bluuebunny/crossref_metadata_2025 huggingface dataset:
Kimya Ders Denetimi
Authors: COŞKUN Nihal
Published: March 2023

Bu çalışmada, kimya öğretim programlarının tarihi gelişimine değinilerek Millî Eğitim Bakanlığı Talim ve Terbiye Kurulu tarafından 2018 yılında kabul edilen kimya dersi öğretim programı esas alınarak Millî Eğitim Bakanlığı Teftiş Kurulunca hazırlanan makam oluruna dayalı (mucipli) öğretmen ders denetim rehberi çerçevesinde kimya ders denetim usul ve esasları incelenmiştir. Makam oluruna dayalı (mucipli) öğretmenin ders denetiminin yapılabilmesi için öğretmen hakkında makamdan olur alınmış olması gereklidir. Makam oluru içeriğine bağlı olarak “ders denetimi”, “ders denetimi, inceleme ve gerektiğinde soruşturma yapılması” veya konuyla ilgili itham edilen başka kişilerinde bulunması halinde “ders denetimi, varsa sorumluluğu görülenler hakkında inceleme ve gerektiğinde soruşturma yapılması” işlemleri gerçekleştirilir. Öğretmen ders denetimlerinde yürürlükte olan öğretim program esaslarına bağlı kalınmaktadır. Öğretim programları geliştirme çalışmaları dinamik bir süreç olduğundan zaman içerisinde programlar günün şartlarına göre yeniden değerlendirilerek iyileştirme ve geliştirme çalışmaları yapılmaktadır.
Estonya’da Eğitim Teftiş Sistemi
Authors: GÜZEL Nurullah Sakin
Published: March 2023

Türk Eğitim Sisteminin en önemli alt sistemlerinden biri olan Teftiş Sisteminin yapısı uzun yıllar boyunca akademik çevrelerce tartışılmış, günümüzde de tartışılmaya devam etmektedir. Bu tür tartışmalarda karşılaştırma önemli bir ölçüttür. Eğitim sistemlerinde yapılacak eylem planları üzerinde bu karşılaştırmalardan faydalanılabildiğinden dolayı diğer ülkelerin eğitim sistemlerinin incelenmesi büyük önem taşımaktadır. Bu çalışmanın amacı Estonya Eğitim sistemine ait Teftiş alt sisteminin yapı ve işleyişini incelemektir. Araştırma nitel araştırma yöntemlerinden doküman incelemesi şeklinde düzenlenmiştir. Araştırmanın çalışma grubu PISA gibi uluslararası öğrenci değerlendirme sınavlarında başarılı bir ülke olan Estonya şeklinde belirlenmiştir. Buna göre Estonya’da öz değerlendirme, tematik denetim, risk tabanlı denetim gibi daha çağcıl yaklaşımlarla denetim faaliyetlerinin gerçekleştirildiği, eğitim mevzuatının fırsat eşitliği temelinde düzenlenmesinden dolayı bunun da denetimlere yansıdığı, ayrıca eğitim kurumlarının denetimlerinde ayrıntılı ve doğruluk payı yüksek bir veri izleme sisteminin kullanıldığı anlaşılmıştır. Çalışmanın sonunda, Estonya ile ilgili bulgular Türkiye ile karşılaştırılmış ve Türkiye’deki teftiş sistemine katkıda bulunmak için bazı önerilerde bulunulmuştur.
Accounting Information Disclosure and Dividend Payout of Listed Pharmaceutical Firm in Nigeria
Authors: Odoemelam Ezechinyere Peter , Obiora Fabian
Published: March 2023

This study analyzed the accounting information disclosure and dividend payout of listed pharmaceutical firm in Nigeria from 2016 to 2021. The specific objectives were to: Examine the effect of earnings per share on dividend payout of listed pharmaceutical firm in Nigeria; Assess the effect of Net Profit Margin on dividend payout of listed pharmaceutical firm in Nigeria; Evaluate the effect of stock price on dividend payout of listed pharmaceutical firm in Nigeria The following independent variables were used: earning per share, net profit margin and stock price while dividend payout policy was used as the dependent variables. Secondary sources of data were employed; the relevant data were obtained from the financial report of the selected firms. Panel Least Square (OLS) method was used in analyzing the data. The result revealed that Earnings per share have significant effect on dividend payout of listed pharmaceutical firm in Nigeria. It was found that Net Profit Margin has no significant effect on dividend payout of listed pharmaceutical firm in Nigeria It was found that Stock price has significant effect on dividend payout of listed pharmaceutical firm in Nigeria. The researcher recommends that Shareholders always consider the dividends as a source of income as the board should ensure a stable price ratio. The accounting information generated should be readily available for potential investors’ decision making. The qualities of financial information which include timeliness, clarity, relevance and accessibility of the information should be a guide in providing financial information.
Compare Between Endoscopic Variceal Band Ligation and Injection Sclerotherapy Treatment Among Acute Variceal Bleeding Patients MSI Bleeding Center, Khartoum State, Sudan, 2018
Authors: Osman Abuzur Osman Adam , AbuElhassan Hala Ibrahim , Babeker Awad Mohammed
Published: March 2023

