bluuebunny/crossref_metadata_2025 huggingface dataset:
Efectos de dosis creciente de fertilizante mineral con diferentes distancias de siembra en el cultivo desoja (Glycine max L.)
Authors: Florentin Figueredo Nilsa , Lugo Pereira Wilfrido Daniel , Sánchez Jara Raul , López Ávalos Derlys Fernando , Da Silva Oviedo Modesto Osmar , Mongelos Barrios Carlos Alberto , Morel López Eulalio , Caballero Casuriaga Oscar
Published: December 2022

El trabajo de investigación tuvo como objetivo general, evaluar el efecto diferentes distancias entre plantas con dosis creciente de fertilizantes minerales en cultivo de soja (Glycine max L.). Se realizó en la localidad de San Marcos km 34 de la Ruta V Gral. Bernardino Caballero, distante a 7 Km de la Facultad de Ciencias Agrarias/Universidad Nacional de Concepción, sede Horqueta. El diseño experimental utilizado fue el de Bloques Completos al Azar (DBCA), con un arreglo factorial de 2x5 (dos distancias entre plantas y cinco dosis de fertilizante mineral). Los tratamientos utilizados fueron: factor A: (0,10 cm/pl y 0,20 cm/pl); factor B: (0, 100, 200, 300 y 400   kg.ha-1 de 00-30-20). Los datos obtenidos, se sometieron a análisis de varianza, comparación de medias por el test de Tukey y análisis de regresión. Los tratamientos aplicados influyeron significativamente para el número de vainas por planta, peso de mil granos y rendimiento del cultivo; pero no se observó diferencias en cuanto al número de granos por vaina. Se concluye que la distancia de siembra de 10 cm entre  plantas (Factor A) y 300 kg ha-1 de fertilizante mineral (Factor B), presentó mayor rendimiento   en el cultivo de soja.
Prednosti provedbe e-kolokvija iz engleskoga jezika struke
Authors: Bošnjak Terzić Brankica , Breka Olinka , Kereković Snježana
Published: December 2022

U radu se predstavlja e-kolegij iz tehničkoga engleskog jezika, osmišljen na jednome tehničkom fakultetu Sveučilišta u Zagrebu, s posebnim osvrtom na e-kolokvij i prednosti provedbe e-kolokvija u okviru e-kolegija. Provedeno je istraživanje čiji je cilj bio utvrditi stavove studenata o sadržajima koji se nude na e-kolegiju, tj. o dodatnim online zadatcima za uvježbavanje nastavnoga sadržaja koji se na kraju semestra ispituje e-kolokvijem te o probnome e-kolokviju, kao i prikupiti i analizirati iskustva studenata s pisanjem e-kolokvija. Rad donosi i usporedbu rezultata koje su studenti postigli na e-kolokviju s rezultatima tradicionalnoga kolokvija (papirolovka) koji je proveden godinu ranije. Rezultati su istraživanja pokazali da studenti imaju pozitivan stav prema e-vrednovanju i ostalim aktivnostima koje su ponuđene u okviru e-kolegija, a oblik su formativnoga vrednovanja. Povratne informacije koje su studenti dobili nakon rješavanja dodatnih zadataka i probnoga e-kolokvija pomogle su im osvijestiti sraz između njihova trenutnoga znanja i vještina te znanja i vještina potrebnih za uspješno rješavanje e-kolokvija.
Comparison of Speed, Agility and Reactive Agility Performance in Soccer Players
Authors: EGESOY Halit
Published: December 2022

Futbolun talepleri son zamanlarda önemli ölçüde değişmiş ve artmıştır. Günümüzde bir futbol müsabakası sırasında, oyuncuların daha fazla güce sahip olmaları, yüksek şiddet gerektiren hareketleri daha sık ve sayıda yapmaları ve daha uzun mesafeleri kat etmeleri gerekmektedir. Bu çalışmanın amacı futbolcuların sprint, çeviklik ve reaktif çeviklik performansları arasındaki farklılıkları araştırmaktır. Çalışmaya toplam 59 erkek futbolcu (14-19 yaşlar arası) gönüllü olarak katılmıştır. Oyuncular yaşlarına göre 15 yaş altı (U-15; n = 20), 17 yaş altı (U-17; n = 20) ve 19 yaş altı (U-19; n = 19) oyuncular olarak 3 grupta değerlendirilmiştir. Katılımcılara 10-30m sprint, çeviklik t testi ve reaktif çeviklik testleri uygulanmıştır. Tüm verilerin normallik testi varsayımını karşılayıp karşılamadığını doğrulamak için Kolmogorov-Smirnov testi kullanılmıştır. Çalışma sonuçlarının karşılaştırmaları ise tek yönlü ANOVA ile yapılmıştır. ANOVA sonuçları, anlamlı bir grup etkisi gösterdiğinde, gruplar arası farklılıkları belirlemede post-hoc Bonferroni testi kullanılmıştır. Anlamlı farklılık tespit edilen tek yönlü varyans analizi deseninde değişkenler arasındaki ilişkinin gücünü hesaplamak için eta-kare (etki büyüklüğü) (η2) katsayısından faydalanılmıştır. Grup karşılaştırmalarında, katılımcıların 10 m sprint (F= 6,29, p
The Concept of Morality in National Athletes: A Phenomenological Approach
Authors: GÖRGÜT İlyas , TUTKUN Erkut
Published: December 2022

