halo around an Ultra-faint Dwarf Galaxy Following One of the Earliest Mergers from Galactic Building Blocks
Authors: Tarumi Yuta , Yoshida Naoki , Frebel Anna 
Published: June 2021

Abstract
Ultra-faint dwarf galaxies (UFDs) are promising observable proxies to building blocks of galaxies formed in the early universe. We study the formation and evolution of UFDs using cosmological hydrodynamic simulations. In particular, we show that a major merger of two building block galaxies with 3900 M
⊙ and 7500 M
⊙ at the cosmic age of 510 Myr results in a system with an extended stellar distribution consistent with the de Vaucouleurs profile. The simulated galaxy has an average stellar metallicity of [Fe/H] = −2.7 and features a metallicity gradient. These results closely resemble the properties of a recently discovered UFD, Tucana II, which is extremely metal-poor and has a spatially extended stellar halo with the more distant stars being more metal-poor. Our simulation suggests that the extended stellar halo of Tucana II may have been formed through a past major merger. Future observational searches for spatially extended structures around other UFDs, combined with further theoretical studies, will provide tangible measures of the evolutionary history of the ancient, surviving satellite galaxies.
ALMA View of the ρ Ophiuchi A PDR with a 360 au Beam: The [C i] Emission Originates from the Plane-parallel PDR and Extended Gas
Authors: Yamagishi Mitsuyoshi , Shimajiri Yoshito , Tokuda Kazuki , Kawabe Ryohei , Nakamura Fumitaka , Kamazaki Takeshi , Nomura Hideko , Takekoshi Tatsuya 
Published: June 2021

Abstract
We present the results of data analysis of the [C i] (3
P
1–3
P
0) emission from the ρ Ophiuchi A photon-dominated region (PDR) obtained in the ALMA ACA standalone mode with a spatial resolution of 2.″6 (360 au). The [C i] emission shows filamentary structures with a width of ∼1000 au, which are adjacent to the shell structure seen in the 4.5 μm map. We found that the 4.5 μm emission, C0, and CO are distributed in this order from the excitation star (S1) in a complementary pattern. These results indicate that [C i] is emitted from a thin layer in the PDR generated by the excitation star, as predicted in the plane-parallel PDR model. In addition, extended [C i] emission was also detected, which shows nearly uniform integrated intensity over the entire field of view (1.′6 × 1.′6). The line profile of the extended component is different from that of the above shell component. The column density ratio of C0 to CO in the extended component was ∼2, which is significantly higher than those of Galactic massive star-forming regions (0.1–0.2). These results suggest that [C i] is emitted also from the extended gas with a density of

cm−3, which is not greatly affected by the excitation star.
The Effect of Dense Cluster Environments on Galactic Properties
Authors: Cronk Ethan , Bayliss Matthew B. , Kim Keunho 
Published: June 2021

Abstract
Galaxy clusters are extremely over dense regions of the universe and are therefore ideal for testing how galaxy properties vary with environment. We analyze a sample of >3000 galaxy spectra from 100 galaxy cluster fields, and examine trends in redshift, Dn4000, and a formulated in-fall proxy for member and non-member galaxies. The 4000 Å break (Dn4000) reveals information about the age of each galaxy, and the product of the normalized peculiar velocity and the normalized projected radius of each cluster galaxy serves as a proxy for in-fall time, or how recently each galaxy became gravitationally bound to its cluster. We see a relationship between Dn4000 and the in-fall proxy, with more recently in-fallen galaxies being systematically younger; we interpret this trend as the effect of environmental quenching of cluster galaxies. Furthermore, we see a trend in which all cluster galaxies become older with decreasing redshift, independent of in-fall proxy.
Cytokines profiles in cervical mucosa in patients with cervical high-risk human papillomavirus infection
Authors: Long De-Lai , Song Hua-Lin , Qu Peng-Peng 
Published: June 2021

