bluuebunny/crossref_metadata_2025_split huggingface dataset:
Planetesimal Dynamics in the Presence of a Giant Planet
Authors: Guo Kangrou , Kokubo Eiichiro 
Published: August 2021

Abstract
Standard models of planet formation explain how planets form in axisymmetric, unperturbed disks in single star systems. However, it is possible that giant planets could have already formed when other planetary embryos start to grow. We investigate the dynamics of planetesimals under the perturbation of a giant planet in a gaseous disk. Our aim is to understand the effect of the planet’s perturbation on the formation of giant planet cores outside the orbit of the planet. We calculate the orbital evolution of planetesimals ranging from 1013 to 1020 g, with a Jupiter-mass planet located at 5.2 au. We find orbital alignment of planetesimals distributed at ≃9–15 au, except for the mean motion resonance (MMR) locations. The degree of alignment increases with increasing distance from the planet and decreasing planetesimal mass. Aligned orbits lead to low encounter velocity and thus faster growth. The typical velocity dispersion for identical-mass planetesimals is

∼

(
10
)

m

s

−
1

except for the MMR locations. The relative velocity decreases with increasing distance from the planet and decreasing mass ratio of planetesimals. When the eccentricity vectors of planetesimals reach equilibrium under the gas drag and secular perturbation, the relative velocity becomes lower when the masses of two planetesimals are both at the larger end of the mass spectrum. Our results show that with a giant planet embedded in the disk, the growth of another planetary core outside the planet’s orbit might be accelerated in certain locations.
A Five-Planet Resonant Chain: Reevaluation of the Kepler-80 System
Authors: MacDonald Mariah G. , Shakespeare Cody J. , Ragozzine Darin 
Published: August 2021

Abstract
Since the launch of the Kepler space telescope in 2009 and the subsequent K2 mission, hundreds of multiplanet systems have been discovered. The study of such systems, both as individual systems and as a population, leads to a better understanding of planetary formation and evolution. Kepler-80, a K dwarf hosting six super-Earths, was the first system known to have four planets in a chain of resonances, a repeated geometric configuration. Transiting planets in resonant chains can enable us to estimate not only the planets’ orbits and sizes but also their masses. Since the original resonance analysis and TTV fitting of Kepler-80, a new planet has been discovered whose signal likely altered the measured masses of the other planets. Here, we determine masses and orbits for all six planets hosted by Kepler-80 by direct forward photodynamical modeling of the light curve of this system. We then explore the resonant behavior of the system. We find that the four middle planets are in a resonant chain, but that the outermost planet only dynamically interacts in ∼14% of our solutions. We also find that the system and its dynamic behavior are consistent with in situ formation and compare our results to two other resonant chain systems, Kepler-60 and TRAPPIST-1.
Rovibrationally Resolved Photodissociation of AlH via Excited Electronic States
Authors: Qin Zhi , Bai Tianrui , Liu Linhua 
Published: August 2021

Abstract
Photodissociation processes are of great importance for modeling interstellar chemistry since it is a key destruction pathway for small molecules. Here, we present a detailed ab initio study of AlH photodissociation. Potential energy curves and transition dipole moments for AlH are obtained by using the internally contracted multireference configuration interaction method and the Davidson correction (icMRCI+Q), as well as the aug-cc-pV6Z basis set. Except for the X1Σ+, A1Π, and C1Σ+ states, five higher excited 31Σ+, 21Π, 31Π, 41Σ+, and 41Π states are considered in order to investigate the photodissociation pathways in the vacuum ultraviolet region. State-resolved cross sections of transitions from all the rovibrational levels of the X1Σ+ state to seven singlet excited states are computed for photon wavelengths ranging from 500 Å to the threshold. Photodissociation cross sections in local thermal equilibrium (LTE) are obtained at temperatures from 500 to 10,000 K. Applications of the LTE cross sections to compute photodissociation rates in the standard interstellar radiation field and blackbody radiation field are briefly discussed.
Total Solar Irradiance Variability on the Evolutionary Timescale and its Impact on the Earth’s Mean Surface Temperature
Authors: Shukure N. T. , Tessema S. B , Gopalswamy N. 
Published: August 2021