The purpose of this study is to find out young elite athletes’ views on the concept of moral because of being a role model in society with their values and moral structures. In this study qualitative method was used and as a research design, psychological phenomenology approach, which is one of the phenomenological patterns, was preferred. The sample group of the study consists of 11 young national team athletes who were determined with maximum variation sampling method, which is one of the purposive sampling methods. With these athletes, individual interviews for each participant which lasted for an average of 45 minutes within the context of semi structured interview technique were conducted. In accordance with the permission taken from the participants, their answers were recorded and then textualized. Descriptive and content analysis method were used to analyse the data. According to athletes who assess moral in terms of behaviour and protection, sports can contribute to individuals’ moral development. While athletes have individual values, and values related with the team and opponent, events which sometimes motivate athletes positively and which sometimes influence them negatively occur in sport environment. In addition, according to athletes, first of all the family, then coaches and environment have responsibilities in the moral development of an athlete.
COST RECOVERY ANALYSIS IN PRODUCTION SHARING CONTRACT IN UPSTREAM OIL AND GAS INDUSTRY (STUDY ON GAS UPSTREAM INDUSTRIES INDONESIA)
Authors: Arifin Kasman , Hidayat Dina
Published: December 2022

This study aims to: 1) analyze empirically and test the effect of cost recovery in the Production Sharing Contract (Oil and Gas Production Sharing). 2) empirically analyze and test the effect of cost recovery in the upstream Oil and Gas Industry on State Revenues. The unit of analysis of this research is the upstream oil and gas industry managed by the Indonesian government with a Production Sharing Contract system with 44 companies or contract operator cooperatives. The population includes those who work as operators of cooperation contract contractors and SKK MIGAS with 62 manager levels, 51 professionals and 18 university researchers. And the researchers also used secondary data in SKK MIGAS in the 1984-20019 period. This research uses a qualitative approach, and the analysis of the data used is descriptive analysis, because the data analysis is done not to accept or reject hypotheses, but in the form of descriptions of observed symptoms, which are not always in the form of numbers or coefficients between variables . However, the emphasis is not on hypothesis testing, but on efforts to answer research questions through formal and argumentative ways. The results of the study indicate that there is a relation between the Cost Recovery component and the terminology in the Production Sharing Contract in the Upstream Oil and Gas Industry in Indonesia . By placing the right cost post on cost recovery will be able to reduce production costs from the Cooperation Contract Contractor (KKKS).
Role of Firm Size and Profitability on Capital Structures and Its Impact Over Firm Value
Authors: Sudrajat Jajat , Setiyawati Hari
Published: December 2022

This research has a purpose to reveal and evaluate the significant impact from firm size to capital structure; Profitability to capital structure; capital structure to firm value; firm size to firm value; profitability to firm value; and those indirect effects of firm size and capital structure towards firm value; and those indirect effects of profitability along with capital structure to firm value. This research population was 178 manufacturing companies, while the research sample was 13 automotive subsector companies and its components which registered on the IDX by the sampling technique were purposive sampling methods. The research method that was used was quantitative methods, while the analysis model used regression analysis model with t-test and sobel test. These research results illustrated that firm size had a significant affect on capital structure; profitability had a negative and significant affect on capital structure; capital structure has no significant affect on firm value. firm size had a significant affect on firm value; profitability has no effect and is insignificant to firm value; there is no indirect and insignificant affect occurred between firm size, capital structure and firm value; There is no indirect and insignificant affect that occurs between profitability, capital structure and firm value.
Islamic Principles in Efforts to Prevent Accounting Fraud
Authors: Amin Asbi , Hamid Habbe Abdul , Wahab Abdul
Published: December 2022

Weak internal control is generally caused by the internal environment and the external environment. Among several types of fraud. Financial statement fraud is the type of fraud that has the most detrimental effect of fraud. Islam has set values, concepts in regulating ethics and regulations so that this life runs according to rules and harmony. Economic activities in Islam are not only oriented to worldly and contemporary interests, but also to ukhrawi benefits. Spirituality is the greatest meaning and purpose in a person's life which is considered capable of providing a more positive reciprocal relationship between the organization and its members, and enabling everyone to work together and achieve the same goals. Therefore, to avoid fraud, Islam threatens a lot and warns in its argument that there will be retaliation for cheating. Religiosity with the principles of faith, morals and trust is the main capital for preventing fraud.
FAKTOR PENGEMBANGAN POTENSI DIRI: MINAT/KEGEMARAN, LINGKUNGAN DAN SELF DISCLOSURE (SUATU KAJIAN STUDI LITERATUR MANAJEMEN PENDIDIKAN DAN ILMU SOSIAL)
Authors: Alfazani M. Rosyid , Khoirunisa A Dinda
Published: December 2022

Riset terdahulu atau riset yang relevan sangat penting dalam suatu riset atau artikel ilmiah. Riset terdahulu atau riset yang relevan berfungsi untuk memperkuat teori dan penomena hubungan atau pengaruh antar variable. Artikel ini mereview Faktor-faktor yang mempengaruhi pengembangan potensi diri, yaitu: Minat/Kegemaran, Lingkungan dan Self Disclosure, suatu studi literatur manajemen pendidikan dan ilmu sosial. Hasil artikel literature review ini adalah:  1) Minat/kegemaran berpengaruh terhadap Pengembangan Potensi Diri; 2) Lingkungan berpengaruh terhadap Pengembangan Potensi Diri; dan 3) Self Disclosure berpengaruh terhadap Pengembangan Potensi Diri.
KEPUASAN MAHASISWA TERHADAP LAYANAN BIDANG KEMAHASISWAAN
Authors: Nuraini Eka
Published: December 2022

