bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hubungan Antara Stress Kerja dan Kualitas Tidur Dengan Subjective Well-Being pada Dosen Uhamka Selama Pandemi Covid-19
Authors: Andriany Anissa Rizky , Pertiwi Mahesti 
Published: November 2021

The Covid-19 pandemic has brought about changes in education that are evident in the process of teaching and learning activities, which were originally carried out in the campus environment turned into distance lectures (PJJ). This study aims to find out whether or not there is a relationship between work stress and sleep quality with subjective well-being in lecturers at UHAMKA. This study involved 85 lecturers who worked at UHAMKA. The research instruments used are the Work Stress Questionnaire, the Pittsburgh Sleep Quality Index,and thewell-being bjectiveSu. The results showed that there was a relationship between work stress and subjective well-being in UHAMKA lecturers during the covid-19 pandemic, a negative relationship. That is, the higher the work stress experienced by lecturers, the lower subjective well-being,and vice versa. Furthermore, there is a relationship between sleep quality and subjective well-being in UHAMKA lecturers, with the direction of positive relationships, showing that the higher the quality of sleep that lecturers have, the higher subjective well-being,and vice versa. The conclusion of this study, there is a relationship between work stress and sleep quality with subjective well-being in UHAMKA lecturers during covid-19. This shows that work stress and sleep quality simultaneously are both associated with subjective well-being in UHAMKA lecturers during covid-19, inother words Ha was accepted and Ho wasrejected
The concept of space in Classic Mayan
Authors: Hamann Agnieszka 
Published: November 2021

The ancient Maya civilization left us a significant corpus of glyphic inscriptions, a large portion of which consists of historical records, meticulously dating events and time elapsed between them – births, accessions and deaths of rulers, wars, ceremonies, visits and family relationships between royal dynasties, etc. (see Martin and Grube 2008). Time being such a prominent topic, the texts contain a number of time-related terms, including (1) event-based expressions (ti ik’ k’in ‘at black day / at dusk / at night’; i pas ‘then at dawn’; si[h]yajiiy ‘(X years) after s/he was born’), (2) conceptualizations which are potentially and likely spatial in nature as they appear both in locative expressions and temporal adverbials (preposition ti ‘in/on/at/with/as; the verb uht ‘to happen’ and deictic verb hul ‘to arrive’; tu paat + date ‘on the back of / after), and finally, (3) non-spatial metaphorical conceptualizations, such as reification and personification of the units of time. Sweetser and Gaby (2017, 626) notice that “crosslinguistically, the single primary historical source for temporal vocabulary is spatial vocabulary” and it is an overwhelming tendency observed in numerous languages around the world. Levinson and Wilkins (2006c, 6) also pose an interesting question how much spatial information is coded in language and how much is inferred from context and our knowledge of the world around us. The concept of space being so basic and significant, surprisingly little has been published on how space was conceptualized in Maya texts of the Classic Period (250-950 CE). Thus, this paper investigates how the domain of space is coded in Classic Mayan, a grapholect recorded in Maya glyphic inscriptions, how the language expresses relationships of containment, contiguity and adjacency, the manner and path of motion events, as well as available frames of reference to locate objects which are separated in space.
Становлення і розвиток гігієнічної просвіти дітей та юнацтва в закладах освіти Галичини наприкінці ХІХ – у 30-х роках ХХ століть
Authors: Білавич Іван 
Published: November 2021