Introduction: The purpose of this study was to detect the expression of local cytokines in cervical mucosa between patients with transient and persistent HR-HPV infection with or without CIN.
Methodology: A total of 150 patients who were diagnosed as HR-HPV infection in Tianjin Central Hospital of Obstetrics and Gynecology from January 2016 to December 2016 were included in this study. The expression levels of 9 cytokines in 150 patients with HR-HPV infection, including interleukin (IL)-1β, IL-4, IL-6, IL-8, IL-10, IL-12, IL-12p70, IL-21, interferon (IFN)-γ and tumor necrosis factor (TNF)-α, were simultaneously measured by using a multiplex immunoassay. Moreover, HR-HPV genotype was performed by using pyrosequencing. The association between cytokines and HPV genotype was also investigated.
Results: There was a statistically significant difference in IL-1β level between patients with HPV transient infection and HPV persistent infection (p = 0.041). There were statistically significant differences in the levels of IL-1β, IL-10, IL-21 and TNF-α between patients with low grade squamous intraepithelial lesion (LSIL) and high grade squamous intraepithelial lesion (HSIL) (p = 0.011, p = 0.008, p = 0.046 and p = 0.019, respectively).
Conclusions: Pro-inflammatory cytokines, IL-1β and TNF-α, and Th2 type cytokines, IL-10 and IL-21, became stronger in cervical mucosa with the progression of CIN. IL-1β may be advantageous for HR-HPV persistent infection.
Bovine tuberculosis due to Mycobacterium bovis and other mycobacteria among water buffalo (Bubalus bubalis) from the Brazilian Amazon
Authors: Da Silva Pedroso Silvia Cristina , Batista Lima Karla Valéria , Perini Furlaneto Ismari , Corrêa Rodrigues Yan , Saraiva Queiroz Pantoja Darlene Kássia , Souza de Souza Alex Junior , Assunção Pereira Washington Luiz 
Published: June 2021

Introduction: Zoonotic tuberculosis is a disease of public health importance worldwide, especially in developing countries. The present study aimed to investigate the role played by Mycobacterium bovis and other mycobacteria as etiologic agents of bubaline tuberculosis (TB) in the Brazilian Amazon region.
Methodology: Granulomatous lesions suggestive of TB obtained from 109 buffaloes (n =109) during sanitary inspection at slaughter were subjected to histopathological evaluation, immunohistochemical (IHC) detection of Mycobacterium antigens, and to molecular tests (PCR) to detect hsp65, IS6110 and RD4 genes, which are specific to Mycobacterium spp., Mycobacterium tuberculosis Complex (MTBC) and M. bovis, respectively.
Results: PCR results indicated Mycobacterium infection in 87.2% of the cases, of which 69.5% were positive for M. bovis, 27.4% belonged to MTBC, and 3.1% were probably non-TB mycobacteria. There was good agreement between the genus-specific molecular technique and the histopathological analysis. This high frequency of TB cases caused by non-M. bovis suggests a diversified scenario of mycobacteria associated with bubaline TB in the Brazilian Amazon region.
Conclusions: The results reinforce the need of discussing the inclusion of more accurate techniques in examinations carried out by Inspection Services in Brazil.
Kawasaki like illness due to COVID-19: a review of the literature
Authors: Fang Yulin , Aravamudan Veeraraghavan Meyyur , Sridharan Gurusaravanan Kutti , Mehta Keyur Kamlesh , Sekhar Ramkumar , Senguttuvan Nagendra Boopathy , Venkatachalam Indumathi , Abid Muhammad Bilal 
Published: June 2021

Introduction: Viral infections have been described as triggers for Kawasaki Disease (KD), a medium vessel vasculitis that affects young children. Akin to the H1N1 pandemic in 2009, there is a similar rise in the incidence of KD in children affected with Coronavirus disease 2019 (COVID-19). Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) has been reported to induce an exaggerated systemic inflammatory response resulting in multi-organ involvement, particularly initiated with pulmonary parenchymal damage. This review article will discuss KD-like manifestations in COVID-19 patients in the pediatric cohort.
Methodology: Search terms “Kawasaki” “COVID-19” “SARS-COV-2” “PIM-TS” and “MIS-C” were used to look for relevant articles in PubMed and Google Scholar published in the last 5 years.
Results: There is some evidence to suggest that SARS-CoV-2 stimulates dysfunctional and hyperactive immune reactions mimicking KD in young patients.
Conclusions: Therapeutic options, both investigational and repurposed, include intravenous immunoglobulins, steroids and anticoagulation. More studies are required to evaluate the effectiveness of these treatment options.
Semen Analysis and Insight into Male Infertility
Authors: Mahdi Batool Mutar 
Published: June 2021

