cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modification of the aging dynamics of glassy polymers due to a temperature step
Creators: name: Warren, Mya
name: Rottler, Joerg
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Molecular dynamics simulations are used to investigate the connection between thermal history and physical aging in polymer glasses, in particular the effects of a temperature square step. Measurements of two-time correlation functions show that a negative temperature step causes "rejuvenation" of the sample: the entire spectrum of relaxation times appears identical to a younger specimen that did not experience a temperature step. A positive temperature step, however, leads to significant changes in the relaxation times. At short times, the dynamics are accelerated (rejuvenation), whereas at long times the dynamics are slowed (over-aging). All findings are in excellent qualitative agreement with recent experiments. The two regimes can be explained by the competing contributions of dynamical heterogeneities and faster aging dynamics at higher temperatures. As a result of this competition, the transition between rejuvenation and over-aging depends on the length of the square step, with shorter steps causing more rejuvenation and longer steps causing more over-aging. Although the spectrum of relaxation times is greatly modified by a temperature step, the van Hove functions, which measure the distribution of particle displacements, exhibit complete superposition at times when the mean-squared displacements are equal.
description: 13 pages, 8 figures
The morphology and cytology of Audouinella sp. (Rhodophyta, Acrochaetiaceae)
Creators: name: Hymes, Beverly Joy
Publisher: name: University of British Columbia
Year: 2010

description: Audouinella sp. (Rhodophyta, Acrochaetiaceae) was collected seasonally between May 1978 and April 1980 from the North Alouette River, British Columbia and occasionally from other regions in British Columbia, Washington and Oregon states. The plants were attached to rocks, moss, or the freshwater red alga, Lemanea. In general, macroscopic specimens were collected in the winter and spring and germlings in the summer and fall. Audouinella is a uniseriate branched filament with erect and basal systems. The basal system persists most of the year. Each cell contains one parietal chloroplast which varies from spiral to irregularly band shaped; pyrenoids are absent. Large lipid bodies of unknown function are common in most cells of field and cultured material and tend to aggregate near the pit plugs. Hair cells and monosporangia are commonly found on the tips of short branches. Regeneration of the monosporangia, hair cells and filaments is common. Sexual reproduction was not observed. Growth and elongation, observed with the aid of calcofluor white ST, is limited to the apical cells of the main axes, branches and branchlets. Morphological plasticity is evident in the varying cell sizes obtained from field and cultured material at different light intensities. Four chromosomes represent the haploid condition; there are two larger (ca. 0.4 μm) and two smaller (ca. 0.3 μm) chromosomes. Audouinella sp. has typical red algal ultrastructural features. Unicellular hairs are described ultrastructurally in the red algae for the first time. They contain a prominent nucleus, several mitochondria, endoplasmic reticulum, golgi bodies and many vesicles. Chloroplasts or proplastid type of organelles are absent. Audouinella sp. was compared to 24 descriptions of other freshwater members of the Acrochaetiaceae and it was concluded that at present it is not possible to provide a species name for the plant observed in this study. The generic name Audouinella was chosen in agreement with current taxonomic studies.
A systematic reclassification of type IIn supernovae
Creators: name: Ransome, C. L.
name: Habergham-Mawson, S. M.
name: Darnley, M. J.
name: James, P. A.
name: Filippenko, A. V.
name: Schlegel, E. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Type IIn supernovae (SNe IIn) are a relatively infrequently observed subclass of SNe whose photometric and spectroscopic properties are varied. A common thread among SNe IIn are the complex multiple-component hydrogen Balmer lines. Owing to the heterogeneity of SNe IIn, online databases contain some outdated, erroneous, or even contradictory classifications. SN IIn classification is further complicated by SN impostors and contamination from underlying HII regions. We have compiled a catalogue of systematically classified nearby (redshift z < 0.02) SNe IIn using the Open Supernova Catalogue (OSC). We present spectral classifications for 115 objects previously classified as SNe IIn. Our classification is based upon results obtained by fitting multiple Gaussians to the H-alpha profiles. We compare classifications reported by the OSC and Transient Name Server (TNS) along with the best matched templates from SNID. We find that 28 objects have been misclassified as SNe IIn. TNS and OSC can be unreliable; they disagree on the classifications of 51 of the objects and contain a number of erroneous classifications. Furthermore, OSC and TNS hold misclassifications for 34 and twelve (respectively) of the transients we classify as SNe IIn. In total, we classify 87 SNe IIn. We highlight the importance of ensuring that online databases remain up to date when new or even contemporaneous data become available. Our work shows the great range of spectral properties and features that SNe IIn exhibit, which may be linked to multiple progenitor channels and environment diversity. We set out a classification sche me for SNe IIn based on the H-alpha profile which is not greatly affected by the inhomogeneity of SNe IIn.
description: 22 pages, 15 figures, accepted by MNRAS
Будущие профессии Астраханской области
Creators: name: Афанасьева Надежда Борисовна
name: Собко Мария Евгеньевна
name: Дубина Ольга Александровна
Publisher: name: Вестник науки и образования
Year: 2019
Subjects: ПРОФЕССИЯ
СПЕЦИАЛЬНОСТЬ
РАБОТА
ДЕЯТЕЛЬНОСТЬ
PROFESSION
SPECIALTY
WORK
ACTIVITY