Penelitian ini bertujuan untuk mengetahui kepuasan mahasiswa terhadap layanan bidang kemahasiswaan. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kuantitatif. Penelitian dilaksanakan di Politeknik Belitung. Subjek penelitian ini adalah 65 mahasiswa Politeknik Belitung. Teknik pengumpulan data dengan menggunakan angket. Data angket yang terkumpul dianalisis dengan teknik statistik deskriptif. Analisis data dilakukan melalui perhitungan frekuensi dan persentase yang kemudian akan dikonversi menjadi informasi secara kualitatif. Hasil penelitian menunjukkan bahwa: (1) Kepuasan mahasiswa terhadap layanan bidang penalaran dan kreativitas adalah 76,22% dengan katagori tinggi. (2) Kepuasan mahasiswa terhadap layanan bidang kesejahteraan adalah 76,86% dengan katagori tinggi.(3) Kepuasan mahasiswa terhadap layanan bidang minat, bakat, dan organisasi kemahasiswaan adalah 76,28% dengan katagori tinggi. (4) Kepuasan mahasiswa terhadap layanan bidang pengembangan mental, spiritual kebangsaan adalah 72,88% dengan katagori tinggi. (5) Kepuasan mahasiswa terhadap layanan bidang penyelarasan dan pengembangan karir adalah 66,09% dengan katagori tinggi.
GENDER DIFFERENCES IN THE IMPACT OF LEADER-MEMBER EXCHANGE QUALITY ON JOB EMBEDDEDNESS AND TURNOVER INTENTION
Authors: Wahyudi Triyono Arief , Hendryadi Hendryadi , Iskandar Donant Alananto , Suryani Suryani , Gustiawan Deni
Published: December 2022

This study aims to explore the gender differences in the relationships between leader-member exchange (LMX), job embeddedness, and turnover intention. Hypotheses formulation was conducted by integrating conservation of resources (COR) theory and social role theory, and data were collected from 462 respondents who were employed in various sectors in Indonesia. Data analyses included confirmatory factor analysis to evaluate the measurement model, followed by mediation-moderation analysis by using the PROCESS macro. As hypothesized, LMX showed a positive impact on job embeddedness and a negative impact on turnover intention. Job embeddedness was negatively associated with turnover intention, partially mediating the relationship between LMX quality and turnover intention. This study showed that gender moderated the relationships between LMX, job embeddedness, and turnover intention; this was particularly evident in the female participants. This study contributes to the literature on the significance of LMX quality and job embeddedness by exploring gender-specific roles, thus strengthening the existing knowledge base.
CAN GOLD HEDGE THE RISK OF FEAR SENTIMENTS?
Authors: Su Chi-Wei , Liu Yiru , Chang Tsangyao , Umar Muhammad
Published: December 2022

This paper investigates the interaction between fear sentiments and gold price (GP) by utilising the full-sample and sub-sample rolling-window bootstrap causality tests. It can be observed that GP can hedge the risk of fear sentiments in a certain period. The result supports the inter-temporal capital asset pricing model, which demonstrates that the increase in fear sentiments can promote the rise in gold prices. Due to excessive panic, fear sentiments also have negative effects on GP. In contrast, GP positively impacts fear sentiments, which manifests that market sentiment can be forecasted based on changes in the gold market. In addition, the negative influences from GP to fear sentiments indicate there are diversified assets that can be alternatives to gold. In the complicated international environment and volatile market sentiments, investors can benefit by optimising their asset portfolio. The governments can mitigate the adverse effects of large fluctuations in both markets by grasping the movement of gold and fear sentiments.
The Sensitivity of Eclipse Mapping to Planetary Rotation
Authors: Adams Arthur D. , Rauscher Emily
Published: December 2022

Mapping exoplanets across phases and during secondary eclipse is a powerful technique for characterizing Hot Jupiters in emission. Since these planets are expected to rotate about axes normal to their orbital planes, with rotation periods synchronized with their orbital periods, mapping provides a direct correspondence between the orbital phase and planetary longitude. We develop a framework to understand the information content of planets where their rotation states are not well constrained, by constructing bases of light curves across different rotation rates and obliquities that are orthogonal in integrated flux across the secondary eclipse. These demonstrate that brightness variation during eclipse may arise from a variety of rotation rates, obliquities, and map structures, requiring priors to properly disentangle each of these components. By modeling eclipse observations of the Warm Jupiter HAT-P-18b we demonstrate that, at a signal-to-noise equivalent to ∼10 orbits with JWST, confusion about map structure is likely a concern only at the upper physical limits of possible rotation rates. Even without priors, one may nevertheless be able to put an order-of-magnitude constraint on rotation rate by determining at what rates the fitted map complexity is minimized, a prescription whose efficacy increases if out-of-eclipse data are available to isolate the effects of rotation. Finally, in the limit of maps with longitudinal symmetry, the projected obliquity in the plane of the sky determines the information available during eclipse, ranging from nondetections of structure to a basic constraint on hemispherical asymmetry and orientation depending on the obliquity angle.
Photometric and Spectroscopic Study of the EXor-like Eruptive Young Star Gaia19fct
Authors: Park Sunkyung , Kóspál Ágnes , Ábrahám Péter , Cruz-Sáenz de Miera Fernando , Fiorellino Eleonora , Siwak Michał , Nagy Zsófia , Giannini Teresa , Carini Roberta , Szabó Zsófia Marianna , Lee Jeong-Eun , Lee Jae-Joon , Vitali Fabrizio , Kun Mária , Cseh Borbála , Krezinger Máté , Kriskovics Levente , Ordasi András , Pál András , Szakáts Róbert , Vida Krisztián , Vinkó József
Published: December 2022