Objectives: Semen analysis is the cornerstone for the valuation of the male partner in the infertile couples. This test has been standardized throughout the world through the World Health Organization (WHO) since the1970s by producing, editing, updating, and disseminating a semen analysis manual and guidelines. A retrospective study to give an insight about male infertility. Methods: This retrospective study assessed the semen findings of 1000 men evaluated at the Department of Urology, Al-Kindy Teaching Hospital in Baghdad-Iraq between January 2016 and May 2019. Semen analysis were done for them. Results: According to WHO standard for semen normality, 1000 samples that were analyzed, normospermia was shown in 835 (83.5%)males (95% CI=0.811-0.857) and 12% had oligospermia and the rest 4.5% was azospermia. The normospermic samples had significantly higher levels regarding the following parameters: count per ml (51.30±1.24) (P= 0.001), volume(3.34±2.31)(P=0.0001), pus cell (8.04±1.02)(P=0.0001), motility (22.81±5.8)(P=0.0001), abnormal motility (22.81±5.8)(P=0.0001) and normal (V)(P=0.0001)or abnormal morphology (25.86 ±12.4)(P=0.0002) when compared with oligospermia. Conclusions: Semen analysis is the keystone of infertile couple. Semen parameters like sperm concentration, motility and morphology, are indicators for male reproductive function. Sperm concentration is declining and there is a significant association between sperm concentration and sperm parameters.
Histology of hematoxylin–eosin and immunohistochemical diabetes rat pancreas after giving combination of moringa leaves (Moringa oleifera) and clove flower (Syzygium aromaticum) extracts
Authors: Ningsih Purnama , Sitti Rahmawati  , Hamzah Baharuddin , Santoso Tri , Nurbaya Nurbaya , Hardani Muhammad Fakhrul , Hardani Ririen 
Published: June 2021

The purpose of this study was to determine the regeneration activity of pancreatic beta cells by a combination of the ethanol extracts of Moringa leaves and Clove flower. These extracts prepared by maceration with ethanol as solvent . This is an experimental laboratory research by using post test only group design . The subject of this research is 40 white male rats of Wistar strain ( Rattus norvegicus ) and were conditioned DM by streptozotozine-nicotinamide induction . The rats randomly divided into 8 groups , and each group consisted of 5 rats . Combination dose of Moringa leaves and Clove flowers extracts used are 150 : 40 mg / kg body weight of mice , 100 : 80 mg / kg body weight of mice and 50 : 120 mg / kg body weight of mice . The rats were sacrificed and the pancreas taken to be made preparations histopathology , staining and observation tissues with HE and IHC methods. The results showed that the staining and observation tissues of heart with HE method acquired the positive control group , the single test group and the combination group were showing the islet on the Langerhans island of the pancreas is bigger than in the negative control group. The morphology of the island of Langerhans increasingly large indicates increasing the regeneration of the cells of the islet beta pancreas; whereas the method of IHC acquired the negative control group seen lack of display intensity of positive reaction Ag & Ab beta cells with are marked with brown cells . In the positive control group , the single test group and the combination group , seen a positive reaction of Ag & Ab insulin-producing beta cells characterized by brown cells and insulin expression dominating pancreatic island of Langerhans.
Evaluation of Early Renal Allograft Dysfunction from Living Donors among Egyptian Patients (Histopathological and Immunohistochemical Study)
Authors: Emad El-dein Maha , Fadda Sawsan A. A. , Gabal Samia M. , Shaker Amr M. , Mohamad Wael M. 
Published: June 2021