Стаття присвячена гігієнічній просвіті дітей та юнацтва в Галичині наприкінці ХІХ – у 30-х рр. ХХ ст. Крізь призму історичного досвіду висвітлено діяльність інституцій медичного спрямування (Українське гігієнічне товариство, Українське лікарське товариство (УЛТ), «Медична громада», «Народна лічниця»), освітніх, культурно-просвітницьких, жіночих, господарсько-економічних, дитячих і юнацьких, студентських, благодійницьких, інших громадських організацій (Українське педагогічне товариство (УПТ) «Рідна школа», «Просвіта», Союз українок, «Сільський господар», «Академічна громада», Товариство імені Петра Могили та ін.) на ниві гігієнічного просвітництва. Проаналізовано ефективні форми, продуктивні засоби масового медичного просвітництва дітей та дорослих у Галичині, що істотно вплинуло на здоров’язбереження людей. На прикладі Українського гігієнічного товариства (1929–1939) висвітлено те, як українські громадські активісти, серед яких лікарі-«суспільники» (О. Козакевич, С. Магаляс, М. Музика, Р. Осінчук, М. Панчишин, С. Парфанович та ін.), студенти-медики, за тісної співпраці з УЛТ, УПТ «Рідна школа», Союзом українок, іншими діячами поширювали санітарно-гігієнічні знання через улаштування гігієнічних курсів, тематичних лекцій, сприяли профілактиці інфекційних захворювань, зокрема туберкульозу, вели протитуберкульозні курси, здійснювали профілактичні огляди тощо. Закцентовано увагу на курсовій підготовці медичних волонтерів, дівчат-«гігієністок», наголошено на гігієнічній освіті учнів УПТ «Рідна школа», де викладали «Основи гігієни», проводили активну виховну роботу зі школярами в цьому напрямі. Проаналізовано роль українських громадських періодичних видань у поширенні гігієнічних знань дітей та юнацтва. Окреслено шляхи використання продуктивного історичного досвіду діяльності українських громадських товариств у галузі гігієнічного просвітництва дітей та юнацтва в Галичині досліджуваного періоду за сучасних умов поширення пандемії коронавірусу.
Corrosion Rate of Stainless Steel 304 in HNO3 Solution
Authors: Wibowo Sutarjo Hendrikus Dwijayanto 
Published: November 2021

This literature review was aims to describe corrosion rate stainless steel 304 in sulfuric acid. Immerse process do in 700C temperature for 6 hours and than in 29oC temperature for 18 hours every day. This condition aim to get closer to the actual use in the manufacture of tubes of reactor SAMOP (sub critical assembly for Mo99Prad action). Specimen after TIG welding and electric arc welding cleaned from crust and than measured, drawing, balanced, and record the first weight. The survey findings show heavy shrinkage sample, it is well visible on the corrosion pH 0.5 in electric arc welding of 0.105 gram/dm2/month for corrosion 0.026 gram/dm2/month without welding and pH 0.2, arc welding of 0.045 gram/dm2/month, pH 0.2 no Las 0.02 gram/dm2/month. Specimen that has been welded have significant differences in corrosion rate compare to specimen that have not weld.
Potential Combination of Xanthone Compounds from Mangosteen Fruit (Garcinia mangostana) with Eugenol Compounds in Basic Leaf (Ocimum sanctum) as Alternative Therapy in Preeclampsia
Authors: Sutrisno Muhammad Al Farisi 
Published: November 2021

