bluuebunny/crossref_metadata_2025 huggingface dataset:
SOLID EYELINER FORMULATION CONTAIN CLITORIA TERNATE L. EXTRACT IN PH ACID AND ALKALI AND IN VIVO IRRITATION TEST
Authors: Lee Linawaty , Djamil Ratna , Rahmat Deni
Published: September 2023

Clitoria ternatea flowers contain blue anthocyanin that has potential as natural coloring. The purpose of this study was to obtain an eyeliner product containing natural coloring that is safe, stable, and can replace hazardous chemicals. Clitoria ternatea flowers were extracted by kinetic maceration with 70% ethanol. The obtained extract was subjected to standard quality tests, phytochemical screening, and determination of total anthocyanin content and antioxidant activity (DPPH assay). Eyeliner-containing extracts were prepared in three pH variations (acidic, neutral, and alkaline). These three types of eyeliner preparations were subjected to an irritation test on shaved male albino white rabbit skin. stability test using the cycle test method, hardness, break point, and melting point were also performed. The results showed that Clitoria ternatea extract contains 0.2187% anthocyanin, has an antioxidant activity IC50 of104.7 µg/mL, and is free of heavy metals. The eyeliner contained Clitoria ternatea extract was dark blue when applied to the skin. Eyeliner preparations were stable in three stability cycle tests. The irritation test on the male albino rabbit skin showed no irritation. Clitorial ternatea extract can be used as natural coloring in eyeliner preparation.
Keywords: Butterfly pea, Clitoria ternatea L., Anthocyanin, Antioxidant, Eyeliner.
INTERDISCIPLINARIDADE E MATEMÁTICA: UM PANORAMA DA PRODUÇÃO CIENTÍFICA POR MEIO DE UMA REVISÃO NARRATIVA
Authors: Pinheiro Magnus Kelly de Oliveira , Borges Ana Patrícia Vargas
Published: September 2023

O artigo tem como objetivo realizar um levantamento dos trabalhos práticos interdisciplinares, com foco na matemática, para posteriormente apresentar o estado da arte dessas publicações através de uma revisão narrativa. Para alcançar tal objetivo faremos uso da bibliometria para garimpar os textos e de uma revisão narrativa para apresentarmos o estado da arte dessas publicações. Os resultados sugerem que o número de trabalhos teóricos supera em muito os práticos. Também nos permite inferir que a pratica interdisciplinar da matemática com as demais disciplinas é possível e vantajosa para todos os envolvidos.
SALA DE AULA INVERTIDA: UMA PROPOSTA DE
INTERVENÇÃO BASEADA NA APRENDIZAGEM POR OBRAS
Authors: Saraiva Victor Leoni Cardoso , Pereira Helder de Lucena , Silva Adriano Lima da
Published: September 2023

O presente artigo tem a finalidade de discutir acerca das possibilidades educacionais geradas pela metodologia conhecida como sala de aula invertida, ou flipped classroom, que vem ganhado espaço em uma nova dinâmica acadêmica que visa reposicionar o papel do aluno dentro da estrutura hierárquica colegial, distanciando-se, do ensino tradicional tal qual conhecíamos até então, no qual, o professor era a única voz ativa e o livro didático o único instrumento do saber. Para aprofundarmos a discussão e atingirmos sua eficácia, foi idealizada uma proposta a ser aplicada no curso técnico de Artes Visuais, com uma abordagem que evidencia a importância e vantagens da integração coletiva e da união da teoria junto a prática na construção de um saber significativo.
Spor Bilimleri Fakültesi Öğrencilerinin Duygusal Zekâ Düzeylerinin Belirlenmesi
Authors: SOMOĞLU Mustafa Barış , ZENGİN Samet
Published: September 2023

Duygusal zekâsı yüksek bireylerin, öz-saygısı, duygusal farkındalıkları, sorumluluk duyguları, empati kurma yetenekleri, iletişim kurma ve kendini ifade edebilme becerisi, sosyal sorumluluk üstlenme, duygularını kontrol etme, problem çözme yetisi yüksek mutlu ve iyimser bireyler olduğu ifade edilmektedir. Bu düşünceden hareketle geleceğe yön verecek ve genç nesillerin yetiştirilmesinde sorumluluk sahibi olan spor bilimleri öğrencilerinin duygusal zekâ düzeylerinin belirlenen değişkenlerle incelenmesi araştırmanın amacını oluşturmaktadır. Araştırma 2022-2023 öğretim yılında Trabzon Üniversitesi Spor Bilimleri Fakültesinde öğrenim gören katılımcılara “Duygusal Zekâ Ölçeği” uygulanarak gerçekleştirilmiştir. Araştırmada betimsel istatistik sonuçlarından elde edilen bilgilerle birlikte, normallik varsayımı için basıklık ve çarpıklık değerleri, anlamlılık değeri p
Trading-off Church Participation for Political Engagement: A Necessity for Political Effectiveness and Influence?
Authors: Sarkodie-Addo Samuel , Opoku John Kwaku
Published: September 2023

Active involvement in the church can provide a religious capital for political engagements but at the same time, it can prevent or limit the political participation of church members. Many studies have concentrated on the factors which either promote or discourage political mobilisation and participation by churches. However, there is little work on the impact of political involvement on church participation, and this paper seeks to contribute to filling this gap. It provides unique data and contributes to the broader discourse on church and politics. Using a Mixed-Method approach, this study was conducted with five selected churches in Ghana. The study’s main objective was to examine the involvement of Christian politicians in church activities, and the churches’ appreciation of the implications of political engagement for church participation. The paper contends that politics requires quality time investments. Christian politicians may sometimes have to trade-off time in church for political activities in order to be effective and to influence the political sphere. On the other hand, they face a lot of challenges and may need the church to stand by them. Churches that want their members to go into politics need to understand this. And therefore, they should not ‘abandon’ them but rather support, encourage and keep close contact with them.