BACKGROUND: Early renal graft dysfunction is a major problem in the early post-transplantation period and is considered a major cause of graft loss. Clinical diagnosis based on the clinical criteria alone is unreliable; therefore, biopsy remains the gold standard to differentiate between rejection and non-rejection causes. AIM: This study was designed to identify and differentiate between causes of early graft dysfunction during the first post-transplantation month and to correlate between histological lesions and immunohistochemistry (IHC) for accurate diagnosis and a better outcome. MATERIALS AND METHODS: A total of 163 renal allograft biopsies, performed in the first post-transplantation month over 6 years, were included in the study. New sections were prepared from the paraffin blocks and stained with conventional stains. Additional sections were prepared and treated by complement fragment 4d (C4d) and cluster differentiation 3 (CD3) antibodies for IHC evaluation. RESULTS: All the studied cases were from living donors. The mean patient age was 39 years with predominant males. The clinical indication for most biopsies (94.5%) was impaired graft function. Acute rejection (AR) was the main diagnostic category observed in (98/163, 60.1%); out of which, T cell-mediated rejection (TCMR) was observed in (62/98, 63.2%). Drug toxicity was suspected in (53/163, 32.5%), acute tubular injury (ATI) not otherwise specified (nos) in (21/163, 12.9%), and other lesions including thrombotic microangiopathy were observed in the remaining biopsies. The most common cause of graft dysfunction in the 1st and 2nd weeks was AR representing. A significant correlation was seen between mild glomerulitis (g1) and mild peritubular capillaritis (PTC) 1, on the one side, and negative C4d staining, on the other side. No significant correlation was seen between moderate glomerulitis (g2) and moderate ptc2 at one side and positive C4d staining at the other side reflecting the poor association between the microvascular inflammation (“g” and “ptc” scores) and C4d positivity (r = 0.2). Missed mild tubulitis (t1) was found in a single case and missed moderate tubulitis (t2) was found in a single case detected by CD3 IHC. CONCLUSION: AR and drug toxicity account for the majority of early graft dysfunction, however, other pathological lesions, per se or coincide with them may be the cause. The significance of g2 per se as a marker for diagnosis of antibody-mediated rejection requires further study. Considering C4d score 1 (by IHC) positive; also requires further study with follow-up.
Se lire soi-même pour lire les autres : éthique du care , autoréflexivité et responsabilité épistémique
Authors: Boldrini Miranda 
Published: June 2021

Cet article entend mettre en lumière la place que deux notions, celle d’« autoréflexivité » et celle de « responsabilité épistémique », peuvent assumer dans une réflexion portant sur les limites de notre lecture des autres et de leurs besoins, à l’intérieur d’une éthique du care . Ces deux notions seront abordées telles qu’elles émergent chez trois philosophes : Miranda Fricker, bell hooks et Iris Murdoch. Ces auteures proposent en effet, chacune à leur manière, une pensée des limites de la connaissance des autres, où ces limites sont pensées en lien avec la conception de soi de l’individu connaissant. Ainsi, on s’interrogera sur la possibilité de considérer l’« autoréflexion » et la « responsabilité épistémique » comme des manières moralement appropriées de répondre aux limites caractérisant notre lecture des autres, en ce qu’elles éclairent le travail sur soi nécessaire pour lire les autres avec soin.
Démocratiser, émanciper, libérer le travail : enjeux politiques en Europe occidentale, du XIX e au XXI e siècle
Authors: Cukier Alexis 
Published: June 2021

Ce texte propose de distinguer trois types de projet politique de transformation du travail au sein du mouvement ouvrier en Europe occidentale : la démocratisation de l’organisation du travail, l’émancipation de la division sociale du travail, la libération du procès de travail. Il revient d’abord sur trois auteurs du XIX e siècle qui ont contribué à définir ces positions : Pierre-Joseph Proudhon, Paul Lafargue et Karl Marx, puis analyse certains des enjeux contemporains de ces distinctions, concernant l’articulation entre luttes syndicales, féministes, antiracistes et écologistes.
« Il faut une théorie de la coopération, du travail vivant individuel et collectif. »
Authors: Dejours Christophe , Cottin-Marx Simon , Le Lay Stéphane 
Published: June 2021

Dans cet entretien, Christophe Dejours revient sur les raisons historiques qui ont façonné l’impensé politique de l’organisation du travail : du côté des employeur·ses, captation scientifique par les ingénieurs du thème de l’organisation du travail ; du côté des travailleur·ses, faiblesse militante et philosophique d’une conception robuste de la coopération. Christophe Dejours dégage les conditions d’apparition et de préservation d’un travail vivant. Il souligne ainsi l’importance d’espaces délibératifs autour de l’activité partagée, espaces qui doivent être nourris moins d’attitudes psychologiques, d’empathie et de bienveillance à l’égard des travailleur·ses que d’une véritable connaissance de l’activité de travail, des exigences épistémiques de la coopération. Une science du travail doit être remise au centre de la lutte pour la politisation de son fonctionnement.
Que font les profs ?
Authors: Coutrot Thomas 
Published: June 2021