This study was carried out in MSI bleeding center, Ibn Sina teaching hospital in Khartoum State, Sudan, with in the period from June to October 2018. The Objectives: Of this study to compare between endoscopic variceal band ligation and injection sclerotherapy treatment among acute variceal bleeding patients. The study also aimed to assess the outcome of the treatment in term of the occurrence of post treatment re-bleeding within the first and sixth weeks after the treatment, and to assess if the type of the treatment used is associated with a difference in the outcome (occurrence of re-bleeding). The study covered all patients diagnosed with acute variceal bleeding attend the study area with in the study time period. 100 cases have been selected. A questionnaire used to collect data, which was computed and statistically analyzed by using SPSS version 25.0. The result of study found that participants were 83% male and 17 females, age of 40 – 60 years old (51%) followed by age group 20 to 40 years (25%) and 24% for the age group of more than 60 years old. 44% of the study group were from Aljazeera state, followed by Khartoum state which was 32% of the study group, and 23% from other states. 32% of participants were diagnosed by liver cirrhosis, while 67% of the study group diagnosed by schistosomiasis. 51% had EVL, and 49% had EIS. 4% of patients who had EVL, experienced rebleeding within six weeks, while 8% of the of patients who had EIS experienced rebleeding (4% within one week and 4% within six weeks). Mortality was not associated with type of treatment of acute variceal bleeding.The study Conclude that the recurrent bleeding was more associated with EIS than EVL, treatment by EVL is more effective than EIS in the matter of timing of rebleeding.
DETERMINACIÓN Y EFICACIA DEL PROGRAMA DE CULTURA DE LA UNIVERSIDAD AUTÓNOMA DE ZACATECAS
Authors: Gutiérrez Piña Francisco Javier
Published: March 2023

La presente investigación se llevó a cabo en la Universidad Autónoma de Zacatecas de la Unidad Académica de Cultura, cuyo propósito es conocer e identificar la práctica de enseñanza de los docentes, teniendo como objetivo, el que los estudiantes logren una formación integral para fomentar el desarrollo de las competencias sociales, con una cultura óptima de una vida saludable. Se muestran resultados obtenidos del desempeño docente académico, efectividad académica y expectativas de los estudiantes, en base a la opinión de los docentes que imparten la materia acerca de su desempeño y a la opinión de los estudiantes. Arrojando como resultado, que es importante que el programa de cultura física se cumpla favorablemente, con la indagación de la información adquirida, mediante el método de encuesta aplicada, para la mejora de los planes y programas de estudio. Es evidente el buen desempeño de los docentes y su efectividad académica debido a la constante capacitación en su área, eso muestra a una mayoría de estudiantes satisfechos. El estudio fue probado y hace evidente que mediante el método estadístico univariable, de análisis de confiabilidad y estadística descriptiva, por medio de una muestra, encontrando que los docentes que imparten la materia, solo un 50 % tienen buen desempeño y el otro 50 % tiene disposición de recibir capacitación continua.
A critical review on cancer vaccines: a promising immunotherapy
Authors: Verma Jaya , Warsame Caaisha , Goel Saurav
Published: March 2023

Cancer vaccines are a type of immunotherapy that can assist in educating the immune system about what cancer cells "look like" so that it can practively destroy them. A lack of an efficient adjuvant and insufficient efficacy hurdles the development of cancer vaccines based on tumor-associated antigens. To improve the efficacy of vaccines, a genetically engineered method was reviewed to achieving the codelivery of antigen and adjuvant to enhance immune responses. For more than 25 years, the development of cancer vaccines has been at the forefront of cancer research. The main emphasis has been on delivery strategies used to promote strong and long-lasting immune responses. Recent developments have made it possible to advance the engineering of therapeutic cancer vaccines. Target selection, vaccine development and techniques for overturning immunosuppressive systems used by malignancies have all made significant strides. To accelerate future developments and provide guidance to the prospective participants in this field, this commentary-style review provides an overview of recent developments in therapeutic, HPV and DNA cancer vaccines especially focusing on modeling and simulation advances to date.
REFORM ELECTION MANAGEMENT BUREAUCRACY TO MAKE A DEMOCRATIC ELECTION WITH INTEGRITY IN GORONTALO CITY
Authors: Mantali Idham , Abdussamad Juriko
Published: March 2023

During the implementation of the election, there were a number of problems, including the problem of human resources (HR). Attention to human resource management (HRM), namely election organizers is important to do, in anticipation of improving services and success in organizing the 2024 simultaneous elections in the Gorontalo City KPU work environment. Starting from this reason, it is necessary to take several approaches in order to improve the performance of the Gorontalo City KPU. First, the indicators for holding elections in realizing democratic elections with integrity. Second, bureaucratic reform within the Gorontalo City KPU.
MICRODATA STATISTICS FOR PUBLIC POLICY IN THE SOCIETY ERA 5.0
Authors: Prasad Arifiyanto
Published: March 2023

The era of society 5.0 brings a new concept so that people can enjoy technology in life comfortably. The problem faced today is about the gap in access to technology. The government needs to solve this problem by knowing the socio-economic conditions of the population as a whole. This research uses the type of library research. Based on the results of the 2021 Data Needs Survey, 92.52 percent of consumers use BPS data for development planning, monitoring, and evaluation. Seen by type, only 13.86 percent of BPS data consumers use micro data. In the context of government, micro-statistical data has been used to see development achievements. It is hoped that in the future, more public policies will be produced by various parties, supported by factual data and evidence.
A comparative study of Emotional Quotient with relation to Blood Groups among medical students of Punjab
Authors: Rida Naseer Ghouri, Muhammad Ehtisham, Shireen Jawed
Published: March 2023

