cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Macrothrix spinosa King 1853
Creators: name: Gusakov, Vladimir A.
name: Dien, Tran Duc
name: Tran, Hoan Quoc
name: Thanh, Nguyen Thi Hai
name: Huan, Phan Trong
name: Ha, Vo Thi
name: Dinh, Cu Nguyen
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Anomopoda
Macrothricidae
Macrothrix
Macrothrix spinosa

description: 14. Macrothrix spinosa King, 1853
Localities and specimens found: 25 – 4♀, 1♀ ov, 13j; 26 – 1♀, 2j; 32 – 2♀, 1♀ em, 1j; 51 – 2♀, 1j.
Distribution and ecology. Macrothrix spinosa is one of the best-known representatives of the genus, especially in tropical and subtropical regions around the world (Smirnov 1992; Korovchinsky et al. 2021b). Kotov et al. (2013a) indicate it for all biogeographic zones except Antarctica. This macrothricid is very common in the Oriental and adjacent states (Chiang & Du 1979; Idris 1983; Michael & Sharma 1988; Sanoamuang 1998; Rane 2002, 2005, 2011; Maiphae et al. 2005, 2008; Tanaka & Ohtaka 2010; Chatterjee et al. 2013; Korovchinsky 2013; Kotov et al. 2013b; Van Damme et al. 2013; Ji et al. 2015; Sinev et al. 2015, 2020; Sinev & Yusoff 2015, 2018; Lopez et al. 2017; Sharma & Sharma 2017; Choedchim & Maiphae 2023), including Vietnam (Dang & Pham 1979; Dang et al. 1980, 2002; Dang & Ho 2001; Duong et al. 2008; Sinev & Korovchinsky 2013; Gusakov et al. 2014; Zhdanova 2014; Phan et al. 2015). Note that in a number of the afore-cited sources, M. spinosa is given under the synonymous name, Macrothrix goeldi Richard, 1897 (Smirnov 1992; Kotov et al. 2013a).
Macrothrix spinosa is a littoral species primarily associated with plant-filled areas. It occurs in almost all types of water bodies, both in plankton and benthos (Idris 1983; Phan et al. 2015; Sinev et al. 2015, 2020; Choedchim & Maiphae 2023). In our material, this crustacean was found in a reservoir and a natural lake, including a sample from the roots of floating moss (see Appendix 1).
Remarks. It is possible that populations of M. spinosa from different parts of the world represent a complex of similar species. This issue requires further detailed research (Korovchinsky et al. 2021b).
description: Published as part of Gusakov, Vladimir A., Dien, Tran Duc, Tran, Hoan Quoc, Thanh, Nguyen Thi Hai, Huan, Phan Trong, Ha, Vo Thi & Dinh, Cu Nguyen, 2025, An annotated checklist of the main representatives of meiobenthos from inland water bodies of Central and Southern Vietnam. III. Water fleas (Cladocera), pp. 401-455 in Zootaxa 5613 (3) on pages 411-412, DOI: 10.11646/zootaxa.5613.3.1, http://zenodo.org/record/15216705
EXPLORING THE CULTURAL TAPESTRY:  TOURISM DYNAMICS AND TOURIST PERCEPTIONS IN UZBEKISTAN
Creators: name: Djambulov Abatbay Kuatbayevich  a student of the Faculty of Economics
Publisher: name: Zenodo
Year: 2024

description: Uzbekistan, nestled in the heart of Central Asia, boasts a rich tapestry of history, culture, and natural beauty that has attracted tourists from around the globe. This article delves into the multifaceted landscape of tourism in Uzbekistan, analyzing its historical roots, current dynamics, and the perceptions of tourists who traverse its ancient cities and stunning landscapes. Drawing upon a synthesis of scholarly research and empirical data, this study sheds light on the evolving tourism industry in Uzbekistan and the factors shaping tourists' experiences in this captivating destination.

Keywords: Tourism, Uzbekistan, Central Asia, Cultural Heritage, Silk Road, Tourist Perceptions, Tourism Development, Sustainable Tourism, Hospitality Infrastructure, Cultural Attractions
ENHANCING STUDENTS' CRITICAL THINKING THROUGH DEBATING: A PEDAGOGICAL APPROACH
Creators: name: Usnaddinova Dilovar  Teacher at Renessans University
name: Husniddinova Hilola   A student of Uzbek National University named after Mirzo Ulugbek
Publisher: name: Zenodo
Year: 2024

description: Critical thinking is a fundamental skill essential for navigating the complexities of the modern world. Debating, as an educational tool, offers a dynamic platform for students to cultivate critical thinking abilities. This article explores the theoretical foundations of critical thinking and its relationship with debating. It examines how debating enhances various facets of critical thinking, including analysis, evaluation, inference, and reflection. Furthermore, the article discusses practical strategies for educators to effectively integrate debating into curricula to foster robust critical thinking skills among students.

