bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multiple Stellar Populations in Asymptotic Giant Branch Stars of Galactic Globular Clusters
Authors: Lagioia E. P. , Milone A. P. , Marino A. F. , Tailo M. , Renzini A. , Carlos M. , Cordoni G. , Dondoglio E. , Jang S. , Karakas A. , Dotter A. 
Published: March 2021

Abstract
Multiple stellar populations (MPs) are a distinct characteristic of globular clusters (GCs). Their general properties have been widely studied among main-sequence, red giant branch (RGB), and horizontal branch (HB) stars, but a common framework is still missing at later evolutionary stages. We studied the MP phenomenon along the asymptotic giant branch (AGB) sequences in 58 GCs, observed with the Hubble Space Telescope in UV and optical filters. Using UV–optical color–magnitude diagrams, we selected the AGB members of each cluster and identified the AGB candidates of the metal-enhanced population in type II GCs. We studied the photometric properties of the AGB stars and compared them to theoretical models derived from synthetic spectral analysis. We observed the following features: (i) the spread of AGB stars in photometric indices sensitive to variations of light elements and helium is typically larger than that expected from photometric errors; (ii) the fraction of metal-enhanced stars in the AGB is lower than that in the RGB in most of the type II GCs; (iii) the fraction of 1G stars derived from the chromosome map of AGB stars in 15 GCs is larger than that of RGB stars; and (v) the AGB/HB frequency correlates with the average mass of the most helium-enriched population. These findings represent clear evidence of the presence of MPs along the AGB of Galactic GCs and indicate that a significant fraction of helium-enriched stars, which have lower mass in the HB, do not evolve to the AGB phase, leaving the HB sequence toward higher effective temperatures, as predicted by the AGB manqué scenario.
TESS Re-observes the Young Multi-planet System TOI-451: Refined Ephemeris and Activity Evolution
Authors: Barragán Oscar , Aigrain Suzanne , Gillen Edward , Gutiérrez-Canales Fernando 
Published: March 2021

Abstract
We present a new analysis of the light curve of the young planet-hosting star TOI 451 in the light of new observations from TESS Cycle 3. Our joint analysis of the transits of all three planets, using all available TESS data, results in an improved ephemeris for TOI 451 b and TOI 451 c, which will help to plan follow-up observations. The updated mid-transit times are BJD–2,457,000 =

1410.9896

−
0.0029

+
0.0032

,

1411.7982

−
0.0020

+
0.0022

, and

1416.63407

−
0.00100

+
0.00096

for TOI 451 b, c, and d, respectively, and the periods are

1.8587028

−
10
e
−
06

+
08
e
−
06

,

9.192453

−
3.3
e
−
05

+
4.1
e
−
05

, and

16.364932

−
3.5
e
−
05

+
3.6
e
−
05

days. We also model the out-of-transit light curve using a Gaussian Process with a quasi-periodic kernel, and infer a change in the properties of the active regions on the surface of TOI 451 between TESS Cycles 1 and 3.
These are not the Stars You are Looking for: On the Detection of X-Ray Emission from HD 143352
Authors: Graber Sarah , Montez Rodolfo 
Published: March 2021

Abstract
As part of a search for X-ray emission from RV Tau variable stars, we discovered a serendipitous X-ray detection of the closest RV Tau variable star, HD 143352. X-rays were detected in the 0.2–2.0 keV energy band, with most counts detected in the 0.5–1.0 keV band. The emission is consistent with a 106 K plasma and L
X ∼ 2 × 1028 erg s−1. This would be the second RV Tau star detected in X-ray emission. However, after estimating the temperature (T
eff ∼ 6000 K) and bolometric luminosity (L
bol ∼ 4L
⊙) from the spectral energy distribution, we place HD 143352 on the main sequence. These stellar parameters suggest HD 143352 is neither an RV Tau variable nor a post-asymptotic giant branch star nor a super giant, but rather an early F-type main sequence star. The X-ray emission detected from HD 143352 is consistent with coronal-like emission with L
X/L
bol ∼ 10−6.
E+A Galaxy Candidates in and around the Leo Cluster
Authors: Quayum Rafid , Falcone Julia , Greenfield Spencer , Liu Charles 
Published: March 2021