description: В статье затрагивается одна из важнейших проблем учеников старших классов проблема выбора профессии. Как выбрать профессию так, чтобы она была интересна и привлекательна; соответствовала способностям и пользоваться спросом на рынке труда? Авторы изучили Атлас новых профессий, который был разработан Московской школой управления «СКОЛКОВО» и Агентством стратегических инициатив для того, чтобы определить наиболее перспективные направления в сфере развития профессий в Астраханской области. Данную статью можно использовать на занятиях по профориентации, с целью помочь выпускникам сделать правильный выбор будущей профессии.
Факторы риска здоровью медицинского персонала при работе с магнитно-резонансными томографами
Creators: name: Вдовина Ольга Олеговна
name: Иванов Сергей Владимирович
name: Руденко Дана Александровна
Publisher: name: Вестник науки и образования
Year: 2019
Subjects: МАГНИТНО-РЕЗОНАНСНАЯ ТОМОГРАФИЯ
ВРЕДНОСТЬ
ЭЛЕКТРОМАГНИТНОЕ ИЗЛУЧЕНИЕ
ПОСТОЯННОЕ МАГНИТНОЕ ПОЛЕ
MAGNETIC RESONANCE IMAGING
HARMFULNESS
ELECTROMAGNETIC RADIATION
CONSTANT MAGNETIC FIELD

description: Гигиеническая оценка условий труда персонала при работе с МРТ (постоянное магнитное поле, электромагнитные поля, шум, микроклимат, освещение, тяжесть и интенсивность работы) с выявлением приоритетных факторов риска рабочей среды. Изучение состояния здоровья медицинского персонала на основе методов функциональной диагностики. Оценка рисков для здоровья медицинского персонала отделений МРТ. Оценка воздействия вредных производственных факторов на медицинский персонал отделений МРТ.
Zoila fodinata Darragh 2011, sp. nov.
Creators: name: Darragh, Thomas A.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Littorinimorpha
Cypraeidae
Zoila
Zoila fodinata

description: Zoila fodinata sp. nov.
Figures 16K–L, N
Description. Shell solid, polished, of average size for the genus, globose, pyriform, ventral surface rounded. Spire slightly protruding beyond last whorl, covered with thick callus. Posterior canal short, notched, sides thickened. Anterior canal very short, abruptly truncated, deeply incised. Aperture sinuous, widened above fossula; outer lip with 25–28 well-developed teeth, extending along entire lip; inner lip with 21– 25 well-developed teeth, extending along entire lip. Fossula well developed, subrectangular, concave, bounded on inner side by low ridge and anteriorly by sharp terminal ridge; terminal ridge rather broad, extending down into aperture as sharp ridge forming anterior edge of fossula.
Dimensions.
Type locality. Quarry 2.5 km north of Hampton microwave repeater tower, Roe Plains, Western Australia. AMG Eucla l:250,000 sheet CK365465. Roe Calcarenite.
Type material. Holotype, WAM89.637, collected G.W. Kendrick, 27–30 October 1988.
Time range. Pliocene
Occurrence and material. Roe Calcarenite: PL3166 2.5 km north of Hampton Tower (one specimen).
Remarks. This species is most closely similar to the living species Zoila venusta, from which it differs by having stronger teeth and teeth present along the entire columella. The fossula is also shallower but deeper within the aperture than in Z. venusta. It is not as globose, being more pyriform. It does not seem to be closely similar to the fossil species of Zoila known from the Oligocene and Miocene of southeast Australia.
Etymology. Latin, fodina, a quarry.
description: Published as part of Darragh, Thomas A., 2011, A revision of the Australian fossil species of Zoila (Gastropoda: Cypraeidae), pp. 1-28 in Memoirs of Museum Victoria 68 on page 26, DOI: 10.24199/j.mmv.2011.68.01, http://zenodo.org/record/10665999
Two new Longhorn beetles (Coleoptera, Cerambycidae) from Turkey
Creators: name: M.L. Danilevsky
name: K. Hodek
Publisher: name: Гуманитарное пространство
Year: 2021
Subjects: Coleoptera
Cerambycidae
taxonomy
new species
new subspecies
Phytoecia
Cortodera
Iran
Turkey