Abstract
The Sun is the primary source of energy for the Earth. The small changes in total solar irradiance (TSI) can affect our climate on the longer timescale. In the evolutionary timescale, the TSI varies by a large amount and hence its influence on the Earth’s mean surface temperature (T

s
) also increases significantly. We develop a mass loss dependent analytical model of TSI in the evolutionary timescale and evaluated its influence on the T

s
. We determined the numerical solution of TSI for the next 8.23 Gyr to be used as an input to evaluate the T

s
which formulated based on a zero-dimensional energy balance model. We used the present-day albedo and bulk atmospheric emissivity of the Earth and Mars as initial and final boundary conditions, respectively. We found that the TSI increases by 10% in 1.42 Gyr, by 40% in about 3.4 Gyr, and by 120% in about 5.229 Gyr from now, while the T

s
shows an insignificant change in 1.644 Gyr and increases to 298.86 K in about 3.4 Gyr. The T

s
attains the peak value of 2319.2 K as the Sun evolves to the red giant and emits the enormous TSI of 7.93 × 106 W m−2 in 7.676 Gys. At this temperature Earth likely evolves to be a liquid planet. In our finding, the absorbed and emitted flux equally increases and approaches the surface flux in the main sequence, and they are nearly equal beyond the main sequence, while the flux absorbed by the cloud shows the opposite trend.
A Giant Loop of Ionized Gas Emerging from the Tumultuous Central Region of IC 5063*
Authors: Maksym W. Peter , Fabbiano Giuseppina , Elvis Martin , Ho Luis C. , Oosterloo Tom , Ma Jingzhe , Travascio Andrea , Fischer Travis C. , Keel William C. 
Published: August 2021

Abstract
The biconical radiation pattern extending from an active galactic nucleus (AGN) may strongly photoionize the circumnuclear interstellar medium (ISM) and stimulate emission from the narrow-line region (NLR). Observations of the NLR may provide clues to the structure of dense material that preferentially obscures the bicone at certain angles, and may reveal the presence of processes in the ISM tied to AGN accretion and feedback. Ground-based integral field units may study these processes via well-understood forbidden diagnostic lines such as [O iii] and [S ii], but scales of ∼tens of parsecs remain challenging to spatially resolve at these wavelengths for all but the nearest AGN. We present recent narrow-filter Hubble Space Telescope observations of diagnostic forbidden ([O iii], [S ii]) and Balmer (Hα, Hβ) lines in the NLR of IC 5063. This AGN’s jet inclination into the plane of the galaxy provides an important laboratory for strong AGN–host interactions. We find evidence for a low-ionization loop which emits brightly in [S ii] and [N ii], and which may arise from plume-like hot outflows that ablate ISM from the galactic plane before escaping laterally. We also present spatially resolved Baldwin–Phillips–Terlevich diagnostic maps of the IC 5063 NLR. These maps suggest a sharp transition to lower-ionization states outside the jet path, and that such emission is dominated by ∼10–40 pc clumps and filamentary structure at large (≫25°) angles from the bicone axis. Such emission may arise from precursorless shocks when AGN outflows impact low-density hot plasma in the cross cone.
A Test of the Hadronic Origin of γ-Rays from Blazars with Follow-up up to a Month Later of IceCube Alerts with Imaging Air Cherenkov Telescopes
Authors: Fiorillo Damiano F. G. , Satalecka Konstancja , Taboada Ignacio , Tung Chun Fai 
Published: August 2021

Abstract
The sources of IceCube neutrinos are as yet unknown. The multimessenger observation of their emission in γ-rays can be a guide to their identification, as exemplified by the case of TXS 0506+056. We suggest a new method of searching for γ-rays with Imaging Air Cherenkov Telescopes from sources coinciding with possible astrophysical neutrinos. We propose that searches of γ-rays be extended from the current practice of only a few days to up to one month from a neutrino alert. We test this strategy on simulated sources modeled after the blazar TXS 0506+056, emitting neutrinos and γ-rays via photohadronic interactions: the γ-rays are subsequently reprocessed in the VHE range. Using MAGIC as a benchmark example, we show that current Cherenkov Telescopes should be able to detect γ-ray counterparts to neutrino alerts with a rate of approximately one per year. It has been proposed that the high-energy diffuse neutrino flux can be explained by ∼5% of all blazars flaring in neutrinos once every 10 yr, with a neutrino luminosity similar to that of TXS 0506+056 during the 2014–2015 neutrino flare. The implementation of our strategy could lead, over a timescale of one or a few years, either to the detection of this subclass of blazars contributing to the diffuse neutrino flux or to a constraint on this model.
Impact of Magnetorotational Instability on Grain Growth in Protoplanetary Disks. II. Increased Grain Collisional Velocities
Authors: Gong Munan , Ivlev Alexei V. , Akimkin Vitaly , Caselli Paola 
Published: August 2021

