bluuebunny/crossref_metadata_2025 huggingface dataset:
Rb-Sr and U-Pb age patterns in polymetamorphic sediments from the southern part of the East Greenland Caledonides
Authors:   lnstitut fur Kristalllographie und Petrographie, Eidgenossische Technische Hochschulle Zurich, Hansen B. T. , Bär M. T. ,   lnstitut fur Kristalllographie und Petrographie, Eidgenossische Technische Hochschulle Zurich, Higgins A. K. ,   GGU
Published: March 2022

Rb-Sr analyses on sediments once believed to be late Precambrian show evidence of a middle Proterozoic metamorphic event overprinted by a Caledonian event which only partly reset the isotopic systems. U-Pb analyses on monazites support the Rb-Sr data, whereas zircons show evidence of a detrital origin from an older source region. The age patterns support speculation of the presence of widespread early Proterozoic deposition and a signifiiant middle Proterozoic orogenic episode within the East Greenland Caledonides.
Mesozoic geology and palaeogeography of Hochstetter Forland, East Greenland
Authors:   Geologisk Museum, Surlyk Finn
Published: March 2022

Mesozoic geology and palaeogeography of Hochstetter Forland, East Greenland
Age of the Mo-Clay Formation
Authors:   DGU, Hansen Jens Morten
Published: March 2022

On the basis of dinoflagellates the Mo-Clay Formation of Denmark can be assigned to the Upper Paleocene and Lower Eocene.
The ostracod fauna from the Maastrichtian white chalk of Denmark
Authors:   lnstitut for historisk Geologi og Palæontologi, Jørgensen Niels Oluf
Published: March 2022

The ostracod fauna from the Maastrichtian white chalk of Denmark includes 95 species representing 34 different genera. The qualitative composition is rather homogeneous throughout the strata studied, in­dicating a mature and well-balanced community in middle to outer shelf environments. Two biozones in the Danish Maastrichtian are established on the basis of ostracod species.
Depth adaptation in Amphistegina: change in· lamellar thickness
Authors:   Institute of Historical Geology and Palaeontology, Hallock P. , Hansen J. ,   Institute of Historical Geology and Palaeontology,
Published: March 2022

Using specimens of Amphistegina lessonii, A. lobifera, and A. papillosa from the Gulf of Elat, changes in shell shape with depth observed in previous studies can be quantitatively accounted for by a corresponding trend in thickness of secondary laminae.
Intrusive events at Kvanefjeld in the Ilimaussaq igneous complex
Authors:   GGU, Nielsen Bjarne Leth , Steenfelt Agnete ,   GGU
Published: March 2022

The geology of the Kvanefjeld region in the Ilimaussaq intrusive complex is reviewed with special empha­sis on intrusive mechanism and on the spatial distribution of rock units before the intrusion of the lujavrite. The lujavrite was emplaced by permissive intrusion, and subsidence of blocks of the older rocks derived from the roof of supracrustals, gabbro, and from the earlier syenites of llimaussaq, took place extensively. It is argued that the present level of erosion in the K vanefjeld area is about 300 m below the roof of the intrusion. The early augite syenite and alkali syenite in the southern and central part of K vanefjeld are believed to be close to their original position as a large raft in the naujaite. The northern limit of the augite syenite intrusion was probably close to the present limit of the augite syenite. The origin of the marginal deformation zones in the country rock xenoliths is discussed and it is proposed that the deformed zones represent early shear zones and joints which were heated and metaso­matically altered before the intrusion of the. lujavrite. The ultimate shearing and deformation occurred during the collapse of the roof when the bulk of the lujavrite was intruded.
The methodology of kineto-stratigraphy as applied to glacial geology
Authors: Berthelsen Asger
Published: March 2022

Studies of contorted drift sequence in southeastern Denmark have resulted in a fusion of the working methods and principles of glacial-tectonics and lithostratigraphy and in the formulation of a new type of stratigraphy, kineto-stratigraphy, where main emphasis is placed on the study of the directional elements that reflect the movement patterns (kinetics) of former ice sheets. Through studies of principal localities, where deposits and deformation from more than one glacial advance are found, regional kineto­stratigraphic drift units are established, and local glacial deposits are classified accordingly. The relative significance of the various directional elements is discussed, and a brief outline of the new Weichselian kineto-stratigraphy of southeastern Denmark is given.
Tertiary igneous activity at Giesecke Bjerge, northern East Greenland
Authors:   Geologisk Museum, Hald Niels
Published: March 2022

The Tertiary igneous activity at Giesecke Bjerge, northern East Greenland, was initiated by the eruption of plagioclase--porphyritic hyaloclastic breccias and lavas with tholeiitic affinity. These were succeeded by transitional and mildly alkaline lavas, mainly ankaramites and pyroxene-olivine porphyritic basalts. Tholeiitic sills, possibly contemporaneous with the older lavas, were intruded in the sediments beneath the volcanic sequence. Both the lavas and the sills were cut by bas_altic dykes. The older lavas at Giesecke Bjerge are similar to the bulk of Tertiary lavas in East Greenland while the younger lavas show a resemblance to the Quaternary volcanic products of Jan Mayen. It is suggested that the formation and emplacement of the transitional and alkaline lavas were related to a WNW trending fracture system following Kejser Franz Josephs Fjord.
The Impact of Corporate Governance in the Internal Control System : A Field Study in the Iraqi Business Environment
Authors: Al-Karawi Ali Mohammed Yousef , Alsfan Maytham Bader Bawie , Mousa Thaer Umran
Published: March 2022