Keywords: Politics, Church, Engagement, Civic Skills, Time.
Can(n)on Fodder
Authors: Leeder Murray
Published: September 2023

All things Nosferatu have migrated far beyond their roots inGerman Expressionist cinema. Stacey Abbott refers to bestial and monstrous vampire depictions as, ‘a separate strand – or strain if you will – that has run parallel to thedominant form of the genre since its first emergence in the cinema’ in Nosferatu (2016: 181), and Nosferatu-inspired makeup has often been employed to signal this ‘strain’.It is perhaps inevitable that the bizarre otherworldliness of Orlok’s look led it to be borrowed for, not just alien others, but actual aliens. One could point to the titular ‘Space Vampire’ in an episode of Buck Rogers in the 25th Century (1979–81), the Strangers in Dark City (1998), the Pau’ansin Star Wars: Episode 6: Revenge of the Sith (2005) and the Remans, introduced in Star Trek Nemesis (2002; henceforth Nemesis). This article concerns Nemesis and its curious new creation, the Remans, arguing that their hideous Orlok-derived appearance helps to Other them to the degree that they elicit next to no sympathy either in-narrative or from theaudience, resulting in their failure to establish a significant presence in the broader Star Trek franchise.
‘[F]illed with goddamned soil from the fields of the Black Death’
Authors: der Lippe Anya Heise-von
Published: September 2023

In the following, I will attempt to show how some of the uncanny materialities in Nosferatu work towards a destabilisation of the anthropocentric perspective in what is essentially a narrative of the death of the human. The opening titles of the film oscillate between realism – thenarrative claims to be a recording of the mass deaths in Wisborg in the year 1838 and the monstrous supernatural, but the text also draws attention to the film’s own power of (de)materialisation: as the second title card claims, just speaking the word ‘Nosferatu’ can make ‘the pictures oflife fade to shadow’ and call ‘haunting dreams’ to ‘climb forth from your heart and feed on your blood’. However, while I would agree that the vampire becomes shadow, the reverse argument is also true: the specific materiality in and of the vampire film imbues the shadows with a sense of material reality.Nosferatu introduces a number of objects that hark back to Dracula and/or point forward to other adaptations of the same material. Mirrors, portraits (both Murnau’s Count Orlok and Francis Ford Coppola’s Count Dracula, for instance, admire a portrait of Ellen/Mina) and written documents play an important role, as do various writing materials used in different ways to convey important information, produce a sense of authenticity, as well as create an atmosphere of mystery and suspense. Rather than catalogue multiple objects here, I would like to focus on the function of materiality in the film by presenting some of the most strikingexamples – including printed materials and devices and beginning with an exploration of the materiality of the vampiric body and its connection to the materiality of blood and earth.
Most Rotational Variables Dominated by a Single Bright Feature Are α
2 CVn Stars
Authors: Heinze A. N. , Flewelling Heather , Huber Mark E.
Published: September 2023

We previously reported a rare class of variable star light curves isolated from a sample of 4.7 million candidate variables from the ATLAS survey. Dubbed “UCBH” light curves, they have broad minima and narrow, symmetrical maxima, with typical periods of 1–10 days and amplitudes of 0.05–0.20 mag. They maintain constant amplitude, shape, and phase coherence over multiple years but do not match any known class of pulsating variables. A localized bright spot near the equator of a rotating star will produce a UCBH-type light curve for most viewing geometries. Most stars that exhibit rotational variability caused primarily by a single bright feature should therefore appear as UCBH stars, although a rotating bright spot is not the only thing that could produce a UCBH-type light curve. We have spectroscopically investigated 14 UCBH stars and found 10 of them to be Ap/Bp stars: A-type or B-type stars with greatly enhanced photospheric abundances of specific heavy elements. Rotationally variable Ap/Bp stars are referred to as α
2 CVn variables. Most ATLAS UCBH stars are therefore α
2 CVn stars, although only a minority of α
2 CVn stars in the literature have UCBH light curves. The fact that α
2 CVn stars dominate the UCBH class suggests that lone bright spots with sufficient size and contrast develop more readily on Ap/Bp stars than on any other type. The α
2 CVn UCBH stars may be characterized by a specific magnetic field topology, making them intriguing targets for future Zeeman–Doppler imaging.
The JWST Hubble Sequence: The Rest-frame Optical Evolution of Galaxy Structure at 1.5 < z < 6.5
Authors: Ferreira Leonardo , Conselice Christopher J. , Sazonova Elizaveta , Ferrari Fabricio , Caruana Joseph , Tohill Clár-Bríd , Lucatelli Geferson , Adams Nathan , Irodotou Dimitrios , Marshall Madeline A. , Roper Will J. , Lovell Christopher C. , Verma Aprajita , Austin Duncan , Trussler James , Wilkins Stephen M.
Published: September 2023