Preeclampsia is a hyperdynamic condition that is syndromed by hypertension and proteinuria after 20 weeks of pregnancy. Preeclampsia incident is the first cause of 6-8 % number morbidity/mortality maternity and fetus in the world. Preeclampsia is related to the disability of physiology adaptation that can decrease perfusion of uteroplacental. Xanthone derivatives in mangosteen have been reported to possess a wide range of biological properties, including antioxidant and antihypertensive activities. Eugenol is a primary component of basil oil. It is known for its antioxidant, antiinflammatory, and vasorelaxant actions. These beneficial effects of eugenol make it an excellent therapeutic candidate for the treatment of hypertensive disorders of pregnancy. This study wants to analyze the best available research evidence on the potential combination of xanthone compounds from mangosteen fruit (Garcinia mangostana) with eugenol compounds in basil leaf (Ocimum sanctum) as an alternative therapy in preeclampsia. A literature review was conducted in the electronic databases PubMed and Google Scholar using the index terms "xanthone" and "eugenol" and "hypertension" and "preeclampsia." All types of studies were included for this study, such as randomized controlled trials, systematic reviews, literature reviews, and pilot studies published between 2010 and 2021. Articles which not written in English were excluded from the study. This search resulted in 10 papers. Antioxidant properties of mangosteen peel extract compounds derived from xanthone, the most significant component is α-mangosteen and γ-mangosteen. Eugenol is vasorelaxant action by increasing the expression of its target genes, Sarco/endoplasmic reticulum Ca²⁺-ATPase and adequate potassium-calcium-activated potassium channels channel, thereby relaxing vascular smooth muscle cells and decreasing blood pressure. With this review, we suggest that eugenol, which is a vasorelaxant combined with xanthone which is an antioxidant by obstructing free radical and oxidative stress, can be a potent therapeutic for preeclampsia and intend to motivate researchers (e.g., chemistry, biology, pharmaceutical, and therapeutic areas) to provide evidence of these compounds for the management of preeclampsia.
A Maternal Postpartum Depression Consequences towards Mother-child interaction Outcomes: A systematic review
Authors: Hanif Muhammad Bardan 
Published: November 2021

Postpartum depression is a psychiatric disorder that starts from the second to the sixth week after birth. Postpartum depression has been shown to have an association with infant growth, nutrition, bonding, temperament and ultimately childhood mental wellbeing. This paper reviews overall outcomes of untreated maternal postpartum depression towards the mother-child interactions consequences. Systematic review was conducted in the online databases Google Scholar and PubMed using the index terms “postpartum depression” and “maternal outcomes” or “children outcomes”. Total of 10 studies (out of 112 references retrieved from bibliographic databases) were included in this systematic review. The results of the studies were synthetized into mother–child interactions, including bonding, breastfeeding, and the maternal role. The results suggest that postpartum depression creates an environment that is not conducive to the mother-child interaction thus regressing personal development of mothers or the optimal development of a child. It therefore seems important to detect and treat depression during the postnatal period as early as possible to avoid harmful consequences.
EĞİTİMDE ETKİLEŞİMLİ TAHTALARIN KULLANIMI HAKKINDA ÖĞRETMEN GÖRÜŞLERİ
Authors: ÖZAY KÖSE Esra , KESKİN Bülent 
Published: November 2021

Etkileşimli tahta kullanımı; eğitim ve öğretimde konuları daha iyi anlamak ve kavramak, öğrencilerin dikkatini çekerek öğrenme isteklerini teşvik etme, öğretmeni destekleyici ve öğretimin daha nitelikli olması açısından büyük önem taşımaktadır. Bu anlamda FATİH projesi kapsamında sınıflara yerleştirilen etkileşimli tahtaların, ders işleyişini olumlu etkileyerek farklı kazanımlar ortaya koyduğu ve öğrenmeyi olumlu etkilediği aşikârdır. Bunun yanında etkileşimli
tahtanın eğitim ortamında kullanımı sırasında ortaya çıkabilecek çeşitli durumların bilinmesinin ve önlemlerin alınmasının etkili bir kullanım için önemli olduğu düşünülmektedir. Araştırmada, ortaöğretim kurumlarında görev yapan öğretmenlerin etkileşimli tahta kullanımı esnasındaki tecrübelerinin belirlenmesi amacıyla, nitel araştırma deseni kullanılmıştır. Yarı yapılandırılmış görüşme tekniği ile 32 öğretmene etkileşimli tahtaları kullanırken karşılaştıkları durumlar sorulmuştur. Yapılan analizler sonucunda etkileşimli tahta kullanımının etkinliğinin artırılması kapsamında öğretmenlerin etkileşimli tahtaları kullanırken karşılaştıkları durumlar 8 tema altında toplanmıştır. Yazılımsal durumlar, e-içerik durumları ve ders işleme sürecinde karşılaşılan durumlar öğretmenlerin yüz yüze geldiği durumların en başında gelmektedir. Öğretmenlerin en sık karşılaştıkları durumlardan olan görüntü bozukluklarının veya güneş ışığının yeterince engellenememesinin etkileşimli tahtanın görülmesini olumsuz etkilemesi, sınıf ortamına yönelik ekranı net görememe, tahtanın konumu, aydınlatma gibi çevresel durumların giderilmesi en öncelikli yapılması gerekenlerdendir
A Revised Description of the Cosmic Ray Induced Desorption of Interstellar Ices
Authors: Sipilä Olli , Silsbee Kedron , Caselli Paola 
Published: November 2021