This research aims to define the concept of corporate governance and clarify the role of its boards of directors in enhancing the effectiveness of the internal control system because it bears the ultimate responsibility for its design, implementation and evaluation ,Therefore, the research relied on the method of the descriptive and analytical approach to achieve the goal. The research sample consists of a number of employees working in the internal control departments in the corporates. The research relied on the questionnaire in collecting data from the sample, analyzing it and testing it according to its statistical approach. The study concluded that, according its statistical results, Improved performance depends on the sobriety of the internal control system based on a coherent corporate governance framework that contributes to good risk management by designing a regulatory structure that defines responsibilities and powers between the parties involved in operational processes. Accordingly, the study recommends determining the weakness and deficiency points in internal control systems’ mechanisms as well as developing and determining plans that focus on addressing this deficiency, developing performance, and obligating all corporates to define governance requirements and strive to implement it and act accordingly.
Evaluating The Performance of The Supply Chain Using Artificial Intelligence Techniques: A Case Study In The Dairy Industry
Authors: Musa Ali Rehman , Maan Assist. Prof. Harith Yarub
Published: March 2022

The issues of evaluating and improving supply chains are among the complex issues due to the diversity of factors affecting performance, as well as the gap between these factors and how they are applied. The current study aims to evaluate the performance of the Supply chains of the dairy factory, College of Agriculture, using artificial neural networks and fuzzy logic by relying on the balanced scorecard as a basic methodology for evaluation, which consists of five main aspects (financial - customer - internal processes - learning and growth - Suppliers). Each aspect has several sub-criteria and by obtaining the opinions of experts in evaluating these criteria for several days and then training the network to make a decision related to evaluating the supply chain and processing the outputs of the neural network with fuzzy logic to classify performance into four main categories, each of which represents the state of the supply chain and what distinguishes the model its ability to continuously evaluate the supply chain and employ artificial intelligence tools in managing the supply chain.
BAŞARILI OKUL LİDERLİĞİ ÖLÇEĞİ (BAŞOL): BİR GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI
Authors: YILMAZ Salih , BÖRÜ Neşe
Published: March 2022

Bu araştırmada, öğretmenlerin gözünden başarılı okul liderliği uygulamalarının değerlendirmesini sağlayacak geçerli ve güvenilir bir ölçme aracı geliştirilmesi amaçlanmıştır. Madde havuzunun oluşturulmasında başarılı okul liderliği uygulamalarının bir araya getirildiği makaleler temel alınmıştır. Çalışma kapsamında alınan uzman görüşleri ve ön uygulamalarla oluşan form, ölçeğin yapı geçerliğini test etmek için gerekli verilerin toplanmasında kullanılmıştır. Açımlayıcı faktör analizinde 249, doğrulayıcı faktör analizinde 210 öğretmen olmak üzere toplam 459 katılımcı araştırmaya dâhil edilmiştir. Açımlayıcı faktör analizi sonucunda açıklanan toplam varyans oranının % 66.816; doğrulayıcı faktör analizi sonucunda ise modelim uyum değerlerinin χ²/sd=2.278, CFI=.95, GFI=.90, AGFI=.86, RMSEA=.078, SRMR=.041, RMR=.032, NNFI=.94, NFI=.91 olduğu görülmüştür. Cronbach Alpha güvenirlik değeri .95 olarak hesaplanmıştır. Analizler sonunda 13 madde ve tek faktörden oluşan bir ölçek elde edilmiştir. Araştırma sonuçları, Başarılı Okul Liderliği Ölçeği’nin (BAŞOL) ilkokul, ortaokul ve lisede görev yapan müdürlerin başarılı okul liderliği düzeylerini belirlemede kullanılabilecek geçerli ve güvenilir bir ölçme aracı olduğunu göstermektedir.
The Role of Suprascapular Nerve Release in Rotator Cuff Repair: a Protocol for Systematic Review and Meta-Analysis
Authors:   Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan, Chang Ke-Vin
Published: March 2022

Review question / Objective: To evaluate whether additional suprascapular nerve (SSN) release can improve functional outcomes and shoulder pain more than rotator cuff repair only. Condition being studied: To examine the usefulness of SSN release in patients undergoing rotator cuff tendon repair. Information sources: PubMed, Cochrane CENTRAL, EMBASE, Clincial.gov. and Web of Science databases will be searched for the relevant studies without language restriction. Case reports, case series, conference abstracts, animal studies or those performed in laboratory settings will be excluded from the present meta-analysis.
Harina de cascarilla de rosa mosqueta: obtención, composición nutricional, capacidad antioxidante y uso en galletas
Authors: Cañulaf Ortiz Cecilia , Nepote Valeria , Ryan Liliana Cecilia
Published: March 2022

Área temática: Tecnología de los alimentos. Introducción: El fruto de la rosa mosqueta (Rosa rubiginosa L) es la parte redonda de la flor del rosal, que se forma en la parte inferior de los pétalos. La cascarilla de este fruto es utilizada mayoritariamente como infusión en reemplazo del té. Objetivo: Obtener harina a partir de la cascarilla de rosa mosqueta (Rosa rubiginosa L), determinar su composición química y su capacidad antioxidante para ser empleada en la elaboración de galletas y evaluar su aceptabilidad en jueces no entrenados. Metodología: Estudio empírico, descriptivo y transversal. Se determinó la composición química y la capacidad antioxidante (DPPH) de la harina de cascarilla de rosa mosqueta (Rosa rubiginosa L), procedente de la provincia de Neuquén, Argentina. Se elaboraron galletas dulces analizando la aceptabilidad de los atributos apariencia, color, textura, aroma y sabor, a través de una escala hedónica de 9 puntos con 103 jueces no entrenados. Se calcularon medias, desvíos estándares y frecuencias. Resultados: La composición química de la harina de rosa mosqueta en 100 g fue la siguiente: humedad 6,28 ± 0,06; lípidos 6,19 ± 0,56; proteínas 2,56 ± 0,12; cenizas 6,48 ± 0,35; carbohidratos 78,49 ± 0,59; hierro 4,07 ± 0,55 mg y calcio 543 ± 23,43 mg. Valor energético: 379,95 ± 5,61 kcal. Su capacidad secuestrante de radicales libres (DPPH) expresada como IC50 dio como resultado 117,09 ± 5,84 µg/mL. Las medias de aceptabilidad por jueces no entrenados de la galleta, según atributos, fueron: apariencia 7,14 ± 1,23, color 7,19 ± 1,31, textura 7,17 ± 1,5, aroma 6,53 ± 1,65 y sabor 7,15 ± 1,57. El producto fue aceptado por más del 91% de los participantes, el 81% incluiría la galleta en su alimentación y un 65% de los encuestados manifestó conocer la rosa mosqueta. Conclusión: Fue posible la obtención de harina a partir de la cascarilla de rosa mosqueta (Rosa rubiginosa L), fuente de nutrientes, de moderada actividad antioxidante y buena aceptabilidad para incluirla en diversas preparaciones.