We present results on the morphological and structural evolution of a total of 3956 galaxies observed with JWST at 1.5 < z < 6.5 in the JWST CEERS observations that overlap with the CANDELS EGS field. This is the biggest visually classified sample observed with JWST yet, ∼20 times larger than previous studies, and allows us to examine in detail how galaxy structure has changed over this critical epoch. All sources were classified by six individual classifiers using a simple classification scheme aimed at producing disk/spheroid/peculiar classifications, whereby we determine how the relative number of these morphologies has evolved since the Universe’s first billion years. Additionally, we explore structural and quantitative morphology measurements using Morfometryka, and show that galaxies with M
* > 109
M
⊙ at z > 3 are not dominated by irregular and peculiar structures, either visually or quantitatively, as previously thought. We find a strong dominance of morphologically selected disk galaxies up to z = 6 in this mass range. We also find that the stellar mass and star formation rate densities are dominated by disk galaxies up to z ∼ 6, demonstrating that most stars in the Universe were likely formed in a disk galaxy. We compare our results to theory to show that the fraction of types we find is predicted by cosmological simulations, and that the Hubble Sequence was already in place as early as one billion years after the Big Bang. Additionally, we make our visual classifications public for the community.
Comprehensive Radiative MHD Simulations of Eruptive Flares above Collisional Polarity Inversion Lines
Authors: Rempel Matthias , Chintzoglou Georgios , Cheung Mark C. M. , Fan Yuhong , Kleint Lucia
Published: September 2023

We present a new simulation setup using the MURaM radiative MHD code that allows the study of the formation of collisional polarity inversion lines (cPILs) in the photosphere and the coronal response including flares. In this scheme, we start with a bipolar sunspot configuration and set the spots on collision course by imposing the appropriate velocity field at the footpoints in the subphotospheric boundary. We produce different setups with the same initial spot separation by varying physical parameters such as the collision speed and minimum collision distance. While all setups lead to the formation of an EUV and X-ray sigmoid structure, only the cases with a close passing of the spots cause flares and mass eruptions. The energy release is in the 1–2 × 1031 erg range, putting the simulated flares into the upper C-class to lower M-class range of GOES X-ray 1–8 Å flux. While the setup with the more distant passing of the spots does not lead to a flare, the corona is nonetheless substantially heated, suggesting noneruptive energy-release mechanisms. We focus our discussion on two particular setups that differ in spot coherence and resulting cPIL length persistence. We find different timings in the transition from a sheared magnetic arcade to magnetic flux rope (MFR); the setup with a large length but shorter duration cPIL produces a MFR during the eruption, while the MFR is preexisting in the setup with a large length and longer duration cPIL. While both result in flares of comparable strength and the eruption of a coronal mass ejection, the setup with preexisting MFR (and embedded filament) leads to an MFR eruption with a larger mass content.
A High-mass, Young Star-forming Core Escaping from Its Parental Filament
Authors: Ren 任 Zhiyuan 致远 , Chen 陈 Xi 曦 , Liu 刘 Tie 铁 , Mannfors Emma , Bronfman Leonardo , Xu 许 Fengwei 峰玮 , Feng 冯 Siyi 思轶 , Liu 刘 Hongli 洪礼 , Meng 孟 Fanyi 繁一 , Stutz Amelia M. , Li 李 Shanghuo 尚活 , Lee Chang Won , Wang 王 Ke 科 , Zhou 周 Jianwen 建文 , Li 李 Di 菂 , Wang 王 Chen 晨 , Eswaraiah Chakali , Tej Anandmayee , Chen 陈 Long-Fei 龙飞 , Shi 石 Hui 惠
Published: September 2023

We studied the unique kinematic properties in massive filament G352.63-1.07 at 103 au spatial scale with the dense molecular tracers observed with the Atacama Large Millimeter/submillimeter Array. We find the central massive core M1 (12 M
⊙) being separated from the surrounding filament with a velocity difference of

v
−

v

¯

sys

=
−
2

km

s

−
1

and a transverse separation within 3″. Meanwhile, as shown in multiple dense-gas tracers, M1 has a spatial extension closely aligned with the main filament and is connected to the filament toward both its ends. M1 thus represents a very beginning state for a massive, young star-forming core escaping from the parental filament, within a timescale of ∼4000 yr. Based on its kinetic energy (3.5 × 1044 erg), the core escape is unlikely solely due to the original filament motion or magnetic field but requires more energetic events such as a rapid intense anisotropic collapse. The released energy also seems to noticeably increase the environmental turbulence. This may help the filament to become stabilized again.
AstroSat View of the Neutron Star Low-mass X-Ray Binary GX 340+0
Authors: Bhargava Yash , Bhattacharyya Sudip , Homan Jeroen , Pahari Mayukh
Published: September 2023

Understanding the spectral evolution along the “Z”-shaped track in the hardness–intensity diagram of Z sources, which are a class of luminous neutron star low-mass X-ray binaries, is crucial to probe accretion processes close to the neutron star. Here, we study the horizontal branch (HB) and the normal branch (NB) of the Z source GX 340+0 using AstroSat data. We find that the HB and the NB appear as two different types of X-ray intensity dips, which can appear in any sequence and with various depths. Our 0.8–25 keV spectra of dips and the hard apex can be modeled by the emissions from an accretion disk, a Comptonizing corona covering the inner disk, and the neutron star surface. We find that as the source moves onto the HB, the corona is replenished and energized by the disk and a reduced amount of disk matter reaches the neutron star surface. We also conclude that quasiperiodic oscillations during HB/NB are strongly associated with the corona and explain the evolution of strength and hard lag of this timing feature using the estimated coronal optical depth evolution.
Constraints on Strong Phase Transitions in Neutron Stars
Authors: Gorda T. , Hebeler K. , Kurkela A. , Schwenk A. , Vuorinen A.
Published: September 2023