De 2001 à 2012, le Syndicat national de l’enseignement secondaire et l’équipe de psychologie du travail et de clinique de l’activité fondée par Yves Clot ont mené une importante recherche-action auprès des enseignant·es. Il s’agissait de faire émerger le « travail réel » réalisé au sein des classes afin de permettre aux enseignant·es d’en prendre conscience, de se le réapproprier et de fonder des transformations et des revendications à partir de la réalité de l’activité. Cette expérience a produit une mine d’informations mais a eu peu d’effet sur les pratiques syndicales. Thomas Coutrot fait l’hypothèse que ceci s’explique par l’évitement, au nom du maintien d’une façade d’unité du métier, des débats politiques sur les finalités du travail éducatif, et en particulier sur la division autoritaire ou démocratique du travail entre professionnel·les et destinataires – prendre en compte ou pas l’activité des élèves dans la relation pédagogique, au-delà des détournements néolibéraux de quelques « trucs » des pédagogies actives.
Le rapport subjectif au travail dirigé par les algorithmes. Être livré à soi-même sur une plateforme capitaliste
Authors: Lemozy Fabien , Le Lay Stéphane 
Published: June 2021

À partir d’une enquête en psychodynamique du travail auprès de livreur·ses de plateformes allégées de travail, les deux auteurs montrent que si l’imaginaire social véhiculé par les plateformes de livraison en appelle à la subjectivité des travailleur·ses quand elle s’adresse à elleux, le rapport subjectif au travail est en réalité entravé par l’organisation du travail, essentiellement dirigée par des algorithmes. L’action d’une forme de management désincarné renforce les processus de domination au travail d’une manière inédite : en mettant en jeu la passion pour l’autonomie et le désir de liberté, il peut finalement s’avérer dangereux pour la santé des livreur·ses, lorsque leurs croyances et leur investissement psychique sont finalement déçus.
« Les faictz sont masles, les parolles femelles » : entre le Vocabulista (1542) et le Berlaimont (1558), la piquante répartie de la Bonne response a tous propos (1547)
Authors: Cézard-Leyral Marie 
Published: June 2021

Dans un contexte européen particulièrement favorable au polyglottisme, les langues française et italienne sont l’objet d’ouvrages dont le genre n’est pas encore normé, pas plus que ces langues elles-mêmes ne sont codifiées. En considérant trois parutions du milieu du xvi e siècle, l’article interroge les spécificités du recueil de formules intitulé Bonne response à tout propos (1547), au regard de deux autres publications convoquant ces langues romanes voisines : le lexique dénommé Vocabulista (1542) et le manuel d’apprentissage plurilingue qu’est le Berlaimont (1558). Si aucune filiation stricte ne lie ces écrits, tous trois jouent des rôles à la fois spécifiques et complémentaires dans l’acquisition et le rayonnement de ces vernaculaires émergents.
Peut-on encore aimer les Amours de la Renaissance ? La hantise des abus sexuels dans l’étude de la poésie
Authors: Bayrou André 
Published: June 2021

Qu’on s’en félicite ou qu’on le déplore, l’horizon d’attente que nous avons présent à l’esprit en étudiant collectivement la littérature amoureuse à l’université ou à l’école fait une place croissante aux abus sexuels que les auteurs classiques sont soupçonnés d’encourager. En revenant sur des controverses critiques, on montre que les lectures à charge ne datent pas d’hier et reposent sur le choix de traduire le langage poétique en termes crus, pour en souligner la misogynie. À l’inverse, on rappelle le rôle important du public féminin dans la formation du genre des Amours , et on propose de commenter cette poésie sans la verrouiller sur un désir sexuel masculin, mais en nous rendant sensibles à ses subtilités, à sa polyphonie, à sa liberté fictionnelle, qui permettent à des lectrices et des lecteurs très divers de se l’approprier.