bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determination of Bioactive and Pharmaceutical Components of Croton bonplandianus by GC-MS Analysis
Authors: Sivagnanam, Selvakumar , R Valliammai 
Published: August 2020

The present study sought to analyze the chloroformic extract of aerial parts of the Indian medicinal plant Croton bonplandianus by GC-MS analysis and to explore the presence of major phytoconstituents. Gas chromato-graphy–mass spectrometric (GC–MS) analysis was carried out on the chloroformic extract of aerial parts of Croton bonplandianus for identification of phytocomponents in the plant while the mass spectra of the components found in the extract was matched with the National Institute of Standards and Technology (NIST) library. There are 59 bioactive components were identified from chloroformic extract of Croton bonplandianus. Hence, it is of interest to investigate the presence of phytoconstituents from the chloroformic extract of Croton bonplandianus by using GC-MS method. The highest peak area (%) of 21.710 was obtained by Phenol,2-methyl1-5-(1,2,2-trimethyl cyclo pentyl)-(s) (Retention time 28.236) and the lowest peak area (%) of 0.76 was obtained by Bicyclo [7,2,0] undecane,10,10-dimethyl1-2,6-bis (methylene)-[1S-1R*,9S*)] (Retention time 29.396). Results confirmed the presence of therapeutically potent compounds in the plant extract. This study is helpful to predict the formula and structure of biomolecules which can be used as drugs and further investigation may lead to the development of drug formulation.
New Approaches In The Diagnosis Of Oral Hemangiomas
Authors: M.A. Karimov , D.Z. Mamarasulova , R.R. Sadykov , Kh.Kh. Nurmatova 
Published: August 2020

Scientific work was carried out on the basis of the Tashkent Medical Academy, Department of Surgery (1st city hospital), and Andijan Medical Institute, Department of Oncology from 2015-2020. Clinical material includes 175 patients. The comparison group consisted of 100 patients who were treated in various hospitals in Tashkent and regions of Uzbekistan. According to the classification of vascular anomalies, the majority of patients with benign vascular tumors (DBT) were diagnosed with infantile hemangioma (IG) - 82.0%, congenital hemangioma (VH) - 11.4%, pyogenic granuloma (PG) - 5.8%. Average age of patients: children - 1.2 ± 0.4, adults - 27 ± 1.2 years. The frequency of DSO in girls was 78%, in boys - 22%. Localization area: lip - 57.6%, cheek 8%, tongue 26.3%. Complications of DSO: anatomical disorders, edema, bleeding, pain, infection, respiratory disorders occurred in 83.7% of patients.
Tycho: Realistically Simulating Exoplanets within Stellar Clusters. I. Improving the Monte Carlo Approach
Authors: Glaser Joseph P. , McMillan Stephen L. W. , Geller Aaron M. , Thornton Jonathan D. , Giovinazzi Mark R. 
Published: August 2020

Abstract
To fully understand the diverse population of exoplanets, we must study their early lives within open clusters, the birthplace of most stars with masses >0.5M
⊙ (including those currently in the field). Indeed, when we observe planets within clustered environments, we notice highly eccentric and odd systems that suggest the importance of dynamical pathways created by interactions with additional bodies (as in the case of HD 285507b). However, it has proven difficult to investigate these effects, as many current numerical solvers for the multi-scale N-body problem are simplified and limited in scope. To remedy this, we aim to create a physically complete computational solution to explore the role of stellar close encounters and interplanetary interactions in producing the observed exoplanet populations for both open cluster stars and field stars. We present a new code, Tycho, which employs a variety of different computational techniques, including multiple N-body integration methods, close encounter handling, modified Monte Carlo scattering experiments, and a variety of empirically informed initial conditions. We discuss the methodology in detail, and its implementation within the AMUSE software framework. Approximately 1% of our systems are promptly disrupted by star-star encounters contributing to the rogue planets occurrence rate. Additionally, we find that close encounters which that perturb long-period planets lead to 38.3% of solar-system-like planetary systems becoming long-term unstable.
A Mystery in Chamaeleon: Serendipitous Discovery of a Galactic Symbiotic Nova
Authors: Lancaster Lachlan , Greene Jenny E. , Ting Yuan-Sen , Koposov Sergey E. , Pope Benjamin J. S. , Beaton Rachael L. 
Published: August 2020