We study current bounds on strong first-order phase transitions (PTs) along the equation of state (EOS) of dense strongly interacting matter in neutron stars, under the simplifying assumption that on either side of the PT, the EOS can be approximated by a simple polytropic form. We construct a large ensemble of possible EOSs of this form, anchor them to chiral effective field theory calculations at nuclear density and perturbative Quantum Chromodynamics at high densities, and subject them to astrophysical constraints from high-mass pulsars and gravitational-wave observations. Within this setup, we find that a PT permits neutron-star solutions with larger radii, but only if the transition begins below twice nuclear saturation density. We also identify a large parameter space of allowed PTs currently unexplored by numerical-relativity studies. Additionally, we locate a small region of parameter space allowing twin-star solutions, though we find them to only marginally pass the current astrophysical constraints. Finally, we find that sizeable cores of high-density matter beyond the PT may be located in the centers of some stable neutron stars, primarily those with larger masses.
Quasiperiodic Oscillation in Short Gamma-Ray Bursts from Black Hole–Neutron Star Mergers
Authors: Li 李 Yan 彦 , Shen 申 Rong-Feng 荣锋 , Zhang 张 Bin-Bin 彬彬
Published: September 2023

Short-duration gamma-ray bursts (sGRBs) are commonly attributed to the mergers of double neutron stars (NSs) or the mergers of a neutron star with a black hole (BH). While the former scenario was confirmed by the event GW170817, the latter remains elusive. Here, we consider the latter scenario in which an NS is tidally disrupted by a fast-spinning low-mass BH and the accretion onto the BH launches a relativistic jet and hence produces an sGRB. The merging binary’s orbit is likely misaligned with the BH’s spin. Hence, the Lense–Thirring precession around the BH may cause a hyperaccreting thick disk to precess in a solid-body manner. We propose that a jet, initially aligned with the BH spin, is deflected and collimated by the wind from the disk, therefore being forced to precess along with the disk. This would result in a quasiperiodic oscillation or modulation in the gamma-ray light curve of the sGRB, with a quasi-period of ∼0.01–0.1 s. The appearance of the modulation may be delayed respective to the triggering of the light curve. This feature, unique to the BH–NS merger, may have already revealed itself in a few observed sGRBs (such as GRB 130310A), and it carries the spin–orbit orientation information of the merging system. Identification of this feature would be a new approach to reveal spin–orbit misaligned merging BH–NS systems, which are likely missed by the current gravitational-wave searching strategy that is principally targeting aligned systems.
The Effects of Nonequilibrium Velocity Distributions on Alfvén Ion-cyclotron Waves in the Solar Wind
Authors: Walters Jada , Klein Kristopher G. , Lichko Emily , Stevens Michael L. , Verscharen Daniel , Chandran Benjamin D. G.
Published: September 2023

In this work, we investigate how the complex structure found in solar wind proton velocity distribution functions (VDFs), rather than the commonly assumed two-component bi-Maxwellian structure, affects the onset and evolution of parallel-propagating microinstabilities. We use the Arbitrary Linear Plasma Solver, a numerical dispersion solver, to find the real frequencies and growth/damping rates of the Alfvén modes calculated for proton VDFs extracted from Wind spacecraft observations of the solar wind. We compare this wave behavior to that obtained by applying the same procedure to core-and-beam bi-Maxwellian fits of the Wind proton VDFs. We find several significant differences in the plasma waves obtained for the extracted data and bi-Maxwellian fits, including a strong dependence of the growth/damping rate on the shape of the VDF. By applying the quasilinear diffusion operator to these VDFs, we pinpoint resonantly interacting regions in velocity space where differences in VDF structure significantly affect the wave growth and damping rates. This demonstration of the sensitive dependence of Alfvén mode behavior on VDF structure may explain why the Alfvén ion-cyclotron instability thresholds predicted by linear theory for bi-Maxwellian models of solar wind proton background VDFs do not entirely constrain spacecraft observations of solar wind proton VDFs, such as those made by the Wind spacecraft.
Secondary Proton Beam Instability in a Turbulent Solar Wind at 50 R
⊙
Authors: Markovskii S. A. , Vasquez Bernard J.
Published: September 2023

We investigate a secondary proton beam instability coexisting with the ambient solar wind turbulence at 50 R
☉. Three-dimensional hybrid numerical simulations (particle ions and a quasi-neutralizing electron fluid) are carried out with the plasma parameters in the observed range. In the turbulent background, the particle distribution function, in particular the slope of the “bump-on-tail” responsible for the instability, is time-dependent and inhomogeneous. The presence of the turbulence substantially reduces the growth rate and saturation level of the instability. We derive magnetic power spectra from the observational data and perform a statistical analysis to evaluate the average turbulence intensity at 50 R
☉. This information is used to link the observed frequency spectrum to the wavenumber spectrum in the simulations. We verify that Taylor’s frozen-in hypothesis is valid for this purpose to a sufficient extent. To reproduce the typical magnetic power spectrum of the instability observed concurrently with the background turbulence, an artificial spacecraft probe is run through the simulation box. The thermal-ion instabilities are often seen as power elevations in the kinetic range of scales above an extrapolation of the turbulence spectrum from larger scales. We show that the elevated power in the simulations is much higher than the background level. Therefore, the turbulence at the average intensity does not obscure the secondary proton beam instability, as opposed to the solar wind at 1 au, in which the ambient turbulence typically obscures thermal-ion instabilities.
Deciphering the Morphological Origins of X-shaped Radio Galaxies: Numerical Modeling of Backflow versus Jet Reorientation
Authors: Giri Gourab , Vaidya Bhargav , Fendt Christian
Published: September 2023