Abstract
E+A galaxies are post-starburst galaxies that have undergone a recent, complete quenching of star formation. We have analyzed a color-constrained sample of galaxies from the Sloan Digital Sky Survey within a 77.′5 radius of the center of the Leo cluster of galaxies (A1367; J2000 11:44:36.5 + 19:45:32) within 3000 km s−1 of Leo’s redshift of z = 0.022 to identify and survey the E+A galaxy candidates in the cluster. Within this sample, we classified 52 of these galaxies as E+A galaxy candidates based on their spectral shapes, u–r color, lack of Hα emission, and higher-order hydrogen Balmer absorption. We further subdivide this group into “blue” and “green” E+A candidates. Our results show that the E+A galaxy candidates are distributed across the northwest and southeast subclusters of Leo, possibly as a result of merging between the two subclusters.
Functional limitation on elderly people in the northeast and the feminization of eld in urban and rural areas of Brazil
Authors: Soares Roberta Dayanny , Araújo Aíla Maropô 
Published: March 2021

Population aging in Brazil increases on a large scale due to declining fertility and mortality. This phenomenon can be influenced by several factors (demographic, biological and social), making them determinants for the health conditions of the elderly populations residing in different geographic areas. The present study aims to identify the functional limitation in elderly residents of urban and rural areas of Brazil. This is a descriptive epidemiological study with a quantitative approach. It was evidenced that the functional limitation for activities of daily living and instrumental activities of daily living are concentrated in the northeast region, mainly in the urban area. The following states presented the highest proportions of daily life activity limitation in urban areas: Alagoas (11.60%), Rio Grande do Norte (10.95%), Pernambuco (10.36%) and Paraíba (9.62%). For activities of daily living in the rural area were found in the states of Paraíba (12.19%), Maranhão (8.93%), Piauí (8.85%) and then Pernambuco (7.24%). Data from the functional limitation for instrumental activities of daily living again highlighted the Northeast region, with the states of Rio Grande do Norte (26.01%), Paraíba (25.96%), Maranhão (25.72%) and Alagoas (24.57%). Lastly, it was verified that the elderly woman exhibits greater proportions of functional limitation in relation to the elderly of the masculine sex, standing out again the northeastern region of the country.
Use of carbonized corn cob biomass to reduce acidity of residual frying oil
Authors: Bavaresco Aline , Fonseca Jhessica Marchini , Scheufele Fabiano Bisinella , Silva Camila da , Teleken Joel Gustavo 
Published: March 2021

The objective of this work was to evaluate the ability of CCC as an adsorbent material for the acidity removal of RFO, aiming at the application of the oil in biodiesel production. For that, a RCCD was used for FFA removal by applying the CCC and CAC for comparative purposes. In the RCCD removal assays the effect of the Temperature, Agitation and Mass factors were assessed over acidity removal of the oil. Under the best conditions from RCCD, an evaluation of adsorption kinetics was performed, wherein it was observed the equilibrium was reached within 4 h, for the CCC. Also, the influence of the adsorbent dosage was performed. It was verified that 4 g was sufficient to allow the system to reach the maximum FFA removal. Overall, the CCC presented results approximately twice as high than those obtained by the CAC, mainly due to the pore size distribution which led to a “molecular sieving effect” for the CCC adsorbent. It allowed the major diffusion of the FFA molecules inside its narrow-distributed pores, whereas the CAC with a wider pore distribution (up to 260 Å) resulted in the larger molecules competition for the active sites inside the porous structure. The adsorbents’ characterization also evidenced that CCC adsorbent presented a higher content of oxygenated groups in its surface which acted as potential active sites for the FFA molecules resulting in an enhanced adsorbent-adsorbate affinity. Lastly, the wastes generated in the adsorption experiments, were evaluated as to their calorific power resulting in a value of 31,933 J g-1, suggesting that it could be further used for energetic purposes, such as a solid fuel for boilers and furnaces to generate thermal energy. Based on these results, the CCC stands out as a promising material for RFO acidity removal.
Beyond Unconventional: What Do We Really Know about Group 2 Innate Lymphoid Cells?
Authors: de Lucía Finkel Pablo , Xia Wenjing , Jefferies Wilfred A. 
Published: March 2021

Abstract
Group 2 innate lymphoid cells (ILC2s) are a set of effectors that mediate the expulsion of helminthic parasites but also drive allergic lung inflammation. As innate agents, they do not recognize Ag, instead, they are sensitive to alarmin engagement, upon which they produce type 2 cytokines that amplify adaptive immunity. Their lymphoid identity appoints them as an intriguing group of unconventional cells; however, increasing evidence is unraveling a series of unprecedented functions that &lt;5 years ago were unthinkable for ILC2s, such as acquiring a proinflammatory identity that enables them to support TH1 immune responses. Their plastic nature has allowed the characterization of ILC2s in more detail than ever; however, the novelty of ILC2 biology requires constant updates and recapitulations. This review provides an overview of ILC2s and describes memory ILC2, regulatory ILC2, inflammatory ILC2, and type 1 ILC2 subsets based on activation status, tissue environments, and function.
The woman and the penile prosthetic implant. Primary or secondary role? Personal experiences on 355 implanted patients
Authors: Pozza Diego , Berardi Alberto , Pozza Mariangela , Mosca Augusto , Pozza Carlotta 
Published: March 2021