Abstract
We present the serendipitous discovery of a low optical-luminosity nova occurring in a D-type symbiotic binary star system in the Milky Way. We lay out the extensive archival data alongside new follow-up observations related to the stellar object CN Cha in the constellation of Chamaeleon. The object had long period (250 days), high amplitude (3 mag) optical variability in its recent past, preceding an increase in optical brightness by 8 magnitudes and a persistence at this brightness for about 3 yr, followed by a period of 1.4 mag yr−1 dimming. The object’s current optical luminosity seems to be dominated by Hα emission, which also exhibits blueshifted absorption (a P-Cygni-like profile). After consideration of a number of theories to explain these myriad observations, we determine that CN Cha is most likely a symbiotic (an evolved-star–white-dwarf binary) system that has undergone a long-duration, low optical brightness, nova, placing it squarely in the class of so-called “slow novae,” of which there are only a few known examples. The duration of the optical plateau in CN Cha would make it the shortest timescale plateau of any known slow symbiotic novae.
Clarissa Family Age from the Yarkovsky Effect Chronology
Authors: Lowry Vanessa C. , Vokrouhlický David , Nesvorný David , Campins Humberto 
Published: August 2020

Abstract
The Clarissa family is a small collisional family composed of primitive C-type asteroids. It is located in a dynamically stable zone of the inner asteroid belt. In this work we determine the formation age of the Clarissa family by modeling planetary perturbations as well as thermal drift of family members due to the Yarkovsky effect. Simulations were carried out using the SWIFT-RMVS4 integrator modified to account for the Yarkovsky and Yarkovsky–O’Keefe–Radzievskii–Paddack (YORP) effects. We ran multiple simulations starting with different ejection velocity fields of fragments, varying proportion of initially retrograde spins, and also tested different Yarkovsky/YORP models. Our goal was to match the observed orbital structure of the Clarissa family which is notably asymmetrical in the proper semimajor axis, a
p. The best fits were obtained with the initial ejection velocities ≲20 m s−1 of diameter D ≃ 2 km fragments, ∼4:1 preference for spin-up by YORP, and assuming that ≃80% of small family members initially had retrograde rotation. The age of the Clarissa family was found to be t
age = 56 ± 6 Myr for the assumed asteroid density ρ = 1.5 g cm−3. Small variation of density to smaller or larger value would lead to slightly younger or older age estimates. This is the first case where the Yarkovsky effect chronology has been successfully applied to an asteroid family younger than 100 Myr.
Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. II. Free-floating Planet Detection Rates*
Authors: Johnson Samson A. , Penny Matthew , Gaudi B. Scott , Kerins Eamonn , Rattenbury Nicholas J. , Robin Annie C. , Calchi Novati Sebastiano , Henderson Calen B. 
Published: August 2020

Abstract
The Nancy Grace Roman Space Telescope (Roman) will perform a Galactic Exoplanet Survey (RGES) to discover bound exoplanets with semimajor axes greater than 1 au using gravitational microlensing. Roman will even be sensitive to planetary-mass objects that are not gravitationally bound to any host star. Such free-floating planetary-mass objects (FFPs) will be detected as isolated microlensing events with timescales shorter than a few days. A measurement of the abundance and mass function of FFPs is a powerful diagnostic of the formation and evolution of planetary systems, as well as the physics of the formation of isolated objects via direct collapse. We show that Roman will be sensitive to FFP lenses that have masses from that of Mars (0.1 M
⊕) to gas giants (M ≳ 100 M
⊕) as isolated lensing events with timescales from a few hours to several tens of days, respectively. We investigate the impact of the detection criteria on the survey, especially in the presence of finite-source effects for low-mass lenses. The number of detections will depend on the abundance of such FFPs as a function of mass, which is at present poorly constrained. Assuming that FFPs follow the fiducial mass function of cold, bound planets adapted from Cassan et al., we estimate that Roman will detect ∼250 FFPs with masses down to that of Mars (including ∼60 with masses ≤ M
⊕). We also predict that Roman will improve the upper limits on FFP populations by at least an order of magnitude compared to currently existing constraints.
Transits of Known Planets Orbiting a Naked-eye Star
Authors: Kane Stephen R. , Yalçınkaya Selçuk , Osborn Hugh P. , Dalba Paul A. , Nielsen Louise D. , Vanderburg Andrew , Močnik Teo , Hinkel Natalie R. , Ostberg Colby , Esmer Ekrem Murat , Udry Stéphane , Fetherolf Tara , Baştürk Özgür , Ricker George R. , Vanderspek Roland , Latham David W. , Seager Sara , Winn Joshua N. , Jenkins Jon M. , Allart Romain , Bailey Jeremy , Bean Jacob L. , Bouchy Francois , Butler R. Paul , Campante Tiago L. , Carter Brad D. , Daylan Tansu , Deleuil Magali , Diaz Rodrigo F. , Dumusque Xavier , Ehrenreich David , Horner Jonathan , Howard Andrew W. , Isaacson Howard , Jones Hugh R. A. , Kristiansen Martti H. , Lovis Christophe , Marcy Geoffrey W. , Marmier Maxime , O’Toole Simon J. , Pepe Francesco , Ragozzine Darin , Ségransan Damien , Tinney C. G. , Turnbull Margaret C. , Wittenmyer Robert A. , Wright Duncan J. , Wright Jason T. 
Published: August 2020