X-shaped radio galaxies (XRGs) develop when certain extragalactic jets deviate from their propagation path. An asymmetric ambient medium (backflow model) or complex active galactic nucleus activity (jet-reorientation model) enforcing the jet direction to deviate may cause these structures. In this context, the present investigation focuses on the modeling of XRGs by performing 3D relativistic magnetohydrodynamic simulations. We implement different jet-propagation models applying an initially identical jet-ambient medium configuration to understand distinctive features. This study, the first of its kind, demonstrates that all adopted models produce XRGs with notable properties, thereby challenging the notion of a universal model. Jet reorientation naturally explains several contentious properties of XRGs, including wing alignment along the ambient medium’s primary axis, development of collimated lobes, and the formation of noticeably longer wings than active lobes. These XRGs disrupt the cluster medium by generating isotropic shocks and channeling more energy than in the backflow scenario. Our synthetic thermal X-ray maps of the cluster medium reveal four clear elongated cavities associated with the wing-lobe alignment, regardless of projection effects, but they affect their age estimation. We show that the depth and geometric alignment of the evolved cavities may qualify as promising characteristics of XRGs, which may be used to disentangle different formation scenarios.
Tidally Excited Inertial Waves in Stars and Planets: Exploring the Frequency-dependent and Averaged Dissipation with Nonlinear Simulations
Authors: Astoul Aurélie , Barker Adrian J.
Published: September 2023

We simulate the nonlinear hydrodynamical evolution of tidally excited inertial waves in convective envelopes of rotating stars and giant planets modeled as spherical shells containing incompressible, viscous, and adiabatically stratified fluid. This model is relevant for studying tidal interactions between close-in planets and their stars, as well as close low-mass star binaries. We explore in detail the frequency-dependent tidal dissipation rates obtained from an extensive suite of numerical simulations, which we compare with linear theory, including with the widely employed frequency-averaged formalism to represent inertial wave dissipation. We demonstrate that the frequency-averaged predictions appear to be quite robust and are approximately reproduced in our nonlinear simulations spanning the frequency range of inertial waves as we vary the convective envelope thickness, tidal amplitude, and Ekman number. Yet, we find nonlinear simulations can produce significant differences with linear theory for a given tidal frequency (potentially by orders of magnitude), largely due to tidal generation of differential rotation and its effects on the waves. Since the dissipation in a given system can be very different both in linear and nonlinear simulations, the frequency-averaged formalism should be used with caution. Despite its robustness, it is also unclear how accurately it represents tidal evolution in real (frequency-dependent) systems.
Molecular Outgassing in Centaur 29P/Schwassmann–Wachmann 1 during Its Exceptional 2021 Outburst: Coordinated Multiwavelength Observations Using nFLASH at APEX and iSHELL at the NASA-IRTF
Authors: Roth Nathan X. , Milam Stefanie N. , DiSanti Michael A. , Villanueva Geronimo L. , Faggi Sara , Bonev Boncho P. , Cordiner Martin A. , Remijan Anthony J. , Bockelée-Morvan Dominique , Biver Nicolas , Crovisier Jacques , Lis Dariusz C. , Charnley Steven B. , Jehin Emmanuel , Wirström Eva S. , McKay Adam J.
Published: September 2023

The extraordinary 2021 September–October outburst of Centaur 29P/Schwassmann–Wachmann 1 afforded an opportunity to test the composition of primitive Kuiper disk material at high sensitivity. We conducted nearly simultaneous multiwavelength spectroscopic observations of 29P/Schwassmann–Wachmann 1 using iSHELL at the NASA Infrared Telescope Facility (IRTF) and nFLASH at the Atacama Pathfinder EXperiment (APEX) on 2021 October 6, with follow-up APEX/nFLASH observations on 2021 October 7 and 2022 April 3. This coordinated campaign between near-infrared and radio wavelengths enabled us to sample molecular emission from a wealth of coma molecules and to perform measurements that cannot be accomplished at either wavelength alone. We securely detected CO emission on all dates with both facilities, including velocity-resolved spectra of the CO (J = 2–1) transition with APEX/nFLASH and multiple CO (v = 1–0) rovibrational transitions with IRTF/iSHELL. We report rotational temperatures, coma kinematics, and production rates for CO and stringent (3σ) upper limits on abundance ratios relative to CO for CH4, C2H6, CH3OH, H2CO, CS, and OCS. Our upper limits for CS/CO and OCS/CO represent their first values in the literature for this Centaur. Upper limits for CH4, C2H6, CH3OH, and H2CO are the most stringent reported to date, and are most similar to values found in ultra CO-rich Oort cloud comet C/2016 R2 (PanSTARRS), which may have implications for how ices are preserved in cometary nuclei. We demonstrate the superb synergy of coordinated radio and near-infrared measurements, and advocate for future small-body studies that jointly leverage the capabilities of each wavelength.
Earth as a Transiting Exoplanet: A Validation of Transmission Spectroscopy and Atmospheric Retrieval Methodologies for Terrestrial Exoplanets
Authors: Lustig-Yaeger Jacob , Meadows Victoria S. , Crisp David , Line Michael R. , Robinson Tyler D.
Published: September 2023