Keywords: Critical thinking, Debating, Pedagogy, Education, Analysis, Evaluation, Argumentation, Evidence-based reasoning, Metacognition, Curriculum integration
АРХИТЕКТУРНЫЕ РЕШЕНИЯ ИСТОРИЧЕСКОЙ ЗАСТРОЙКИ Г. АСТРАХАНИ
Creators: name: ЛЕОНОВА Ирина Анатольевна
Publisher: name: Образование и право
Year: 2020
Subjects: историческая застройка
архитектура
деревянное зодчество
модерн
конструктивизм
историческое наследие

description: Изучение особенностей архитектуры исторической застройки города имеет большое значение для выработки научно-практических рекомендаций по ее сохранению, а также для формирования основных принципов композиционно-пространственной архитектуры современного города и его перспективного развития. В исторической городской застройке имеются как каменные здания, так и деревянные, у большинства которых цоколь и первый этаж каменные. Технологии их возведения традиционные для того времени. Исторические застройки своеобразные лаборатории сохранения и развития пространственной среды и отдельных сооружений, народных традиций, образа жизни городского и сельского населения. Изучение особенностей архитектуры исторической застройки города позволит принимать более обоснованные и рациональные решения в ее современной преобразовании, гармонично сочетать с современными постройками, что способствует большей привлекательности самого города.
EMPOWERING TOMORROW'S LEADERS: THE ROLE AND IMPACT OF YOUTH PARLIAMENT IN UZBEKISTAN
Creators: name: Shahzada Bazarbaeva Alliyar qizi  a head of department "Social-legal media center"
Publisher: name: Zenodo
Year: 2024

description: This scientific article explores the establishment and evolution of the Youth Parliament in Uzbekistan, shedding light on its significance in fostering civic engagement, political awareness, and leadership skills among the nation's youth. The Youth Parliament serves as a platform for young individuals to actively participate in the democratic process, contributing to the development of a more inclusive and informed society.

Keywords: Youth Policy, Uzbekistan, Central Asia, Education, Employment, Social Engagement, Cultural Development, Sustainable Development, Gender Equality, International Collaboration
Ground-state phase diagrams of the generalized Falicov-Kimball model with Hund coupling
Creators: name: Lemański, Romuald
name: Wrzodak, Jakub
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Charge and spin orderings are studied on the simplest 1D and the 2D square lattice within the generalized Falicov-Kimball model with Hund coupling between localized and itinerant electrons. Using the restricted phase diagrams method (RPDM) a number of simple rules of formation of various sorts of ground state phases have been detected. In particular, relationships between density of current carriers (electrons or holes) and type of charge and magnetic arrangement has been determined. In 2D in the mixed valence regime only axial stripes (vertical or horizontal) have been found for intermediate values of the coupling constants. They are composed of ferromagnetic or antiferromagnetic chains interchanged with non-magnetic ones. For band fillings close to the half filling stripe phases oriented along one of the main diagonal direction are formed. The results suggest a possibility of tuning modulations of charge and magnetic superstructures with a change of doping.
description: 10 pages, 6 figures; Fig. 2 slightly modified and the text adjusted accordingly, references added
Open Science. Forschungsdatenmanagement. Stiftung Universität Hildesheim (UB Hildesheim).
Creators: name: Strauch, Annette
Publisher: name: Zenodo
Year: 2020
Subjects: Open Science
Open Science FDM UB Hildesheim
FDM

description: Folien und Materialien zum Thema Open Science, die für die SUH (FDM, UB Hildesheim) genutzt werden. "Work in Progress".
 Im Frühjahr 2021 werden die Materialien geteilt -> Open.
Grounding Bohmian Mechanics in Weak Values and Bayesianism
Creators: name: Wiseman, H. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bohmian mechanics (BM) is a popular interpretation of quantum mechanics in which particles have real positions. The velocity of a point x in configuration space is defined as the standard probability current j(x) divided by the probability density P(x). However, this ``standard'' j is in fact only one of infinitely many that transform correctly and satisfy \dot P + \del . j=0. In this article I show that there is a unique j that can be determined experimentally as a weak value using techniques that would make sense to a classical physicist. Moreover, this operationally defined j equals the standard j, so, assuming \dot x = j/P, the possible Bohmian paths can also be determined experimentally from a large enough ensemble. Furthermore, this approach to deriving BM singles out x as the hidden variable, because (for example) the operationally defined momentum current is in general incompatible with the evolution of the momentum distribution. Finally I discuss how, in this setting, the usual quantum probabilities can be derived from a Bayesian standpoint, via the principle of indifference.
description: 11 pages
Non-relativistic limit in the 2+1 Dirac Oscillator: A Ramsey Interferometry Effect
Creators: name: Bermudez, A.
name: Martin-Delgado, M. A.
name: Luis, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the non-relativistic limit of a paradigmatic model in Relativistic Quantum Mechanics, the two-dimensional Dirac oscillator. Remarkably, we find a novel kind of Zitterbewegung which persists in this non-relativistic regime, and leads to an observable deformation of the particle orbit. This effect can be interpreted in terms of a Ramsey Interferometric phenomenon, allowing an insightful connection between Relativistic Quantum Mechanics and Quantum Optics. Furthermore, subsequent corrections to the non-relativistic limit, which account for the usual spin-orbit Zitterbewegung, can be neatly understood in terms of a Mach-Zehnder interferometer.
description: RevTex4 file, color figures, submitted for publication
Dadagulella browni subsp. mafiensis Rowson & Tattersfield 2013, subsp. nov.
Creators: name: Rowson, Ben
name: Tattersfield, Peter
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Streptaxidae
Dadagulella
Dadagulella browni
Dadagulella browni mafiensis