Palabras clave: harina, rosa mosqueta, capacidad antioxidante
મુખ્યધારાના મીડિયામાં મહિલાઓનું પ્રતિનિધિત્વ અને પડકારો : અમદાવાદ શહેરની મહિલા પત્રકારોના સંદર્ભમાં
Authors: Parmar Gautam Babubhai
Published: March 2022

મીડિયા હાઉસમાં સમાચારની પસંદગી કરવામાં આવે છે અને તેમાં જરૂરી સુધારા-વધારા કર્યા પછી લોકો સમક્ષ રજૂ કરવામાં આવે છે. મીડિયા હાઉસમાં પુરૂષો અને મહિલાઓ બંને કામ કરે છે ત્યારે આ જેન્ડરને લઈને વિવિધ મુદા પર અસમાનતા જોવા મળે છે. મહિલા પત્રકારોની સંખ્યા અને પુરૂષ પત્રકારોની સંખ્યામાં ભારે તફાવત મીડિયાની ઓફિસમાં જોવા મળે છે. આ સિવાય ફિલ્ડ વર્ક, યોગ્ય મહેનતાણું, કામનો બોજો વગેરે મુદે પણ જેન્ડરને લઈને ભેદભાવ હોય છે. પ્રસ્તુત સંશોધનકાર્યમાં અમદાવાદ શહેરમાં આવેલી મુખ્યધારાના મીડિયા હાઉસની ઓફિસમાં મહિલા પત્રકારોના પ્રતિનિધિત્વ અને તેમને ક્યાં ક્યાં મુદે પુરૂષોની સાપેક્ષમાં વધારે સંઘર્ષ કરવો પડે છે તેના વિશે વિસ્તૃત સંશોધન કરવામાં આવ્યું છે.
EXPLORING THE IDEA OF EDUCATION FROM PHILOSOPHICAL STANDPOINT
Authors: Dalal Jyoti
Published: March 2022

This paper addresses the question of education by drawing from two significant philosophical texts – Plato’s cave allegory as book VII in his Republic and Kant’s What is Auflarung? (Enlightenment). They provide us with an important vantage point to problematize the question of education in the contemporary times. These classical texts have stood the challenges of times and today they provide us with important reminders as we struggle with the direction that education is taking. In the language of Giorgio Agamben, one can locate certain untimeliness to these texts, as their significance goes beyond any temporality.
While providing the close reading of Plato’s cave allegory and Kant’s article, the paper explores three key ideas that emerge from these two texts – turning around, critique and Auflarung (enlightenment). By developing these ideas, the paper further explores their significance in the present times. The contemporary modern, utilitarian instrumental education has become bereft of the essence of education, which was always close to internal growth and development of an individual. In that light, it has become essential to draw from the work of scholars so that movement ahead can be charted.
A COMPARATIVE STUDY OF UNDERGRADUATE CURRICULUM IN TOURISM MANAGEMENT BETWEEN INDIA AND AUSTRALIA
Authors: Kumar Vineet , Bhinder Hardaman Singh , Nayak Kamakshya Prasad
Published: March 2022

The primary purpose of any tourismcurriculum is to cultivate the talents and skills of students to make them fit as per the needs of the industry. This helps to maintain tourism offerings as per the international standards for both domestic and international tourists. Tourism is an industry of expanding economic significance to both India and Australia. This study aims to compare the undergraduate tourism curriculum content in India with those offered in Australia in order to show up differences in approach, outcomes and design. As a sample 18 Indians and 7 Australian universities undergraduate curriculum content was selected. Content analysis is used to examine the curriculum content. The study result indicates that Australian universities have more specialization in tourism management/theory subjects as compared to Indian universities.However the present post-covid-19 pandemic era would be requiring more digital competency skills which are comparatively lesser in the current curriculum structurefor both the countries. The study provided valuable information in the form of cross-country curriculum content comparison and shows that under which components differences occur further it can be helpful for tourism curriculum planners to know the difference and to adapt well with the current industry requirement.
SENSE OF TIME DURING COVID - A STUDY ACROSS GENERATIONS
Authors: Mathur Ashish , Vikas Sona , Garg Urvee , Shekhawat Manishika
Published: March 2022