Gaia19fct is one of the Gaia-alerted eruptive young stars that has undergone several brightening events. We conducted monitoring observations using multifilter optical and near-infrared photometry, as well as near-infrared spectroscopy, to understand the physical properties of Gaia19fct and investigate whether it fits into the historically defined two classes. We present the analyses of light curves, color variations, spectral lines, and CO modeling. The light curves show at least five brightening events since 2015, and the multifilter color evolutions are mostly gray. The gray evolution indicates that bursts are triggered by mechanisms other than extinction. Our near-infrared spectra exhibit both absorption and emission lines and show time variability throughout our observations. We found lower rotational velocity and lower temperature from the near-infrared atomic absorption lines than from the optical lines, suggesting that Gaia19fct has a Keplerian rotating disk. The CO overtone features show a superposition of absorption and emission components, which is unlike other young stellar objects. We modeled the CO lines, and the result suggests that the emission and absorption components are formed in different regions. We found that although Gaia19fct exhibits characteristics of both types of eruptive young stars, FU Orionis–type objects and EX Lupi–type objects, it shows more similarity with EXors in general.
Lost in Space: Companions’ Fatal Dance around Massive Dying Stars
Authors: Regály Zsolt , Fröhlich Viktória , Vinkó József
Published: December 2022

Discoveries of planet and stellar remnant hosting pulsars challenge our understanding, as the violent supernova explosion that forms the pulsar presumably destabilizes the system. Type II supernova explosions lead to the formation of eccentric bound systems, free-floating planets, neutron stars, pulsars, and white dwarfs. Analytical and numerical studies of high mass-loss rate systems based on perturbation theory so far have focused mainly on planet-star systems. In this paper, we extend our understanding of the fate of planet-star and binary systems by assuming a homologous envelope expansion model using a plausible ejection velocity (1000–10,000 km s−1), and envelope and neutron star masses. The investigation covers secondary masses of 1–10 M
J for planetary companions and 1–20 M
⊙ for stellar companions. We conduct and analyze over 2.5 million simulations assuming different semimajor axes (2.23–100 au), eccentricities (0–0.8), and true anomalies (0–2π) for the companion. In a homologous expansion scenario, we confirm that the most probable outcome of the explosion is the destabilization of the system, while the retention of a bound system requires a highly eccentric primordial orbit. In general, a higher ejecta velocity results in a lower eccentricity orbit independent of secondary mass. The explanation of close-in pulsar planets requires exotic formation scenarios, rather than survival through the type II supernova explosion model. Postexplosion bound star systems gain a peculiar velocity (<100 km s−1), even though the explosion model is symmetric. The applied numerical model allows us to derive velocity components for dissociating systems. The peculiar velocities of free-floating planets and stellar corpses are in the range of 10−6–275 km s−1.
The Star Formation Rate of the Milky Way as Seen by Herschel
Authors: Elia D. , Molinari S. , Schisano E. , Soler J. D. , Merello M. , Russeil D. , Veneziani M. , Zavagno A. , Noriega-Crespo A. , Olmi L. , Benedettini M. , Hennebelle P. , Klessen R. S. , Leurini S. , Paladini R. , Pezzuto S. , Traficante A. , Eden D. J. , Martin P. G. , Sormani M. , Coletta A. , Colman T. , Plume R. , Maruccia Y. , Mininni C. , Liu S. J.
Published: December 2022

We present a new derivation of the Milky Way’s current star formation rate (SFR) based on the data of the Herschel InfraRed Galactic Plane Survey (Hi-GAL). We estimate the distribution of the SFR across the Galactic plane from the star-forming clumps identified in the Hi-GAL survey and calculate the total SFR from the sum of their contributions. The estimate of the global SFR amounts to 2.0 ± 0.7 M
⊙ yr−1, of which 1.7 ± 0.6 M
⊙ yr−1 coming from clumps with reliable heliocentric distance assignment. This value is in general agreement with estimates found in the literature of last decades. The profile of SFR density averaged in Galactocentric rings is found to be qualitatively similar to others previously computed, with a peak corresponding to the Central Molecular Zone and another one around Galactocentric radius R
gal ∼ 5 kpc, followed by an exponential decrease as

log
(

Σ

SFR

/

[

M

⊙

yr

−
1

kpc

−
2

]
)
=
a

R

gal

/

[
kpc
]
+
b

, with a = −0.28 ± 0.01. In this regard, the fraction of SFR produced within and outside the solar circle is 84% and 16%, respectively; the fraction corresponding to the far outer Galaxy (R
gal > 13.5 kpc) is only 1%. We also find that, for R
gal > 3 kpc, our data follow a power law as a function of density, similarly to the Kennicutt–Schmidt relation. Finally, we compare the distribution of the SFR density across the face-on Galactic plane and those of median parameters, such as temperature, luminosity/mass ratio, and bolometric temperature, describing the evolutionary stage of Hi-GAL clumps. We found no clear correlation between the SFR and the clump evolutionary stage.
Demographics of the M-star Multiple Population in the Orion Nebula Cluster
Authors: De Furio Matthew , Liu Christopher , Meyer Michael R. , Reiter Megan , Kraus Adam , Dupuy Trent , Monnier John
Published: December 2022