Introduction: Emotional quotient (EQ) is the ability to monitor one’s own and other's feelings and emotions for managing relations appropriately. It implies critical thinking and has a key role in augmenting coherence between the team members to work at their full potential for achieving their goals and success in life. There are numerous lines of evidence that shows the influence of blood groups on skills and abilities related to EQ. Individuals with blood group B are active and passionate but those with blood group A are intelligent, loyal to their work, and have maudlin behavior. People with AB blood group are spiritual and O blood groupers have leadership character and least respond to stress. This study aims to compare the EQ-related skills and abilities among medical students with various blood groups.Materials and Methods: A cross-sectional study was conducted at Aziz Fatimah medical and dental college, Faisalabad. Validate proforma consisting of questions related to demographic, blood groups, and Emotional intelligence scale (EIS) for EQ-related questions was constructed on google form and the link was shared among 600 MBBS students of different medical colleges in Punjab, Pakistan. Only 566 students filled out complete proforma and fulfilled our inclusion criteria for enrollment in the study. Data were retrieved from the individual responses of google form and transformed on SPSS 22 for data analysis. P values less ≤ than 0.05 were considered significant.Results: The most frequent blood group was B positive (B+ve) in this study. The highest score concerning self-awareness was in blood group A positive (A+ve) followed by O positive (O+ve) with a P-value=0.017. The highest score was observed in B+ve in the case of empathy but the difference in mean score was not statistically significant (p value= 0.326). Similarly, blood group A+ve showed the highest value in self-motivation, emotional stability, and managing relations with P-values of 0.036, 0.005, and 0.046 respectively. Participants with the A+ve blood group were more value-oriented, committed, showed integrity and altruistic behavior with P-value=0.032, 0.000, 0.013, and 0.032 respectively.Conclusion: People with the blood group A+ve had the highest emotional quotient than other blood groups. Blood group B was the most prevalent blood group in our study population.
PEDAGOGIA LIBERTÁRIA E ESTUDOS ANARQUISTAS NA CONTEMPORANEIDADE
Authors: Nunes Eduardo , Sant'Anna Igor Rodrigues de
Published: March 2023

Este dossiê tem a intenção de trazer ao debate acadêmico uma discussão sobre a educação libertária ou anarquista na contemporaneidade. A princípio, podemos esclarecer que essa temática desde o século XIX vem sendo apresentada por diferentes pensadores, associações de trabalhadores, intelectuais e militantes que conseguiram, ao longo desse tempo, algumas conquistas na transformação da práxis pedagógica oficial e na legislação educacional que, apesar desses avanços, oferece poucos espaços para novas propostas libertárias já que esteve e ainda está sob a influência religiosa, estatal e de empresas, e sua atuação rígida e autoritária.
DESAFIO DAS CLASSES MULTISSERIADAS NAS ESCOLAS DO CAMPO NO MUNICIPIO DE REMANSO-BAHIA
Authors: Alves da Silva Alexsandro
Published: March 2023

RESUMO

Considerando as classes multisseriadas uma proposta pedagógica viável na Educação no Campo. A presente pesquisa oportuniza o fomento da discussão da diversidade de experiências, saberes e idades em uma sala de aula, que diante de um contexto local no campo marcado pelo baixo número de matrículas, comunidades com difícil acesso e até mesmo poucas salas de aulas possibilita agrupar alunos com séries e idades diferentes em uma mesma sala de aula. Haja vista que, as classes multisseriadas funcionam de maneira caótica no campo, onde falta infraestrutura, apoio pedagógico, salas de aulas lotadas por conta do fechamento de escolas e com isso alunos se deslocam para escolas polos, organizadas em núcleos, entre outros desafios que devem ser superados. Para o feito, utilizou-se como metodologia a pesquisa de campo e bibliográfica, identificando o engajamento político e pedagógico dos profissionais e sujeitos especificamente no município de Remanso-BA.  Para tanto torna  se imprescindível a valorização da multissérie como uma  prática  pedagógica  na Educação no Campo que  visa a permanência dos alunos no local em que moram, a partir de uma educação contextualizada de convivência com  a região. Salienta a importância de apoio pedagógico para professores que atuam nessa área,  material didático contextualizado e  estrutura física, acreditando na possibilidade de uma educação do campo com qualidade.

 

Palavras-chave: Educação no campo. Contexto. Multisseriada.
Morphometric and Meristic Characteristics of Paradise Threadfin (Polynemus paradiseus, Linnaeus 1758) in Sundarbans Estuary of Bangladesh
Authors: Md. Abu Naser  , Ahmmed Shawon , Parvin Shahanaj , Mondal Debashis Kumar , Islam Md. Latiful , Mahmud Yahia
Published: March 2023

Paradise threadfin a species from the Perciformes order and polynemidae family is one of the commercially important fishes in the south-west coastal region of Bangladesh. The study was conducted to know the morphometric and meristic characteristics of this fish species. A total 120 fish samples were collected from May 2021 to April 2022 ranging from 11.2-23.5 cm TL and 9.77-100.87 g BW. The fin formula was: D1: 7; D2: 14-16; P1: 15-16/VII; P2: 6-9; A: 14-15; C: 16-18. Off the LWRs equations, BW = 0.0028×FL3.55 was the well-expressed model depending on the largeness of the R2 value. The value of slope (b) ranging from 3.07 to 3.55 indicates a positive allometric growth pattern. The LLRs were highly correlated (R2≥0.917) and regression of TL vs FL, SL, and Pr2ndDL showed the best-fitted model among the 8 equations. The correlations among 45 different LLRs, 37 correlations showed a very high positive correlation (r = 0.91-0.99) whereas, eight LLRs exhibited a high positive correlation (r = 0.84-0.90). This study will support future studies for the management of P. paradiseus in the coastal regions and the mangrove adjacent rivers.
Effect of phytotherapy (Punica granatum L) on rabbits Oryctolagus cuniculus exposed to solvent xylene
Authors: Bendjeddou Mouna , Bakli Sabrina
Published: March 2023