The outbreak of COVID-19 has hindered nation's economic development. Individuals have also lost their income, and they suffer severe depression. There's confusion about both the future and when the lockout gets over for things to return to normal also adds to the warped perception of population time. During this time frame the lack of points of reference results in an increase in memory gaps. Results showed that a pandemic's psychological effects do not affect everybody similarly; people are affected differently based on their industry, age, gender, etc. and other variables. Some individuals might be a little more susceptible to COVID's effect, and face various psychological repercussions such as tension, anxiety, uncertainty, insomnia, and other concerns. This is a primary study whose results reveal that the actions, motivation, and attitudes of each generation to external stimuli differ widely, be it in a work context or in private relationships. They react differently to the same circumstances or conditions. The pandemic had a long-lasting effect on people' physical and psychological wellbeing. The study revealed there is a difference in the intergenerational responses during a national pandemic when the entire generation is stuck in their houses experiencing the same global catastrophe. Therefore pandemic has affected differently age group people differently and also different impact on their sense of time.
An Atiyah Sequence for Noncommutative Principal Bundles
Authors:   iteratec GmbH, Germany, Schwieger Kay , Wagner Stefan ,   Blekinge Tekniska Högskola, Sweden
Published: March 2022

We present a derivation-based Atiyah sequence for noncommutative principal bundles. Along the way we treat the problem of deciding when a given ∗-automorphism on the quantum base space lifts to a ∗-automorphism on the quantum total space that commutes with the underlying structure group.
The LHS 1678 System: Two Earth-sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc
Authors: Silverstein Michele L. , Schlieder Joshua E. , Barclay Thomas , Hord Benjamin J. , Jao Wei-Chun , Vrijmoet Eliot Halley , Henry Todd J. , Cloutier Ryan , Kostov Veselin B. , Kruse Ethan , Winters Jennifer G. , Irwin Jonathan M. , Kane Stephen R. , Stassun Keivan G. , Huang Chelsea , Kunimoto Michelle , Tey Evan , Vanderburg Andrew , Astudillo-Defru Nicola , Bonfils Xavier , Brasseur C. E. , Charbonneau David , Ciardi David R. , Collins Karen A. , Collins Kevin I. , Conti Dennis M. , Crossfield Ian J. M. , Daylan Tansu , Doty John P. , Dressing Courtney D. , Gilbert Emily A. , Horne Keith , Jenkins Jon M. , Latham David W. , Mann Andrew W. , Matthews Elisabeth , Paredes Leonardo A. , Quinn Samuel N. , Ricker George R. , Schwarz Richard P. , Seager Sara , Sefako Ramotholo , Shporer Avi , Smith Jeffrey C. , Stockdale Christopher , Tan Thiam-Guan , Torres Guillermo , Twicken Joseph D. , Vanderspek Roland , Wang Gavin , Winn Joshua N.
Published: March 2022

We present the Transiting Exoplanet Survey Satellite (TESS) discovery of the LHS 1678 (TOI-696) exoplanet system, comprised of two approximately Earth-sized transiting planets and a likely astrometric brown dwarf orbiting a bright (V

J
= 12.5, K

s
= 8.3) M2 dwarf at 19.9 pc. The two TESS-detected planets are of radius 0.70 ± 0.04 R
⊕ and 0.98 ± 0.06 R
⊕ in 0.86 day and 3.69 day orbits, respectively. Both planets are validated and characterized via ground-based follow-up observations. High Accuracy Radial Velocity Planet Searcher RV monitoring yields 97.7 percentile mass upper limits of 0.35 M
⊕ and 1.4 M
⊕ for planets b and c, respectively. The astrometric companion detected by the Cerro Tololo Inter-American Observatory/Small and Moderate Aperture Telescope System 0.9 m has an orbital period on the order of decades and is undetected by other means. Additional ground-based observations constrain the companion to being a high-mass brown dwarf or smaller. Each planet is of unique interest; the inner planet has an ultra-short period, and the outer planet is in the Venus zone. Both are promising targets for atmospheric characterization with the James Webb Space Telescope and mass measurements via extreme-precision radial velocity. A third planet candidate of radius 0.9 ± 0.1 R
⊕ in a 4.97 day orbit is also identified in multicycle TESS data for validation in future work. The host star is associated with an observed gap in the lower main sequence of the Hertzsprung–Russell diagram. This gap is tied to the transition from partially to fully convective interiors in M dwarfs, and the effect of the associated stellar astrophysics on exoplanet evolution is currently unknown. The culmination of these system properties makes LHS 1678 a unique, compelling playground for comparative exoplanet science and understanding the formation and evolution of small, short-period exoplanets orbiting low-mass stars.
Gems of the Galaxy Zoos—A Wide-ranging Hubble Space Telescope Gap-filler Program*
Authors: Keel William C. , Tate Jean , Wong O. Ivy , Banfield Julie K. , Lintott Chris J. , Masters Karen L. , Simmons Brooke D. , Scarlata Claudia , Cardamone Carolin , Smethurst Rebecca , Fortson Lucy , Shanahan Jesse , Kruk Sandor , Garland Izzy L. , Hancock Colin , O’Ryan David
Published: March 2022

We describe the Gems of the Galaxy Zoos (Zoo Gems) project, a gap-filler project using short windows in the Hubble Space Telescope's schedule. As with previous snapshot programs, targets are taken from a pool based on position; we combine objects selected by volunteers in both the Galaxy Zoo and Radio Galaxy Zoo citizen-science projects. Zoo Gems uses exposures with the Advanced Camera for Surveys to address a broad range of topics in galaxy morphology, interstellar-medium content, host galaxies of active galactic nuclei, and galaxy evolution. Science cases include studying galaxy interactions, backlit dust in galaxies, post-starburst systems, rings and peculiar spiral patterns, outliers from the usual color–morphology relation, Green Pea compact starburst systems, double radio sources with spiral host galaxies, and extended emission-line regions around active galactic nuclei. For many of these science categories, final selection of targets from a larger list used public input via a voting process. Highlights to date include the prevalence of tightly wound spiral structure in blue, apparently early-type galaxies, a nearly complete Einstein ring from a group lens, redder components at lower surface brightness surrounding compact Green Pea starbursts, and high-probability examples of spiral galaxies hosting large double radio sources.
On Single-pulse Energies of Some Bright Pulsars Observed at 1.7 GHz
Authors: Radovan H. A. , Miranda-Colón N. , Zapata-Vélez A. J.
Published: March 2022