Abstract
Turbulence is the dominant source of collisional velocities for grains with a wide range of sizes in protoplanetary disks. So far, only Kolmogorov turbulence has been considered for calculating grain collisional velocities, despite the evidence that turbulence in protoplanetary disks may be non-Kolmogorov. In this work, we present calculations of grain collisional velocities for arbitrary turbulence models characterized by power-law spectra and determined by three dimensionless parameters: the slope of the kinetic energy spectrum, the slope of the autocorrelation time, and the Reynolds number. The implications of our results are illustrated by numerical simulations of the grain size evolution for different turbulence models. We find that for the modeled cases of the Iroshnikov–Kraichnan turbulence and the turbulence induced by the magnetorotational instabilities, collisional velocities of small grains are much larger than those for the standard Kolmogorov turbulence. This leads to faster grain coagulation in the outer regions of protoplanetary disks, resulting in rapid increase of dust opacity in millimeter wavelength and possibly promoting planet formation in very young disks.
The Ostrom Workshop: Artisanship and Knowledge Commons
Authors: Dekker Erwin , Kuchař Pavel 
Published: August 2021

Le présent article étudie le workshop animé, au sein de l’université d’Indiana, par Elinor et Vincent Ostrom, à partir des années 1970, comme un atelier, une fabrique collective et interdisciplinaire de savoirs. Il en retrace l’histoire, ainsi que les principales productions, en termes d’idées, d’artéfacts et d’infrastructures de recherche. Ces productions relèvent de trois procédés alternatifs de fabrication : la production en équipe, la coproduction et la production « liée ». La production en équipe, soit l’existence de collaborations scientifiques sur des projets communs, est largement mise en évidence dans la littérature. Nous montrons, cependant, que le positionnement extra-départemental du workshop, de même que son ethos de l’artisanat, l’ont grandement facilitée. La coproduction de savoirs a, quant à elle, été réalisée dans le cadre de partenariats actifs avec des collectivités autonomes ou des agences locales de fourniture de biens collectifs. Au-delà du simple audit des gouvernances existantes, ces collaborations avaient pour vocation de façonner avec les partenaires une gouvernance appropriée, respectueuse de l’esprit de coproduction de services publics défendu par les chercheurs du workshop Ostrom. Enfin, une production liée et cumulative de savoirs, sous forme de produits fatals, a conduit, au travers de projets de recherche individuels sur la gouvernance, à l’émergence progressive d’un langage conceptuel et d’un cadre d’analyse des institutions : l’IAD ( Institutional Analysis and Development ).
Entre administration et mémoire du crime : constitution et usages du registre du Papier Rouge de la mairie de Dijon à la fin du Moyen Âge
Authors: Beaulant Rudi 
Published: August 2021