Solvents have become a major threat to humanity, Xylene is one of the most used solvents in everyday life despite its toxicity, it had been used in many important products of human daily life such as paint, varnish, and many other products, but, there is what God created in nature "the pomegranate" which had considered among the most beneficial of medicinal plants. This work is based on the study of the remedial effect of pomegranate on the harmful effect of Xylene on certain reproductive parameters in rabbits of the species Oryctolagus Cuniculus. For four consecutive weeks, some rabbits received one dose of Xylene (0.5 ml/Kg), other rabbits received the same dose of Xylene and one dose of the juice of pomegranate (1ml/Kg) and controls received nothing. Our experience is based on the study of the weight of the reproductive organs: the testes and the epididymis, the study of the parameters of male fertility, and a histological study. The results show changes in the weight of the organs studied (testes and epididymis), and changes in male fertility parameters have been recorded. The hormone level (testosterone) has changed as well as a histological modification of the reproductive organs. Omit, these parameters have been corrected in their values due to the corrective effect of the pomegranate. In conclusion, this study demonstrated the adverse effects of Xylene exposure on reproduction, hormonal, and histological parameters. On the other hand, the pomegranate has a corrective effect on the previous parameters.
Characterization of a Set of Small Planets with TESS and CHEOPS and an Analysis of Photometric Performance
Authors: Oddo Dominic , Dragomir Diana , Brandeker Alexis , Osborn Hugh P. , Collins Karen , Stassun Keivan G. , Astudillo-Defru Nicola , Bieryla Allyson , Howell Steve B. , Ciardi David R. , Quinn Samuel , Almenara Jose M. , Briceño César , Collins Kevin I. , Colón Knicole D. , Conti Dennis M. , Crouzet Nicolas , Furlan Elise , Gan Tianjun , Gnilka Crystal L. , Goeke Robert F. , Gonzales Erica , Harris Mallory , Jenkins Jon M. , Jensen Eric L. N. , Latham David , Law Nicholas , Lund Michael B. , Mann Andrew W. , Massey Bob , Murgas Felipe , Ricker George , Relles Howard M. , Rowden Pamela , Schwarz Richard P. , Schlieder Joshua , Shporer Avi , Seager Sara , Srdoc Gregor , Torres Guillermo , Twicken Joseph D. , Vanderspek Roland , Winn Joshua N. , Ziegler Carl
Published: March 2023

The radius valley carries implications for how the atmospheres of small planets form and evolve, but this feature is visible only with highly precise characterizations of many small planets. We present the characterization of nine planets and one planet candidate with both NASA TESS and ESA CHEOPS observations, which adds to the overall population of planets bordering the radius valley. While five of our planets—TOI 118 b, TOI 262 b, TOI 455 b, TOI 560 b, and TOI 562 b—have already been published, we vet and validate transit signals as planetary using follow-up observations for four new TESS planets, including TOI 198 b, TOI 244 b, TOI 444 b, and TOI 470 b. While a three times increase in primary mirror size should mean that one CHEOPS transit yields an equivalent model uncertainty in transit depth as about nine TESS transits in the case that the star is equally as bright in both bands, we find that our CHEOPS transits typically yield uncertainties equivalent to between two and 12 TESS transits, averaging 5.9 equivalent transits. Therefore, we find that while our fits to CHEOPS transits provide overall lower uncertainties on transit depth and better precision relative to fits to TESS transits, our uncertainties for these fits do not always match expected predictions given photon-limited noise. We find no correlations between number of equivalent transits and any physical parameters, indicating that this behavior is not strictly systematic, but rather might be due to other factors such as in-transit gaps during CHEOPS visits or nonhomogeneous detrending of CHEOPS light curves.
Absolute Properties of the Oscillating Eclipsing Algol X Trianguli
Authors: Lee Jae Woo , Hong Kyeongsoo , Park Jang-Ho , Wolf Marek , Kim Dong-Jin
Published: March 2023

We report results from the TESS photometric data and new high-resolution spectra of the Algol system X Tri showing short-period pulsations. From the echelle spectra, the radial velocities of the eclipsing pair were measured, and the rotational rate and effective temperature of the primary star were obtained to be v
1sini = 84 ± 6 km s−1 and T
eff,1 = 7900 ± 110 K, respectively. The synthetic modeling of these observations implies that X Tri is in synchronous rotation and is physically linked to a visual companion TIC 28391715 at a separation of about 6.″5. The absolute parameters of our target star were accurately and directly determined to be M
1 = 2.137 ± 0.018 M
⊙, M
2 = 1.101 ± 0.010 M
⊙, R
1 = 1.664 ± 0.010 R
⊙, R
2 = 1.972 ± 0.010 R
⊙, L
1 = 9.67 ± 0.55 L
⊙, and L
2 = 2.16 ± 0.09 L
⊙. The phase-binned mean light curve was used to remove the binary effect from the observed TESS data. Multifrequency analysis of the residuals revealed 16 significant frequencies, of which the high-frequency signals between 37 day−1 and 48 day−1 can be considered probable pulsation modes. Their oscillation periods of 0.021−0.027 days and pulsation constants of 0.014−0.018 days are typical values of δ Sct variables. The overall results demonstrate that X Tri is an oEA star system consisting of a δ Sct primary and its lobe-filling companion in the semidetached configuration.
Planetesimal Formation by the Gravitational Instability of Dust Ring Structures
Authors: Takahashi Sanemichi Z. , Kokubo Eiichiro , Inutsuka Shu-ichiro
Published: March 2023