In a group of 355 pts submitted to Penile Prosthesis Implant (PPI) we recorded data on their relationships with the woman (wife, partner, girlfriend, lover); the aspects of their sexual life; if they were married, divorced or widowed; if they had a lover; if they frequented brothels; if they were satisfied of their actual couple’s life; after operation we recorded data concerning if they had some difficulties utilizing the PPI and their level of satisfaction. After operation most pts (93%) confirmed their satisfaction. Relational aspects: Unmarried pts: 6 pts (21-30 years old) who weren’t able to penetrate their girlfriends managed to have regular sex with PPI and could marry. 42/46 unmarried pts after PPI decided to marry. In the group of married pts 3 pts weren’t able to penetrate their wives; after PPI they managed to have regular intercourses and pregnancies. 15 widowers and 23 divorced pts decided to have a PPI for possible sexual encounters or stable relationships. 96/271 (28,2%) married pts declared a stable extramarital relation that could represent the main reason for having a PPI. The results of PPI are commonly accepted. Until now PPI may re-establish penile rigidity and maintenance. In our opinion the simple act of penetrate and ejaculate in vagina, without considering the importance of personal, relational, emotional factors often well linked to the specific woman, cannot be considered the ideal target of PPI.
Uma discussão a partir da filosofia da diferença: currículo e o ensino de ciências da natureza - primado dos desejos e das subjetividades
Authors: Ernst Daniela Carolina , Keske Cátia , Nonenmacher Sandra Elisabet Bazana , Rigodanzo Sirlei , Nicolay Deniz Alcione 
Published: March 2021

Este texto escrito de maneira ensaistica, enseja problematizar o currículo e o ensino de Ciências da Natureza, a partir do primado dos desejos e das subjetividades, na perspectiva da Filosofia da Diferença. Questionamo-nos, dessa forma, sobre: O que entendemos por currículos escolares? De que maneira e quais atividades curriculares podem contribuir nos processos de aprender e de ensinar visando a atender as carências, faltas ou desejos dos alunos?Pode o currículo e o ensino de Ciências da Natureza dar conta das diferenças? Como ferramenta de operacionalização desta escrita, faremos uso da cartografia enquanto possibilidade de se observar os movimentos que perpassam esses corpos e espacos e tempos curriculo-escolares.
A cross-sectional study of socio-demographic and clinical profile of HIV patients at ART plus centre, Sawai Man Singh Hospital, Jaipur, India
Authors: Jain Charu , Sharma Lokendra , Advani Uma , Kumar Munesh , Tak Amit , Jain Monica 
Published: March 2021

Background: This study aimed to understand the regional variation in the socio-demographic and clinical profile of human immunodeficiency virus (HIV) infected patients at antiretroviral therapy plus centre of Sawai Man Singh (SMS) hospital, Jaipur, India.
Methods: A descriptive cross-sectional study was conducted on HIV patients from January to December 2019. The HIV-positive patients of all age groups and all categories were included in the study. The socio-economic status was assessed by BG Prasad classification-based consumer price index. However, the clinical staging was done according to the World Health Organization (WHO) classification of HIV/AIDS. Data were expressed as mean ± standard deviation.
Results: Among 525 HIV patients 59.16% were males, 40.26% females and 0.57% intersex. About half (51.0%) in the reproductive age group with mean age 36 ±13 years. The commonest mode of HIV transmission was heterosexual (89.77%). Maximum belonged to social class I (57.84%) and class II (26.05 %) of BG Prasad's socioeconomic status. Each of the non-agricultural laborers and semi-skilled workers constitutes 18.0%, and the housewives were 23.6%. At the time of presentation, baseline CD4+Tcell count was <350 /mm3 in 55.0% of HIV patients. Pulmonary tuberculosis and skin involvement were the most predominant secondary opportunistic infections accounting for 24.8% and 7.8%, respectively. More than half (52.09%) of patients were in WHO clinical stage I of HIV disease.
Conclusion: Socio-demographic and clinical profile of study participants reflect an impact of early case detection and timely institution of highly active antiretroviral therapy.
PENINGKATAN HASIL BELAJAR IPA SISWA SEKOLAH DASAR MELALUI PENERAPAN METODE EKSPERIMEN
Authors: ROSIDAH DEDAH 
Published: March 2021