description: Cortodera colchica serowensis ssp. n. is described from Serow environs in Iranian West Azerbaijan province. Only one subspecies of Cortodera colchica Reitter, 1890 was known from Iran before C. c. danczenkoi Danilevsky, 1985; the distinguishing characters are described. Phytoecia (s. str.) martinae sp. n. close to sympatric Ph. (s. str.) bodemeyeri Reitter, 1913 is described from same locality as previous taxon; the distinguishing characters are described.
Statistical Mechanics of Time Independent Non-Dissipative Nonequilibrium States
Creators: name: Williams, Stephen R.
name: Evans, Denis J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examine the question of whether the formal expressions of equilibrium statistical mechanics can be applied to time independent non-dissipative systems that are not in true thermodynamic equilibrium and are nonergodic. By assuming the phase space may be divided into time independent, locally ergodic domains, we argue that within such domains the relative probabilities of microstates are given by the standard Boltzmann weights. In contrast to previous energy landscape treatments, that have been developed specifically for the glass transition, we do not impose an a priori knowledge of the inter-domain population distribution. Assuming that these domains are robust with respect to small changes in thermodynamic state variables we derive a variety of fluctuation formulae for these systems. We verify our theoretical results using molecular dynamics simulations on a model glass forming system. Non-equilibrium Transient Fluctuation Relations are derived for the fluctuations resulting from a sudden finite change to the system's temperature or pressure and these are shown to be consistent with the simulation results. The necessary and sufficient conditions for these relations to be valid are that the domains are internally populated by Boltzmann statistics and that the domains are robust. The Transient Fluctuation Relations thus provide an independent quantitative justification for the assumptions used in our statistical mechanical treatment of these systems.
description: 17 pages, 4 figures, minor amendments
Metal Cooling in Simulations of Cosmic Structure Formation
Creators: name: Smith, Britton D.
name: Sigurdsson, Steinn
name: Abel, Tom
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The addition of metals to any gas can significantly alter its evolution by increasing the rate of radiative cooling. In star-forming environments, enhanced cooling can potentially lead to fragmentation and the formation of low-mass stars, where metal-free gas-clouds have been shown not to fragment. Adding metal cooling to numerical simulations has traditionally required a choice between speed and accuracy. We introduce a method that uses the sophisticated chemical network of the photoionization software, Cloudy, to include radiative cooling from a complete set of metals up to atomic number 30 (Zn) that can be used with large-scale three-dimensional hydrodynamic simulations. Our method is valid over an extremely large temperature range (10 K < T < 10^8 K), up to hydrogen number densities of 10^12 cm^-3. At this density, a sphere of 1 Msun has a radius of roughly 40 AU. We implement our method in the adaptive mesh refinement (AMR) hydrodynamic/N-body code, Enzo. Using cooling rates generated with this method, we study the physical conditions that led to the transition from Population III to Population II star formation. While C, O, Fe, and Si have been previously shown to make the strongest contribution to the cooling in low-metallicity gas, we find that up to 40% of the metal cooling comes from fine-structure emission by S, when solar abundance patterns are present. At metallicities, Z > 10^-4 Zsun, regions of density and temperature exist where gas is both thermally unstable and has a cooling time less than its dynamical time. We identify these doubly unstable regions as the most inducive to fragmentation. At high redshifts, the CMB inhibits efficient cooling at low temperatures and, thus, reduces the size of the doubly unstable regions, making fragmentation more difficult.
description: 19 pages, 12 figures, significant revision, including new figures
Using radioactivities to improve the search for nearby radio-quiet neutron stars
Creators: name: Hohle, Markus M.
name: Neuhaeuser, Ralph
name: Tetzlaff, Nina
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neutron stars (NS) and black holes (BH) are sources of gravitational waves (GW) and the investigation of young isolated radio-quiet NS can in principle lead to constraints of the equation of state (EoS). The GW signal of merging NSs critically depends on the EoS. However, unlike radio pulsars young isolated radio-quiet neutron stars are hard to detect and only seven of them are known so far. Furthermore, for GW projects it is necessary to confine regions in the sky where and of which quantity sources of GW can be expected. We suggest strategies for the search for young isolated radio-quiet NSs. One of the strategies is to look for radioactivities which are formed during a supernova (SN) event and are detectable due to their decay. Radioactivities with half lives of ~1 Myr can indicate such an event while other remnants like nebulae only remain observable for a few kyrs. Here we give a brief overview of our strategies and discuss advantages and disadvantages
description: 6 pages, 4 figures
Stellar Rotation in Field and Cluster B-Stars
Creators: name: Huang, Wenjin
name: Gies, Douglas R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a spectroscopic investigation of 108 nearby field B-stars. We derive their key stellar parameters, $V \sin i$, $T_{\rm eff}$, $\log g$, and $\log g_{\rm polar}$, using the same methods that we used in our previous cluster B-star survey. By comparing the results of the field and the cluster samples, we find that the main reason for the overall slower rotation of the field sample is that it contains a larger fraction of older stars than found in the (mainly young) cluster sample.
description: 20 pages, 5 figures, accepted for publication in ApJ
An epsilon-near-zero-based Dallenbach absorber
Creators: name: Medvedev, Viacheslav V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report a theoretical analysis of total absorption conditions in a structure consisting of a lossy coating layer on top of a specular metal substrate, which is known as a Dallenbach absorber. All possible combinations of complex refractive indices of the coating material and thicknesses of the coating layer providing complete absorption are described for the case of normal incidence of a plane wave. The work of coatings based on epsilon-near-zero (ENZ) materials is analyzed in detail. Simple analytical relations are obtained for the conditions of total absorption. It is shown that the range of angles where strong absorption occurs is limited by the phenomenon of total external reflection. The characteristics of coatings based on indium-tin oxide, which is an example of an ENZ material, are analyzed.
Theoretical study on favored alpha-decay half-lives of deformed nuclei
Creators: name: Hassanzad, M.
name: Ghodsi, O. N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A systematic study on $α$-decay half-lives for the nuclei in the range $93\leq Z \leq 118$ is done by employing various versions of proximity potentials. To obtain the more reliable results, the deformation terms are included up to hexadecapole ($β_{4}$) in the spherical-deformed nuclear and Coulomb interaction potentials. The favored $α$-decays process in this region are categorized as the even-even, odd A, and odd-odd nuclei, first, and second they are grouped into two parts as a ground state to ground state and ground state to isomeric states transition. Due to their root-mean-square deviations (RMSD's) comparison, $Bass 77$ and $Ngo 80$ have the least values and better compromise in reproducing experimental data. Besides, by considering preformation probability within the cluster formation model, the results validate that the significant reduction in root-mean-square deviations has been obtained for different versions of proximity; Hence detract the deviation between calculated and experimental data.
description: Chin. Phys. C, accepted sep (2021) 13 pages, 3 figures
A description based on Schubert classes of cohomology of flag manifolds
Creators: name: Nakagawa, Masaki
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 57T15, 14M15