description: Dadagulella browni mafiensis subsp. nov.
Figs 21, 54, 84; Table 1
Etymology
From Mafia Island, with the final ‘a’ elided for euphony.
Type material examined
NHMUK. 20110174: 1 ad., Mlula, Mafia I. (approx. 7.87°S, 39.76°E), evergreen coastal thicket on clay loam coral rag, leg. Frontier Tanzania, Oct.- Nov. 1990, labelled “ Gulella radius aggreg.” by B. Verdcourt.
Other material examined
None.
Description
SHELL (Figs 21, 54). Small (3.30 mm high x 1.80 mm wide), of 6.0 whorls. Ovate-acuminate, spire broadly acuminate (spire angle 65°). Apex conical. Embryonic whorls smoothly granulate. Later whorls with relatively coarse ribs (12 per mm on penultimate whorl). Sutures relatively shallow. Umbilicus narrowly open. Peristome incomplete parietally. Outer palatal surface of aperture with a depression corresponding to the palatal tooth. Dentition 5-fold, consisting of: one lamella-like parietal tooth and one additional parietal denticle; one slab-like palatal tooth, forming a narrow parieto-palatal sinus; one basal denticle; and a deep-set, folded columellar baffle, but no shallower columellar denticles. Shells and anatomy of juveniles unknown.
Range and habitat
Evergreen coastal thicket at the type locality.
Remarks
This taxon is in some respects intermediate between the type specimens of D. r. radius comb. nov. and D. b. browni comb. nov., and thus distinct from either, yet difficult to place. It is larger and not as squat as other D. browni comb. nov. s.l., and lacks the additional basal denticle and shallower columellar dentition. Conversely, it has a parietal denticle not seen in D. radius comb. nov. s.l, is smaller and squatter than most D. radius comb. nov. s.l., and has a longer and narrower parieto-palatal sinus than any D. radius comb. nov. s.l. Mafia Island, from which no other Dadagulella gen. nov. are yet known, lies at almost the same latitude (7.8°S) as the apparent northernmost limit of D. b. browni comb. nov. in mainland Tanzania. Given the morphology of this specimen, its latitude and its isolation as an island population, we treat it as a subspecies of D. browni comb. nov.
description: Published as part of Rowson, Ben & Tattersfield, Peter, 2013, Revision of Dadagulella gen. nov., the " Gulella radius group " (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies, pp. 1-46 in European Journal of Taxonomy 37 (37) on pages 13-14, DOI: 10.5852/ejt.2013.37, http://zenodo.org/record/3806770
Quantum Hall to Insulator Transition in the Bilayer Quantum Hall Ferromagnet
Creators: name: Murthy, Ganpathy
name: Sachdev, Subir
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe a new phase transition of the bilayer quantum Hall ferromagnet at filling fraction $ν= 1$. In the presence of static disorder (modeled by a periodic potential), bosonic $S=1/2$ spinons can undergo a superfluid-insulator transition while preserving the ferromagnetic order. The Mott insulating phase has an emergent U(1) photon, and the transition is between Higgs and Coulomb phases of this photon. Physical consequences for charge and counterflow conductivity, and for interlayer tunneling conductance in the presence of quenched disorder are discussed.
description: 4 pages, no figures
Dilatation operator and Cayley graphs
Creators: name: Bonini, M.
name: Cicuta, G. M.
name: Onofri, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We use the algebraic definition of the Dilatation operator provided by Minahan, Zarembo, Beisert, Kristijansen, Staudacher, proper for single trace products of scalar fields, at leading order in the large-N 't Hooft limit to develop a new approach to the evaluation of the spectrum of the Dilatation operator. We discover a vast number of exact sequences of eigenstates.
description: 30 pages and 3 eps figures, v2: few typos corrected
An in-medium full-folding model approach to quasielastic (p,n) charge-exchange reactions
Creators: name: Arellano, H. F.
name: Love, W. G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A microscopic description of the quasielastic (p,n) charge-exchange reaction (here, charge-exchange scattering between analogue states) is presented and discussed. Emphasis is focused on the spin-isospin structure of the projectile-target coupling. The model is a coupled-channel extension of the full-folding optical model approach (OMP) developed for nucleon elastic scattering, where emphasis is placed on retaining the genuine off-shell behavior of realistic effective interactions in the nuclear medium. The resulting non-local optical potentials are applied to the calculation of (p,n) differential cross sections, with particular emphasis on small-angle Fermi ($ΔS=0$) cross-sections to isobaric analog states. These parameter-free results provide a reasonable description of the $^{14}$C(p,n)-data at proton energies above $\sim$100 MeV, but deteriorate for heavier targets. These shortcomings are analyzed and possible ways to correct them are discussed.
description: 20 pages plus 10 figures. Accepted for publication in Phys. Rev. C
Modified Averaging Processes in Cosmology and the Structured FRW model
Creators: name: Khosravi, Shahram
name: Kourkchi, Ehsan
name: Mansouri, Reza
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the volume averaging of inhomogeneous metrics within GR and discuss its shortcomings such as gauge dependence, singular behavior as a result of caustics, and causality violations. To remedy these shortcomings, we suggest some modifications to this method. As a case study we focus on the inhomogeneous structured FRW model based on a flat LTB metric. The effect of averaging is then studied in terms of an effective backreaction fluid. It is shown that, contrary to the claims in the literature, the backreaction fluid behaves like a dark matter component, instead of dark energy, having a density of the order of 10^{-5} times the matter density, and most importantly, it is gauge dependent.
description: 17 pages, 9 figures, Brief changes in figs.4-6 and the Results section due to minor miscalculation, One reference corrected
Scalar and gauge translation-invariant noncommutative models
Creators: name: Tanasa, Adrian
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We make here a short overview of the recent developments regarding translation-invariant models on the noncommutative Moyal space. A scalar model was first proposed and proved renormalizable. Its one-loop renormalization group flow and parametric representation were calculated. Furthermore, a mechanism to take its commutative limit was recently given. Finally, a proposition for a renormalizable, translation-invariant gauge model was made.
description: 6 pages, no figures
Chinampa agriculture : the operation of an intensive pre industrial resource system in the Valley of Mexico
Creators: name: Robertson, Alastair J.
Publisher: name: University of British Columbia
Year: 2010