We present Arecibo observations of the bright pulsars B0301+19, B0525+21, B0540+23, B0611+22, and B0823+26 at 1.7 GHz with 100 MHz bandwidth. No giant pulses were found, except for B0823+26, where we recorded a giant interpulse with 230 times the average peak intensity. The postcursor in B0823+26 shows a symmetric double-peaked structure, indicating that it is frequency dependent. In all pulsars, for a given single-pulse peak intensity there is a range of equivalent widths up to a maximum, which becomes smaller the stronger the pulses are, thereby apparently limiting the energy output. Forming average profiles from pulses with certain equivalent widths leads to profiles with changing component characteristics and could allow exploring the magnetosphere at different heights, assuming a dipolar field geometry. We found that the normalized lag-1 autocorrelation coefficient for single-pulse energies can be over 0.5, indicating high correlations. From the first peak of the energy autocorrelation function a so-far-unobserved 15-period modulation is found for B0540+23, as well as a possible 10-period modulation for B0611+22. We also show that a fit of the Weibull distribution to the cumulative probability for the energies yields a better fit than the usual lognormal distribution. The cumulative probability distributions permit an estimate of the nulling fraction, which ranges from 0.6% for B0611+22 to 24% for B0525+21.
A Carbon/Oxygen-dominated Atmosphere Days after Explosion for the “Super-Chandrasekhar” Type Ia SN 2020esm
Authors: Dimitriadis Georgios , Foley Ryan J. , Arendse Nikki , Coulter David A. , Jacobson-Galán Wynn V. , Siebert Matthew R. , Izzo Luca , Jones David O. , Kilpatrick Charles D. , Pan Yen-Chen , Taggart Kirsty , Auchettl Katie , Gall Christa , Hjorth Jens , Kasen Daniel , Piro Anthony L. , Raimundo Sandra I. , Ramirez-Ruiz Enrico , Rest Armin , Swift Jonathan J. , Woosley Stan E.
Published: March 2022

Seeing pristine material from the donor star in a type Ia supernova (SN Ia) explosion can reveal the nature of the binary system. In this paper, we present photometric and spectroscopic observations of SN 2020esm, one of the best-studied SNe of the class of “super-Chandrasekhar” SNe Ia (SC SNe Ia), with data obtained −12 to +360 days relative to peak brightness, obtained from a variety of ground- and space-based telescopes. Initially misclassified as a type II supernova, SN 2020esm peaked at M

B
= −19.9 mag, declined slowly (Δm
15(B) = 0.92 mag), and had particularly blue UV and optical colors at early times. Photometrically and spectroscopically, SN 2020esm evolved similarly to other SC SNe Ia, showing the usual low ejecta velocities, weak intermediate-mass elements, and the enhanced fading at late times, but its early spectra are unique. Our first few spectra (corresponding to a phase of ≳10 days before peak) reveal a nearly pure carbon/oxygen atmosphere during the first days after explosion. This composition can only be produced by pristine material, relatively unaffected by nuclear burning. The lack of H and He may further indicate that SN 2020esm is the outcome of the merger of two carbon/oxygen white dwarfs. Modeling its bolometric light curve, we find an 56Ni mass of

1.23

−
0.14

+
0.14

M
☉ and an ejecta mass of

1.75

−
0.20

+
0.32

M
☉, in excess of the Chandrasekhar mass. Finally, we discuss possible progenitor systems and explosion mechanisms of SN 2020esm and, in general, the SC SNe Ia class.
The Effects of Magnetic Fields and Outflow Feedback on the Shape and Evolution of the Density Probability Distribution Function in Turbulent Star-forming Clouds
Authors: Appel Sabrina M. , Burkhart Blakesley , Semenov Vadim A. , Federrath Christoph , Rosen Anna L.
Published: March 2022

Using a suite of 3D hydrodynamical simulations of star-forming molecular clouds, we investigate how the density probability distribution function (PDF) changes when including gravity, turbulence, magnetic fields, and protostellar outflows and heating. We find that the density PDF is not lognormal when outflows and self-gravity are considered. Self-gravity produces a power-law tail at high densities, and the inclusion of stellar feedback from protostellar outflows and heating produces significant time-varying deviations from a lognormal distribution at low densities. The simulation with outflows has an excess of diffuse gas compared to the simulations without outflows, exhibits an increased average sonic Mach number, and maintains a slower star formation rate (SFR) over the entire duration of the run. We study the mass transfer between the diffuse gas in the lognormal peak of the PDF, the collapsing gas in the power-law tail, and the stars. We find that the mass fraction in the power-law tail is constant, such that the stars form out of the power-law gas at the same rate at which the gas from the lognormal part replenishes the power law. We find that turbulence does not provide significant support in the dense gas associated with the power-law tail. When including outflows and magnetic fields in addition to driven turbulence, the rate of mass transfer from the lognormal to the power law, and then to the stars, becomes significantly slower, resulting in slower SFRs and longer depletion times.
3D Exact Analytical Solutions of Two-fluid Plasma, Magnetohydrodynamics, and Neutral Fluid Equations for the Creation of Ordered Structures as well as Jet-like Flows
Authors: Saleem Hamid , Saleem Zain H.
Published: March 2022