description: We describe the integral cohomology rings of the flag manifolds of types B_n, D_n, G_2 and F_4 in terms of their Schubert classes. The main tool is the divided difference operators of Bernstein-Gelfand-Gelfand and Demazure. As an application, we compute the Chow rings of the corresponding complex algebraic groups, recovering thereby the results of R. Marlin.
description: 25 pages, AMS-LaTeX; typos corrected, an error concerning the Schubert classes corrected, Remarks 4.4 and 4.8 added
Low accretion rates at the AGN cosmic downsizing epoch
Creators: name: Babic, A.
name: Miller, L.
name: Jarvis, M. J.
name: Turner, T. J.
name: Alexander, D. M.
name: Croom, S. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: X-ray surveys of Active Galactic Nuclei (AGN) indicate `cosmic downsizing', with the comoving number density of high-luminosity objects peaking at higher redshifts (z about 2) than low-luminosity AGN (z<1). Aims: We test whether downsizing is caused by activity shifting towards low-mass black holes accreting at near-Eddington rates, or by a change in the average rate of accretion onto supermassive black holes. We estimate the black hole masses and Eddington ratios of an X-ray selected sample of AGN in the Chandra Deep Field South at z<1, probing the epoch where AGN cosmic downsizing has been reported. Methods: Black hole masses are estimated both from host galaxy stellar masses, which are estimated from fitting to published optical and near-infrared photometry, and from near-infrared luminosities, applying established correlations between black hole mass and host galaxy properties. Both methods give consistent results. Comparison and calibration of possible redshift-dependent effects is also made using published faint host galaxy velocity dispersion measurements. Results: The Eddington ratios in our sample span the range 10^{-5} to 1, with median log(L_bol/L_Edd)=-2.87, and with typical black hole masses about 10^{8} solar masses. The broad distribution of Eddington ratios is consistent with that expected for AGN samples at low and moderate luminosity. We find no evidence that the CDF-S AGN population is dominated by low-mass black holes accreting at near-Eddington ratios and the results suggest that diminishing accretion rates onto average-sized black holes are responsible for the reported AGN downsizing at redshifts below unity.
description: Accepted for publication in Astronomy and Astrophysics
Comparison of Quantum and Classical Local-field Effects on Two-Level Atoms in a Dielectric
Creators: name: Crenshaw, Michael E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The macroscopic quantum theory of the electromagnetic field in a dielectric medium interacting with a dense collection of embedded two-level atoms fails to reproduce a result that is obtained from an application of the classical Lorentz local-field condition. Specifically, macroscopic quantum electrodynamics predicts that the Lorentz redshift of the resonance frequency of the atoms will be enhanced by a factor of the refractive index n of the host medium. However, an enhancement factor of (n*n+2)/3 is derived using the Bloembergen procedure in which the classical Lorentz local-field condition is applied to the optical Bloch equations. Both derivations are short and uncomplicated and are based on well-established physical theories, yet lead to contradictory results. Microscopic quantum electrodynamics confirms the classical local-field-based results. Then the application of macroscopic quantum electrodynamic theory to embedded atoms is proved false by a specific example in which both the correspondence principle and microscopic theory of quantum electrodynamics are violated.
description: Published version with rewritten abstract and introduction
การเตรียมเส้นใยซิลเวอร์ด้วยกระบวนการปั่นแบบไฟฟ้าสถิตย์
Creators: name: กาญจนา ลือพงษ์
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2009
Subjects: เส้นใยซิลเวอร์, การปั่นเส้นใยด้วยไฟฟ้าสถิตย์, สัณฐานวิทยา, การป้องกันแบคทีเรีย

description: 2, 3, วารสารวิชาการและวิจัย มทร.พระนคร
การศึกษาความสามารถในการทำงานเป็นทีมของนักศึกษาคณะครุศาสตร์อุตสาหกรรม                  สาขาวิชาวิศวกรรมอิเล็กทรอนิกส์
Creators: name: พิสิฐ สอนละ
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2009
Subjects: ความสามารถในการทำงานเป็นทีม, คณะครุศาสตร์อุตสาหกรรม