The James Webb Space Telescope (JWST) will enable the search for and characterization of terrestrial exoplanet atmospheres in the habitable zone via transmission spectroscopy. However, relatively little work has been done to use solar system data, where ground truth is known, to validate spectroscopic retrieval codes intended for exoplanet studies, particularly in the limit of high resolution and high signal-to-noise ratio (S/N). In this work, we perform such a validation by analyzing a high-S/N empirical transmission spectrum of Earth using a new terrestrial exoplanet atmospheric retrieval model with heritage in solar system remote sensing and gaseous exoplanet retrievals. We fit the Earth’s 2–14 μm transmission spectrum in low resolution (R = 250 at 5 μm) and high resolution (R = 100,000 at 5 μm) under a variety of assumptions about the 1D vertical atmospheric structure. In the limit of noiseless transmission spectra, we find excellent agreement between model and data (deviations <10%) that enable the robust detection of H2O, CO2, O3, CH4, N2, N2O, NO2, HNO3, CFC-11, and CFC-12 thereby providing compelling support for the detection of habitability, biosignature, and technosignature gases in the atmosphere of the planet using an exoplanet-analog transmission spectrum. Our retrievals at high spectral resolution show a marked sensitivity to the thermal structure of the atmosphere, trace gas abundances, density-dependent effects, such as collision-induced absorption and refraction, and even hint at 3D spatial effects. However, we used synthetic observations of TRAPPIST-1e to verify that the use of simple 1D vertically homogeneous atmospheric models will likely suffice for JWST observations of terrestrial exoplanets transiting M dwarfs.
Reforming the school-based education system in England: A common framework, rule book and a new structure for schools
Authors: West Anne , Wolfe David
Published: September 2023

The school system in England has undergone significant change following the introduction of the academies policy and the subsequent mass conversion of secondary schools to academies. In this article we address two issues arising from this process of academisation, namely equality of
opportunity and local democratic accountability, both of which are fundamental to what one might argue comprehensive schooling should entail. We outline the policy changes that have taken place from 1965 and look in more detail at the changes since 2010. We then examine how equality of opportunity
and democratic accountability have been affected by the legislative changes. In our final section, we put forward proposals for how the shortcomings we identify might be addressed by policy-makers: these we argue relate back to the basic assumptions underpinning Circular 10/65.
Comprehensive education for mutual recognition: A sacred gift to the nation
Authors: Ranson Stewart
Published: September 2023

The post-war consensus has been dismantled in favour of a culture that rewards and empowers a small acquisitive elite at the expense of the great majority. This culture actively prevents the creation of a society of mutual recognition and respect. But without just such a society there
can be no true comprehensive education. Where it exists, progressive comprehensive education develops pedagogies of recognition in learning communities that mediate worlds of difference, and, in some areas, has fostered the introduction of tiered deliberative forums to enable at local level
democratic discussion of major decisions. This framework offers a model for informing and sustaining inclusive democratic participation of the kind required to establish the new cohesive national-political settlement we need.
Comment la technologie opère le passage de l’action individuelle à l’action collective ? Une perspective possessive
Authors: Bencherki Nicolas
Published: September 2023

Nous soutenons que la technologie permet à la possession et à la propriété d’opérer la capture et l’agrégation de l’action individuelle. Ainsi, à travers la sociologie de Gabriel Tarde, nous proposons une théorisation de la propriété et de la possession plus riche que la définition légale qui prévaut dans les études organisationnelles en général, et en communication organisationnelle en particulier. En revisitant des études récentes sur les technologies numériques, cette nouvelle perspective révèle comment elles permettent l’appropriation de l’action par l’organisation. En guise de conclusion, nous nous interrogerons sur la distribution plus ou moins équitable de l’agentivité à la lumière des implications politiques de la technologie.
Trente ans après les accords d’Oslo : une perspective israélienne
Authors: Rabinovich Itamar , Cadenza Academic translations
Published: September 2023

Les accords d’Oslo, signés en 1993, ont suscité de grands espoirs de paix au Proche-Orient. Trente ans plus tard, le bilan est amer. Le refus de certains compromis, la persistance du terrorisme et la poursuite de la colonisation ont conduit ce processus à une impasse. Les tenants de l’annexion de la Cisjordanie font partie du gouvernement israélien depuis la fin 2022, tandis que l’Autorité palestinienne est sclérosée. La situation paraît bloquée et lourde d’incertitudes.
Sahel : comment négocier avec les djihadistes ?
Authors: Pérouse de Montclos Marc-Antoine
Published: September 2023

Au Sahel, les armées nationales et étrangères ne sont pas parvenues à éradiquer, ni même à endiguer, le terrorisme. Négocier avec les djihadistes paraît dès lors inévitable. Des négociations ont déjà eu lieu depuis plusieurs années, parfois favorisées par des médiateurs internationaux, et elles ont pu donner des résultats localement, sur des sujets précis. Des dérives ont aussi été observées. Négocier plus globalement la paix est un chemin semé d’embûches, voire une chimère.
Définition d’un outil de mesure de la performance globale
Authors: Bidi Georges , Feige Jimmy
Published: September 2023