The 3D exact analytical solutions of ideal two-fluid plasma, single-fluid plasma, and neutral fluid equations have been found using physically justifiable assumptions. Surprisingly these solutions satisfy all nonlinearities in the systems. It is pointed out that these solutions explain the fundamental mechanism behind the creation of a vast variety of ordered structures in plasmas and fluids. In the limiting case of 2D dependence of fields, the theoretical model for plasma is applied to explain the formation of spicules in the solar chromosphere. It is pointed out that the main contribution of electron (ion) baroclinic vectors is to produce vorticity in the plasma, and that magnetic field generation is coupled with the flow of both electrons and ions.
A Model-independent Radio Telescope Dark Matter Search
Authors: Keller Aya , O’Brien Sean , Kamdar Adyant , Rapidis Nicholas M. , Leder Alexander F. , van Bibber Karl
Published: March 2022

A novel search technique for ultralight dark matter has been developed and carried out over a narrow range in the L band, utilizing the recent Breakthrough Listen public data release of three years of observation with the Green Bank Telescope. The search concept depends only on the assumption of decay or annihilation of virialized dark matter to a quasimonochromatic radio line, and additionally that the frequency and intensity of the line be consistent with most general properties expected of the phase space of our Milky Way halo. Specifically, the search selects for a line that exhibits a Doppler shift with position according to the solar motion through a static Galactic halo and similarly varies in intensity with the position with respect to the Galactic center. Over the frequency range 1.73–1.83 GHz, radiative annihilation of dark matter is excluded above 〈σ
v〉 = 1.2 × 10−47 cm3 s−1 and for decay above λ = 4.1 × 10−35 s−1. The analysis of the full Breakthrough Listen GBT data set by this method (25,000 spectra, 1.1-11.6 GHz) is currently underway.
Simulation of Stark-broadened Hydrogen Balmer-line Shapes for DA White Dwarf Synthetic Spectra
Authors: Cho P. B. , Gomez T. A. , Montgomery M. H. , Dunlap B. H. , Fitz Axen M. , Hobbs B. , Hubeny I. , Winget D. E.
Published: March 2022

White dwarfs (WDs) are useful across a wide range of astrophysical contexts. The appropriate interpretation of their spectra relies on the accuracy of WD atmosphere models. One essential ingredient of atmosphere models is the theory used for the broadening of spectral lines. To date, the models have relied on Vidal et al., known as the unified theory of line broadening (VCS). There have since been advancements in the theory; however, the calculations used in model atmosphere codes have only received minor updates. Meanwhile, advances in instrumentation and data have uncovered indications of inaccuracies: spectroscopic temperatures are roughly 10% higher and spectroscopic masses are roughly 0.1 M
⊙ higher than their photometric counterparts. The evidence suggests that VCS-based treatments of line profiles may be at least partly responsible. Gomez et al. developed a simulation-based line-profile code Xenomorph using an improved theoretical treatment that can be used to inform questions around the discrepancy. However, the code required revisions to sufficiently decrease noise for use in model spectra and to make it computationally tractable and physically realistic. In particular, we investigate three additional physical effects that are not captured in the VCS calculations: ion dynamics, higher-order multipole expansion, and an expanded basis set. We also implement a simulation-based approach to occupation probability. The present study limits the scope to the first three hydrogen Balmer transitions (Hα, Hβ, and Hγ). We find that screening effects and occupation probability have the largest effects on the line shapes and will likely have important consequences in stellar synthetic spectra.
Intermittency in the Expanding Solar Wind: Observations from Parker Solar Probe (0.16 au), Helios 1 (0.3–1 au), and Voyager 1 (1–10 au)
Authors: Cuesta Manuel Enrique , Parashar Tulasi N. , Chhiber Rohit , Matthaeus William H.
Published: March 2022

We examine statistics of magnetic-field vector components to explore how intermittency evolves from near-Sun plasma to radial distances as large as 10 au. Statistics entering the analysis include autocorrelation, magnetic structure functions of the order of n (SF
n
), and scale-dependent kurtosis (SDK), each grouped in ranges of heliocentric distance. The Goddard Space Flight Center Space Physics Data Facility provides magnetic-field measurements for resolutions of 6.8 ms for Parker Solar Probe, 6 s for Helios, and 1.92 s for Voyager 1. We compute SF2 to determine the scales encompassing the inertial range and examine SDK to investigate the degree of non-Gaussianity. Autocorrelations are used to resolve correlation scales. Correlation lengths and ion inertial lengths provide an estimate of effective Reynolds number (Re). Variation in Re allows us to examine for the first time the relationship between SDK and Re in an interplanetary plasma. A conclusion from this observed relationship is that regions with lower Re at a fixed physical scale have on average lower kurtosis, implying less intermittent behavior. Kolmogorov refined similarity hypothesis is applied to magnetic SF
n
and kurtosis to calculate intermittency parameters and fractal scaling in the inertial range. A refined Voyager 1 magnetic-field data set is generated.
The Rotation of Magnetic Flux Ropes Formed during Solar Eruption
Authors: Zhou 周 Zhenjun 振军 , Jiang Chaowei , Liu Rui , Wang Yuming , Liu Lijuan , Cui Jun
Published: March 2022

Eruptions of solar filaments often show rotational motion about their rising direction, but the mechanism governing such rotation, and how the rotation is related to the initial morphology of the preeruptive filament (and cospatial sigmoid), filament chirality, and magnetic helicity, remains elusive. The conventional view of rotation as a result of a magnetic flux rope (MFR) undergoing ideal kink instability still has difficulty explaining these relationships. Here we propose an alternative explanation for the rotation during eruptions by analyzing a magnetohydrodynamic simulation in which magnetic reconnection initiates an eruption from a sheared arcade configuration, and an MFR is formed during eruption via reconnection. The simulation reproduces a reverse-S-shaped MFR with dextral chirality, and the axis of this MFR rotates counterclockwise while rising, which compares favorably with a typical filament eruption observed from dual viewing angles. By calculating the twist and writhe numbers of the modeled MFR during its eruption, we found that, accompanied by the rotation, the nonlocal writhe of the MFR’s axis decreases while the twist of its surrounding field lines increases, and this is distinct from kink instability, which converts magnetic twist into the writhe of the MFR axis.
Research Infrastructure Contact Zones: a framework and dataset to characterise the activities of major biodiversity informatics initiatives
Authors: Smith Vincent , French Lisa , Vincent Sarah , Woodburn Matt , Addink Wouter , Arvanitidis Christos , Bánki Olaf , Casino Ana , Dusoulier Francois , Glöckler Falko , Hobern Donald , Kalfatovic Martin R. , Koureas Dimitrios , Mergen Patricia , Miller Joe , Schulman Leif , Juslén Aino
Published: March 2022