description: During the 14th and 15th Centuries the complex of marshes and shallow lakes that occupied the low elevations of the Valley of Mexico were thoroughly modified by the construction of thousands of small agricultural platforms known as chinampas, and of an elaborate network of dykes, canals and aqueducts. A quantified model of the hydrological systems of the Valley indicates that under natural conditions water levels fluctuated to such an extent that the productivity of chinampa platforms would have been limited. The larger hydraulic installations smoothed these fluctuations in the upstream portions of the lake complex and so permitted the agricultural exploitation of these areas. On the platforms seedbedding and other intensive horticultural techniques were employed which allowed the maximum utilization of the controlled hydraulic environment. Canals were exploited not only for irrigation water but also as reservoirs for plant nutrients, which promoted a conservative use of materials in the system as a whole. Communities of non-crop plants were maintained on the platform border and these protected crops from climatic extremes, and may also have been important in regulating populations of insect pests. The hydraulic installations were managed by high-ranking officials of the Aztec state, while the chinampa platforms were to a large extent managed by their cultivators. Although managerial decisions were made by individuals of widely different rank, there was a tendency for decision-making to occur at the lowest hierarchic level compatible with the ability of the manager to command the labour and materials necessary to implement the decision. This allowed managers to respond rapidly and efficiently to small variations in the conditions of the physical systems that they managed. The available data indicate that the chinampas produced high and sustained yields per unit area and did so without requiring large subsidies of energy and materials. The physical, ecological and managerial principles of chinampa agriculture are therefore relevant to the design of modern agricultural systems that seek to exhibit these general properties.
Parton rearrangement and fast thermalization in heavy-ion collisions at RHIC and LHC energies
Creators: name: Burau, G.
name: Bleibel, J.
name: Fuchs, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The implications of parton rearrangement processes on the dynamics of ultra-relativistic heavy-ion collisions have been investigated. A microscopic transport approach, namely the quark gluon string model (QGSM) which has been extended for a locally density-dependent partonic rearrangement and fusion procedure served as the tool for this investigations. The model emulates effectively the dynamics of a strongly coupled quark plasma and final hadronic interactions. Main QGSM results on anisotropic flow components v1 and v2 at top RHIC energy are compiled. Predictions for the pseudorapidity dependence of directed and elliptic flow in Pb+Pb collisions under LHC conditions are presented.
description: 4 pages incl. 3 figures, contribution for the proceedings of Quark Matter 2008 at Jaipur (India)
Dadagulella delgada Rowson & Tattersfield 2013, comb. nov.
Creators: name: Rowson, Ben
name: Tattersfield, Peter
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Streptaxidae
Dadagulella
Dadagulella delgada