À l’heure d’une préoccupation plus importante de la préservation des populations et de la planète, les entreprises mènent un changement organisationnel responsable en développant des transformations visant à être davantage responsables de leurs activités. Le changement organisationnel responsable implique une démarche RSE structurée et pilotée par des outils pour mesurer les progrès en termes de performance globale. La mesure socialement responsable est une problématique non résolue. À partir d’une revue de littérature préalable dressée sur le thème du changement organisationnel responsable et de son pilotage, nous proposons un outil de mesure de la performance globale.
L’influence du sentiment d’insécurité dans le comportement et la prise de décision : étude de cas
Authors: Dugoin-Clément Christine , Henot Sarah
Published: September 2023

Le sentiment d’insécurité (SI) est un concept fréquemment utilisé alors même qu’il reste flou. Appliqué aux populations civiles, son impact sur un groupe socioprofessionnel, pourtant susceptible d’y être confronté régulièrement, est plus rarement évoqué ou étudié. En s’appuyant sur 12 entretiens qualitatifs menés auprès de membres de force de sécurité intérieure (FSI), et après avoir interrogé la nature du sentiment d’insécurité à partir des recherches de Roché (2010), cette étude s’attache à en observer l’impact sur le comportement et la prise de décision de ces personnels. En outre, elle analyse les biais qui peuvent influencer ces populations très exposées au SI. Elle permet un état comparatif entre forces civiles et militaires concernant la perception du SI, son lien avec les biais cognitifs spécifiques à cette population et son impact sur les comportements et les prises de décision.
L’apprentissage du management en entreprise avec un MOOC : l’importance du profil managérial dans la définition des attentes
Authors: Cascioli Fiammetta , Dejoux Cécile
Published: September 2023

Cette étude mobilise une posture socio-constructiviste qui met en évidence les différentes interactions entre le MOOC et l’apprenant. Dans ce contexte, l’apprenant est considéré comme un organisme qui crée sa propre signification à travers les échanges qu’il a avec son environnement. Les travaux de recherche de Cascioli (2020) ont montré que les apprenants utilisent leurs formes de représentations pour agir de manière symbolique sur le monde conceptuel, en générant ainsi de nouvelles. Le parcours MOOC est donc considéré comme un outil numérique qui permet d’optimiser et d’élargir le processus d’apprentissage en termes de traitement, analyse et problématisation de l’information ainsi que de création de nouvelles représentations (Cox, 2013). Deux questions sont posées dans cette publication : Quelles sont les attentes d’apprentissage des apprenants qui suivent un MOOC ? Peut-on les catégoriser en fonction du profil managérial de l’apprenant ? Un traitement statistique sur 3 760 observations en relation avec le MOOC managérial le plus suivi de France, le MOOCLead de Cécile Dejoux au CNAM, permet par un cluster two steps d’identifier trois catégories d’apprenants : les « les novices », managers débutants, « les éveillés », managers intermédiaires, et « les avertis », managers confirmés. Chacune de ces catégorie fait état d’attentes distinctes, allant d’un apprentissage général des compétences numériques du manager de demain, à un approfondissement, voir, à une mise en perspective.
More intuition, less rationality… Towards an alternative decision-making process for SME managers
Authors: Kammoun Mohja , Boutiba Rim , Boussoura Ezzeddine
Published: September 2023

Le processus de prise de décision est une thématique qui ne cesse de susciter l’intérêt des chercheurs. Cependant, les modèles proposés, se fondant sur le postulat de la rationalité, ont montré leur limite à appréhender l’équivocité des situations décisionnelles des dirigeants. Une littérature foisonnante a été consacrée à ce sujet et a donné naissance à une diversité de représentations. Néanmoins, ces acceptions se révèlent être hétéroclites, fragmentées, voire même dissociées du contexte décisionnel. Ce travail de recherche s’inscrit dans la continuité des travaux qui se sont interrogés sur les représentations multiples de la notion d’intuition et la manière de la conceptualiser. Son objet consiste à développer un cadre d’analyse multi-niveaux pouvant incarner les différentes facettes de l’utilisation de l’intuition dans la prise de décision des dirigeants de PME. Pour ce faire, nous avons conduit une étude qualitative exploratoire auprès de 12 dirigeants de PME. Nos résultats supportent la multidimensionnalité de la notion d’intuition, dimensions qui se conjuguent mutuellement en vue de mieux comprendre comment se fabrique la décision au sein des PME.
Going Virtual: Transitioning an Older Adult Community Health Clinical Course to Online During COVID-19
Authors: Perry Julie , Panepinto Robingale , Powers S. Cole , Flynn Heather
Published: September 2023

Background:

Nursing students in a community health course implemented a quality improvement project with active older adults (AOA). This article describes a process for transitioning an in-person community health quality improvement (QI) project to online.

Method:

To communicate with AOA, students created a blog, “Healthy Living From Home,” that enabled communication among the AOA, partner organizations staff, and students. A quick response code was created that linked to the 6-week program. At the end of the 6 weeks, participants were asked to complete a survey.

Results:

Data collected from the QI project website tracked more than 1,000 visits to the blog. Participants rated project enjoyment, helpfulness, and educational content as 4.5 on a 5-point Likert scale.

Conclusion:

Using a multifocal online format to engage with AOA was successful and can continue to be used in the future.