Abstract
Some of the most scientifically valuable transiting planets are those that were already known from radial velocity (RV) surveys. This is primarily because their orbits are well characterized and they preferentially orbit bright stars that are the targets of RV surveys. The Transiting Exoplanet Survey Satellite (TESS) provides an opportunity to survey most of the known exoplanet systems in a systematic fashion to detect possible transits of their planets. HD 136352 (Nu2 Lupi) is a naked-eye (V = 5.78) G-type main-sequence star that was discovered to host three planets with orbital periods of 11.6, 27.6, and 108.1 days via RV monitoring with the High Accuracy Radial velocity Planet Searcher (HARPS) spectrograph. We present the detection and characterization of transits for the two inner planets of the HD 136352 system, revealing radii of

R
⊕ and

R
⊕ for planets b and c, respectively. We combine new HARPS observations with RV data from the Keck/High Resolution Echelle Spectrometer and the Anglo-Australian Telescope, along with TESS photometry from Sector 12, to perform a complete analysis of the system parameters. The combined data analysis results in extracted bulk density values of

g cm−3 and

g cm−3 for planets b and c, respectively, thus placing them on either side of the radius valley. The combination of the multitransiting planet system, the bright host star, and the diversity of planetary interiors and atmospheres means this will likely become a cornerstone system for atmospheric and orbital characterization of small worlds.
L’art brut, le « travail de culture » dans l’institution totalitaire
Authors: Di Rocco Vincent 
Published: August 2020

« L’art brut », issu des asiles psychiatriques, n’est pas seulement une création ignorante des codes, comme le propose J. Dubuffet, ou une création de la folie, pour les aliénistes du xix e siècle, il forme une modalité de réponse à l’emprise totalitaire définie par E. Goffman. Il n’est pas non plus possible de réduire ces œuvres à une forme d’adaptation secondaire utilisée pour l’interné pour résister aux prescriptions institutionnelles. Ces créations de la solitude et du secret représentent une des formes du « travail de culture » opérant une réduction de la « mésinscription », par la restauration paradoxale d’un ordre symbolique grâce à des créations artistiques singulières. Les évolutions institutionnelles qui ont suivi la fin de la Deuxième Guerre mondiale ont entraîné la disparition progressive de ce type de création, au profit de l’apparition de médiations thérapeutiques. La présence d’un tiers et d’un dispositif clinique instaurant les possibilités d’une relation transférentielle restitue au processus créateur sa dimension d’adresse et de symbolisation, sortant les sujets de leur condition « d’infirme du signe » dans laquelle les reléguaient les institutions asilaires.
Analyse de la pratique dans un contexte interculturel, le cas d’une ONG africaine
Authors: Bansard Nolhan , Gratton Emmanuel 
Published: August 2020

Depuis quelques années, l’Afrique semble ouvrir ses portes au tourisme social et au tourisme solidaire , permettant ainsi aux étrangers d’intégrer temporairement, selon leurs motivations et leurs projets, des associations ou des organisations non gouvernementales, croisant ainsi des désirs de voyage avec des désirs d’investissements humanitaires. De plus, depuis 2010, la jeunesse française peut désormais s’investir, grâce au service civique, dans des projets internationaux. Une nouvelle passerelle est créée. Devant l’affluence croissante du nombre d’internationaux au sein d’une ong africaine, des dysfonctionnements et des troubles émergent entre les professionnels locaux et les intervenants étrangers. Nous proposons d’étudier ces dysfonctionnements, mais également d’y formuler une réponse à travers la mise en place innovante et expérimentale de groupes d’analyse de la pratique. Dans ce contexte interculturel, le dispositif groupal doit donc s’adapter à son originalité : l’interculturalité des pratiques et des pratiquants.
Neonatal and Children’s Immune System and COVID-19: Biased Immune Tolerance versus Resistance Strategy
Authors: Elahi Shokrollah 
Published: August 2020