Le registre du Papier Rouge contient plus de 400 sentences criminelles prononcées aux xiv e et xv e siècles par la mairie de Dijon, qui dispose des droits de haute justice sur le territoire urbain et sa proche banlieue en vertu de la charte de franchise accordée aux habitants par le duc Hugues III en 1183. Bien connu des historiens pour ses informations relatives à la criminalité réprimée dans la ville et à la diversité des qualités sociales des condamnés, il doit également être replacé dans le contexte de production de l’écrit dans la ville à la fin du Moyen Âge, et du contexte politique dijonnais en particulier. Si la création du Papier Rouge participe de l’essor administratif qui caractérise la commune au début du xv e siècle, une analyse fine des événements qui l’entourent montre que sa création répond à une finalité judiciaire mais aussi politique. Le croisement des sources, entre ce registre et ceux des délibérations ou encore les registres aux causes de la mairie et ceux des procureurs, permet par ailleurs de mieux suivre le cheminement de l’administration échevinale quant aux modalités de sa rédaction et à son organisation interne. Les enquêtes et procès de la justice échevinale soulignent encore que le Papier Rouge constitue un outil de contrôle social sur les habitants, car le fait d’y être inscrit peut réduire à néant la fama de l’individu. Enfin l’examen des procès juridictionnels entre la mairie et le duc de Bourgogne, puis le roi de France, explique les multiples annotations marginales du registre autant que les dessins de pendus. L’analyse de la vie du Papier Rouge et de ses usages permet ainsi de souligner ses rôles multiples tant sur le plan judiciaire, administratif, social que politique.
Dialogue historiographique et rapprochement diplomatique : le colloque franco-roumain d’histoire de Bucarest, 6-11 octobre 1969
Authors: Lemny Stefan , Hariuc Marian I. 
Published: August 2021

Le Colloque franco-roumain d’histoire qui s’est tenu à Bucarest du 6 au 11 octobre 1969 est un événement remarquable dans l’historiographie roumaine de la période communiste, grâce à la présence de plusieurs noms prestigieux de l’École des Annales . Fondée sur les archives privées des principaux organisateurs – Alphonse Dupont, pour la France, Andrei Oţetea, pour la Roumanie – cette étude propose une analyse de cette page d’histoire de l’historiographie. Les relations durables entre les deux historiens, leur influence considérable dans la communauté scientifique de leurs pays et leur dévouement pour mettre en place ce projet ont concouru à la réussite de ce prestigieux événement. L’importance du colloque dépasse pourtant le domaine strictement historiographique. En effet, il a donné aux chercheurs roumains l’occasion de s’ouvrir au dialogue international, en particulier avec leurs confrères français, dans les conditions du dégel des relations entre les deux blocs. Cette aspiration était d’autant plus ardente qu’elle se trouvait en décalage par rapport à leurs collègues des autres pays de l’Est, en particulier de Hongrie : ces derniers, bien plus actifs dans le dialogue avec les historiens de l’Ouest, avaient eu déjà plusieurs occasions d’exposer leurs interprétations sur les questions litigieuses du passé. Cette situation semble d’autant plus paradoxale que la Roumanie réalise à ce moment un grand virage sur la scène politique internationale, se rapprochant de l’Occident plus que les autres pays du bloc communiste. Deux événements ont profondément marqué ce virage : la visite du président De Gaulle en Roumanie, en 1968, et celle de Nicolae Ceauşescu en France, en 1970. Le colloque des historiens français et roumains s’inscrit dans ce processus de rapprochement diplomatique et culturel : il en est à la fois la conséquence et l’accélérateur de son développement. Il reste l’expression la plus prestigieuse de la collaboration historiographique franco-roumaine, bien que les résultats escomptés à plus long terme ne soient pas au rendez-vous, à cause de la nouvelle direction prise par une historiographie roumaine de plus en plus dominée par des impératifs idéologiques.
Des chemins qui ne se croisent pas ? Les itinéraires des élites et des humbles dans le royaume de France et sur ses marges à la fin du Moyen Âge
Authors: Dauphant Léonard 
Published: August 2021

À côté de la reconstitution des routes médiévales, l’étude de la culture routière permet de comprendre l’usage et le sens des infrastructures. Les sources littéraires mettent en évidence la dimension routière de l’espace vécu : les étapes des grands axes sont célèbres et fixent une mémoire de longue durée sous la forme de légendes routières. Cette culture de la route influence les représentations des élites royales, qui privilégient politiquement les grands axes au détriment des régions enclavées, ainsi en Auvergne. Le peuple participe-t‑il à cette hiérarchie routière ? On peut mettre en évidence des circulations populaires inattendues. Pendant la guerre de Cent Ans, le peuple circule là où on ne l’attend pas : rebelles normands et réfugiés du Bassin parisien circulent à l’écart des grandes routes et savent se rendre invisibles. Le peuple peut aussi ne pas circuler là où on l’attend. En Forez, les ponts ne sont pas utilisés par les villageois qui franchissent la Loire à gué. Les infrastructures sont ici construites à l’usage des élites. L’exemple des montagnes du Jura illustre finalement un contrôle des circulations populaires assez lointain : dans certains cas, les différentes classes sociales et métiers n’empruntent pas les mêmes routes.
Use of misoprostol before tandem application for intracavitary brachytherapy in patients of carcinoma cervix
Authors: Ali Tauseef , Palod Sahaj , Khan Aafreen , Verma Shalu , Gupta Sumit , Karnawat Saurabh , Bhandari Virendra 
Published: August 2021