description: Dadagulella delgada (Muratov, 2010) comb. nov.
Figs 27, 84; Table 1
Gulella delgada Muratov, 2010: 274, 276-277, figs 37, 39-45.
Type material examined
None.
Type locality
“ Mozambique: Cabo Delgado: 1.1 km WNW of lighthouse, 19 km NE of Palma, 10.68883°S, 40.62806°E, alt. 11 m, 24 Nov. 2009, I.V. Muratov.” (Muratov 2010).
Other material examined
None.
Description
SHELL (Fig. 27). Medium-sized (3.80 - 4.00 mm high x 1.80 - 1.80 mm wide), of 6.5 - 7.5 whorls. Elongate ovate-acuminate, spire narrowly acuminate (spire angle 43 - 49°). Apex sharply pointed (with axis slightly deviated in one syntype). Embryonic whorls smooth. Later whorls with very few, widely-spaced, flaring, subtriangular, lamella-like ribs (about 7 per mm on penultimate whorl). Sutures very deep. Umbilicus narrowly open. Peristome incomplete parietally. Outer palatal surface of aperture with a depression corresponding to the palatal tooth. Dentition 5-fold, consisting of: one lamella-like parietal tooth; one slab-like palatal tooth, forming a parieto-palatal sinus; one basal denticle; a deep-set columellar baffle and one shallower columellar denticle. Juvenile shells with 3-fold dentition: one parietal lamella; one basal tooth and one columellar thickening. Muratov (2010) found no internal dentition in the upper whorls. Anatomy unknown.
Range and habitat
At the type locality, vegetation on coral rag (Muratov 2010: 284).
Remarks
The few, flaring, lamella-like ribs and elongate, narrowly acuminate spire of D. delgada comb. nov. allow it to be separated from other species, including some D. radius comb. nov. s.l. which it resembles in size and dentition.
description: Published as part of Rowson, Ben & Tattersfield, Peter, 2013, Revision of Dadagulella gen. nov., the " Gulella radius group " (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies, pp. 1-46 in European Journal of Taxonomy 37 (37) on page 15, DOI: 10.5852/ejt.2013.37, http://zenodo.org/record/3806770
Polygonal excitations of spinning and levitating droplets
Creators: name: Hill, R. J. A.
name: Eaves, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The shape of a weightless spinning liquid droplet is governed by the balance between the surface tension and centrifugal forces. The axisymmetric shape for slow rotation becomes unstable to a non-axisymmetric distortion above a critical angular velocity, beyond which the droplet progresses through a series of 2-lobed shapes. Theory predicts the existence of a family of 3- and 4-lobed equilibrium shapes at higher angular velocity. We investigate the formation of a triangular-shaped magnetically levitated water droplet, driven to rotate by the Lorentz force on an ionic current within the droplet. We also study equatorial traveling waves which give the droplet 3, 4 and 5-fold symmetry.
description: Supplementary information at http://www.nottingham.ac.uk/~ppzlev/Droplet
Alona intermedia Sars 1862
Creators: name: Gusakov, Vladimir A.
name: Dien, Tran Duc
name: Tran, Hoan Quoc
name: Thanh, Nguyen Thi Hai
name: Huan, Phan Trong
name: Ha, Vo Thi
name: Dinh, Cu Nguyen
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Anomopoda
Chydoridae
Alona
Alona intermedia

description: 15. Alona intermedia Sars, 1862
Localities and specimens found: 41 – 12♀, 4♀ ov, 3♀ em, 2j; 95 – 1♀, 1♀ ov, 1♀ em, 1j.
Distribution and ecology. Alona intermedia has an almost cosmopolitan distribution (Kotov et al. 2013a; Sinev 2016, 2017). It is relatively widely known (mainly as A. intermedia or as a synonym, Biapertura intermedia (Sars, 1862)) in the Oriental region (Fernando 1974; Chiang & Du 1979; Idris & Fernando 1981; Idris 1983; Michael & Sharma 1988; Maiphae et al. 2008; Tanaka & Ohtaka 2010; Chatterjee et al. 2013; Korovchinsky 2013; Van Damme et al. 2013; Ji et al. 2015; Sinev 2016; Lopez et al. 2017; Sharma & Sharma 2017; Choedchim & Maiphae 2023), not excluding Vietnam (Dang et al. 1980, 2002; Dang & Ho 2001; Sinev 2017; present study).
The lifestyle and ecology of this crustacean are still not fully understood. According to Korovchinsky et al. (2021b), its northern populations usually live in the open sandy littoral of lakes and ponds of various trophic levels and are not generally found in the thickets of aquatic plants. However, it is also present in swamps, including among sphagnum. In Southeast Asia, A. intermedia is positioned as a littoral species, associated with vegetation (Sinev 2016). In this region, it is recorded in lakes, streams, ponds, rice fields, swamps (Idris 1983; Dang & Ho 2001; Choedchim & Maiphae 2023). We detected these chydorids in a densely plant-filled, acidified small man-made pond and in a clean mountain stream in the dry season (see Appendix 1). Thus, it is obvious that A. intermedia can inhabit a wide spectrum of habitats.
Remarks. Globally, A. intermedia populations most likely represent a group of cryptic species in need of comprehensive revision (Van Damme et al. 2010, 2013; Sinev 2016, 2017; Korovchinsky et al. 2021b).
