bluuebunny/crossref_metadata_2025 huggingface dataset:
การพัฒนาแบบจำลองของโรงไฟฟ้าพลังน้ำเขื่อนแม่สะงาเพื่อประยุกต์ใช้การควบคุมเชิงทำนายแบบจำลองไม่เชิงเส้นกับระบบจัดการพลังงานในเมืองแม่ฮ่องสอน
Authors: บรรเจิดพงศ์ชัย เดวิด , ปราบนคร กมลชนก , เรืองสมุทร ธนวัฒน์
Published: July 2023

บทความนี้มีวัตถุประสงค์เพื่อปรับปรุงแบบจำลองของโรงไฟฟ้าพลังน้ำ สำหรับการควบคุมของระบบจัดการพลังงานร่วมกับการวิเคราะห์การไหลกำลังไฟฟ้าแบบเหมาะที่สุด รวมถึงประยุกต์ใช้การควบคุมเชิงทำนายแบบจำลองไม่เชิงเส้นกับระบบจัดการพลังงานของเมืองแม่ฮ่องสอน การปรับปรุงแบบจำลองของโรงไฟฟ้าพลังน้ำอาศัยการทำนายระดับน้ำในเขื่อนแม่สะงาโดยใช้แบบจำลองอนุกรมเวลาและแบบจำลองหน่วยความจำระยะสั้นยาว เราเปรียบเทียบแบบจำลองด้วยชุดข้อมูลระดับน้ำในเขื่อนแม่สะงาเพื่อทำนายระดับน้ำล่วงหน้า 1 วัน และ 30 วัน เพื่อปรับปรุงแบบจำลองให้ถูกต้องและเหมาะสมกับชุดข้อมูลระดับน้ำ เมื่อประยุกต์ใช้แบบจำลองของโรงไฟฟ้าพลังงานน้ำที่ปรับปรุงกับระบบจัดการพลังงานในเมืองแม่ฮ่องสอน พบว่า การผลิตไฟฟ้าด้วยโรงไฟฟ้าพลังน้ำในฤดูฝนและฤดูหนาวมีกำลังมากขึ้น ส่งผลให้ลดค่าใช้จ่ายดำเนินการรวมและลดการปล่อยแก๊สคาร์บอนไดออกไซด์รวม อีกทั้งไม่ต้องพึ่งพาการผลิตไฟฟ้าโดยเครื่องกำเนิดไฟฟ้าดีเซล อย่างไรก็ตาม ในฤดูร้อน พบว่า การผลิตไฟฟ้าด้วนพลังน้ำมีกำลังลดลง ทำให้ค่าใช้จ่ายดำเนินการรวมและการปล่อยแก๊สคาร์บอนไดออกไซด์รวมเพิ่มขึ้นเนื่องจากการพึ่งพาแหล่งผลิตไฟฟ้าดีเซลรวมถึงการนำเข้าไฟฟ้าจากโครงข่ายไฟฟ้ากำลัง
ระบบปัญญาประดิษฐ์สำหรับการทำนายสุขภาพทางจิตของผู้ที่ทำงานด้านเทคโนโลยีสารสนเทศ
Authors: ธีรอำพน นิพนธ์ , แย้มงาม ภาสกร , เอื้อพันธ์วิริยะกุล ศันสนีย์
Published: July 2023

งานวิจัยทางวิชาการจำนวนมากในปัจจุบันชี้ให้เห็นว่า ระบบปัญญาประดิษฐ์ (Artificial Intelligence) เป็นเทคโนโลยีที่สามารถนำไปประยุกต์ใช้ได้อย่างกว้างขวาง ทั้งในแวดวงวิศกรรมศาสตร์ สังคมศาสตร์ การบริหาร และการแพทย์ งานวิจัยนี้เป็นการประยุกต์ใช้ระบบปัญญาประดิษฐ์ในการทำนายสุขภาพจิตของผู้ทำงานด้านเทคโนโลยีสารสนเทศ จุดประสงค์เพื่อศึกษาประสิทธิภาพในการทำนายสุขภาพจิตของระบบปัญญาประดิษฐ์ โดยอาศัยเทคนิคการถดถอยเชิงเส้น (Linear Regression) รูปแบบต่างๆ 4 รูปแบบ ได้แก่ Random Forest, XGBoost, Logistic Regression และเทคนิคโครงข่ายประสาทเทียม (Artificial Neural Network) ในการวิเคราะห์ข้อมูลกลุ่มตัวอย่างที่เป็นข้อมูลชุดฝึกจำนวน 1,146 ตัวอย่าง และข้อมูลชุดทดสอบจำนวน 287 ตัวอย่าง โดยผลการวิจัยแสดงให้เห็นว่า อัลกอริทึมของปัญญาประดิษฐ์แบบ Random Forest มีประสิทธิภาพสูงสุดในการทำนายความเสี่ยงของการเกิดปัญหาด้านสุขภาพทางจิต ด้วยร้อยละความแม่นยำเท่ากับ 90.85 และร้อยละความถูกต้องเท่ากับ 92.33 หรือคิดเป็นค่าร้อยละความไวเท่ากับ 94.56 และค่าร้อยละความจำเพาะเท่ากับ 90.00
ANALYSIS OF ATTRACTANT COMPOUND FROM PHYTOTELMATA AS BREADING SITE Aedes albopictus
Authors: Fita wahidah
Published: July 2023