Abstract
Nonthermal desorption of ices on interstellar grains is required to explain observations of molecules that are not synthesized efficiently in the gas phase in cold dense clouds. Perhaps the most important nonthermal desorption mechanism is one induced by cosmic rays (CRs), which, when passing through a grain, heat it transiently to a high temperature—the grain cools back to its original equilibrium temperature via the (partial) sublimation of the ice. Current cosmic ray induced desorption (CRD) models assume a fixed grain cooling time. In this work, we present a revised description of CRD in which the desorption efficiency depends dynamically on the ice content. We apply the revised desorption scheme to two-phase and three-phase chemical models in physical conditions corresponding to starless and prestellar cores, and to molecular cloud envelopes. We find that, inside starless and prestellar cores, introducing dynamic CRD can decrease gas-phase abundances by up to an order of magnitude in two-phase chemical models. In three-phase chemical models, our model produces results very similar to those of the static cooling scheme—when only one monolayer of ice is considered active. Ice abundances are generally insensitive to variations in the grain cooling time. Further improved CRD models need to take into account additional effects in the transient heating of the grains—introduced, for example, by the adoption of a spectrum of CR energies.
Two Contact Binaries with Mass Ratios Close to the Minimum Mass Ratio
Authors: Li Kai , Xia Qi-Qi , Kim Chun-Hwey , Hu Shao-Ming , Guo Di-Fu , Jeong Min-Ji , Chen Xu , Gao Dong-Yang 
Published: November 2021

Abstract
The cutoff mass ratio is under debate for contact binaries. In this paper, we present the investigation of two contact binaries with mass ratios close to the low mass ratio limit. It is found that the mass ratios of VSX J082700.8+462850 (hereafter J082700) and 1SWASP J132829.37+555246.1 (hereafter J132829) are both less than 0.1 (q ∼ 0.055 for J082700 and q ∼ 0.089 for J132829). J082700 is a shallow contact binary with a contact degree of ∼19%, and J132829 is a deep contact system with a fill-out factor of ∼70%. The O − C diagram analysis indicated that the two systems manifested long-term period decreases. In addition, J082700 exhibits a cyclic modulation which is more likely resulting from the Applegate mechanism. In order to explore the properties of extremely low mass ratio contact binaries (ELMRCBs), we carried out a statistical analysis on contact binaries with mass ratios of q ≲ 0.1 and discovered that the values of J
spin/J
orb of three systems are greater than 1/3. Two possible explanations can interpret this phenomenon. One explanation is that some physical processes, unknown to date, are not considered when Hut presented the dynamic stability criterion. The other explanation is that the dimensionless gyration radius (k) should be smaller than the value we used (k
2 = 0.06). We also found that the formation of ELMRCBs possibly has two channels. The study of evolutionary states of ELMRCBs reveals that their evolutionary states are similar with those of normal W UMa contact binaries.
Probing Current Sheet Instabilities from Flare Ribbon Dynamics
Authors: French Ryan J. , Matthews Sarah A. , Jonathan Rae I. , Smith Andrew W. 
Published: November 2021