description: Published as part of Gusakov, Vladimir A., Dien, Tran Duc, Tran, Hoan Quoc, Thanh, Nguyen Thi Hai, Huan, Phan Trong, Ha, Vo Thi & Dinh, Cu Nguyen, 2025, An annotated checklist of the main representatives of meiobenthos from inland water bodies of Central and Southern Vietnam. III. Water fleas (Cladocera), pp. 401-455 in Zootaxa 5613 (3) on page 412, DOI: 10.11646/zootaxa.5613.3.1, http://zenodo.org/record/15216705
Deconfinement phase transition in holographic QCD with matter
Creators: name: Kim, Youngman
name: Lee, Bum-Hoon
name: Nam, Siyoung
name: Park, Chanyong
name: Sin, Sang-Jin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the framework of a holographic QCD approach we study an influence of matters on the deconfinement temperature, $T_c$. We first consider quark flavor number ($N_f$) dependence of $T_c$. We observe that $T_c$ decreases with $N_f$, which is consistent with a lattice QCD result. We also delve into how the quark number density $ρ_q$ affects the value of $T_c$. We find that $T_c$ drops with increasing $ρ_q$. In both cases, we confirm that the contributions from quarks are suppressed by $1/N_c$, as it should be, compared to the ones from a gravitational action (pure Yang-Mills).
description: 10 pages, 1 figure
Tunable spin-gaps in a quantum-confined geometry
Creators: name: Frantzeskakis, Emmanouil
name: Pons, Stephane
name: Mirhosseini, Hossein
name: Henk, Jurgen
name: Ast, Christian. R.
name: Grioni, Marco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the interplay of a giant spin-orbit splitting and of quantum confinement in artificial Bi-Ag-Si trilayer structures. Angle-resolved photoelectron spectroscopy (ARPES) reveals the formation of a complex spin-dependent gap structure, which can be tuned by varying the thickness of the Ag buffer layer. This provides a means to tailor the electronic structure at the Fermi energy, with potential applications for silicon-compatible spintronic devices.
Potential inversion with subbarrier fusion data revisited
Creators: name: Hagino, K.
name: Watanabe, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We invert experimental data for heavy-ion fusion reactions at energies well below the Coulomb barrier in order to directly determine the internucleus potential between the colliding nuclei. In contrast to the previous applications of the inversion formula, we explicitly take into account the effect of channel couplings on fusion reactions, by assuming that fusion cross sections at deep subbarrier energies are governed by the lowest barrier in the barrier distribution. We apply this procedure to the $^{16}$O +$^{144}$Sm and $^{16}$O +$^{208}$Pb reactions, and find that the inverted internucleus potential are much thicker than phenomenological potentials. A relation to the steep fall-off phenomenon of fusion cross sections recently found at deep subbarrier energies is also discussed.
description: 5 pages, 3 eps figures
Current Fluctuations in Rough Superconducting Tunnel Junctions
Creators: name: Heinrich, Georg
name: Wilhelm, F. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Intrinsic noise is known to be ubiquitous in Josephson junctions. We investigate a voltage biased superconducting tunnel junction including a very small number of pinholes - transport channels possessing a transmission coefficient close to unity. Although few of these pinholes contribute very little to the conductance, they can dominate current fluctuations in the low-voltage regime. We show that even fully transparent transport channels between superconductors contribute to shot noise due to the uncertainty in the number of Andreev cycles. We discuss shot noise enhancement by Multiple Andreev Reflection in such a junction and investigate whether pinholes might contribute as a microscopic mechanism of two-level current fluctuators. We discuss the connection of these results to the junction resonators observed in Josephson phase qubits.
description: 11 pages, 11 figures
Nature of the spin dynamics and 1/3 magnetization plateau in azurite
Creators: name: Rule, K. C.
name: Wolter, A. U. B.
name: Süllow, S.
name: Tennant, D. A.
name: Brühl, A.
name: Köhler, S.
name: Wolf, B.
name: Lang, M.
name: Schreuer, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a specific heat and inelastic neutron scattering study in magnetic fields up into the 1/3 magnetization plateau phase of the diamond chain compound azurite Cu$_3$(CO$_3$)$_2$(OH)$_2$. We establish that the magnetization plateau is a dimer-monomer state, {\it i.e.}, consisting of a chain of $S = 1/2$ monomers, which are separated by $S = 0$ dimers on the diamond chain backbone. The effective spin couplings $J_{mono}/k_B = 10.1(2)$ K and $J_{dimer}/k_B = 1.8(1)$ K are derived from the monomer and dimer dispersions. They are associated to microscopic couplings $J_1/k_B = 1(2)$ K, $J_2/k_B = 55(5)$ K and a ferromagnetic $J_3/k_B = -20(5)$ K, possibly as result of $d_{z^2}$ orbitals in the Cu-O bonds providing the superexchange pathways.
description: 5 pages, 4 figures
Dadagulella cresswelli Rowson & Tattersfield 2013, sp. nov.
Creators: name: Rowson, Ben
name: Tattersfield, Peter
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Streptaxidae
Dadagulella
Dadagulella cresswelli