Dengue Hemorrhagic Fever (DHF) has still one of the problem diseases in Indonesia. There has increased in dengue cases in several parts of Indonesia since January 2020 and in the midst of the COVID-19. Very little information about natural breeding sites of Aedes especially of the phytotelmata such as Bambusa sp., Neoregelia spectabilis, Musa paradisiaca, and Cocos nucifera. Other than physical factors of plants, it is suspected that there are attractive compounds produced by these plants. The purpose of this study was to determine the chemical compounds that are attractants from plants used as breeding sites for Ae. albopictus. The research method was started by observation of the presence of Neoregelia spectabilis, Musa paradisiaca, Bambusa sp., and Cocos nucifera plants which contained Ae. albopictus on one of the plant body parts found. Then macerated, purified and analyzed for chemical content using GCMS. The results showed that there were differences in the chemical compounds of plants. The dominant chemical compound is tetracosane. Tetracosane is a chemical compound from the Alkane group. The alkana is an important role in plant interactions such as attractants in the oviposition of certain insects or as attractants for insect feeding activities.
Overfitting Affects the Reliability of Radial Velocity Mass Estimates of the V1298 Tau Planets
Authors: Blunt Sarah , Carvalho Adolfo , David Trevor J. , Beichman Charles , Zink Jon K. , Gaidos Eric , Behmard Aida , Bouma Luke G. , Cody Devin , Dai Fei , Foreman-Mackey Daniel , Grunblatt Sam , Howard Andrew W. , Kosiarek Molly , Knutson Heather A. , Rubenzahl Ryan A. , Beard Corey , Chontos Ashley , Giacalone Steven , Hirano Teruyuki , Johnson Marshall C. , Lubin Jack , Akana Murphy Joseph M. , Petigura Erik A , Van Zandt Judah , Weiss Lauren
Published: July 2023

Mass, radius, and age measurements of young (≲100 Myr) planets have the power to shape our understanding of planet formation. However, young stars tend to be extremely variable in both photometry and radial velocity (RV) measurements, which makes constraining these properties challenging. The V1298 Tau system of four ∼0.5 R
J planets transiting a pre-main-sequence star presents an important, if stress-inducing, opportunity to observe and measure directly the properties of infant planets. Suárez Mascareño et al. published radial-velocity-derived masses for two of the V1298 Tau planets using a state-of-the-art Gaussian process regression framework. The planetary densities computed from these masses were surprisingly high, implying extremely rapid contraction after formation in tension with most existing planet-formation theories. In an effort to constrain further the masses of the V1298 Tau planets, we obtained 36 RVs using Keck/HIRES, and analyzed them in concert with published RVs and photometry. Through performing a suite of cross-validation tests, we found evidence that the preferred model of Suárez Mascareño et al. suffers from overfitting, defined as the inability to predict unseen data, rendering the masses unreliable. We detail several potential causes of this overfitting, many of which may be important for other RV analyses of other active stars, and recommend that additional time and resources be allocated to understanding and mitigating activity in active young stars such as V1298 Tau.
Accurate and Efficient Photoeccentric Transit Modeling
Authors: MacDougall Mason G. , Gilbert Gregory J. , Petigura Erik A.
Published: July 2023

A planet’s orbital eccentricity is fundamental to understanding the present dynamical state of a system and is a relic of its formation history. There is high scientific value in measuring the eccentricities of Kepler and Transiting Exoplanet Survey Satellite (TESS) planets given the sheer size of these samples and the diversity of their planetary systems. However, Kepler and TESS light curves typically only permit robust determinations of the planet-to-star radius ratio r, orbital period P, and transit midpoint t
0. Three other orbital properties, including the impact parameter b, eccentricity e, and argument of periastron ω, are more challenging to measure because they are all encoded in the light curve through subtle effects on a single observable—the transit duration T
14. In Gilbert et al., we showed that a five-parameter transit description {P, t
0, r, b, T
14} naturally yields unbiased measurements of r and b. Here, we build upon our previous work and introduce an accurate and efficient prescription to measure e and ω. We validate this approach through a suite of injection-and-recovery experiments. Our method agrees with previous approaches that use a seven-parameter transit description {P, t
0, r, b, ρ
⋆, e, ω}, which explicitly fits the eccentricity vector and mean stellar density. The five-parameter method is simpler than the seven-parameter method and is “future-proof” in that posterior samples can be quickly reweighted (via importance sampling) to accommodate updated priors and updated stellar properties. This method thus circumvents the need for an expensive reanalysis of the raw photometry, offering a streamlined path toward large-scale population analyses of the eccentricity from transit surveys.
Analytic Post-Newtonian Astrometric and Spectroscopic Models of Orbits around Black Holes
Authors: Hyman Sóley Ó. , Psaltis Dimitrios , Özel Feryal
Published: July 2023

Observations of the S stars, the cluster of young stars in the inner 0.1 pc of the Galactic center, have been crucial in providing conclusive evidence for a supermassive black hole at the center of our galaxy. Since some of the stars have orbits less than that of a typical human lifetime, it is possible to observe multiple orbits and test the weak-field regime of general relativity. Current calculations of orbits require relatively slow and expensive computations in order to perform numerical integrations for the position and momentum of each star at each observing time. In this paper, we present a computationally efficient, first-order post-Newtonian model for the astrometric and spectroscopic data gathered for the S stars. We find that future, 30 m class telescopes—and potentially even current large telescopes with very high spectroscopic resolution—may be able to detect the Shapiro effect for an S star in the next decade or so.
RadioAstron Space VLBI Imaging of the Jet in M87. I. Detection of High Brightness Temperature at 22 GHz
Authors: Kim Jae-Young , Savolainen Tuomas , Voitsik Petr , Kravchenko Evgeniya V. , Lisakov Mikhail M. , Kovalev Yuri Y. , Müller Hendrik , Lobanov Andrei P. , Sokolovsky Kirill V. , Bruni Gabriele , Edwards Philip G. , Reynolds Cormac , Bach Uwe , Gurvits Leonid I. , Krichbaum Thomas P. , Hada Kazuhiro , Giroletti Marcello , Orienti Monica , Anderson James M. , Lee Sang-Sung , Sohn Bong Won , Zensus J. Anton
Published: July 2023

We present results from the first 22 GHz space very long baseline interferometric (VLBI) imaging observations of M87 by RadioAstron. As a part of the Nearby AGN Key Science Program, the source was observed in 2014 February at 22 GHz with 21 ground stations, reaching projected (u, v) spacings up to ∼11 Gλ. The imaging experiment was complemented by snapshot RadioAstron data of M87 obtained during 2013–2016 from the AGN Survey Key Science Program. Their longest baselines extend up to ∼25 Gλ. For all of these measurements, fringes are detected only up to ∼2.8 Earth diameter or ∼3 Gλ baseline lengths, resulting in a new image with angular resolution of ∼150 μas or ∼20 Schwarzschild radii spatial resolution. The new image not only shows edge-brightened jet and counterjet structures down to submilliarcsecond scales but also clearly resolves the VLBI core region. While the overall size of the core is comparable to those reported in the literature, the ground-space fringe detection and slightly superresolved RadioAstron image suggest the presence of substructures in the nucleus, whose minimum brightness temperature exceeds