Abstract
The presence of current sheet instabilities, such as the tearing mode instability, are needed to account for the observed rate of energy release in solar flares. Insights into these current sheet dynamics can be revealed by the behavior of flare ribbon substructure, as magnetic reconnection accelerates particles down newly reconnected field lines into the chromosphere to mark the flare footpoints. Behavior in the ribbons can therefore be used to probe processes occurring in the current sheet. In this study, we use high-cadence (1.7 s) IRIS Slit Jaw Imager observations to probe for the growth and evolution of key spatial scales along the flare ribbons—resulting from dynamics across the current sheet of a small solar flare on 2016 December 6. Combining analyses of spatial scale growth with Si iv nonthermal velocities, we piece together a timeline of flare onset for this confined event, and provide evidence of the tearing mode instability triggering a cascade and inverse cascade toward a power spectrum consistent with plasma turbulence.
Extensive Lensing Survey of Optical and Near-infrared Dark Objects (El Sonido): HST H-faint Galaxies behind 101 Lensing Clusters
Authors: Sun Fengwu , Egami Eiichi , Pérez-González Pablo G. , Smail Ian , Caputi Karina I. , Bauer Franz E. , Rawle Timothy D. , Fujimoto Seiji , Kohno Kotaro , Dudzevičiūtė Ugnė , Atek Hakim , Bianconi Matteo , Chapman Scott C. , Combes Francoise , Jauzac Mathilde , Jolly Jean-Baptiste , Koekemoer Anton M. , Magdis Georgios E. , Rodighiero Giulia , Rujopakarn Wiphu , Schaerer Daniel , Steinhardt Charles L. , Van der Werf Paul , Walth Gregory L. , Weaver John R. 
Published: November 2021

Abstract
We present a Spitzer/IRAC survey of H-faint (H
160 ≳ 26.4, < 5σ) sources in 101 lensing cluster fields. Across a CANDELS/Wide-like survey area of ∼648 arcmin2 (effectively ∼221 arcmin2 in the source plane), we have securely discovered 53 sources in the IRAC Channel-2 band (CH2, 4.5 μm; median CH2 = 22.46 ± 0.11 AB mag) that lack robust HST/WFC3-IR F160W counterparts. The most remarkable source in our sample, namely ES-009 in the field of Abell 2813, is the brightest H-faint galaxy at 4.5 μm known so far (CH2 = 20.48 ± 0.03 AB mag). We show that the H-faint sources in our sample are massive (median M
star = 1010.3±0.3
M
⊙), star-forming (median star formation rate

=

100

−
40

+
60

M
⊙ yr−1), and dust-obscured (A

V
= 2.6 ± 0.3) galaxies around a median photometric redshift of z = 3.9 ± 0.4. The stellar continua of 14 H-faint galaxies can be resolved in the CH2 band, suggesting a median circularized effective radius (R
e,circ; lensing corrected) of 1.9 ± 0.2 kpc and <1.5 kpc for the resolved and whole samples, respectively. This is consistent with the sizes of massive unobscured galaxies at z ∼ 4, indicating that H-faint galaxies represent the dusty tail of the distribution of a wider galaxy population. Comparing with the ALMA dust continuum sizes of similar galaxies reported previously, we conclude that the heavy dust obscuration in H-faint galaxies is related to the compactness of both stellar and dust continua (R
e,circ ∼ 1 kpc). These H-faint galaxies make up

16

−
7

+
13

% of the galaxies in the stellar-mass range of 1010 − 1011.2
M
⊙ at z = 3 ∼ 5, contributing to

8

−
4

+
8

% of the cosmic star formation rate density in this epoch and likely tracing the early phase of massive galaxy formation.
Overdense Threads in the Solar Corona Induced by Torsional Alfvén Waves
Authors: Díaz-Suárez Sergio , Soler Roberto 
Published: November 2021