We present updated results constraining multiplicity demographics for the stellar population of the Orion Nebula Cluster (ONC, a high-mass, high-density star-forming region), across primary masses 0.08–0.7 M
⊙. Our study utilizes archival Hubble Space Telescope data obtained with the Advanced Camera for Surveys using multiple filters (GO-10246). Previous multiplicity surveys in low-mass, low-density associations like Taurus identify an excess of companions to low-mass stars roughly twice that of the Galactic field and find the mass ratio distribution consistent with the field. Previously, we found the companion frequency to low-mass stars in the ONC is consistent with the Galactic field over mass ratios = 0.6–1.0 and projected separations = 30–160 au, without placing constraints on the mass ratio distribution. In this study, we investigate the companion population of the ONC with a double point-spread function (PSF) fitting algorithm sensitive to separations larger than 10 au (0.″025) using empirical PSF models. We identified 44 companions (14 new), and with a Bayesian analysis we estimate the companion frequency to low-mass stars in the ONC = 0.13

−
0.03

+
0.05

and the index of the power-law fit to the mass ratio distribution = 2.08

−
0.85

+
1.03

over all mass ratios and projected separations of 10–200 au. We find the companion frequency in the ONC is consistent with the Galactic field population, likely from states of high transient stellar density, and a probability of 0.002 that it is consistent with that of Taurus. We also find the ONC mass ratio distribution is consistent with the field and Taurus, potentially indicative of its primordial nature, a direct outcome of the star formation process.
Implications of High-density, High-temperature Ridges Observed in Some Two-ribbon Flares
Authors: Longcope Dana , Qiu Jiong
Published: December 2022

Several two-ribbon solar flares observed on the disk, notably including the Bastille flare of 2000 July 14, show an extended ridge of plasma running along the loop tops of the post-reconnection arcade. In that and two more recent examples, the ridge is visible in emission by Fe xxiv at roughly 17 MK, with a high, steadily increasing emission measure suggesting an expanding column of very dense plasma. We find that ridges are consistent with overhead views of long, vertical plasma sheets, such as seen above certain limb flares. Those vertical features show enhanced temperature and density over their entire lengths, making explanations in terms of termination shocks and evaporation collision seem less plausible. We use observations of several ridge events to argue in favor of compression and heating by slow magnetosonic shocks in the reconnection outflow. In this scenario, the ridge is built up as retracting flux piles hot, compressed plasma atop the post-flare arcade. Thanks to the overhead perspective offered by the ridge observations, we are able to measure the reconnection rate and show it to be consistent with the rate of increase in column emission measure across the ridge. This consistency supports the hypothesis that slow shocks and retraction compress the plasma seen in ridges, vertical plasma sheets, and possibly the high-temperature fans through which post-reconnection downflows are observed. Such a unified picture of these diverse features enhances our understanding of the role played by magnetic reconnection in solar flares.
Hubble Space Telescope Observations of Tadpole Galaxies Kiso3867, SBS0, SBS1, and UM461
Authors: Elmegreen Debra Meloy , Elmegreen Bruce G. , Gallagher John S. , Kotulla Ralf , Almeida Jorge Sánchez , Muñoz-Tuñón Casiana , Caon Nicola , Rafelski Marc , Sunnquist Ben , Revalski Mitchell , Andersen Morten
Published: December 2022

Tadpole galaxies are metal-poor dwarfs with typically one dominant star-forming region, giving them a head–tail structure when inclined. A metallicity drop in the head suggests that gas accretion with even lower metallicity stimulated the star formation. Here we present multiband Hubble Space Telescope WFC3 and Advanced Camera for Surveys images of four nearby (<25 Mpc) tadpoles, SBS0, SBS1, Kiso3867, and UM461, selected for their clear metallicity drops shown in previous spectroscopic studies. The properties of the star complexes and compact clusters are measured. Each galaxy contains from three to 10 young stellar complexes with 103–105
M
⊙ of stars ∼3–10 Myr old. Between the complexes, the disk has a typical age of ∼3 Gyr. Numerous star clusters cover the galaxies, both inside and outside the complexes. The combined cluster mass function, made by normalizing the masses and counts before stacking, is a power law with a slope of −1.12 ± 0.14 on a log–log plot and the combined distribution function of cluster lifetime decays with age as t
−0.65±0.24. A comparison between the summed theoretical Lyman continuum (LyC) emission from all the clusters, given their masses and ages, is comparable to or exceeds the LyC needed to excite the observed Hα in some galaxies, suggesting LyC absorption by dust or undetected gas in the halo, or perhaps galaxy escape.
Tidal Distortions as a Bottleneck on Constraining Exoplanet Compositions
Authors: Berardo David , de Wit Julien
Published: December 2022