T

B
,
min

∼

10

12

K. It is challenging to explain the origin of this record-high

T

B
,
min

value for M87 by pure Doppler boosting effect with a simple conical jet geometry and known jet speed. Therefore, this can be evidence for more extreme Doppler boosting due to a blazar-like small jet viewing angle or highly efficient particle acceleration processes occurring already at the base of the outflow.
Buckyball-metal Complexes as Potential Carriers of Astronomical Unidentified Infrared Emission Bands
Authors: Hou Gao-Lei , Lushchikova Olga V. , Bakker Joost M. , Lievens Peter , Decin Leen , Janssens Ewald
Published: July 2023

Efforts over 40 yr still leave the source of astronomical infrared emission bands largely unidentified. Here, we report the first laboratory infrared (6–25 μm) spectra of gas-phase fullerene-metal complexes, [C60-Metal]+ (Metal = Fe, V) and show with density functional theory calculations that complexes of C60 with cosmically abundant metals, including Li, Na, K, Mg, Ca, Al, V, and Fe, all have similar spectral patterns. Comparison with observational infrared spectra from several fullerene-rich planetary nebulae demonstrates a strong positive linear cross-correlation. The infrared features of [C60-Metal]+ coincide with four bands attributed earlier to neutral C60 bands and in addition also with several bands unexplained to date. Abundance and collision theory estimates indicate that [C60-Metal]+ could plausibly form and survive in astrophysical environments. Hence, [C60-Metal]+ are proposed as promising carriers, in supplement to C60, of observational bands, potentially representing the largest molecular species in space other than C60, C60
+, and C70.
X-Ray Activity Variations and Coronal Abundances of the Star–Planet Interaction Candidate HD 179949
Authors: Acharya Anshuman , Kashyap Vinay L. , Saar Steven H. , Singh Kulinder Pal , Cuntz Manfred
Published: July 2023

We carry out detailed spectral and timing analyses of the Chandra X-ray data of HD 179949, a prototypical example of a star with a close-in giant planet with possible star–planet interaction (SPI) effects. We find a low coronal abundance A(Fe)/AH) ≈ 0.2 relative to the solar photospheric baseline of Anders & Grevesse, and significantly lower than the stellar photosphere as well. We further find low abundances of high first ionization potential (FIP) elements A(O)/A(Fe) ≲ 1, A(Ne)/A(Fe) ≲ 0.1, but with indications of higher abundances of A(N)/A(Fe) ≫ 1, A(Al)/A(Fe) ≲ 10. We estimate a FIP bias for this star in the range ≈ − 0.3 to −0.1, larger than the ≲ −0.5 expected for stars of this type, but similar to stars hosting close-in hot Jupiters. We detect significant intensity variability over timescales ranging from 100 s to 10 ks, and also evidence for spectral variability over timescales of 1–10 ks. We combine the Chandra flux measurements with Swift and XMM-Newton measurements to detect periodicities, and determine that the dominant signal is tied to the stellar polar rotational period, consistent with expectations that the corona is rotational-pole dominated. We also find evidence for periodicity at both the planetary orbital frequency and at its beat frequency with the stellar polar rotational period, suggesting the presence of a magnetic connection between the planet and the stellar pole. If these periodicities represent an SPI signal, it is likely driven by a quasi-continuous form of heating (e.g., magnetic field stretching) rather than sporadic, hot, impulsive flare-like reconnections.
pygwb: A Python-based Library for Gravitational-wave Background Searches
Authors: Renzini Arianna I. , Romero-Rodríguez Alba , Talbot Colm , Lalleman Max , Kandhasamy Shivaraj , Turbang Kevin , Biscoveanu Sylvia , Martinovic Katarina , Meyers Patrick , Tsukada Leo , Janssens Kamiel , Davis Derek , Matas Andrew , Charlton Philip , Liu Guo-Chin , Dvorkin Irina , Banagiri Sharan , Bose Sukanta , Callister Thomas , De Lillo Federico , D’Onofrio Luca , Garufi Fabio , Harry Gregg , Lawrence Jessica , Mandic Vuk , Macquet Adrian , Michaloliakos Ioannis , Mitra Sanjit , Pham Kiet , Poggiani Rosa , Regimbau Tania , Romano Joseph D. , van Remortel Nick , Zhong Haowen
Published: July 2023

The collection of gravitational waves (GWs) that are either too weak or too numerous to be individually resolved is commonly referred to as the gravitational-wave background (GWB). A confident detection and model-driven characterization of such a signal will provide invaluable information about the evolution of the universe and the population of GW sources within it. We present a new, user-friendly, Python-based package for GW data analysis to search for an isotropic GWB in ground-based interferometer data. We employ cross-correlation spectra of GW detector pairs to construct an optimal estimator of the Gaussian and isotropic GWB, and Bayesian parameter estimation to constrain GWB models. The modularity and clarity of the code allow for both a shallow learning curve and flexibility in adjusting the analysis to one’s own needs. We describe the individual modules that make up pygwb, following the traditional steps of stochastic analyses carried out within the LIGO, Virgo, and KAGRA Collaboration. We then describe the built-in pipeline that combines the different modules and validate it with both mock data and real GW data from the O3 Advanced LIGO and Virgo observing run. We successfully recover all mock data injections and reproduce published results.
The Large Deficit of HMXB Emission from Luminous Infrared Galaxies: The Case of the Circumnuclear Starburst Ring in NGC 7552
Authors: West Lacey , Garofali Kristen , Lehmer Bret D. , Prestwich Andrea , Eufrasio Rafael , Luangtip Wasutep , Roberts Timothy P. , Zezas Andreas
Published: July 2023