description: 2, 3, วารสารวิชาการและวิจัย มทร.พระนคร
ความรู้เกี่ยวกับความต้องการและการจัดการความต้องการทางด้านซอฟต์แวร์
Creators: name: บุญประเสริฐ  สุรักษ์รัตนสกุล
Publisher: name: สถาบันเทคโนโลยีพระจอมเกล้าเจ้าคุณทหารลาดกระบัง
Year: 2014
Subjects: วิศวกรรมความต้องการ, ความต้องการทางด้านซอฟต์แวร์, การจัดการความต้องการทางด้านซอฟต์แวร์, คุณภาพของความต้องการทางด้านซอฟต์แวร์, มาตรฐานในการจัดทำความต้องการทางซอฟท์แวร์

description: 2, 8, วารสารวิชาการและวิจัย มทร.พระนคร
Photonic analogue of Mollow triplet with on-chip photon pair generation in dressed modes
Creators: name: Cui, Chaohan
name: Zhang, Liang
name: Fan, Linran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Making analogy with atomic physics is a powerful tool for photonic technology, witnessed by the recent development in topological photonics and non-Hermitian photonics based on parity-time symmetry. Mollow triplet is a prominent atomic effect with both fundamental and technological importance. Here we demonstrate the analogue of Mollow triplet with quantum photonic systems. Photonic entanglement is generated with spontaneous nonlinear processes in dressed photonic modes, which are introduced through coherent multimode coupling. We further demonstrate the flexibility of the photonic system to realize different configurations of dressed states, leading to the controlled modification of Mollow triplet. Our work would enable the investigation of complex atomic processes and the realization of unique quantum functionalities based on photonic systems.
Examples of Collaborations Across Regions: WACREN-NII
Creators: name: Oaiya, Omo
name: Yamaji, Kazu
Publisher: name: Zenodo
Year: 2019
Subjects: JAIRO Cloud
Africa
Japan
WACREN
NII
Open repositories
Research data infrastructure
Research workflow

description: This presentation was made at the COAR 2019 Annual Meeting & General Assembly, Lyon (France)
Understanding Heating in Active Region Cores through Machine Learning II. Classifying Observations
Creators: name: Barnes, W. T.
name: Bradshaw, S. J.
name: Viall, N. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Constraining the frequency of energy deposition in magnetically-closed active region cores requires sophisticated hydrodynamic simulations of the coronal plasma and detailed forward modeling of the optically-thin line-of-sight integrated emission. However, understanding which set of model inputs best matches a set of observations is complicated by the need for any proposed heating model to simultaneously satisfy multiple observable constraints. In this paper, we train a random forest classification model on a set of forward-modeled observable quantities, namely the emission measure slope, the peak temperature of the emission measure distribution, and the time lag and maximum cross-correlation between multiple pairs of AIA channels. We then use our trained model to classify the heating frequency in every pixel of active region NOAA 1158 using the observed emission measure slopes, peak temperatures, time lags, and maximum cross-correlations and are able to map the heating frequency across the entire active region. We find that high-frequency heating dominates in the inner core of the active region while intermediate frequency dominates closer to the periphery of the active region. Additionally, we assess the importance of each observed quantity in our trained classification model and find that the emission measure slope is the dominant feature in deciding with which heating frequency a given pixel is most consistent. The technique presented here offers a very promising and widely applicable method for assessing observations in terms of detailed forward models given an arbitrary number of observable constraints.
description: 29 pages, 8 figures, accepted for publication in The Astrophysical Journal
การออกแบบและพัฒนาโปรแกรมประยุกต์บนสื่อสังคมออนไลน์เพื่อเพิ่มประสบการณ์ของผู้เข้าชมพิพิธภัณฑ์  กรณีศึกษาเมื่อพิพิธภัณฑ์ปิดชั่วคราว
Creators: name: อุทัยวรรณ  จตุพร
name: กิ่งกาญจน์  สุขคณาภิบาล
Publisher: name: มหาวิทยาลัยกรุงเทพ
Year: 2014
Subjects: พิพิธภัณฑ์, ประสบการณ์การเยี่ยมชมพิพิธภัณฑ์, สื่อสังคมออนไลน์, โปรแกรมประยุกต์

description: 2, 8, วารสารวิชาการและวิจัย มทร.พระนคร
OBSERVATION AND STUDY OF THE BEHAVIOR OF UNIVERSITY STUDENTS IN THE SOCIAL ENVIRONMENT
Creators: name: Kholmatov, Sh.
Publisher: name: Zenodo
Year: 2023