Tujuan yang ingin dicapai dalam penelitian ini secara adalah untuk mengetahui peningkatan hasil belajar siswa pada pembelajaran IPA di kelas IV melalui penggunaan metode eksperimen. Metode penelitian yang digunakan adalah metode penelitian digunakan adalah Penelitian Tindakan Kelas (PTK) atau classroom action research dengan menyajikan data hasil penelitian secara deskriftif kualitatif berupa pemaparan dari data diteliti saat pelaksanaan tindakan pembelajaran. Subjek penelitian adalah siswa kelas IV SDN 2 Cadassari berjumlah 26 siswa yang terdiri dari 12 laki-laki dan 14 siswa perempuan. Berdasarkan rumusan masalah dan tujuan yang merupakan langkah awal proses penelitian ini, maka beberapa kesimpulan dan saran-saran yang merupakan implikasi praktis hasil penelitian. Berdasarkan temuan dan pembahasan pada setiap tindakan dalam penelitian hasil penelitian ini dapat dihasilkan penelitian sebagai berikut: (1) Pelaksanaan perbaikan pembelajaran IPA dengan menggunakan metode eksperimen dapat meningkatkan hasil belajar siswa kelas IV SDN 2 Cadassari berdasarkan perolehan nilai rata-rata tes hasil belajar siswa pada siklus kesatu mendapat rata-rata 62.31, dan pada siklus kedua nilai rata-rata 74,62. (2) Ketuntasan belajar siswa secara klasikal juga dapat tercapai sesuai indikator keberhasilan penelitian ini berdasarkan siswa yang mencapai KKM pada siklus kedua sebanyak 23 orang siswa (88,46 %).
LA RESPUESTA DEL TRIBUNAL CONSTITUCIONAL A LOS DECRETOS-LEYES EN MATERIA DE DERECHOS SOCIALES. EL CRITICABLE RETROCESO DE LA JURISPRUDENCIA CONSTITUCIONAL
Authors: HERNÁNDEZ RAMOS MARIO 
Published: March 2021

Dentro del marco temporal del periodo del 2008 al 2015 en el que
la crisis económica tuvo su apogeo, se han analizado las sentencias del Tribunal
Constitucional sobre Decretos-Leyes en materia de derechos sociales. Se presta
atención a las argumentaciones de las dos posturas enfrentadas en el seno del Tribunal
que ponen de manifiesto la diferente conceptualización sobre los derechos
sociales, su protección y su regulación. Se destaca también la débil argumentación
jurídico constitucional empleada por la mayoría para sustentar sus posiciones.
Joan gaitezen krisi ekonomikoaren aldirik gorenera, 2008-2015
bitartera, eta azter ditzagun Konstituzio Auzitegiak eskubide sozialen inguruko
lege&#8209;dekretuen gainean hartu zituen epaiak. Auzitegi barruan badira bi jarrera
kontrajarri, eta batez ere haien arrazoibideak jo ditugu begiz, erakusten dutelako
badela modu bat baino gehiago eskubide sozialak eta haien babesa eta haien
arauketa kontzeptualizatzeko. Gehiengoak darabilen arrazoiketa juridikoa eskasa
da edonola ere, eta hori ere azpimarratu dugu.
In this article are analysed the judgments of the Constitucional
Court on Decrees-law dealing with social rights within the economic crisis from
2008 to 2015. Attention is paid to the constitutional grounds put forward by the
two opposing positions within the Constitutional Court, which highlights the
different concepts of social rights, their protection and their regulation. It also
becomes clear that the majority used weak constitutional grounds to support its
position.
LOS DERECHOS SOCIALES DE LOS CIUDADANOS DE PAÍSES TERCEROS ENTRE REGIONALISMO Y DERECHO DE LA UNIÓN EUROPEA. EL CASO ITALIANO
Authors: PELACANI GRACY 
Published: March 2021