Luminous infrared galaxies (LIRGs), the most extreme star-forming galaxies in the nearby (D < 30 Mpc) universe, show a notable X-ray emission deficiency (up to a factor of ∼10) compared with predictions from scaling relations of galaxy-wide high-mass X-ray binary (HMXB) luminosity with star formation rate. In the nearby (≈20 Mpc) LIRG NGC 7552, the majority of the IR emission originates in a circumnuclear starburst ring, which has been resolved into several discrete knots of star formation. We present results from recent Chandra observations of NGC 7552, which reveal significant deficits in the 2–7 keV X-ray luminosities from two of the most powerful star-forming knots. We hypothesize that the expected luminous HMXB populations in these knots are either (1) obscured by very large column densities or (2) suppressed due to the knots having relatively high metallicity and/or very young ages (≲5 Myr). We distinguish between these possibilities using data from recent NuSTAR observations, whose sensitivity above 10 keV is capable of uncovering heavily obscured HMXB populations, since emission at these energies is more immune to absorption effects. We find no evidence of a heavily obscured HMXB population in the central region of NGC 7552, suggesting suppressed HMXB formation. We further show that metallicity-dependent scaling relations cannot fully account for the observed deficit from the most powerful star-forming knots or the central region as a whole. Thus, we suggest that recent bursts in local star formation activity likely drive the high L
IR within these regions on timescales ≲5 Myr, shorter than the timescale required for the formation of HMXBs.
Effects of Partial Ionization on Magnetic Flux Emergence in the Sun
Authors: Chouliaras Georgios , Syntelis P. , Archontis V.
Published: July 2023

We have performed 3D numerical simulations to investigate the effect of partial ionization on the process of magnetic flux emergence. In our study, we have modified the single-fluid MHD equations to include the presence of neutrals and have performed two basic experiments: one that assumes a fully ionized plasma (FI case) and one that assumes a partially ionized plasma (PI case). We find that the PI case brings less dense plasma to and above the solar surface. Furthermore, we find that partial ionization alters the emerging magnetic field structure, leading to a different shape of the polarities in the emerged bipolar regions compared to the FI case. The amount of emerging flux into the solar atmosphere is larger in the PI case, which has the same initial plasma beta as the FI case, but a larger initial magnetic field strength. The expansion of the field above the photosphere occurs relatively earlier in the PI case, and we confirm that the inclusion of partial ionization reduces cooling due to adiabatic expansion. However, it does not appear to work as a heating mechanism for the atmospheric plasma. The performance of these experiments in three dimensions shows that PI does not prevent the formation of unstable magnetic structures, which erupt into the outer solar atmosphere.
The GLASS-JWST Early Release Science Program. II. Stage I Release of NIRCam Imaging and Catalogs in the Abell 2744 Region
Authors: Paris Diego , Merlin Emiliano , Fontana Adriano , Bonchi Andrea , Brammer Gabriel , Correnti Matteo , Treu Tommaso , Boyett Kristan , Calabrò Antonello , Castellano Marco , Chen Wenlei , Yang Lilan , Glazebrook Karl , Kelly Patrick , Koekemoer Anton M. , Leethochawalit Nicha , Mascia Sara , Mason Charlotte , Morishita Takahiro , Nonino Mario , Pentericci Laura , Polenta Gianluca , Roberts-Borsani Guido , Santini Paola , Trenti Michele , Vanzella Eros , Vulcani Benedetta , Windhorst Rogier A. , Nanayakkara Themiya , Wang Xin
Published: July 2023

We present images and a multiwavelength photometric catalog based on all of the JWST NIRCam observations obtained to date in the region of the Abell 2744 galaxy cluster. These data come from three different programs, namely, the GLASS-JWST Early Release Science Program, UNCOVER, and the Director’s Discretionary Time program 2756. The observed area in the NIRCam wide-band filters—covering the central and extended regions of the cluster, as well as new parallel fields—is 46.5 arcmin2 in total. All images in eight bands (F090W, F115W, F150W, F200W, F277W, F356W, F410M, and F444W) have been reduced adopting the latest calibration and reference files available. Data reduction has been performed using an augmented version of the official JWST pipeline, with improvements aimed at removing or mitigating defects in the raw images and improving the background subtraction and photometric accuracy. We obtain an F444W-detected multiband catalog, including all NIRCam and available Hubble Space Telescope data, adopting forced-aperture photometry on point-spread-function-matched images. The catalog is intended to enable early scientific investigations and is optimized for the study of faint galaxies; it contains 24,389 sources, with a 5σ limiting magnitude in the F444W band ranging from 28.5 AB to 30.5 AB, as a result of the varying exposure times of the surveys that observed the field. We publicly release the reduced NIRCam images, associated multiwavelength catalog, and the code adopted for 1/f noise removal with the aim of aiding users in familiarizing themselves with JWST NIRCam data and identifying suitable targets for follow-up observations.
Investigating the IBEX Ribbon Structure a Solar Cycle Apart
Authors: Dayeh M. A. , Zirnstein E. J. , Swaczyna P. , McComas D. J.
Published: July 2023

A “Ribbon” of enhanced energetic neutral atom (ENA) emissions was discovered by the Interstellar Boundary Explorer in 2009, redefining our understanding of the heliosphere boundaries and the physical processes occurring at the interstellar interface. The Ribbon signal is intertwined with that of a globally distributed flux (GDF) that spans the entire sky. To a certain extent, Ribbon separation methods enabled examining its evolution independent of the underlying GDF. Observations over a full solar cycle revealed the Ribbon’s evolving nature, with intensity variations closely tracking those of the solar wind (SW) structure after a few years delay, accounting for the SW–ENA recycling process. In this work, we examine the Ribbon structure, namely its ENA fluxes, angular extent, width, and circularity properties for two years, 2009 and 2019, representative of the declining phases of two adjacent solar cycles. We find that, (i) the Ribbon ENA fluxes have recovered in the nose direction and south of it down to ∼25° (for energies below 1.7 keV) and not at mid and high ecliptic latitudes; (ii) the Ribbon width exhibits significant variability as a function of azimuthal angle; (iii) circularity analysis suggests that the 2019 Ribbon exhibits a statistically consistent radius with that in 2009. The Ribbon’s partial recovery is aligned with the consensus of a heliosphere with its closest point being southward of the nose region. The large variability of the Ribbon width as a function of azimuth in 2019 compared to 2009 is likely indicative of small-scale processes within the Ribbon.
Magnetic Helicity Associated with the Proton Temperature Anisotropy Instabilities in the Presence of an Imbalanced Solar Wind Turbulence
Authors: Markovskii S. A. , Vasquez Bernard J.
Published: July 2023