Abstract
The recent outbreak of COVID-19 has emerged as a major global health concern. Although susceptible to infection, recent evidence indicates mostly asymptomatic or mild presentation of the disease in infants, children, and adolescents. Similar observations were made for acute respiratory infections caused by other coronaviruses (severe acute respiratory syndrome and Middle East respiratory syndrome). These observations suggest that the immune system behaves differently in children than adults. Recent developments in the field demonstrated fundamental differences in the neonatal immune system as compared with adults, whereby infants respond to microorganisms through biased immune tolerance rather than resistance strategies. Similarly, more frequent/recent vaccinations in children and younger populations may result in trained immunity. Therefore, the physiological abundance of certain immunosuppressive cells, a tightly regulated immune system, and/or exposure to attenuated vaccines may enhance trained immunity to limit excessive immune reaction to COVID-19 in the young.
Pattern and Correlates of Human Immunodeficiency Virus Testing among General Population in Nasarawa State, Nigeria: Findings from a Population-based Survey
Authors: Bako IA , Tolough GI , Anyanti J 
Published: August 2020

Human Immunodeficiency Virus testing provides an entry point into the HIV care and treatment services, necessitating the UNAIDS strategic target of getting 90% of all people living with HIV to know their HIV status by 2020. This study was aimed at determining the prevalence and factors associated with HIV testing among the general population in Nasarawa State, Nigeria. The study was an analysis of a cross-sectional survey conducted among 903 randomly selected sample of the adult population in Nasarawa state, Nigeria. Prevalence of recent HIV testing and its association with respondents' Sociodemographic variables, risky sexual behaviours, drug and alcohol use, among other factors was determined using logistic regression analysis. The proportion of respondents who ever tested for HIV was 53%%, while 30.1% did the test in the previous one year. Logistic regression revealed that factors significantly associated with HIV testing in the previous one year secondary education and higher (AOR = 1.92, 95 % CI 1.35–2.72), knowing where HIV testing are done (AOR = 31.37, 95% CI: 9.98-99.79), comprehensive knowledge of HIV ( AOR: 1.72, 95%CI: 1.24 – 2.39) and those with low HIV personal risk perception (AOR = 3.56, 95%CI : 1.49 – 8.31). HIV testing among the general population in Nasarawa State is relatively low. Higher education, knowing where HIV testing are done, comprehensive knowledge of HIV, low HIV personal risk perception were significantly associated with HIV testing. Awareness campaigns on HIV and specifically on the importance of HIV testing in communities must be intensified.
Oral Communication Needs of Pre-Service Teachers in Practice Teaching
Authors: Jaca Cristie Ann L. , Javines Felino B. 
Published: August 2020

Practice teaching is the culmination of the teacher education program where student teachers apply learned content knowledge and pedagogical skills in real classroom teaching. The purpose of this paper is to present the perceived oral communication needs of student teachers during their practice teaching. Survey questionnaire, classroom observations and focused group discussions were used to collect the needed data. It was found that student teachers’ oral communication skills in English fall short and need to be enhanced to cope with the demands of the teaching profession. Likewise, it was noted that the need to have a special kind of English class for pre-service teachers is very much needed to help them in their practice teaching since the medium of instruction used in class is English. Furthermore, the kind of English they need for classroom communication is also very specific for classroom interactions. The findings serve as basis in designing a module that can be used in remedial class in English for Pre-Service Teachers to respond to their communicative needs in the classroom.
Roberto faz falta.../ We miss Robertoâ€¦
Authors: Ballarin Maria Luisa Gazabim Simões , Carvalho Fábio Bruno de 
Published: August 2020