Improvements in the number of confirmed planets and the precision of observations imply a need to better understand subtle effects that may bias interpretations of exoplanet observations. One such effect is the distortion of a short period planet by its host star, affecting its derived density. We extend the work of Burton et al., Correia, and others, using a gravitational potential formulation to a sample of nearly 200 planets with periods less than 3 days. We find five planets exhibiting density variations of >10% and as many as 20 planets with deviations >5%. We derive an analytic approximation for this deviation as a function of the orbital period, transit depth, and mass ratio between the planet and host star, allowing for rapid determination of such tidal effects. We find that current density error bars are typically larger than tidal deviations but that reducing the uncertainty on transit depth and radial velocity (RV) amplitude by a factor of 3 causes tidal effects to dominate density errors (>50%) in >40% of planets in our sample, implying that in the near future upgraded observational precision will cause shape deviations to become a bottleneck with regards to analysis of exoplanet compositions. These two parameters are found to dominate uncertainties compared to errors on stellar mass and radius. We identify a group of eight planets (including WASP-19 b, HAT-P-7 b, and WASP-12 b) for which current density uncertainties are as much as 4× smaller than the potential shift due to tides, implying a possible 4σ bias on their density estimates.
High-precision Nuclear Chronometer for the Cosmos
Authors: Wu 吴 X. H. 鑫辉 , Zhao 赵 P. W. 鹏巍 , Zhang 张 S. Q. 双全 , Meng 孟 J. 杰
Published: December 2022

Nuclear chronometers, which predict the ages of the oldest stars by comparing the present and initial abundances of long-lived radioactive nuclides, provide an independent dating technique for the cosmos. The idea of synchronizing Th/X, U/X, and Th/U chronometers can impose stringent constraints on the astrophysical conditions in the r-process simulations, giving rise to the Th-U-X chronometer. It is found that the astrophysical uncertainties of nuclear cosmochronology are significantly reduced from more than ±2 billion years to about 0.3 billion years. The Th-U-X chronometer is then applied to estimate the ages of the six metal-poor stars with observed uranium abundances, and the predicted ages are compatible with the cosmic age of 13.8 billion years predicted from the cosmic microwave background radiation but contradict the cosmic age of 11.4 billion years from the gravitational lens measurement.
A remarkable new family of stinging wasps from the Cretaceous of Myanmar and China (Hymenoptera, Aculeata)
Authors: Lepeco Anderson , Barbosa Diego N. , Melo Gabriel A. R.
Published: December 2022

Burmese amber provides a unique window to the Cretaceous entomofauna, being the most prolific source of fossil insects for the period. Presently, about 61% of the Hymenoptera described from amber deposits in Myanmar are stinging wasps (Aculeata), including eight families known solely from Burmese amber. In the present work we describe the aculeate family †Trifionychidaefam. nov., as well as three new genera: †Prionaspidiongen. nov., including †Prionaspidion brevidenssp. nov. and †P. nanussp. nov.; †Trifionyxgen. nov., including †Trifionyx pilosussp. nov.; and †Trifionyximusgen. nov., including †Trifionyximus cracenssp. nov. We also reinterpret the fossil genus †Mirabythus, described based on rock impressions from the Yixian formation in China and originally attributed to Scolebythidae. †Mirabythus is moved to the new family, based mainly on the characteristic mandible; the large clypeus with a series of small denticles on the apical margin; the frons protruding over lateral portions of clypeus, directing the antennal sockets downwards below ocular level; and the presence of nine flagellomeres. Based on resemblances with fossil impressions attributed to †Bethylonymidae, we tentatively include the new family within the superfamily †Bethylonymoidea. Discovery of †Trifionychidaefam. nov. adds a novel lineage to the pool of aculeate families from the Cretaceous which did not survive to the present day.
Integrative approach resolves the taxonomy of Eulaema cingulata (Hymenoptera, Apidae), an important pollinator in the Neotropics
Authors: de Oliveira Andrade Tamires , dos Santos Ramos Kelli , López-Uribe Margarita M. , Branstetter Michael G. , Brandão Carlos Roberto F.
Published: December 2022

Species delimitation is a rich scientific field that often uses different sources of data to identify independently evolving lineages that might be recognized as species. Here, we use an integrative approach based on morphometrics, COI-barcoding, and phylogenomics using ultraconserved elements (UCEs) to investigate whether the orchid bee species Eulaema cingulata (Fabricius, 1804) and E. pseudocingulata Oliveira, 2006 represent a single variable taxon or two different species. We analyzed 126 specimens across the geographical range of these nominal species to test species hypotheses using the general lineage concept. We found substantial overlap in wing and head morphometrics, and both taxa form one phylogenetic lineage based on COI mitochondrial and UCE data. Our results support the recognition of both forms as members of the same evolutionary unit and E. pseudocingulata is herein recognized as a junior synonym of E. cingulata.
L’envers de la guerre contre la drogue
Authors: Iglesias Nieto Raúl , Gaussens Pierre
Published: December 2022

FR – Cet article présente les résultats d’un travail de recherche exploratoire sur le déplacement forcé au Mexique, à partir du cas de sa région nord-est, frontalière avec les États-Unis, dans laquelle plusieurs municipalités ont été touchées par des dynamiques de violence et de dépeuplement ces vingt dernières années (2000-2020), en pleine « guerre de la drogue ». Basée sur une méthodologie quantitative, l’étude développe une analyse spatiale et statistique qui met en relation le déplacement forcé, produit de la violence criminelle, et la présence d’importants gisements d’hydrocarbures dans cette région. Le principal résultat est que les municipalités qui apparaissent comme étant les plus affectées par la violence se trouveraient dans l’aire du Bassin de Burgos, qui contient la plus grande réserve de gaz de schiste du pays.
La violence de l’injonction. La prescription de l’autonomie
Authors: Ciccone Albert , Widart Frédéric , Pétry Philippe
Published: December 2022