Some of the most common processes in the solar wind, such as turbulence and wave generation by instabilities, are associated with spectral magnetic helicity. Therefore, the helicity is a convenient tool to investigate these processes. We use three-dimensional nonlinear kinetic simulations with particle ions and fluid electrons to analyze the magnetic helicity produced by proton temperature anisotropy instabilities coexisting with an ambient turbulence. The symmetry of the unstable system is violated by alpha-particle streaming with respect to protons along the mean magnetic field. At the same time, the turbulent fluctuations are also imbalanced by a nonzero cross-helicity. We show that in the nonlinear phase of the instability the resulting helicity structure is different from the prediction of the linear theory. In particular, it contains sign reversals and multiple domains of nonzero helicity. The turbulence generates its own magnetic helicity signature, which extends over a wide range of angles around the direction perpendicular to the mean magnetic field, and can have a sign the same as or opposite to that of the instability. These findings are consistent with the observed helicity spectra in the solar wind.
V-type Asteroids as the Origin of Mesosiderites
Authors: Libourel Guy , Beck Pierre , Nakamura Akiko M. , Vernazza Pierre , Ganino Clement , Michel Patrick
Published: July 2023

We present the results of a campaign of hypervelocity impact experiments on natural mesosiderite targets, using representative main asteroid belt impact speeds. The objective is to document further the surface evolution of iron-rich asteroids. In contrast with iron meteorites, we demonstrate the fragile behavior of mesosiderite at impact since experiments result in both cratering and catastrophic disruption. The behavior of metal-rich asteroids at impact is thus highly influenced by the original ratio of metal/silicate. A visible to near-infrared spectral analysis shows that the pyroxene silicate signature of impacted mesosiderites, or their ejecta, is fully preserved. Our results thus rule out a mesosiderite hypothesis for the very nature of M/X-type asteroids including (16) Psyche, despite a small fraction of its surface possibly being covered by mesosiderite-like materials. Finally, we address the question of whether mesosiderites and howardite–eucrite–diogenite (HED) meteorites are genetically linked to (4) Vesta or other differentiated asteroids in the main belt based on their spectral similarity.
Jupiter’s Early Luminosity May Have Driven off Io’s Initial Water Inventory
Authors: Bierson Carver J. , Fortney Jonathan J. , Trinh Kevin T. , Kreslavsky Mikhail A.
Published: July 2023

After its formation, Jupiter was substantially more luminous than it is at the present day (104 times). Right after formation, the inner satellites Io and Europa would have received an order-of-magnitude larger incoming flux from Jupiter, than solar insolation. However, little work has been done to examine the impact this would have had on the Galilean satellites. In this work we explore the possibility that Jupiter’s early luminosity could have caused the loss of any initial water inventory on Io and Europa. We find that, depending on Jupiter’s luminosity after the proto-Jovian disk dissipates, heating from Jupiter could drive rapid water loss via hydrodynamic escape. If early tidal heating dehydrated Io’s accreted silicates, this may provide a mechanism to lose Io’s initial water inventory.
Current Developments in the Research Data Repository RADAR
Authors: Bach Felix , Soltau Kerstin , Göller Sandra , Bonatto Minella Christian , Hofmann Stefan
Published: July 2023

Effective research data management solutions and infrastructures are crucial for ensuring the long-term preservation, accessibility, and reusability of research data, not only to facilitate the verification and validation of discoveries but also to reduce or even avoid experimental redundancy. We present our first implementation steps of the Fair Digital Object Framework for RADAR, a generic research data repository, and discuss our experience with several approaches as well as their benefits and shortcomings. By embedding signposted typed link headers in our landing pages we increased the interoperability by making them machine-readable and -actionable, enabling the new data visiting paradigm additionally to metadata harvesting using the Open Archives Initiative Protocol for Metadata Harvesting.
A new troglobitic species of the genus Troglocoelotes Zhao & S. Li, 2019 (Araneae, Agelenidae, Coelotinae) from Guizhou, China
Authors: Zhou Guchun , YE Ru-rui , Zhao Zhe
Published: July 2023

Troglocoelotes Zhao & S. Li, 2019 is the only known genus of Coelotinae of which all species have deep morphological adaptations to the subterranean environment, such as depigmentation of body, degenerated or absent eyes and, frequently, with attenuated bodies and/or appendages. Four species of Troglocoelotes have been reported from Guizhou Province, China.

A new funnel-web spider of the genus Troglocoelotes is described and illustrated on the basis of a single female specimen from Tongren City, Guizhou: Troglocoelotes sinanensis sp. nov. Additionally, photos of the collection site and a distribution map are also provided.
Molecular and morphological evidence reveals hidden new taxa in Ochlodes ochraceus (Bremer, 1861) (Lepidoptera, Hesperiidae, Hesperiinae) from China
Authors: Zhu Lijuan , Hou Yongxiang , Chiba Hideyuki , Osada Yohei , Huang Zhenfu , Sinev Sergey Yu. , Wang Min , Fan Xiaoling
Published: July 2023