El análisis se concentra en los factores que influenciaron la evolución
y el alcance de los límites al acceso a los derechos sociales por parte de
los ciudadanos de países terceros en el ordenamiento italiano. Se considera, en
primer lugar, el impacto de las reformas constitucionales de 2001 y 2012 sobre
la atribución de competencias entre Estado y Regiones, y la manera en que estas
afectaron la disciplina de la inmigración y la normativa que regula el acceso a los
derechos sociales. En segundo lugar, prestamos atención a la jurisprudencia relevante
de la Corte costituzionale en la que se establece que, en el acceso a los derechos
sociales, aunque se permita el trato diferente con base en el estatuto jurídico
de los individuos, los elementos que lo justifican no podrán ser ni irrazonables ni
arbitrarios, al fin de no originar tratos discriminatorios y, por ende, inconstitucionales.
Joan gaitezen Italiako ordenamendura eta begiratu bat eman hirugarren
herrialdeetako herritarrek eskubide sozialetara iristeko dauzkaten mugei,
ea zerk izan duen zeresana muga horien bilakaeran eta norainokoan. Lehenik eta
behin, saiatuko gara ikusten 2001 eta 2012 bitarteko konstituzio-erreformek zer-nolako
ondorioak izan zituzten estatuaren eta eskualdeen arteko eskumen-banaketan
eta nolako eragina izan zuten immigrazioaren diziplinan eta eskubide sozialetarako
sarbidea antolatzen duen araudian. Bigarrenik, begiratuko dugu Corte Constituzionaleren
jurisprudentzian zer jartzen duen gai honi buruz. Eta, han dionez, eskubide
sozialetara iristeko bidean, ez da ezinezkoa tratua ezberdina izatea norbanakoaren
estatutu juridikoaren arabera, baina irizpideek ezin dute izan ez arrazoi gabeak ez
arbitrarioak, inor ez baztertzearren eta, hortaz, Konstituzioa ez urratzearren.
The contribution focuses on the elements that have influenced
the way in which access to social rights by third-country nationals has been
limited over time in the Italian legal system. It considers, in the first place, how
the 2001 and 2012 amendments of the Constitution impacted on the division
of competences between the State and the Regions, and the way in which they
have affected the body of norms regulating immigration and access to social
rights. Secondly, attention is paid to the relevant constitutional case-law where it
is affirmed that even if in regulating access to social rights a different treatment
based on the legal status of individuals is allowed, it cannot be justified by
arbitrary or no reasonable reasons, because otherwise they would amount to a
discriminatory treatment, thus being unconstitutional.
MEGAMINERÍA EN URUGUAY:CONFLICTOS ESTRUCTURANTES DE UN NUEVO CAMPO EN DISPUTA. Mega-mining in Uruguay: Structural conflicts of a new field in dispute
Authors: Rieiro Anabel , Posada Valentina 
Published: March 2021

El objetivo del artículo será sistematizar y analizar algunas de las discusiones, planteadas como conflictos entre actores específicos, emergentes a partir de la propuesta de explotación del hierro a través de la megaminería en Uruguay. La discusión, lejos de querer analizarse en una clave simplista "megaminería si / megaminería no", pretende abordar algunas de las implicancias de este tipo de proyecto a nivel sociopolítico, desde la perspectiva de las ciencias sociales.La metodología abordada se basó en el análisis de discursos públicos, notas de prensa y distintas fuentes secundarias desde el 2010 a la fecha. Para ello, se sistematizaron los conflictos emergentes en las temáticas recurrentes dentro de la esfera pública, analizando las distintas posturas que los actores involucrados fueron tomando en el campo político. La información se ordenará en cuatro dimensiones del conflicto: 1. el proyecto económico, 2. el proyecto ambiental, 3. el proyecto social y 4. el proyecto político.
IMPACTO ECONÔMICO E SOBERANIA ALIMENTAR E NUTRICIONAL: UM ESTUDO DE CASO NA COMUNIDADE NEGRA RURAL PALENQUEIRA SAN JUAN DE PALOS PRIETO, REGIÃO DO CARIBE COLOMBIANO/Economic impact and food and nutritional sovereignty: the case study in the rural black community Palenqueira San Juan de Palos Prieto, Colombian Caribbean region/Impacto económico y la soberanía alimentaria y nutricional: un estudio de caso en la comunidad rural negro Palenqueira San Juan de Palos Prieto, región del Caribe colombiano
Authors: Silva Lucas Bento da 
Published: March 2021

Este artigo é um esforço de práxis, que tem como objetivo compreender as técnicas e o manejo da produção de alimentos e o impacto econômico da palma africana na comunidade negra rural Palenqueira San Juan de Palos Prieto, região do Caribe colombiano. Também investigamos a autonomia feminina e a autonomia do grupo étnico relacionado no território geográfico estudado. A noção de soberania alimentar e nutricional que está anexada em reconhecimentos da garantia ao direito à alimentação das comunidades tradicionais e outras categorias sociais. Além disso, há a problemática racial advinda dos fatos históricos e atuais que relegou aos negros (a) lugares sociais marginalizados na América Latina. Portanto, propomos desenvolver uma reflexão critica do processo de produção e da espoliação das terras dessa comunidade, a partir da concepção geográfica, que não restringe o entendimento de território apenas ao espaço físico, incluindo outros elementos como os históricos, sociais, políticos e culturais.