We investigate the gravitational instability (GI) of dust ring structures and the formation of planetesimals by their gravitational collapse. The normalized dispersion relation of a self-gravitating ring structure includes two parameters that are related to its width and line mass (the mass per unit length). We survey these parameters and calculate the growth rate and wavenumber. Additionally, we investigate the formation of planetesimals by growth of the GI of the ring that is formed by the growth of the secular GI of the protoplanetary disk. We adopt a massive, dust-rich disk as a disk model. We find the range of radii for fragmentation by the ring GI as a function of the width of the ring. The innermost radius for the ring GI is smaller for a smaller ring width. We also determine the range of the initial planetesimal mass resulting from the fragmentation of the ring GI. Our results indicate that the planetesimal mass can be as large as 1028 g at its birth after the fragmentation. It can be as low as about 1025 g if the ring width is 0.1% of the ring radius, and the lower limit increases with the ring width. Furthermore, we obtain approximate formulae for the upper and lower limits of the planetesimal mass. We predict that the planetesimals formed by the ring GI have prograde rotations because of the Coriolis force acting on the contracting dust. This is consistent with the fact that many trans-Neptunian binaries exhibit prograde rotation.
Cosmic-Ray Anisotropy Study by Means of Detection of Muon Bundles
Authors: Amelchakov M. B. , Bogdanov A. G. , Chiavassa A. , Dmitrieva A. N. , Kompaniets K. G. , Khokhlov S. S. , Kokoulin R. P. , Mannocchi G. , Petrukhin A. A. , Shutenko V. V. , Shulzhenko I. A. , Trinchero G. , Yashin I. I. , Yurina E. A.
Published: March 2023

In this work, we use muon bundles, which are formed in extensive air showers and detected at the ground level, as a tool for searching for anisotropy in high-energy cosmic rays. Such choice is explained by the penetrating ability of muons that allows them to retain the direction of primary particles with good accuracy. In 2012–2022, we performed long-term muon-bundle detection with the coordinate-tracking detector DECOR, which is a part of the Experimental Complex NEVOD (MEPhI, Moscow). To search for cosmic-ray anisotropy, muon bundles arriving at zenith angles in the range from 15° to 75° in the local coordinate system are used. During the entire period of data taking, about 14 million of such events have been accumulated. In this paper, we describe some methods developed in the Experimental Complex NEVOD and implemented in our research, including: the method for compensating for the influence of meteorological conditions on the intensity of muon bundles at the Earth’s surface, the method for accounting for the design features of the detector and the inhomogeneity of the detection efficiency for different directions, as well as the method for estimating the primary energies of cosmic rays. Here we present the results of the search for the dipole anisotropy of cosmic rays with energies in the PeV region and also compare them with the results obtained at other scientific facilities.
Evidence for the Operation of the Hanle and Magneto-optical Effects in the Scattering Polarization Signals Observed by CLASP2 across the Mg ii h and k Lines
Authors: Ishikawa Ryohko , Trujillo Bueno Javier , Alsina Ballester Ernest , Belluzzi Luca , del Pino Alemán Tanausú , McKenzie David E. , Auchère Frédéric , Kobayashi Ken , Okamoto Takenori J. , Rachmeler Laurel A. , Song Donguk
Published: March 2023

Radiative transfer investigations of the solar Mg ii h and k resonance lines around 280 nm have shown that, while their circular polarization (Stokes V) signals arise from the Zeeman effect, the linear polarization profiles (Stokes Q and U) are dominated by the scattering of anisotropic radiation and the Hanle and magneto-optical (MO) effects. Using the unprecedented observations of the Mg ii and Mn i resonance lines obtained by the Chromospheric LAyer Spectro-Polarimeter (CLASP2), here we investigate how the linear polarization signals at different wavelengths (i.e., at the center, and at the near and far wings of the k line) vary with the longitudinal component of the magnetic field (B

L
) at their approximate height of formation. The B

L
is estimated from the V signals in the aforementioned spectral lines. Particular attention is given to the following quantities that are expected to be influenced by the presence of magnetic fields through the Hanle and MO effects: the sign of the U signals, the total linear polarization amplitude (LP) and its direction (χ) with respect to a reference direction. We find that at the center and near wings of the k line, the behavior of these quantities is significantly different in the observed quiet and plage regions, and that both LP and χ seem to depend on B

L
. These observational results are indicative of the operation of the Hanle effect at the center of the k line and of the MO effects at the near wings of the k line.
[O iii] 5007 Å Emission Line Width as a Surrogate for σ
∗ in Type 1 AGNs?
Authors: Le 黎阮黄英 Huynh Anh N. , Xue 薛永泉 Yongquan , Lin 林晓鸷 Xiaozhi , Wang 王倚君 Yijun
Published: March 2023

We present a study of the relation between the [O iii] 5007 Å emission line width (σ
[OIII]) and stellar velocity dispersion (σ
*), utilizing a sample of 740 type 1 active galactic nuclei (AGNs) with high-quality spectra at redshift z < 1.0. We find the broad correlation between the core component of the [O iii] emission line width (

σ

[
O
III
,
core
]

) and σ
* with a scatter of 0.11 dex for the low redshift (z < 0.1) sample; for redshift (0.3 < z < 1.0) AGNs, the scatter is larger, being 0.16 dex. We also find that the Eddington ratio (L
bol/L
Edd) may play an important role in the discrepancies between

σ

[
O
III
,
core
]

and σ
*. As the L
bol/L
Edd increases,

σ

[
O
III
,
core
]

tends to be larger than σ
*. By classifying our local sample with different minor-to-major axis ratios, we find that σ
* is larger than

σ

[
O
III
,
core
]

for those edge-on spiral galaxies. In addition, we also find that the effects of outflow strength properties such as maximum outflow velocity (

V

max

) and the broader component of the [O iii] emission line width and line shift (σ
[OIII,out] and V
[OIII,out]) may play a major role in the discrepancies between

σ

[
O
III
,
core
]

and σ
*. The discrepancies between

σ

[
O
III
,
core
]

and σ
* are larger when

V

max

, V
[OIII,out], and σ
[OIII,out] increase. Our results show that the outflow strengths may have significant effects on the differences between narrow-line region gas and stellar kinematics in AGNs. We suggest that caution should be taken when using