Two new species of Ochlodes Scudder, 1872, Ochlodes pseudochraceus Zhu, Fan & Wang, sp. nov. and Ochlodes cryptochraceus Zhu, Fan & Chiba, sp. nov., are found in China and described, and Ochlodes rikuchina (Butler, 1878) stat. rev. is restored. A lectotype is designated for Pamphila ochracea Bremer, 1861, and a neotype is designated for Pamphila rikuchina Butler, 1878. Overall, the two new species are similar to Ochlodes ochraceus (Bremer, 1861). They, however, can be distinguished from the latter and other species in the genus: O. pseudochraceus has long radial spots in spaces R3-5, and the lateral process of the phallus gradually widens at the distal half in male genitalia; O. cryptochraceus has the lateral process of the phallus enlarged only at the distal tip. Based on the phylogenetic analyses of the mitochondrial COI gene, members of currently defined O. ochraceus are grouped into four clades. The genetic distances between O. pseudochraceus and O. ochraceus, O. cryptochraceus and O. ochraceus, O. rikuchina and O. ochraceus, and O. pseudochraceus and O. cryptochraceus are 3.2%, 2.1%, 1.9%, and 2.7%, respectively. Based on the molecular and morphological evidence, O. pseudochraceus, O. cryptochraceus, and O. rikuchina are treated to be distinct species. The adult habitus and male and female genitalia of the new species are illustrated as well as those of O. ochraceus and O. rikuchina.
Review of the genus Gigantothrips Zimmermann from China and Southeast Asia (Thysanoptera, Phlaeothripidae, Phlaeothripinae)
Authors: Dang Lihong , Mound Laurence , Zhang Hongrui
Published: July 2023

Gigantothrips is a genus of leaf-feeding species from the Old World tropics that is distinguished from Gynaikothrips and Leeuwenia by the large number of tergal wing-retaining setae. Eight species are recognized from China and Southeast Asia including G. tibetanussp. nov. from Tibet and G. yunnanensissp. nov. from Yunnan, both taken on the leaves of Ficus trees. An illustrated identification key to these eight species is provided here.
Corneal Biomechanical Evaluation After Meniscus-Shaped Stromal Lenticule Addition Keratoplasty (MS-SLAK) for Keratoconus
Authors: Pedrotti Emilio , Bonacci Erika , Fasolo Adriano , Longo Rosa , Pastore Giovanlorenzo , Vinciguerra Riccardo , Vinciguerra Paolo , Marchini Giorgio
Published: July 2023

Purpose:

To evaluate corneal biomechanical changes after meniscus-shaped stromal lenticule addition keratoplasty (MS-SLAK) performed for the treatment of keratoconus.

Methods:

This interventional study included patients affected by advanced keratoconus (stage III and IV) who underwent examination with a dynamic Scheimpflug analyzer and non-contact tonometer (Corvis ST; Oculus Optikgeräte GmbH) at baseline and 12 months after MS-SLAK. The biomechanical parameters evaluated in this study were integrated inverse radius (1/R), deformation amplitude ratio (DA ratio), stiffness parameter at first applanation (SP-A1), biomechanical intraocular pressure (bIOP), central corneal thickness (CCT), and stress-strain index (SSI).

Results:

Sixteen patients were enrolled in the study. The analysis was ultimately conducted on 15 patients. Comparative analyses showed an increase in corneal stiffness as demonstrated by a rise in SSI (
P
< .0001) and SP-A1 (
P
< .0001) and a decrease in DA ratio (
P
< .0001) and 1/R (
P
= .01). A significant increase in CCT was found (
P
< .0001). No statistically significant modification was found for bIOP (
P
= .43).

Conclusions:

The corneal biomechanical analyses evaluated by the Corvis ST showed that MS-SLAK for advanced keratoconus is able to increase corneal overall stiffness. This result is explained by the significant increase in thickness induced by MS-SLAK.

[
J Refract Surg
. 2023;39(7):499–504.]
Laboratory Evaluation of Optical Performance of Aspheric Monofocal Intraocular Lenses With Various Anti-misalignment Designs Under the Influence of Decentration and Tilt
Authors: Ren Zhichao , Liu Xiaomin , Zhang Ying , Li Wenfeng , Huang Yusen
Published: July 2023

Purpose:

To assess the effectiveness and characteristics of aspheric monofocal intraocular lenses (IOLs) with different anti-misalignment designs.

Methods:

Three types of anti-misalignment IOLs (with aspheric balance curve design, ZO optic design, and high-order optical aspheric surface design) and no anti-misalignment IOLs were involved. From each type of these IOLs, +8.00, +17.00, and +26.00 diopter (D) lenses were used for detection at the 3- and 4.5-mm apertures. The modulation transfer function (MTF) and 50% of the maximum value of the MTF (MTF50) were measured while IOLs were centered, decentered by 0.3, 0.5, and 0.7 mm, and tilted by 3, 5, and 7 degrees.

Results:

Within the average clinical range of IOL malpositions (0.3-mm decentration or 3.00-D tilt), the anti-misalignment design slightly reduced the negative effect of decentration and tilt (
P
= .1845 and .6495,
t
test) on the optical performance of IOLs. Beyond the average range, the anti-misalignment design narrowed the reductions of MTF50 from 23.18% to 8.60% for decentration and from 40.31% to 27.96% for tilt (
P
= .0010, two-factor analysis of variance). The optical performance varied in anti-misalignment IOLs with different diopters, types, and degrees of malpositions at different aperture sizes. In both photopic and mesopic conditions and all probable misalignments, from the perspective of MTF50, better sharpness generally may be achieved with the 8.00-D ZO optic designed lens and 17.00-D high-order optical aspheric surface designed lens. For 26.00-D IOLs with different misalignments, the ABC design was more resistant to decentrations, whereas the high-order optical aspheric surface design was more resistant to tilts.

Conclusions:

Aspheric monofocal IOLs with an anti-misalignment design can effectively resist decentration and tilt. Anti-misalignment IOLs for complicated cataract could be selected according to diopter of IOL and types and degrees of probable IOL malpositions.

[
J Refract Surg
. 2023;39(7):446–455.]
Epithelial Thickness Mapping in Keratoconic Corneas: Repeatability and Agreement Between CSO MS-39, Heidelberg Anterion, and Optovue Avanti OCT Devices
Authors: Feng Yue , Reinstein Dan Z. , Nitter Tore , Archer Timothy J. , McAlinden Colm , Bertelsen Geir , Stojanovic Aleksandar
Published: July 2023

Purpose:

To assess repeatability and agreement of corneal epithelial thickness mapping in eyes with keratoconus using three optical coherence tomography (OCT) devices featuring different technologies: spectral-domain (SD) OCT combined with Placido disk corneal topography (MS-39), swept-source OCT (Anterion), and SD-OCT (Avanti).