description: Dadagulella cresswelli sp. nov.
urn:lsid:zoobank.org:act: B3362D6F- 2118 -4D1D-8B25-098E25B0C3B2
Figs 29, 57, 84; Table 1
Etymology
After Pete Cresswell, who collected the specimen.
Type material examined
TANZANIA: holotype NMW.Z.2012.042.00001: 1 ad., Ngorongoro Crater, Arusha Region, crater rim on southeastern side, heavy rainforest leaf litter, leg. P.L. Cresswell, 2 Jun.1996.
Other material examined
None.
Description
SHELL (Figs 29, 57). Medium-sized (3.70 mm high x 1.80 mm wide), of 7.0 whorls. Ovate-acuminate, spire coeloconoid (spire angle 52°). Apex sharply pointed. Embryonic whorls smoothly granulate. Later whorls with relatively fine ribs (13 per mm on penultimate whorl). Sutures shallow. Umbilicus narrowly open. Peristome complete. Outer palatal surface of aperture with a very deep, long, furrow-like depression corresponding to the palatal tooth. Dentition 5-fold, consisting of: one V-shaped parietal tooth; one bifid slab-like palatal tooth, forming a clear parieto-palatal sinus, with the upper cusp projecting into the sinus; a deep-set columellar baffle and two shallower columellar denticles. Shells and anatomy of juveniles unknown.
Range and habitat
Forest at the type locality in northern Tanzania. The vegetation is presumably of a montane type, since the crater floor is above 1700 m while the rim rises to over 2400 m or higher.
Remarks
This species is distinctive in its deep, long furrow on the outer palatal surface in combination with the coeloconoid spire and dentition. D. minerata sp. nov. shares these features, but differs in having weaker ribs and less complex dentition. It is the only Dadagulella gen. nov. species thus far collected in the volcanic (as opposed to block-faulted) highlands of Tanzania or Kenya.
description: Published as part of Rowson, Ben & Tattersfield, Peter, 2013, Revision of Dadagulella gen. nov., the " Gulella radius group " (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies, pp. 1-46 in European Journal of Taxonomy 37 (37) on page 18, DOI: 10.5852/ejt.2013.37, http://zenodo.org/record/3806770
Development of signal-extraction scheme for Resonant Sideband Extraction
Creators: name: Kokeyama, K.
name: Somiya, K.
name: Kawazoe, F.
name: Sato, S.
name: Kawamura, S.
name: Sugamoto, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: As a future plan, an advanced gravitational-wave detector will employ an optical configuration of resonant sideband extraction (RSE), achieved with an additional mirror at the signal-detection port of the power-recycled Fabry-Perot Michelson interferometer. To control the complex coupled cavity system, one of the most important design issues is how to extract the longitudinal control signals of the cavities. We developed a new signal-extraction scheme which provides an appropriate sensing matrix. The new method uses two sets of sidebands: one of the sideband components satisfies the critical coupling ondition for the RSE interferometer and reaches the signal-extraction port, and the other sideband is completely reflected by the Michelson interferometer. They provide a diagonalized sensing matrix and enable the RSE control to be robust.
description: 8 pages, 6 figures, 2 tables
Physiological and cytological effects of sodium fluoride additions to cultures of euryhaline phytoplankters with emphasis on a sensitive dinoflagellate
Creators: name: Klut, Maria Emilia De Andrade Alves De Sá
Publisher: name: University of British Columbia
Year: 2010