description: Currently, mentally developed, creatively gifted, inquisitive youth are a huge source of forces driving the scientific and technological progress of society, which in the future will have to integrate with the world community in all spheres. In this regard, the search for young talented specialists, their correct orientation, and the formation of knowledge and skills are one of the highest goals.
Fractional Quantum Hall Effect in Optical Lattices
Creators: name: Hafezi, Mohammad
name: Sorensen, Anders S.
name: Demler, Eugene
name: Lukin, Mikhail D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze a recently proposed method to create fractional quantum Hall (FQH) states of atoms confined in optical lattices [A. Sørensen {\it et al.}, Phys. Rev. Lett. {\bf 94} 086803 (2005)]. Extending the previous work, we investigate conditions under which the FQH effect can be achieved for bosons on a lattice with an effective magnetic field and finite onsite interaction. Furthermore, we characterize the ground state in such systems by calculating Chern numbers which can provide direct signatures of topological order and explore regimes where the characterization in terms of wavefunction overlap fails. We also discuss various issues which are relevant for the practical realization of such FQH states with ultracold atoms in an optical lattice, including the presence of the long-range dipole interaction which can improve the energy gap and stabilize the ground state. We also investigate a new detection technique based on Bragg spectroscopy to probe these system in an experimental realization.
description: 18 pages, 12 figures
Fragmentation of identical and distinguishable bosons' pairs and natural geminals of a trapped bosonic mixture
Creators: name: Alon, Ofir E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a mixture of two kinds of identical bosons there are two types of pairs, identical bosons' pairs, of either species, and pairs of distinguishable bosons. In the present work fragmentation of pairs in a trapped mixture of Bose-Einstein condensate is investigated using a solvable model, the symmetric harmonic-interaction model for mixtures. The natural geminals for pairs made of identical or distinguishable bosons are explicitly contracted by diagonalizing the intra-species and inter-species reduced two-particle density matrices, respectively. Properties of pairs' fragmentation in the mixture are discussed, the role of the mixture's center-of-mass and relative center-of-mass coordinates is elucidated, and a generalization to higher-order reduced density matrices is made. As a complementary result, the exact Schmidt decomposition of the wavefunction of the bosonic mixture is constructed. The entanglement between the two species is governed by the coupling of their individual center-of-mass coordinates, and it does not vanish at the limit of an infinite number of particles where any finite-order intra-species and inter-species reduced density matrix per particle is 100\% condensed. Implications are briefly discussed.
description: 36 pages
Формирование культуры поведения студентов вуза средствами технологий личностно ориентированного образования
Creators: name: Цепкова Анжелика Николаевна
Publisher: name: Самарский научный вестник
Year: 2019
Subjects: студент; культура; поведение; технология; образование; воспитание; личностно ориентированное образование; средство; формирование; вуз; действие-поступок; действие-операция; функции; диалог; игра; игра-метафора; игра-самокритика; игра – выбор тактики.

description: В статье обосновывается, что одним из способов решения задачи формирования культуры поведения студентов вуза является реализация преподавателем технологий личностно ориентированного образования. Обозначается специфика поступков-слов и поступков-дел в поведении человека. Раскрывается различие между действием-операцией (рассматривается безотносительно его морального, нравственного значения) и действием-поступком (рассматривается с точки зрения морального, нравственного значения). Обосновывается эффективность технологий личностно ориентированного образования для формирования культуры поведения студентов через обращение к основным положениям парадигмы личностно ориентированного образования: положение о ценностях личностно ориентированного образования (личность, культура, творчество), положение о цели личностно ориентированного образования (воспитание целостного человека культуры, природная, социальная и культурная сущности которого находятся во взаимосвязи); положение о функциях личностно ориентированного образования (гуманитарная, культуросозидательная, интегрирующая). Показывается специфика личностно ориентированного образования, заключающаяся в том, что, вопервых, жизненные ситуации, воссоздаваемые в образовательном пространстве личности, требуют организации личностного способа жизнедеятельности воспитуемого; во-вторых, особое место занимает развитие ценностно-смысловой сферы сознания воспитанников, в то время как в рамках традиционной образовательной парадигмы акцент делается на развитии познавательной сферы. Рассматривается триада «задача – диалог – игра» как база технологий личностно ориентированного образования. Приводятся примеры игр, построенных с использованием технологий личностно ориентированного образования и способствующих формированию культуры поведения студентов (игра «Вербальное поведение (уверенное, неуверенное и грубое)»; игра «Невербальные формы уверенного, неуверенного, грубого поведения»; игра «Чувство собственного достоинства»; игра-дискуссия «Умейте чувствовать рядом с собой человека»; игра-метафора, игра-самокритика, игра – выбор тактики).
Fructose intake and circulating triglycerides: An examination of the role of APOC3
Creators: name: Campbell, Eric
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Nutrition
subject: APOC3
subject: Fructose
subject: hypertriglyceridemia

description: Fructose consumption can lead to marked increases in plasma triglycerides in both humans and laboratory animals.  We have observed that overnight access to a 16% fructose solution can promote hypertriglyceridemia in rats. Several investigators have suggested that APOC 3 may be implicated in promoting fructose-induced hypertriglyceridemia.  Wehave examined the role of APOC 3 in liver and blood taken from rats that had been given access to a fructose solution overnight as a supplement to standard laboratory chow.  Hepatic APOC3 mRNA expression from fructose alone resulted in a 14 % reduction compared to control. Interestingly, hepatic APOC3 expression was increased by about 250% in sucrose, high fructose corn syrup and glucose groups. The serum protein levels of APOC3 did not differ across groups. Contrary to our hypothesis, these results indicate that glucose containing sugars increased hepatic APOC3 mRNA expression but no sugar was capable of increasing the serum protein level.
Global Inequality in Energy Consumption from 1980 to 2010
Creators: name: Lawrence, Scott
name: Liu, Qin
name: Yakovenko, Victor M.
Publisher: name: Digital Repository at the University of Maryland
Year: 2013
Subjects: Inequality
Energy consumption
Carbon emission
Maximal entropy
Exponential distribution
Lorenz curve
Gini coefficient
Econophysics
The law of 1/3
Globalization