Methods:

Three consecutive measurements were acquired with the three devices in 60 eyes with keratoconus. The mean epithelial thickness was calculated in the central 2-mm zone and in 2- to 5-mm and 5- to 7-mm diameter rings. The repeatability was calculated using pooled within-subject standard deviation (S
w
). The agreement was assessed by paired
t
tests and Bland-Altman plots.

Results:

The repeatability (Sw) of the epithelial thickness for the central 2-mm zone was 0.91, 0.71, and 0.93 μm for the MS-39, Anterion, and Avanti, respectively. All thicknesses with the MS-39 were greater than those of the Anterion and Avanti, with mean differences of 4.11 ± 1.34 μm (
P
< .001) and 0.52 ± 1.30 μm (
P
= .003), respectively. The 95% limits of agreement were 1.484 to 6.736 μm for the MS-39 and Anterion, −3.068 to 2.028 μm for the Avanti and MS-39, and 1.258 to 5.922 μm for for the Avanti and Anterion.

Conclusions:

Epithelial thickness mapping results were most repeatable with the Anterion, followed by the MS-39 and Avanti. The MS-39 gave the thickest values, followed by the Avanti and Anterion. The differences were significant, making the devices not interchangeable for epithelial thickness mapping in eyes with keratoconus.

[
J Refract Surg
. 2023;39(7):474–480.]
An analysis of the isoparametric bilinear finite volume element method by applying the Simpson rule to quadrilateral meshes
Authors: Mu Shengying , Zhou Yanhui
Published: July 2023

In this work, we construct and study a special isoparametric bilinear finite volume element scheme for solving anisotropic diffusion problems on general convex quadrilateral meshes. The new scheme is obtained by employing the Simpson rule to approximate the line integrals in the classical isoparametric bilinear finite volume element method. By using the cell analysis approach, we suggest a sufficient condition to ensure the coercivity of the new scheme. The sufficient condition has an analytic expression, which only involves the anisotropic diffusion tensor and the geometry of quadrilateral mesh. This yields that for any diffusion tensor and quadrilateral mesh, we can directly judge whether this sufficient condition is satisfied. Specifically, this condition covers the traditional $ h^{1+\gamma} $-parallelogram and some trapezoidal meshes with any full anisotropic diffusion tensor. An optimal $ H^1 $ error estimate of the proposed scheme is also obtained for a quasi-parallelogram mesh. The theoretical results are verified by some numerical experiments.
Bronastodobni depo iz Gorenjega Suhadola v Gorjancih
Authors: Pavlin Primož , Stipančić Petra
Published: July 2023

Leta 2002 so na pobočju Gorjancev v bližini Gorenjega Suhadola naleteli na večji depo bronastih predmetov. Sestavljajo ga napadalno orožje, orodje, nakit, pločevina in ingoti. Časovni razpon predmetov sega od srednje bronaste dobe do začetka mlajšega obdobja kulture žarnih grobišč. Primerjave za večino predmetov iz depoja se najdejo v depojih druge stopnje KŽG iz Karpatske kotline in z zahodnega Balkana.
Biritualna nekropola iz starejše železne dobe v Mengšu
Authors: Škvor Jernejčič Brina , Štibernik Gregor , Gruškovnjak Luka
Published: July 2023

Mengeš je s številnimi grobišči in utrjeno naselbino na Gobavici ter poselitvenim arealom neposredno ob vznožju gradišča eno pomembnejših najdišč gorenjsko-ljubljanske halštatske skupine. V članku so predstavljeni rezultati arheoloških izkopavanj iz leta 2003 na grobišču Zavrti, kjer so bili odkriti skeletni in žgani grob ter pokop kobile iz mlajšehalštatskega obdobja. Arheološka datacija je bila potrjena z radiokarbonsko analizo. Gre za izjemno odkritje, saj pokop celega konja v okviru pogrebnega obreda in kulta do zdaj iz gorenjsko-ljubljanske skupine še ni bil znan, prav tako je na Gorenjskem v tem času izjemen skeletni pokop. Analiza vseh skeletnih grobov iz starejše železne dobe iz Mengša je pokazala, da se je inhumacija pojavila že od konca 9./8. st. pr. n. št., tak način pokopa se je ohranil tudi v mlajšehalštatski čas. Nova odkritja potrjujejo, da je bil Mengeš v starejši železni dobi na meji interesnih območij posameznih skupnosti, še posebej svetolucijske in dolenjske halštatske skupine.
Des coupables qui sont aussi des victimes ?
Authors: Kayser Lise
Published: July 2023

Cet article montre que les femmes détenues sont incitées à faire sens de leur carrière délinquante en se reconnaissant comme victimes de la violence des hommes. Les femmes qui sont en prison ont en effet été particulièrement exposées aux violences physiques et sexuelles au cours de leurs trajectoires. Cette forte victimation suscite l’intervention des professionnelles de santé, qui éduquent les détenues à identifier les violences masculines et à s’en prémunir. Si certaines d’entre elles adhèrent au récit victimaire, la plupart refusent de se conformer au discours institutionnel. La propension à se raconter à l’aune des violences subies est alors fortement déterminée par le rapport qu’entretiennent les détenues à l’institution et aux professionnelles qui l’incarnent.
Conhecimentos sociotécnicos e comunitários para uma nova relação do saber-fazer no enfrentamento a desastres
Authors: Oliveira Simone Santos , Portella Sergio
Published: July 2023