σ

[
O
III
,
core
]

as a surrogate for σ
*. In addition, the substitute of

σ

[
O
III
,
core
]

for σ
* could be used only for low luminosity AGNs.
VLA Legacy Survey of Molecular Gas in Massive Star-forming Galaxies at High Redshift
Authors: Castillo Marta Frias , Hodge Jacqueline , Rybak Matus , van der Werf Paul , Smail Ian , Birkin Jack E. , Chen Chian-Chou , Chapman Scott C. , Hill Ryley , del P.Lagos Claudia , Liao Cheng-Lin , da Cunha Elisabete , Rivera Gabriela Calistro , Chen Jianhang , Jiménez-Andrade E. F. , Murphy Eric J. , Scott Douglas , Swinbank A. M. , Walter Fabian , Ivison R. J. , Dannerbauer Helmut
Published: March 2023

We present the initial results of an ongoing survey with the Karl G. Jansky Very Large Array targeting the CO(J = 1–0) transition in a sample of 30 submillimeter-selected, dusty star-forming galaxies (SFGs) at z = 2–5 with existing mid-J CO detections from the Atacama Large Millimeter/submillimeter Array and NOrthern Extended Millimeter Array, of which 17 have been fully observed. We detect CO(1–0) emission in 11 targets, along with three tentative (∼1.5σ–2σ) detections; three galaxies are undetected. Our results yield total molecular gas masses of 6–23 × 1010 (α
CO/1) M
⊙, with gas mass fractions, f
gas = M
mol/(M
*+M
mol), of 0.1–0.8 and a median depletion time of (140 ± 70) Myr. We find median CO excitation ratios of r
31 = 0.75 ± 0.39 and r
41 = 0.63 ± 0.44, with significant scatter. We find no significant correlation between the excitation ratio and a number of key parameters such as redshift, CO(1–0) line width, or ΣSFR. We only find a tentative positive correlation between r
41 and the star-forming efficiency, but we are limited by our small sample size. Finally, we compare our results to predictions from the SHARK semi-analytical model, finding a good agreement between the molecular gas masses, depletion times, and gas fractions of our sources and their SHARK counterparts. Our results highlight the heterogeneous nature of the most massive SFGs at high redshift, and the importance of CO(1–0) observations to robustly constrain their total molecular gas content and interstellar medium properties.
Spatially Resolved Stellar Populations of 0.3 < z < 6.0 Galaxies in WHL 0137–08 and MACS 0647+70 Clusters as Revealed by JWST: How Do Galaxies Grow and Quench over Cosmic Time?
Authors: Abdurro’uf  , Coe Dan , Jung Intae , Ferguson Henry C. , Brammer Gabriel , Iyer Kartheik G. , Bradley Larry D. , Dayal Pratika , Windhorst Rogier A. , Zitrin Adi , Meena Ashish Kumar , Oguri Masamune , Diego Jose M. , Kokorev Vasily , Dimauro Paola , Adamo Angela , Conselice Christopher J. , Welch Brian , Vanzella Eros , Hsiao Tiger Yu-Yang , Xu Xinfeng , Roy Namrata , Mulcahey Celia R.
Published: March 2023

We study the spatially resolved stellar populations of 444 galaxies at 0.3 < z < 6.0 in two clusters (WHL 0137–08 and MACS 0647+70) and a blank field, combining imaging data from the Hubble Space Telescope and JWST to perform spatially resolved spectral energy distribution (SED) modeling using piXedfit. The high spatial resolution of the imaging data combined with magnification from gravitational lensing in the cluster fields allows us to resolve a large fraction of our galaxies (109) to subkiloparsec scales. At redshifts around cosmic noon and higher (2.5 ≲ z ≲ 6.0), we find mass-doubling times to be independent of radius, inferred from flat specific star formation rate (sSFR) radial profiles and similarities between the half-mass and half-SFR radii. At lower redshifts (1.5 ≲ z ≲ 2.5), a significant fraction of our star-forming galaxies shows evidence for nuclear starbursts, inferred from a centrally elevated sSFR and a much smaller half-SFR radius compared to the half-mass radius. At later epochs, we find more galaxies suppress star formation in their centers but are still actively forming stars in the disk. Overall, these trends point toward a picture of inside-out galaxy growth consistent with theoretical models and simulations. We also observe a tight relationship between the central mass surface density and global stellar mass with ∼0.38 dex scatter. Our analysis demonstrates the potential of spatially resolved SED analysis with JWST data. Future analysis with larger samples will be able to further explore the assembly of galaxy mass and the growth of their structures.
Tracking Nonradial Outflows in Extreme Ultraviolet and White Light Solar Images
Authors: Alzate Nathalia , Morgan Huw , Di Matteo Simone
Published: March 2023

Understanding the solar corona requires knowledge of its dynamics through its various layers and subsequent connectivity to the heliosphere. This requires understanding the nature of the outflows and the physical transitions through the middle corona (∼1.5–6.0 R

s
). While this region is still inaccessible to in situ measurements, remote sensing observations are available, but their interpretation can be controversial due to line-of-sight effects and the nonradial motion of outflowing structures close to the Sun (≤3.0 R

s
). In this work, we describe a method to mitigate these challenges by generating nonradial height–time profiles of outflows by using advanced image processing techniques. The northern and southern boundaries of a large equatorial streamer during the 2008 solar minimum were identified in STEREO/SECCHI solar images, using two different methodologies based on thresholds of brightness and piecewise polynomial function fitting. To address line-of-sight issues, we used tomographic reconstruction of the 3D distribution of the coronal electron density based on SECCHI/COR2 images. Spectral analysis of the time series of the position angle of the streamer boundary revealed its oscillatory nature at some heights at 36–48 and 10.5–14.6 hr. Dividing the distance between the northern and southern streamer boundaries in equal parts at each height, we obtained nonradial height–time paths from which we generated nonradial profiles of corona/solar wind plasma outflow. We tracked outflows as they moved uninterruptedly from the Sun in EUVI, through COR1 and into COR2. Finally, we discuss the preliminary results of nonradial plane-of-sky velocities for a coronal mass ejection and two small-scale features.
Resolving the Bow Shock and Tail of the Cannonball Pulsar PSR J0002+6216
Authors: Kumar P. , Schinzel F. K. , Taylor G. B. , Kerr M. , Castro D. , Rau U. , Bhatnagar S.
Published: March 2023