[
J Nurs Educ
. 2024;63(5):332–334.]
The right place. Finding locations for the co-creation of temporary affordable housing through the Solidary Mobile Housing Pilot Project
Authors: De Smet Aurelie , Pak Burak , Schoonjans Yves , Bruyneel Geraldine
Published: September 2023

Ces dernières années, nombre de villes ont commencé à expérimenter l’usage temporaire d’« espaces en attente » comme moyen d’améliorer la ville. Diverses initiatives ponctuelles ont vu le jour. Certaines organisations de la société civile y voient une occasion de faire face à la nécessité urgente de disposer de logements à prix modéré plus nombreux et de meilleure qualité. Mais comment cela se passe-t-il en pratique ? Le présent article décrit et évalue le processus de recherche de lieux mis au point pour le projet pilote Solidary Mobile Housing ; celui-ci s’inscrit dans le cadre d’un projet de recherche-action participative en cours visant à cocréer avec les sans-abri des logements temporaires qui leur soient destinés dans les espaces urbains en attente. À partir de cette expérience et d’échanges de connaissances avec des spécialistes de premier plan et des acteurs de terrain, il s’agit d’examiner les possibilités et les limites de l’utilisation d’espaces inoccupés ou sous-exploités pour apporter une réponse immédiate (bien que partielle et à court terme) à la crise actuelle en matière de logements abordables en assurant la mise à disposition de logements temporaires, pour les personnes vulnérables et avec leur concours, dans la Région de Bruxelles-Capitale.
When the diagnosis is written in the DNA: a case of erythropoietic protoporphyria in a patient with a chromosome 18 deletion
Authors: Rovaris Sara , La Rosa Giuseppe , Mezzana Sara , Tonon Francesco , Mori Luigi , Monti Eugenio , Mazzeo Giuseppe , Calzavara-Pinton Piergiacomo , Arisi Mariachiara
Published: September 2023

We present a case of erythropoietic protoporphyria (EPP) in a 21-year-old man who sought medical attention in April 2022 due to diffuse edema and erythema of the hands, which he had been experiencing since childhood and occurring shortly after sun exposure. The patient's medical history revealed a partial deletion of the long arm of chromosome 18. Based on the patient's medical background and clinical symptoms, we conducted various tests, including measuring total erythrocyte protoporphyrin levels and evaluating the fluorometric emission peak of plasma porphyrins using a spectrofluorometer. Additionally, a genetic analysis revealed a complete deletion of the FECH gene on one allele and the presence of an intronic variant on the other allele, identified as c.315–48T>C (IVS3–48T>C) and classified as a susceptibility polymorphism. In June 2022, the patient underwent an Afamelanotide implant, which resulted in an improvement in his clinical condition.
Estimation of positional accuracy in all on four implants using various splinting materials: An in vitro study
Authors: Thakur Jhalak , Parlani Swapnil
Published: September 2023

Statement of Problem:

Osseointegrated implants have offered an alternative treatment solution to conventional prostheses for patients who lost their teeth and have attained expectable long-term results. A precise and inertly fitting prostheses as well as surgical procedure which are error-free are mandatory for the long-term success of implants.

Aim:

The purpose of this in vitro study was to evaluate the effect of dimensional stability of conventionally used and advanced splinting materials on the accuracy of master casts.

Materials and Methods:

An acrylic resin master model was fabricated into which four implant analogs were placed. The impression copings attached were splinted with dental floss onto which splinting material was added, bis-GMA (Group A), flowable composite (Group B), and pattern resin (Group C). Impressions were made in polyvinyl siloxane and laboratory analogs were attached. The five casts from each group were retrieved and were analyzed for the positional accuracy of implants.

Statistical Analysis:

One-way analysis of variance and post
hoc test were done to analyze the significant difference between the four implant analogs of each group ARDS with the master model. The confidence interval was also calculated to assess the accuracy.

Results:

It was observed that all materials are equally accurate for the reproduction of implant positional accuracy. Bis-GMA has shown the readings close to the master model depicting the more positional accuracy. There was no significant difference for flowable composite and pattern resin between the centroids of implant analogues of master model and the mean of inter-implant distance 1 and 2, 1 and 4, 3 and 4, and 2 and 4 in each group in X, Y, and Z axes.

Conclusions:

The results showed that bis-GMA can be the material of choice for splinting impression copings, other material used flowable composite, and pattern resin can be recommended as splinting material of choice for multiple implant cases, as these exhibited similar results such as other groups which are used conventionally.
Evaluation of perception by osseointegrated dental implants supporting a fixed prosthesis: A clinical study
Authors: Bakshi Purva Vijay , Kulkarni Sudhindra S. , Kulkarni Mihir Raghavendra
Published: September 2023

Purpose:

The extraction of teeth results in loss of periodontal receptors which are essential for oral-sensory functions. Osseointegrated implants have also shown to perceive signals, and this phenomenon is termed as osseoperception. The aim of this study was to determine the active tactile perception of osseointegrated dental implants supporting a fixed prosthesis in comparison to natural teeth.

Materials and Methods:

A total of 20 participants were included in this split-mouth cross-sectional study. The participants were divided into two groups (n = 10) as follows – Group I: participants with a restored osseointegrated dental implant in occlusion with a healthy natural tooth and Group II: participants with restored osseointegrated dental implants in occlusion. The implant-supported fixed prostheses were considered test sites whereas the natural teeth were considered control sites. Articulating papers were placed interocclusally in a predetermined random order of 50 insertions at test and control sites, respectively. The participants’ ability to perceive the presence/absence of the test papers was recorded for every insertion.

Results:

The minimum thickness perceived at test site was 2X that of control site in Group I whereas it was 4X the control site in Group II and the difference was statistically significant (P < 0.05).

Conclusion:

The results of the present study suggest that the active tactile perception of implants opposing natural teeth was nearing the natural teeth values whereas the active tactile perception of implants in opposing arches was significantly lesser.