La montée actuelle du paradigme de la promotion de l’autonomie et de l’indépendance du sujet constitue une violence dans la mesure où la subjectivité se trouve réduite au développement des compétences, plutôt qu’à la prise en compte de la manière personnelle dont le sujet se débrouille avec la pathologie. Ce paradigme transforme également le travail des professionnels qui se trouve réduit à des techniques de promotion des compétences. Plusieurs situations cliniques illustrent ce propos
Aux origines nietzschéennes des ambiguïtés du concept d’entrepreneur : Schumpeter lecteur de Nietzsche
Authors: Colin-Jaeger Nathanaël , Wiedemann Étienne
Published: December 2022

La figure de l’entrepreneur est aujourd’hui utilisée dans une grande variété de discours publics. Ce travail cherche à remonter à l’une des sources théoriques de la constitution de cette figure : la théorie de l’entrepreneur de Schumpeter (1911a et 1911b). Ce retour montre que Schumpeter, dans son contexte intellectuel et théorique, est amené à importer une anthropologie philosophique en économie, celle de Nietzsche, auteur largement lu dans l’Autriche du début du xx e  siècle. En transposant, à l’intérieur de sa théorie économique, certaines caractéristiques majeures du grand homme créatif nietzschéen dans la figure de l’entrepreneur, Schumpeter développe une explication originale de la nature dynamique du marché et de l’évolution économique. Néanmoins il importe aussi de Nietzsche une série d’ambiguïtés, notamment en ce qui concerne l’origine de l’exceptionnalité individuelle de l’entrepreneur, et plus particulièrement de sa puissance créatrice. Une seconde ambiguïté est très largement héritée, qui concerne l’extension du modèle de l’individu entrepreneur : constitue-t-il une théorie de l’action valable pour tous les individus ou uniquement pour un type d’individus particuliers ? Comment concilier exceptionnalité de l’entrepreneur et norme d’un entreprenariat pour tous ? La dernière partie de ce travail s’attache ainsi à explorer ces ambiguïtés, qui apparaissent chez Schumpeter et ses successeurs, notamment Israël Kirzner. Codes JEL  : B13, B25, B31, B40.
Injustices organisationnelles et réactions comportementales négatives : le rôle médiateur des émotions
Authors: Nyare Jeanick , Gangloff Bernard
Published: December 2022

Si de nombreux travaux ont examiné les réactions comportementales négatives à des situations d’injustices organisationnelles, très peu ont introduit les émotions comme variables médiatrices. Au surplus, ces travaux ont été réalisés dans les pays du nord et il n’en existe pas, à notre connaissance, issus des pays du sud, comme le Gabon. La présente étude a pour objectif d’y remédier. 215 hommes et femmes, cadres et employés des secteurs privés et publics gabonais, ont répondu à un questionnaire de 56 items portant sur la justice organisationnelle, sur des comportements antisociaux et enfin sur deux émotions négatives (colère et honte face à des humiliations). Les résultats montrent que les quatre facteurs de justice organisationnelle sont positivement corrélés entre eux, de même que la colère est positivement corrélée avec la honte. On observe également que chacune des dimensions de justice organisationnelle présente des liens positifs significatifs avec la colère et la honte. Par ailleurs, si la justice distributive n’est corrélée à aucune variable comportementale, chacun des trois autres facteurs de justice présente ce type de liens. Les analyses de régressions multiples indiquent aussi que plusieurs dimensions d’injustice organisationnelle, tout comme la colère et la honte, prédisent des comportements négatifs. Enfin, les analyses de médiations mettent en évidence que la colère comme la honte médiatisent plusieurs relations entre justice organisationnelle et réactions comportementales négatives. Ces résultats sont mis en rapport avec les données issues des études empiriques réalisées dans les pays du nord. Des implications pratiques et des études complémentaires sont enfin proposées.
Nuevos documentos inéditos sobre Miguel de Cervantes y su presencia en Carmona como comisario real de abastos
Authors: Cabello Núñez José
Published: December 2022

Miguel de Cervantes Saavedra estuvo en la sevillana ciudad de Carmona en 1590, y quizás también en 1593, cuando prestaba sus servicios al rey Felipe II y a sus proveedores generales en calidad de comisario real de abastos, con el fin de obtener aceite, trigo y otras provisiones para el abastecimiento de las Armadas Reales. A finales del siglo XIX, Jorge Bonsor, arqueólogo e historiador inglés, halló en el Archivo Municipal de Carmona una carta autógrafa de Cervantes fechada el 12 de febrero de 1590. En ella, el comisario solicitaba la colaboración del Concejo de la ciudad para conseguir 4000 arrobas de aceite. A mediados del siglo XX, Luis Astrana Marín descubrió entre los protocolos notariales de Carmona una veintena de documentos, hasta entonces inéditos, relacionados con dicha comisión. Ahora, setenta años después que Astrana, hemos podido localizar en el Archivo Histórico Provincial de Sevilla otros doce documentos notariales, hasta ahora inéditos, relacionados con Cervantes y Carmona, que nos ofrecen más detalles sobre la recogida de aceite de 1590, los cuales se publican en esta revista por vez primera.
Lo sobrenatural en Los trabajos de Persiles y Sigismunda frente a la censura
Authors: García-Pérez Marcos
Published: December 2022

En este trabajo estudio los elementos sobrenaturales que aparecen a lo largo de Los trabajos de Persiles y Sigismunda, de Miguel de Cervantes, y la censura en la edición de Lisboa (1617) por parte de Tomás de São Domingos. El cotejo entre el tratamiento que hace Cervantes de lo sobrenatural y de las censuras practicadas en la edición lisboeta permitirá obtener conclusiones sobre cómo un lector de la época interpretaba el texto con base en una ideología específica.
Cervantes en los diarios de Andrés Trapiello
Authors: Luque Amo Álvaro
Published: December 2022