The landscape of biodiversity data infrastructures and organisations is complex and fragmented. Many occupy specialised niches representing narrow segments of the multidimensional biodiversity informatics space, while others operate across a broad front but differ from others by data type(s) handled, their geographic scope and the life cycle phase(s) of the data they support. In an effort to characterise the various dimensions of the biodiversity informatics landscape, we developed a framework and dataset to survey these dimensions for ten organisations (DiSSCo, GBIF, iBOL, Catalogue of Life, iNaturalist, Biodiversity Heritage Library, GeoCASe, LifeWatch, eLTER, ELIXIR), relative to both their current activities and long-term strategic ambitions.

The survey assessed the contact between the infrastructure organisations by capturing the breadth of activities for each infrastructure across five categories (data, standards, software, hardware and policy), for nine types of data (specimens, collection descriptions, opportunistic observations, systematic observations, taxonomies, traits, geological data, molecular data, and literature), and for seven phases of activity (creation, aggregation, access, annotation, interlinkage, analysis, and synthesis). This generated a dataset of 6,300 verified observations, which have been scored and validated by leading members of each infrastructure organisation. The resulting data allows high-level questions about the overall biodiversity informatics landscape to be addressed, including the greatest gaps and contact between organisations.
Microbiome composition of disturbed soils from sandy-gravel mining complexes with different reclamation approach
Authors: Kimeklis Anastasiia , Gladkov Grigory , Tembotov Rustam , Kichko Arina , Pinaev Alexander , Hosid Sergey , Andronov Evgeny , Abakumov Evgeny
Published: March 2022

Activities connected to mineral mining disrupt the soil layer and bring up to surface parent rock material. As a result, they leave behind vast areas of disturbed lands, that are difficult to restore due to altered environmental conditions. Returning these lands to the natural ecosystems is an important contemporary challenge. Soil microbiome composition reflects changes happening to disturbed lands, its analysis helps to evaluate disturbance degree and estimate the effect of implementation of remediation techniques. Also, factors connected to the characteristics of a particular geographical region have a certain impact and should be taken into account. We focus on microbiomes of disturbed lands from two sandy-gravel mining complexes in mountainous areas with moderate continental climate (Central Caucasus, Russia). These quarries share the same parent rock material but differ in benchmark soil type and presence of remediation practices. Comparative analysis of microbiome composition based on sequencing of 16S rRNA gene libraries showed that region and disturbance are the key factors explaining microbiome variation, which surpass the influence of local vegetation factors. However, application of remediation techniques greatly reduces dissimilarity of soil microbiomes caused by disturbance. Linking of soil agrochemical parameters to microbiome composition showed that disturbance factor correlates with a lack of organic carbon. Other agrochemical parameters, like pH, ammonium, nitrates and total carbon explain variation of microbiomes on a smaller scale between sampling sites. Thus, while regional and disturbance factors reflected differentiation of soil microbiomes, soil agrochemical parameters explained local variation of certain groups of microorganisms.
On the occurrence of Lygosoma siamense Siler, Heitz, Davis, Freitas, Aowphol, Termprayoon & Grismer, 2018 (Squamata, Scincidae) in China
Authors: Qi Shuo , Ren Jin-Long , Wang Zeng , Yang Hao-Cong , Jiang Ke
Published: March 2022

The genus Lygosoma Hardwicke & Gray, 1827 is a group of semi-fossorial supple skink from Southeast Asia, the members of which are still understudied in Indochina. Lysosoma quadrupes (Linnaeus, 1766) was once recorded from China based on historical literature; until recent its Indochina specimens were revised and placed into a newly described species, i.e., L. siamense Siler, Heitz, Davis, Freitas, Aowphol, Termprayoon & Grismer, 2018. However, Lygosoma quadrupes had long been unknown from China but the historical record had not been confirmed. Here we report a vouchered record for L. siamense from China for the first time based on four specimens collected in Sanya, Hainan, China. Furthermore, the taxonomic history of Lygosoma from China is also reviewed.
BridgeDb and Wikidata: a powerful combination generating interoperable open research (BridgeDb)
Authors: Willighagen Egon , Kutmon Martina , Martens Marvin , Slenter Denise
Published: March 2022

Like humans have a unique social security number and different phone numbers from various providers, so do proteins and metabolites have a unique structure but different identifiers from various databases. BridgeDb is an interoperability platform that allows combining these databases, by matching database-specific identifiers. These matches are called identifier mappings, and they are indispensable when combining experimental (omics) data with knowledge in reference databases. BridgeDb takes care of this interoperability between gene, protein, metabolite, and other databases, thus enabling seamless integration of many knowledge bases and wet-lab results. Since databases get updated continuously, so should the Open Science BridgeDb project.
Emotional and cognitive changes in chronic kidney disease
Authors: Kim Duk-Soo , Kim Seong-Wook , Gil Hyo-Wook
Published: March 2022