Abstract
High-resolution and high-cadence observations have shown that Alfvén waves are ubiquitous in the solar atmosphere. Theoretical works suggest their ability to transfer large energy fluxes from the photosphere to the corona and solar wind. In this proof-of-concept Letter we show that torsional Alfvén waves can induce the formation of filamentary plasma structures in the solar corona. We perform high-resolution 3D ideal MHD simulations in an initially uniform coronal plasma permeated by a line-tied twisted magnetic field. We find that torsional Alfvén waves develop Kelvin–Helmholtz instabilities as a result of the phase mixing process. The Kelvin–Helmholtz instability drives plasma compression that breaks the uniformity of density, creating elongated overdense threads aligned with the direction of the magnetic field. With synthetic modeling of SDO/AIA imaging we show that the overdense filaments could be seen in observations as fine strands that illuminate the underlying magnetic structure.
Morphometric Study of Craters on Saturn’s Moon Rhea
Authors: Aponte-Hernández Betzaida , Rivera-Valentín Edgard G. , Kirchoff Michelle R. , Schenk Paul M. 
Published: November 2021

Abstract
Morphometric studies of impact craters on icy moons can be used to understand modification of crater topography. Several processes (e.g., viscous relaxation, ejecta deposition, repeated and overlapping impacts) act to shallow crater depth and relax the crater wall slope to similar or varying extents. Resolving these processes can help constrain the interior structure and surface properties of icy moons. Here, using morphometric measurements of craters on Rhea, we aim to constrain the processes that led to the observed crater population. We measured crater diameter, depth, and wall slope, as well as overall crater morphology (e.g., simple versus complex craters). Our results indicate that there exists a linear correlation between impact crater depth-to-diameter ratio and crater wall slope. This may suggest that the dominant modification process on Rhea is one that affects both properties simultaneously, which supports past heating events as the primary post-impact modification process. Additionally, the simple-to-complex crater transition for Rhea was found to be 12 ± 2 km, which is consistent with reported transition diameters for comparably sized icy bodies, indicating similar surface properties. A transition to shallower crater depths for large complex craters was not documented, indicating the absence of a rheological transition at depth in Rhea’s icy lithosphere, which may support the interpretation that Rhea is not fully differentiated.
Pteridophyte distribution of the Urals and adjacent areas: a dataset
Authors: Melnikov Denis , Tretyakova Alyona , Grudanov Nickolay , Baranova Olga , Senator Stepan , Muldashev Albert , Podgaevskaya Elena , Zolotareva Natalya , Erokhin Nickolay , Vorobiev Alex , Knyazev Mikhail , Glazunov Valerii , Kapitonova Olga , Allayarova Venera , Naumenko Nikolay , Efimik Elena , Malykh Sergey , Merker Vera , Morozyuk Yulia , Burundukova Daria , Shubin Dmitriy , Shilov Denis 
Published: November 2021

Data on the species diversity and distribution of pteridophytes (lycophytes and ferns) in the Urals and adjacent areas are presented. The dataset includes 13,742 observations of two classes Lycopodiopsida and Polypodiopsida. In total, the dataset contains information on 16 families, 28 generas, 65 species, four subspecies and nine interspecies hybrids. All records are for lycophytes and ferns collected over 170 years between 1853 and 2021. The dataset presented is based on herbarium specimens, published data and field research conducted by the authors. This dataset is the first and important step towards generalising information on the current diversity and geographical distribution of pteridophytes in the Urals and adjacent areas.
The dataset contains 13,742 records of 65 species of pteridophytes occurrences in the Urals and adjacent territories: Udmurt Republic (42,100 km2); Perm Krai (160,600 km2); Sverdlovsk Oblast (194,800 km2); Chelyabinsk Oblast (87,900 km2); Republic of Bashkortostan (143,600 km2); Tyumen Oblast (160,100 km2); Yamalo-Nenets Autonomous Okrug (769,300 km2); Khanty-Mansi Autonomous Okrug (534,800km2) and Kurgan Oblast (71,500 km2). Each record includes a geographical description of the place of discovery and habitat, year of discovery, author of the finding and determination, as well as a link to a literary source (if the data were published) or the place of storage of the herbarium specimen. The presented dataset supplements the information on the occurrence of pteridophytes in the Russian Federation as a whole and clarifies their distribution in the Urals.