Aim:
To investigate the ease of tandem application and external os identification by giving sublingual misoprostol before initiation of intracavitary brachytherapy in cancer cervix patients.

Materials and Methods:
36 patients with cervical cancer stage IIIB which were supposed to undergo intracavitary brachytherapy(ICBT) were randomly divided into 2 subgroups, group A patients receiving misoprostol and group B not receiving misoprostol. Misoprostol 400 mcg was given sublingually 3 hrs prior to the procedure. The efficacy of the drug was measured as per the ease of identification of os and easier tandem application and amount of bleeding during procedure.

Results:
Application of tandem and identification of external os was easier and amount of bleeding was also less in patients that were administered sublingual misoprostol.

Conclusion:
Sublingual Misoprostol given before ICBT helps in cervical ripening and thus leads to easier os recognition and central tandem application and reduce overall anaesthesia time.
Is hypermethylation of SOX1 gene an independent prognostic marker in surgically resected non-small cell lung cancer?
Authors: Kontic Milica , Jovanovic Dragana , Kern Izidor , Nelson Heather H , Bojic Svetlana , Ognjanovic Miodrag , Ognjanovic SImona 
Published: August 2021

Background:
Promoter hypermethylation of tumor suppressor genes presents promising markers for lung cancer diagnosis and prognosis. The purpose of this study was to determine the association between the promoter hypermethylation of multiple genes and 5-year survival rate in patients with Non-small cell lung cancer (NSCLC).

Materials and Methods:
Primary tumor samples (n = 65), corresponding nonmalignant lung tissues (n = 65), and circulating blood were obtained from NSCLC patients who underwent curative surgery. Promoter methylation status in seven genes (RASSF1A, CDH13, MGMT, ESR1, DAPK, SOX1, and HOXA9) was quantified by using bisulfite pyrosequencing. Five-year survival data were obtained by a clinician. Cox proportional hazards models were used to analyze the associations between gene methylation status and overall patient survival.

Results:
The 5-year survival of the patients with SOX1 aberrant tumor methylation was found to be statistically significantly shorter than for those patients without aberrant tumor methylation (P = 0.01). This effect was independent of TNM stage. No significant survival differences were associated with aberrant methylation in other genes tested in either of the two tissue types.

Conclusion:
Our study shows that SOX1 promoter hypermethylation in NSCLC tumors is significantly associated with inferior survival, showing promise as a useful prognostic biomarker in patients with NSCLC.
Oncology treatment outcome in human immunodeficiency virus-positive cancer cervix patients
Authors: Waghmare Chaitali Manohar , Bhanu Arya , Dwivedi Shreya , Pawar Hemant J , Ravichandran Meenakshi , Jain Vandana Shailendra 
Published: August 2021

Objective:
To find out the epidemiological factors and oncology treatment outcome in human immunodeficiency virus-positive cancer cervix patients (HPCCP).

Materials and Methods:
After institutional ethics committee approval, hospital case records of HPCCP registered at the radiation oncology department from January 2011 to December 2018 were retrospectively studied.

Results:
The case records of 22 eligible HPCCP were studied. Median age at presentation was 42.5 years. 90.90% of the patients were below 55 years of age. The duration of symptom was <3 months in 63.64% of patients. 68.18% of the patients were FIGO Stage III. Only 11 patients completed the planned treatment. Total target equivalent dose of 2 Gy per fraction delivered was 66 Gy. Seven patients had complete response. Four patients had local recurrence. Median disease-free and overall survival was 27 (14–38) and 18 months (2–48), respectively.

Conclusion:
HPCCP present at relatively early age and advanced stage despite short symptom duration. Poor patient compliance and treatment alteration have led to suboptimal outcome.