Descrevemos a experiência de uma Comunidade Ampliada de Pesquisa como um potencial agregador de outros dispositivos que buscam romper com a herança colonial de vulnerabilidade e apostam na tessitura de um saber aderente, territorial, comunitário de grupos humanos que vivenciaram desastres. Os cenários de mudanças climáticas apontados pelos relatórios do Painel Intergovernamental para a Mudança de Clima alertam para o aumento do número de eventos críticos. Desastres como processos reveladores das vulnerabilidades dos territórios, resultantes do modelo de desenvolvimento. A experiência relatada se desenvolve nas cidades serranas do Rio de Janeiro que vivenciaram a catástrofe de 2011, a partir de um conjunto de dispositivos como a cartografia social, produção de memória comunitária e índices comparativos de vulnerabilidades socioambientais, para compreender o grau de aderência e desaderência dos conhecimentos territorializados e promover o encontro de saberes entre redes sociotécnicas, de gestão e comunitárias.
A ergonomia face à mudança global : Que modelos em ergonomia ?
Authors: Caroly Sandrine , Weissbrodt Rafaël
Published: July 2023

Estão a surgir novos riscos decorrentes de alterações globais - climáticas, tecnológicas e sociais - que implicam a consideração de múltiplas escalas espaciais e temporais e de uma diversidade de intervenientes. Para lhes fazer face, é necessário desenvolver a participação dos cidadãos, reforçar a dimensão territorial e ter em conta a vulnerabilidade dos indivíduos. Este texto visa compreender os efeitos destes desenvolvimentos na ergonomia da atividade, que é chamada a renovar os seus conceitos e métodos de intervenção, mantendo a sua especificidade. São estabelecidas ligações com as ciências do ambiente e as ciências políticas. Dois casos ilustram a evolução do modelo de análise da atividade : o das mulheres guias de montanha e o dos atores da gestão do risco de degradação do permafrost. As alterações climáticas estão a levar a ergonomia a ter em conta as dimensões sociais e as redes de atores nos seus modelos.
O papel da experiência profissional na articulação de uma prevenção sustentável para o ambiente e o trabalho : Exemplos em dois sectores em evolução, a manutenção dos espaços verdes e a horticultura
Authors: Buchmann Willy , Zara-Meylan Valérie
Published: July 2023

A partir de duas pesquisas ergonómicas, uma no sector da horticultura e outra na manutenção de espaços verdes, os autores analisam o papel da experiência para pensar o desenvolvimento sustentável, articulando as condições de trabalho, a prevenção dos riscos e a proteção do ambiente, integrando as questões de sustentabilidade da produção ou dos serviços. Em ambos os casos, as questões da sustentabilidade da mudança e da prevenção levaram a que a experiência fosse abordada como um recurso essencial em diferentes níveis de reflexão, de ação e de tomada de decisão, para ajudar as arbitragens organizacionais e as orientações estratégicas face às evoluções sectoriais. Em conclusão, as duas pesquisas mostram como a experiência pode constituir um recurso em contextos de mudança, nomeadamente para antecipar as configurações receadas ou para refletir o trabalho futuro, articulando questões relativas ao trabalho e a desafios ambientais.
Ler ou reler “A origem das Técnicas”, de André-Georges Haudricourt, para refletir sobre nossa maneira de considerar as técnicas na atualidade
Authors: Prot Bernard
Published: July 2023

Esta nota presenta un texto del etnobotánico André-Georges Haudricourt publicado en 1965 que trata sobre “el origen de las técnicas”. Un breve recordatorio del contexto histórico precede la puesta en evidencia de los argumentos del texto original que sostiene que “la tecnología es la actividad más racional que existe”. Luego, el autor subraya las características de la obra de Haudricourt por medio de varios ejemplos : la misma es concreta, comparativa, histórica. La última parte menciona varios trabajos contemporáneos que se inscriben en la misma perspectiva, particularmente en el campo de la formación y de las ciencias del trabajo.
As atividades das "Mulheres das águas": questões para uma ergonomia contemporânea
Authors: Nascimento Adelaide , Probst Isabelle , Lacomblez Marianne , Filho José Marçal Jackson , Garrigou Alain , Novaes José Roberto
Published: July 2023

O objetivo deste artigo é questionar a ergonomia a partir do documentário-intervenção de Roberto Novaes, "Mulheres das águas", onde são descritas e comentadas as atividades das pescadoras nos manguezais do Nordeste do Brasil. Seu modo de vida, seu trabalho e a sobrevivência de suas famílias estão ameaçados pela poluição das grandes indústrias e pelo turismo que danifica o ecossistema. O documentário destaca o compromisso e a resistência dessas mulheres em busca de preservar seus territórios de pesca, manter e ampliar seus direitos sociais e melhorar suas condições de trabalho e saúde. Exploramos questões levantadas pelo documentário que desafiam a ergonomia contemporânea e convocam : a categoria de análise da interseccionalidade, a noção de nocividade ampliada, a tradição de formação freireana, e a abordagem do território como moldado na atividade de trabalho.
Emergency Distance Education From the Perspective of a University During the COVID-19 Era
Authors: Yildiz Merve , Yilmaz Ceyhan
Published: July 2023

In this chapter, the reflections of the emergency distance education process experienced in a state university in Turkey were presented. The decisions taken during the pandemic period, the triggers of the decisions, the changes made, the problems encountered, the solution methods developed to solve these problems and the lessons learned were discussed. In addition, by associating the inferences obtained with the findings of the studies in the literature, indicators were provided to researchers, practitioners, and policy makers in the field of distance education to determine their future strategies. In this context, it is thought that sharing and criticizing the practices made are important in terms of being a guide for similar situations that may be encountered in the future.
Flipping Gradual Release
Authors: Shively Kate , Sydnor Jackie
Published: July 2023

This chapter focuses on how an in-person practicum transitioned to an online practicum, offering field experience in an online venue; thus, providing teacher candidates (TCs) opportunities to gain experience teaching in online learning environments. Grounded in the gradual release of responsibility model and the technological pedagogical content knowledge (TPACK) framework, findings from this study present how faculty and TCs worked together through instructional technology problems. Specifically, findings illustrate how an emergency online practicum situated TCs in relevant education problems and embraced productive struggle. This chapter additionally provides insight for those exploring how to create meaningful online fieldwork/clinical experiences for TCs as a valuable component in their teacher preparation program.