Esse texto, escrito carinhosamente a duas mãos, busca resgatar em nossas memórias, fatos que dizem respeito à nossa convivência com um querido amigo e à sua trajetória profissional. Para elaborá-lo, procuramos reconstituir o ambiente e o afeto que costumeiramente experimentávamos quando nos encontrávamos com Roberto Ciasca. This text, written affectionately with two hands, seeks to rescue in our memories, facts that relate to our coexistence with a dear friend and to his professional trajectory. To elaborate it, we tried to reconstruct the atmosphere and affection we usually experienced when we met Roberto Ciasca. Keywords: Memory; Occupational therapy Este texto, escrito cariñosamente a dos manos, busca rescatar en nuestras memorias, hechos que se refieren a nuestra convivencia con un querido amigo y su trayectoria profesional. Para elaborarlo, procuramos reconstituir el ambiente y el afecto que habitualmente experimentábamos cuando nos encontrábamos con Roberto Ciasca.Palabras claves: Memoria; Terapia ocupacional
Concepções da equipe de saúde da família sobre a atenção prestada aos usuários de álcool e outras drogas/ Conceptions of the Family Health Team about the attention provided to alcohol and other drug users
Authors: Marinho Mayelle Tayana , Barros Márcia Maria Mont' Alverne de 
Published: August 2020

Introdução: A Atenção Básica se configura um cenário fértil para ofertar cuidado em saúde mental às pessoas que fazem uso prejudicial de álcool e outras drogas. Os cuidados prestados pela equipe da Unidade Básica de Saúde acontecem próximos à realidade dos sujeitos que devem ser enxergados de maneira singular. Objetivo: A pesquisa teve como objetivo conhecer as concepções da equipe da UBS de um município do estado da Paraíba em relação à atenção em saúde prestada aos usuários de álcool e outras drogas. Método: Trata-se de um estudo descritivo-exploratório, com abordagem qualitativa, utilizou-se para a coleta dos dados uma entrevista semiestruturada. Seguiram-se os passos metodológicos da análise de conteúdo temática. A coleta aconteceu em novembro de 2016. Os participantes foram: um médico, uma enfermeira, uma técnica em enfermagem, uma auxiliar de saúde bucal, uma auxiliar de farmácia e uma agente comunitária de saúde. Resultados: Os achados do estudo elucidaram que os trabalhadores veem o usuário de álcool e outras drogas como uma pessoa dependente, doente, viciada, que necessita de ajuda, assistência, acompanhamento e tratamento. Eles consideram o uso de drogas um problema com repercussões negativas amplas para os usuários, sua vida familiar, esfera social, configurando-se também um problema de saúde pública. Conclusão: Dessa forma, compreende-se que a atenção prestada aos usuários de álcool e outras drogas, no âmbito da Atenção Básica, deve ser priorizada no cerne das políticas públicas.
Um brinde à diversidade! / A toast to diversity!
Authors: Cazeiro Ana Paula Martins , Corrêa Victor Augusto Cavaleiro , Battistel Amara Lúcia Holanda Tavares 
Published: August 2020

Pensar o fazer humano em Terapia Ocupacional é caminhar por um território de diversidades. Conceitos e opiniões ora se complementam ora nem tanto, divergindo entre os terapeutas que se lançam à tentativa de explicar esta relação. Anos de história se passaram e vimos a emergência de questionamentos e inquietações acerca de como e onde temos ancorado nossa Terapia Ocupacional. Ao comemorarmos o centenário da Terapia Ocupacional, recordamos os referenciais teórico-metodológicos que nortearam e norteiam as práticas profissionais nos diferentes contextos. Sendo os terapeutas ocupacionais defensores do respeito às diferenças, convidamos a todos para um brinde à diversidade! To think about human doing in Occupational Therapy is to walk through a territory of diversities. Concepts and opinions now complement each other, not so much, diverging among the therapists who try to explain this relationship. Years of history have passed and we have seen the emergence of questions and concerns about how and where we have anchored our Occupational Therapy. As we commemorate the centennial of Occupational Therapy, we recall the theoretical and methodological references that guided and guide professional practices in different contexts. As occupational therapists advocate respect for differences, we invite everyone to a toast to diversity!Keywords: Knowledge; Professional practice; Occupational therapy. Pensar en hacer humano en Terapia Ocupacional es caminar por un territorio de diversidades. Los conceptos y las opiniones ya se complementan tanto, divergiendo entre los terapeutas que se lanzan al intento de explicar esta relación. Años de historia se pasaron y vimos la emergencia de cuestionamientos e inquietudes acerca de cómo y dónde hemos anclado nuestra Terapia Ocupacional. Al conmemoramos el centenario de la Terapia Ocupacional, recordamos los referentes teórico-metodológicos que guiaron y orientan las prácticas profesionales en los diferentes contextos. Siendo los terapeutas ocupacionales defensores del respeto a las diferencias, invitamos a todos a un brindis a la diversidad! Palabras claves: Conocimiento; Práctica profesional; Terapia ocupacional.