En este artículo analizo la presencia de Cervantes en los diarios de Andrés Trapiello. En el Salón de pasos perdidos, título que aglutina veintitrés tomos de diarios publicados de 1990 a 2021, Trapiello suele explicitar la influencia de otros autores en el desarrollo de su obra, y entre ellos destaca Cervantes, que ha estado presente en toda su producción literaria. En estas páginas estudio los diferentes elementos narrativos, tales como el estilo, el tono o la construcción de los personajes, en los que esta influencia adquiere mayor relevancia, lo que contribuirá a aclarar la idiosincrasia literaria de estos diarios personales.
Web Based Online Hybrid Teaching Method of Network Music Course
Authors: Ma Chunyu , Zitar Raed Abu
Published: December 2022

Today, with the rapid development of online course teaching, the demand for online courses is increasing day by day, and the demand for online mixed teaching of online music courses is also increasing rapidly. In the context of big data, the lengthy personalized screening process of users has become one of the problems to be solved. Based on Web data mining, an improved algorithm of hybrid hierarchical recommendation algorithm and genetic algorithm is used in the experiment, and compared with the other two algorithms in the experiment. The experimental results show that the average accuracy of the improved algorithm is 79.63% in the limited training times, and has better adaptability. It can be applied to the online hybrid teaching recommendation and screening of online music courses in dynamic changes.
Online Music Teaching Resource Sharing Algorithm Based on Blockchain Technology
Authors: Li Bing
Published: December 2022

Blockchain technology provides technical support for cloud computing data sharing in data storage and data access, and ensures the safe and effective transmission of data sharing. The online music teaching resource platform based on blockchain technology faces the problems of low data throughput, large delay and unstable performance. Therefore, a blockchain-based sharing algorithm (Practical Byzantine Fault Tolerance, PBFT), PBFT algorithm is proposed. Consensus allows 1/3 of cheating points in the blockchain, and authenticated transactions are confirmed through a confirmation mechanism to ensure data security. However, the traditional PBFT algorithm lacks an efficient node joining and exiting mechanism, and has problems such as low data throughput. Therefore, on the basis of the traditional PBFT algorithm, a blockchain sharing algorithm (WBFT) that improves the weighted Byzantine fault tolerance mechanism is proposed. A weighting mechanism is added in the consensus process. After the consensus, the node behavior will dynamically adjust the weights to reduce the adverse impact of malicious nodes on the data and improve the overall data sharing effect. Experimental performance tests show that the improved WBFT algorithm performs best in multi-algorithm delay performance tests. In the data average throughput test, the performance of the improved WBFT algorithm is 20.2% higher than that of the traditional PBFT algorithm. In the security test, the improved WBFT algorithm has the best performance. The proposed improved WBFT algorithm can well meet the needs of building an online music teaching resource sharing platform. The research content has important reference value for the application of blockchain technology in the education industry, and is conducive to promoting the development of modern education.
Design of a Virtual Reality-Based Learning System for Spoken English
Authors: Wang Yang , Mughaid Ala
Published: December 2022

Virtual reality is an important technology that is fast gaining global attention in different spheres of life particularly in the education sector. In view of this, this study designs a distance learning system for spoken English based on virtual reality, firstly, the overall design of the teaching system and the hardware and software of the system are designed, then a double-supervised signal convolutional neural network algorithm is proposed for the speech data recognition function of the system, and finally the testing of the system performance and the simulation analysis of the algorithm are carried out. The results show that the step response curve of the system designed in this study is gradually stabilized after 11s of operation, although there are certain fluctuations in the initial stage; the speaking scoring function of the system is more influenced by the sampling period T. When T is at 3 and 4, the speaking scoring speed of the teaching system is 33s~42s, which is significantly better than other intervals. The number of information submission and feedback was approximately the same and the interaction activity was very high after students used the system designed in this study, reflecting that student were more motivated to learn spoken English after using the system. The final loss rate using Goog Le Net is smaller and more convergent compared to the loss rate of the other three CNN models trained. The convolutional neural network algorithm constructed in this study has a very high accuracy rate in the recognition of English speech data, which is significantly better than other recognition models. To a certain extent, this study can provide guidance for the construction of English-speaking distance learning system, and more needs of users can be considered in future research.
Design of a Visual Training System for Software Engineering Education Based on Knowledge Graphs
Authors: Hou Quanjun
Published: December 2022

With the increase of the content and difficulty of software engineering education courses, software engineering education visual training system came into being, but the technology is not mature at present, and the representation learning algorithm part of the visual training system needs to be optimized. In order to solve this problem, the research proposes to optimize the take model by using the trans representation algorithm, and embed the optimized knowledge map into the new software engineering education visual training system. The performance of TEKEE model is verified by comparing TEKEE model with Trans E model, Trans D model and TEKED model. The experimental results show that the MR value of the optimized TEKEE model is 62, Hits@10 The value is 0.92, which is better than the other three representation learning models. In terms of the bearing capacity test of the visual training system, the response time of the business operation of the research and design training system is 1.22 seconds, and the CPU occupancy of the application server is 12.5%, all of which are normal. The experimental results show that the performance of the optimized TEKEE model has indeed been greatly improved, and the visual training system composed of the optimized knowledge map has a very good carrying capacity, which can provide a new idea for the software engineering education and training system.