description: We study the global probability distribution of energy consumption per capita
around the world using data from the U.S. Energy Information Administration (EIA) for
1980–2010. We find that the Lorenz curves have moved up during this time period, and the
Gini coefficient, G, has decreased from 0.66 in 1980 to 0.55 in 2010, indicating a decrease
in inequality. The global probability distribution of energy consumption per capita in 2010 is
close to the exponential distribution with G = 0.5. We attribute this result to the globalization
of the world economy, which mixes the world and brings it closer to the state of maximal
entropy. We argue that global energy production is a limited resource that is partitioned
among the world population. The most probable partition is the one that maximizes entropy,
thus resulting in the exponential distribution function. A consequence of the latter is the law
of 1/3: the top 1/3 of the world population consumes 2/3 of produced energy. We also find
similar results for the global probability distribution of CO2 emissions per capita.
Detailed Measurements of Fire-Induced Mixing Phenomena
Creators: name: Layton, Thomas George
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: subject: Engineering
subject: fire
subject: laser
subject: modeling
subject: protection
subject: saltwater
subject: salt-water

description: This study successfully validated the use of salt-water analog modeling as an effective diagnostic tool for predicting fire-induced flows. A technique was developed for taking measurements using combined Planar Laser-Induced Fluorescence (PLIF) and Particle Image Velocimetry (PIV), and results were analyzed with respect to smoke filling as well as transient ceiling layer dynamics, and turbulent mixing intensity. Data was shown to be in good agreement with theory, further validating the salt-water analogy as a tool for diagnostics, prediction, and scaling of fire phenomena.
Spectral gaps of the one-dimensional Schrödinger operators with singular periodic potentials
Creators: name: Mikhailets, Vladimir
name: Molyboga, Volodymyr
Publisher: name: arXiv
Year: 2008
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 34L40 (Primary), 47A10, 47A75 (Secondary)

description: The behaviour of the lengths of spectral gaps $\{γ_{n}(q)\}_{n=1}^{\infty}$ of the Hill-Schrödinger operators S(q)u=-u''+q(x)u,\quad u\in \mathrm{Dom}(S(q)) with real-valued 1-periodic distributional potentials $q(x)\in H_{1{-}per}^{-1}(\mathbb{R})$ is studied. We show that they exhibit the same behaviour as the Fourier coefficients $\{\widehat{q}(n)\}_{n=-\infty}^{\infty}$ of the potentials $q(x)$ with respect to the weighted sequence spaces $h^{s,φ}$, $s>-1$, $φ\in \mathrm{SV}$. The case $q(x)\in L_{1{-}per}^{2}(\mathbb{R})$, $s\in \mathbb{Z}_{+}$, $φ\equiv 1$ corresponds to the Marchenko-Ostrovskii Theorem.
description: 10 pages
On the $ϕ^{3}$ theory above six dimensions
Creators: name: Rong, Junchen
name: Zhu, Jierong
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: dimension: 6
field theory: conformal
dimension: 4
model: vector
fixed point
beta function
bootstrap
fusion
O(N)
Conformal Field Theory
Field Theories in Higher Dimensions

description: We study the scalar φ$^{3}$ theory above six dimensions. The beta function $ \beta (g)=-\in g-\frac{3}{4}{g}^3 $ in d = 6 − 2ϵ dimensions has a UV fixed point when ϵ < 0. Like the O(N) vector models above four dimensions, such a fixed point observed perturbatively in fact corresponds to a pair of complex CFTs separated by a branch cut. Using both the numerical bootstrap method and Gliozzi’s fusion rule truncation method, we argue that the fixed points of the ϕ$^{3}$ theory above six dimensions exist.
Asymmetric Sensory Reweighting in Human Upright Stance
Creators: name: Logan, David
name: Kiemel, Tim
name: Jeka, John J.
Publisher: name: Digital Repository at the University of Maryland
Year: 2014
Subjects: Ankles
Electromyography
Hip
Kinematics
Legs
Signal processing
Somatosensory system
Vision