Chronic kidney disease (CKD) leads to cognitive impairment and emotional changes. However, the precise mechanism underlying the crosstalk between the kidneys and the nervous system is not fully understood. Inflammation and cerebrovascular disease can influence the development of depression in CKD. CKD is one of the strongest risk factors for cognitive impairment. Moreover, cognitive impairment occurs in CKD as patients experience the dysregulation of several brain functional domains due to damage caused to multiple cortical regions and to subcortical modulatory neurons. The differences in structural brain changes between CKD and non-CKD dementia may be attributable to the different mechanisms that occur in CKD. The kidney and brain have similar anatomical vascular systems, which may be susceptible to traditional risk factors. Vascular factors are assumed to be involved in the development of cognitive impairment in patients with CKD. Vascular injury induces white matter lesions, silent infarction, and microbleeds. Uremic toxins may also be directly related to cognitive impairment in CKD. Many uremic toxins, such as indoxyl sulfate, are likely to have an impact on the central nervous system. Further studies are required to identify therapeutic targets to prevent changes in the brain in patients with CKD.
Fantaisie livresque
Authors: Rosset Pierre
Published: March 2022

Une nuit d’orage dans une bibliothèque d’un de nos EFTS (Établissement de formation de travailleurs sociaux) déclenche une aventure livresque dans laquelle des livres d’auteurs du passé offrent leurs plus belles pages pour élaborer « le livre des livres » à l’attention des étudiants de notre secteur.
À quoi sert l’expertise usagère ?
Authors: Heijboer Claire
Published: March 2022

Si l’on parle facilement de savoirs usagers , ou de savoirs d’expérience pour décrire les connaissances, capacités et compétences des personnes usagères d’établissements et de services sociaux et médico-sociaux, la notion d’ expertise usagère est plus difficilement employée, voire même souvent décriée. Cependant, cette dernière démontre les opérationnalités de ce savoir que nous entendons dévoiler
Précocité, prématurité du moi. De la qualité des sublimations
Authors: Aisenstein Marilia
Published: March 2022

À partir de la notion de précocité et de la « prématurité du moi » décrite par Michel Fain, l’auteur s’interroge sur les destins et la valeur fonctionnelle de la sublimation en relation avec la précocité/prématurité. Se fondant sur les travaux de Michel Fain, Benno Rosenberg et André Green, elle propose d’examiner la qualité de cette dernière et pose l’hypothèse d’un « négatif de la sublimation ». Résultant d’une désintrication pulsionnelle qui libère la pulsion de mort, ce « négatif de la sublimation » pourrait porter électivement la destructivité engendrée envers l’élément humain. Ceci induirait un pervertissement de certaines sublimations artistiques ou idéologiques qui dès lors iraient à l’encontre de l’idée freudienne, défendue en 1927, d’un Surmoi résultat d’une dialectique entre culturel et intrapsychique. En 1929, Freud décrit un « processus de civilisation » impliquant le sacrifice des satisfactions pulsionnelles au profit « d’une grande communauté humaine ».
L’aiguillon douloureux de la précocité
Authors: Chervet Emmanuelle
Published: March 2022

L’auteur propose un retour sur la notion de masochisme dans l’œuvre freudienne et dans celle des psychosomaticiens. La différenciation entre masochisme érogène primaire et masochisme érotique ouvrant au fantasme par le double retournement pulsionnel permet un repérage transférentiel plus précis. C’est ainsi que prend sens la description des défenses anti-traumatiques actives et de la prématurité du moi, proches de ce qu’on décrit actuellement en termes de précocité. La polarité activité-passivité y disparaît au profit de l’activité. Il s’agit d’une conjoncture qui interdit la régression et l’investissement d’un pôle hallucinatoire par la réexcitation sans fin d’un accrochage aux perceptions nociceptives. La clinique d’un enfant « précoce » illustre la participation parentale à cette prématuration, et quelques modes possibles de son élaboration. L’accès au masochisme moral permet une issue du côté de la douleur morale, et la haine une issue agie qui ouvre cependant à une différenciation et à une séparation.
Le pare-excitation sur le divan de la psychothérapie psychanalytique corporelle
Authors: Ribour Walter
Published: March 2022

Comment le pare-excitation défini par Freud comme ce tégument protecteur régulant le passage des excitations entre le dehors et le dedans trouve-t‑il sur « cet autre divan » de la psychothérapie psychanalytique corporelle un cadre favorisant son renforcement ? Par l’appui sur le perceptif et tout particulièrement par la mise en éveil de la fonction du toucher à distance, le patient au pare-excitation défaillant est porté et contenu par le divan, par « l’objet-analyste » en personne et par le tact de ce dernier, favorisant ainsi le traitement de l’excitation, son évacuation et sa liaison.
Ça se balade… Ça ballotte… Ça pique… Le travail de PPC quand le corps est délirant
Authors: Azoulay Stéphanie
Published: March 2022

Dans le cadre de la cure d’une patiente aux symptômes psychotiques lourds et invalidants, la psychothérapie psychanalytique corporelle facilite l’installation difficile de la relation thérapeutique. La patiente, dont le corps délirant manifeste une excitation qui ne peut être canalisée par un pare-excitations défaillant, n’arrive pas à élaborer ses pensées. Elle accède progressivement à ses souvenirs par l’évocation de ses ressentis corporels. La prise en compte par sa thérapeute du récit délirant de ses sensations corporelles permet d’enrichir le discours de la patiente enfermée dans une plainte peu élaborée. Des rêves apparaissent entre les séances après plusieurs années de thérapies. En partageant ce vécu corporel particulier, des représentations et l’évocation de souvenirs traumatiques lui deviennent possibles, produisant des moments de soulagement et permettant à Joséphine de s’intéresser à son fonctionnement psychique malgré des symptômes psychotiques persistants.