We present X-ray and radio observations of the recently discovered bow-shock pulsar wind nebula (PWN) associated with PSR J0002+6216, characterizing the PWN morphology, which was unresolved in previous studies. The multifrequency, multiepoch Very Large Array (VLA) radio observations reveal a cometary tail trailing the pulsar and extending up to 5.′3, with multiple kinks along the emission. The presented radio continuum images from multiconfiguration broadband VLA observations are one of the first results from the application of multiterm multifrequency synthesis deconvolution in combination with the AWProject gridder implemented in the Common Astronomy Software Applications (CASA) package. The X-ray emission observed with Chandra extends to only 21″, fades quickly, and has some hot spots present along the extended radio emission. These kinks could indicate the presence of density variations in the local interstellar medium or turbulence. The bow-shock standoff distance estimates a small bow-shock region with a size of 0.003–0.009 pc, consistent with the pulsar spin-down power of

E

̇

= 1.51 × 1035 erg s−1 estimated from timing. The high-resolution radio image reveals the presence of an asymmetry in the bow-shock region, which is also present in the X-ray image. The broadband radio image shows an unusually steep spectrum along with a flat-spectrum sheath, which could indicate varying opacity or energy injection into the region. Spatially resolved X-ray spectra provide marginal evidence of synchrotron cooling along the extended tail. Our analysis of the X-ray data also shows that this pulsar has a low spin-down power and one of the lowest X-ray efficiencies observed in these objects.
The Apparent Absence of Forward Scattering in the HD 53143 Debris Disk
Authors: Stark Christopher C. , Ren Bin , MacGregor Meredith A. , Howard Ward S. , Hurt Spencer A. , Weinberger Alycia J. , Schneider Glenn , Choquet Elodie
Published: March 2023

HD 53143 is a mature Sun-like star and host to a broad disk of dusty debris, including a cold outer ring of planetesimals near 90 au. Unlike most other inclined debris disks imaged at visible wavelengths, the cold disk around HD 53143 appears as disconnected “arcs” of material, with no forward-scattering side detected to date. We present new, deeper Hubble Space Telescope Imaging Spectrograph coronagraphic observations of the HD 53143 debris disk and show that the forward-scattering side of the disk remains undetected. By fitting our KLIP-reduced observations via forward modeling with an optically thin disk model, we show that fitting the visible wavelength images with an azimuthally symmetric disk with unconstrained orientation results in an unphysical edge-on orientation that is at odds with recent ALMA observations, while constraining the orientation to that observed by ALMA results in nearly isotropically scattering dust. We show that the HD 53143 host star exhibits significant stellar variations due to spot rotation and revisit age estimates for this system.
Accretion-induced Collapse of Dark Matter-admixed Rotating White Dwarfs: Dynamics and Gravitational-wave Signals
Authors: Chan Ho-Sang , Chu Ming-chung , Leung Shing-Chi
Published: March 2023

We present two-dimensional hydrodynamic simulations of the accretion-induced collapse (AIC) of rotating white dwarfs admixed with an extended component of dark matter (DM) comprising sub-gigaelectronvolt degenerate fermionic DM particles. We find that the DM component follows the collapse of the normal matter (NM) component to become a bound DM core. Thus, we demonstrate how a DM-admixed neutron star could form through DM-admixed AIC (DMAIC) for the first time, with the dynamics of DM taken into account. The gravitational-wave (GW) signature from the DMAIC shows distinctive features. In the diffusive DM limit, the DM admixture indirectly suppresses the post-bounce spectral peak of the NM GWs. In the compact DM limit, the collapse dynamics of the DM in a Milky Way event generate GWs that are strong enough to be detectable by Advanced LIGO as continuous low-frequency (<1000 Hz) signals after the NM core bounce. Our study not only is the first-ever computation of GW from a collapsing DM object but also provides the key features to identify DM in AIC events through future GW detections.
First Ejection from the PSR B1259-63/LS 2883 High Mass Gamma-Ray Binary Detected During the 2021–2024 Binary Cycle
Authors: Hare Jeremy , Pavlov George G. , Kargaltsev Oleg , Garmire Gordon P.
Published: March 2023

LS 2883/PSR B1259-63 is a high mass, eccentric gamma-ray binary that has previously been observed to eject X-ray emitting material. We report the results of recent Chandra observations near binary apastron in which a new X-ray emitting clump of matter was detected. The clump has a high projected velocity of v
⊥ ≈ 0.07c and hard X-ray spectrum, which fits an absorbed power-law model with Γ = 1.1 ± 0.3. Although clumps with similar velocities and spectra were detected in some of the previous binary cycles, no resolved clumps were seen near apastron in the preceding cycle of 2017–2021.
Prioritization of quarantine pest list for the Caribbean using a multi criteria decision approach
Authors: Saravanakumar Duraisamy , Bartholomew Ezra S. , Seepersad Govind , Gore-Francis Janil , Goldsmith Juliet , Ramnanan Naitram , Chang Peta Gaye , Bridgemohan Puran , Sewsaran Renita , Medrano-Cabral Sardis , Morrison St. Sanya
Published: March 2023