description: To investigate sensory reweighting as a fundamental property of sensor fusion during standing, we probed postural control with simultaneous rotations of the visual scene and surface of support. Nineteen subjects were presented with pseudo-random pitch rotations of visual scene and platform at the ankle to test for amplitude dependencies in the following conditions: low amplitude vision: high amplitude platform, low amplitude vision: low amplitude platform, and high amplitude vision: low amplitude platform. Gain and phase of frequency response functions (FRFs) to each stimulus were computed for two body sway angles and a single weighted EMG signal recorded from seven muscles. When platform stimulus amplitude was increased while visual stimulus amplitude remained constant, gain to vision increased, providing strong evidence for inter-modal reweighting between vision and somatosensation during standing. Intra-modal reweighting of vision was also observed as gains to vision decreased as visual stimulus amplitude increased. Such intra-modal and inter-modal amplitude dependent changes in gain were also observed in muscular activity. Gains of leg segment angle and muscular activity relative to the platform, on the other hand, showed only intra-modal reweighting. That is, changing platform motion amplitude altered the responses to both visual and support surface motion whereas changing visual scene motion amplitude did not significantly affect responses to support surface motion, indicating that the sensory integration scheme between somatosensation (at the support surface) and vision is asymmetric.
description: Funding for this research was provided by National Institute of Neurological Disorders and Stroke grant R01 NS-35070 (PI: J. Jeka). NIH Reporter: http://projectreporter.nih.gov/project_i​nfo_description.cfm?aid=6911493&icde=152​17597&ddparam=&ddvalue=&ddsub=&cr=3&csb=​default&cs=ASC. Funding for Open Access provided by the UMD Libraries Open Access Publishing Fund. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Induced recombination in the proximal regions of chromosome 2 in females of Drosophila Melanogaster
Creators: name: Tattersall, Philippa Jill
Publisher: name: University of British Columbia
Year: 2010

description: In order to study and compare spontaneous and radiation induced recombination frequencies of the euchromatic and heterochromatic regions of chromosome 2 Drosophila melanogaster females were exposed to 0, 2, 3, 4, or 5 krads of gamma radiation. Exchange was measured in the b-Bl, Bl-It, lt-rl, rl-pk, and pk-cn intervals. The lt-rl interval defines a wholly heterochromatic segment. Analysis of the recombination data demonstrates that spontaneous recombination occurs in the heterochromatic interval at a frequency of approximately 0.1% and the frequency of induced recombination is primarily increased in the heterochromatic interval. Moreover, the frequency of recombination in the heterochromatic interval is correlated with the dose of radiation. There are slight or no increases in the recombination frequencies of the euchromatic segments and the regions containing the heterochromatic-euchromatic boundaries show responses intermediate to the heterochromatic and euchromatic regions. Testing of the recombinant chromosomes indicates that 22% of them are associated with recessive lethals. The association is greater in eggs laid the first four days after radiation treatment than in thoselaid five-eleven days after the radiation treatment. It is postulated that induced recombination can occur via symmetrical as well as asymmetrical interchange. The interchromosomal effect of chromosome 3_, heterozygous for In(3LR)DcxF, on recombination in chromosome 1_ has been studied. The results show that its effect is not significant in the heterochromatic region. Thus, the alterations in the recombination frequencies owing to radiation treatment appear to be independent of those owing to the interchromosomal effect. Recombination was also measured in the presence of the heterochromatic deficiency - Df(2R)MS2¹º. The results indicate that the frequency of recombination is decreased in the chromosome arm containing the deficiency and in the heterochromatic interval of the left arm. The euchromatic regions of the opposite arm show a slight increase in recombination. A higher number of multiple crossover progeny are recovered than would be expected according to map distances in the presence of the heterochromatic deficiency, Df(2R)MS2¹º, the heterozygous inversion, In(3LR)DcxF, and for double crossovers involving the heterochromatic region, but only at high doses of radiation.
Enhancing Ground-Based Observations of Trans-Neptunian Objects using a Single-Epoch Parallax Measurement from L2
Creators: name: Giovinazzi, Mark R.
name: Blake, Cullen H.
name: Bernardinelli, Pedro H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Space-based observatories at the second Sun-Earth Lagrange Point (L2) offer a unique opportunity to efficiently determine the orbits of distant solar system objects by taking advantage of the parallax effect that arises from nearly simultaneous ground- and space-based observations. Given the typical orbit of an observatory about L2, the observational baseline of $\sim1.5\times10^6$ km between L2 and Earth results in an instantaneous parallax of $\sim$10''-100'', even for the most distant of detectable trans-Neptunian objects (TNOs) in our solar system. Current ground-based strategies for measuring the orbits of TNOs are very expensive and require multiple years of observations. We show that the direct constraint on the distance to a TNO, afforded by near-simultaneous ground- and space-based observations, allows us to confidently determine orbits with as few as three ground-based observations spanning 24 hr combined with a single observational epoch from an observatory orbiting L2.
description: 11 pages, 6 figures, accepted for publication in Publications of the Astronomical Society of the Pacific
Homogeneous fractional embeddings
Creators: name: Inizan, Pierre
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Fractional equations appear in the description of the dynamics of various physical systems. For Lagrangian systems, the embedding theory developped by Cresson ["Fractional embedding of differential operators and Lagrangian systems", J. Math. Phys. 48, 033504 (2007)] provides a univocal way to obtain such equations, stemming from a least action principle. However, no matter how equations are obtained, the dimension of the fractional derivative differs from the classical one and may induce problems of temporal homogeneity in fractional objects. In this paper, we show that it is necessary to introduce an extrinsic constant of time. Then, we use it to construct two equivalent fractional embeddings which retain homogeneity. The notion of fractional constant is also discussed through this formalism. Finally, an illustration is given with natural Lagrangian systems, and the case of the harmonic oscillator is entirely treated.
description: 14 pages