description: The effects of 50-200 mg/L fluoride (F) additions on the growth of five axenic phytoplankter species in nutrient-enriched half-salinity seawater (14-15‰) were examined. The chlorophyte Dunalieila tertiolecta and the diatom Thalassiosira weissfloqii were virtually unaffected in both growth rate and maximum growth density, whereas another diatom Chaetoceros gracilis appeared to be growth-stimulated by all the fluoride concentrations tested. The growth of the prymnesiophyte Pavlova lutheri was 35-50 % inhibited, at 150-200 mg/L F concentration. However, this inhibition was partially overcome upon repeated transfers at these fluoride levels. The dinoflagellate Amphidinium carterae was the most sensitive to the highest fluoride concentration, with growth inhibited by 20-25% at 150 mg/L and by more than 90% at 200 mg/L F. When this species was exposed to gradual increases in F concentration, or was allowed to adapt to the highest F level over an extended period of time, normal growth was resumed. Interestingly, the F-resistant strain of Amphidinium did not require additional fluoride for growth. However, during adaptation this dinoflagellate was apparently undergoing major metabolic changes which were accompanied by biochemical, physiological and ultrastructural alterations. Although chlorophyll biosynthesis of Amphidinium seemed to be arrested at the time of F-inhibition, normal biosynthetic rates were resumed after F-adaptation, while the total carotenoid content increased. Concurrent with the development of F-resistance, there was an enhancement in dark respiration and possibly in photorespiration. Although the normal photosynthetic rate of this dinoflagellate was restored during the adaptation period, it appears that this recovery was impaired by a reduction in the photosynthetic efficiency due to increased photorespiration. Ultrastructural studies of F-adapted Amphidinium revealed abnormal features in the chloroplast (especially in the pyrenoid), mitochondria, and the nucleus. Thylakoid formation was greatly affected by fluoride, leading to the appearance of a prolamellar-like configuration in the pyrenoid matrix. This unexpected appearance of prolamellar-like structures in the F-adapted cells suggests that the pyrenoid may be a center for thylakoid assembly. These cells also showed large osmiophilic inclusions in the mitochondria. Large microbodies were found in close association with the mitochondria and chloroplast, suggesting an increased metabolic dependence on photorespiration. The nuclei of F-adapted cells showed dark and light concentric rings in the nucleolar region, accompanied by signs of mitotic activity, which were not observed in the F-inhibited cells. It is inferred that F-adaptation may have entailed some form of genetic change, which appears to be permanent and expressed as a characteristic phenotypic mutant.
Effects of Magnetic Fields on Neutrino-dominated Accretion Model for Gamma-ray Bursts
Creators: name: Xie, Yi
name: Huang, Chang-Yin
name: Lei, Wei-Hua
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Many models of gamma-ray bursts suggest a common central engine: a black hole of several solar masses accreting matter from a disk at an accretion rate from 0.01 to 10 M_\sun / s. The inner region of the disk is cooled by neutrino emission and large amounts of its binding energy were liberated, which could trigger the fireball. We improve the neutrino-dominated accreting flows by considering the effects of the magnetic fields, and find that more than half of the liberating energy can be extracted directly by the large-scale magnetic fields on the disk. And it turns out that the temperature of the disk is a bit lower than the neutrino-dominated accreting flows without magnetic field. Therefore, The outflows are magneticallydominated rather than neutrino dominated. In our model, neutrino mechanism can fuel some GRBs (not the brightest ones), but cannot fuel X-ray flares. However, the magnetic processes (both BZ and electromagnetic luminosity from a disk) are viable mechanisms for most of GRBs and the following X-ray flares.
description: 10 pages, 4 figures, accepted by ChJAA
Theory of the nonsteady diffusion growth of a gas bubble in a supersaturated solution of gas in liquid
Creators: name: Grinin, A. P.
name: Kuni, F. M.
name: Gor, G. Yu.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using a self-similar approach a general nonsteady theory is elaborated for the case of the diffusion growth of a gas bubble in a supersaturated solution of gas in liquid. Due to the fact that the solution and the bubble in it are physically isolated, the self-similar approach accounts for the balance of the number of gas molecules in the solution and in the bubble that expells incompressible liquid solvent while growing. The rate of growth of the bubble radius in its dependence from gas solubility and solution supersaturation is obtained. There is a nonsteady effect of rapid increase of the rate of bubble growth simultaneous with the growth of the product of gas solubility and solution supersaturation. This product is supplied with a limitation from above, which also stipulates isothermal conditions of bubble growth. The smallness of gas solubility is not presupposed.
description: 22 pages, 3 figures
Rings and shells of "dark matter" as MOND artifacts
Creators: name: Milgrom, Mordehai
name: Sanders, Robert H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: MOND predicts that a mass, M, contained within its transition radius r_t=(MG/a0)^{1/2}, may exhibit a feature at about that radius in the form of a shell, or projected ring, in the deduced distribution of its phantom dark matter. This occurs despite the absence of any underlying feature in the true (``baryon'') source distribution itself. The phenomenon is similar to the appearance of an event horizon and other unusual physics ``in the middle of nothing'' near the transition radius of General Relativity $MG/c^2$. We consider the possibility that this pure MOND phenomenon is in the basis of the recent finding of such a ring in the galaxy cluster Cl 0024+17 by Jee et al. We find that the parameters of the observed ring can be naturally explained in this way; this feature may therefore turn out to be a direct evidence for MOND. We study this phenomenon in simple, axisymmetric configurations aligned with the line of sight: spherical masses, a dumbbell of spherical masses, and an elongated, thin structure. The properties of the apparent ring: its radius, surface density, and contrast, depend on the form of the MOND interpolating function and on the exact three dimensional distribution of the sources (the thin-lens approximation is quite invalid in MOND). We also comment on the possible appearance of orphan features, marking the Newtonian-to-MOND transition, in high surface brightness galaxies. In particular, we find that previously unexplained structure in the rotation curves of some galaxies may be evidence for such features.
description: 29 pages, 9 figures, Astrophysical J., in press; changed to match published version; added a discussion of the rotation curve of NGC 2841 with new MOND interpolating functions
Electron-Electron Interactions on the Edge States of Graphene: A Many Body Configuration Interaction Study
Creators: name: Dutta, Sudipta
name: Lakshmi, S.
name: Pati, Swapan K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied zigzag and armchair graphene nano ribbons (GNRs), described by the Hubbard Hamiltonian using quantum many body configuration interaction methods. Due to finite termination, we find that the bipartite nature of the graphene lattice gets destroyed at the edges making the ground state of the zigzag GNRs a high spin state, whereas the ground state of the armchair GNRs remains a singlet. Our calculations of charge and spin densities suggest that, although the electron density prefers to accumulate on the edges, instead of spin polarization, the up and down spins prefer to mix throughout the GNR lattice. While the many body charge gap results in insulating behavior for both kinds of GNRs, the conduction upon application of electric field is still possible through the edge channels because of their high electron density. Analysis of optical states suggest differences in quantum efficiency of luminescence for zigzag and armchair GNRs, which can be probed by simple experiments.
description: 5 pages, 4 figures
Perspective on attractive-repulsive interactions in dynamical networks: progress and future
Creators: name: Majhi, Soumen
name: Chowdhury, Sayantan Nag
name: Ghosh, Dibakar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Emerging collective behavior in complex dynamical networks depends on both coupling function and underlying coupling topology. Through this perspective, we provide a brief yet profound excerpt of recent research efforts that explore how the synergy of attractive and repulsive interactions influence the destiny of ensembles of interacting dynamical systems. We review the incarnation of collective states ranging from chimera or solitary states to extreme events and oscillation quenching arising as a result of different network arrangements. Though the existing literature demonstrates that many of the crucial developments have been made, nonetheless, we come up with significant routes of further research in this field of study.
X-ray clusters of galaxies in conformal gravity
Creators: name: Diaferio, Antonaldo
name: Ostorero, Luisa
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We run adiabatic N-body/hydrodynamical simulations of isolated self-gravitating gas clouds to test whether conformal gravity, an alternative theory to General Relativity, is able to explain the properties of X-ray galaxy clusters without resorting to dark matter. We show that the gas clouds rapidly reach equilibrium with a density profile which is well fit by a beta-model whose normalization and slope are in approximate agreement with observations. However, conformal gravity fails to yield the observed thermal properties of the gas cloud: (i) the mean temperature is at least an order of magnitude larger than observed; (ii) the temperature profiles increase with the square of the distance from the cluster center, in clear disagreement with real X-ray clusters. These results depend on a gravitational potential whose parameters reproduce the velocity rotation curves of spiral galaxies. However, this parametrization stands on an arbitrarily chosen conformal factor. It remains to be seen whether a different conformal factor, specified by a spontaneous breaking of the conformal symmetry, can reconcile this theory with observations.
description: 10 pages, 5 figures, MNRAS in press. A few clarifications included, according to referee's suggestions