Quarantine plant pests are socially, economically and environmentally important due to their impact on food security, human health, global trade, and crop production costs. The increase in global trade and tourism, frequent occurrence of natural disasters and climate changes have exacerbated the rate of entry, establishment and spread of plant pests regionally and globally. It has therefore become exigent to develop a list of pests of quarantine importance at the regional and national levels to prioritize and allocate limited available resources to manage the associated risks. In the present study, the Technical Committee on the Formulation and Prioritization of a Regional Priority Pest List for the Caribbean, in collaboration with the National Plant Protection Organization of the Caribbean countries and the United States Department of Agriculture - Animal and Plant Health Inspection Service (USDA-APHIS), developed and prioritized a quarantine pest list using a multi-criteria decision-making approach. The technical committee successfully evolved the process in 2014 and 2018 and developed a list of the top 10 pests of quarantine importance for the Caribbean region, employing the Delphi Technique (DT) and Analytical Hierarchy Process (AHP) through the assignment of criteria that are relevant to the region. The Mediterranean fruit fly (Ceratitis capitata), frosty pod rot (Moniliophthora roreri) and the tomato leaf miner (Tuta absoluta) listed as top quarantine pest threats were subsequently detected in the region. This exercise guided the authorities in advance to allocate resources and develop response plans including capacity building for surveillance and detection of priority pests. This has demonstrated the significance and appropriateness of the multi-criteria decision approach to determine priority pest lists and prepare the region for development of better management practices.
Enfants et écrans durant les six premières années de la vie à travers le suivi de la cohorte Elfe
Authors: Diter Kevin , Octobre Sylvie
Published: March 2023

Le rapport des enfants aux écrans suscite autant de suspicions que de conseils éducatifs, insistant dans les deux cas sur les risques d’addictions, de développements de pathologies ou de comportements déviants. Aux paniques morales anciennes sur la télévision s’ajoutent désormais celles qui portent sur le numérique. Le présent travail prolonge de quatre ans l’analyse des temps passés devant les écrans par des enfants en bas âge (de la naissance à l’âge de 2 ans) à partir de la cohorte de naissance de l’étude longitudinale française (Elfe). Constituée d’un panel de 18 000 enfants nés en 2011, elle décrit, à l’échelle nationale, l’équipement des foyers et la fréquence d’exposition des enfants aux différents écrans. À 5 ans et demi, les écrans sont présents dans le quotidien de tous les enfants et la consommation d’écran unique (celui de la télévision) diminue au profit d’un monde multi-écrans, dans lequel la télévision demeure centrale. Les rapports des enfants à la télévision et aux écrans numériques (ordinateur, tablette, smartphone) se distinguent toutefois nettement durant les six premières années de la vie, ce qui témoigne d’une appropriation différente des normes éducatives selon les milieux sociaux, les configurations familiales, les pratiques éducatives ou les rapports aux écrans des parents eux-mêmes.
Témoignage d’un travail d’articulation entre réhabilitation psycho-sociale et thérapie institutionnelle par le biais du jeu thérapeutique du Michael’s Game
Authors: Pichon Colin
Published: March 2023

Depuis au moins 20 ans en France, la mutation du regard sur le handicap a amorcé des changements législatifs et de politique publique, dont une des caractéristiques est l’émergence de nouvelles méthodes sous tendant l’accompagnement du handicap. Parmi elles, la réhabilitation psycho-sociale (RPS). Dans cet article, nous aborderons comment l’injonction institutionnelle de réorienter selon l’approche de la Réhabilitation un service d’accueil de jour (AJ) fondé sur la psychothérapie institutionnelle a amené l’équipe à développer un dispositif qui tente de métisser les deux approches en développant l’atelier du Jeu Michael’s Game (MG). Nous aborderons succinctement le fonctionnement de l’AJ dans son ancrage historique à la thérapie institutionnelle, puis la construction toujours en cours d’une intégration de la Réhabilitation notamment par l’articulation des deux approches au travers du jeu MG.
The role of techno-economic factors for net zero carbon emissions in Pakistan
Authors: Raza Muhammad Amir , Aman M. M. , Abro Abdul Ghani , Shahid Muhammad , Ara Darakhshan , Waseer Tufail Ahmed , Tunio Mohsin Ali , Tunio Nadeem Ahmed , Soomro Shakir Ali , Jumani Touqeer Ahmed
Published: March 2023

The Government of Pakistan has established clean energy transition goals in the national Alternative and Renewable Energy (ARE) Policy. The goal of this policy is to increase the 30% capacity of green energy in total energy mix by 2030. In this regard, the aim of this study is to develop a de-carbonization plan for achieving net zero emissions through the deployment of a green energy system for the period 2021 to 2040 by incorporating the ARE policy targets. The Low Emissions Analysis Platform (LEAP®) software is used for finding the unidirectional causality among gross domestic product, population within the country, energy demand, renewable energy production and CO2 emissions for Pakistan. The results revealed that energy production of 564.16 TWh is enough to meet the energy demand of 480.10 TWh with CO2 emissions of 22.19 million metric tons, having a population of 242.1 million people and GDP growth rate of 5.8%, in the year 2040 in Pakistan. The share of green energy production is 535.07 TWh, which can be utilized fully for meeting energy demand in the country, and almost zero emissions will produce till 2040. CO2 emissions produced by burning natural gas were 20.64 million metric tons in 2020, which then reduced to 3.25 million metric tons in 2040. CO2 emissions produced by burning furnace oil are also reduced from 4.19 million metric tons in 2020 to 2.06 million metric tons in 2040. CO2 emissions produced by burning coal were 24.85 million metric tons in 2020, which then reduced to 16.88 million metric tons in 2040. Energy demand is directly related to the population and GDP of the country, while renewable utilization is inversely proportional to carbon emissions. The declining trend of carbon emissions in Pakistan would help to achieve net zero emissions targets by mid-century. This technique would bring prosperity in the development of a clean, green and sustainable environment.