cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Soilless Tomato Production: Effects of Hemp Fiber and Rock Wool Growing Media on Yield, Secondary Metabolites, Substrate Characteristics and Greenhouse Gas Emissions
Creators: name: Nerlich, Annika
name: Karlowsky, Stefan
name: Schwarz, Dietmar
name: Förster, Nadja
name: Dannehl, Dennis
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: greenhouse gases
subject: greenhouse
subject: organic substrates
subject: carotenoids
subject: phenolic compounds
subject: carbon dioxide
subject: nitrous oxide
subject: methane
subject: N2O
subject: CH4
subject: 580 Pflanzen (Botanik)

description: Replacement of rock wool by organic substrates is considered to reduce the environmental impact, e.g., through energy savings during production and waste prevention, caused by hydroponically produced crops. A suitable substrate for plant production is characterized by an optimal composition of air- and water-filled pores. In our study, we used hemp fibers as an organic alternative to rock wool in order to cultivate tomato plants in hydroponics for 36 weeks. The leaf area, plant length, and yields, as well as the quality of fruits including soluble solid contents, dry weight content, mineral composition, and contents of phenolic compounds caused by both substrates, were similar. Carotenoids were significantly increased in fruits from plants grown in hemp at some measuring dates. Nevertheless, higher emission rates of greenhouse gases such as N2O, CO2, and CH4 caused by hemp fiber compared to those emitted by rock wool during use are rather disadvantageous for the environment. While hemp proved to be a suitable substrate in terms of some physical properties (total pore volume, bulk density), a lower volume of air and easily available water as well as very rapid microbial decomposition and the associated high nitrogen immobilization must be considered as disadvantages.
Convex Iteration for Distance-Geometric Inverse Kinematics
Creators: name: Giamou, Matthew
name: Marić, Filip
name: Rosen, David M.
name: Peretroukhin, Valentin
name: Roy, Nicholas
name: Petrović, Ivan
name: Kelly, Jonathan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Inverse kinematics (IK) is the problem of finding robot joint configurations that satisfy constraints on the position or pose of one or more end-effectors. For robots with redundant degrees of freedom, there is often an infinite, nonconvex set of solutions. The IK problem is further complicated when collision avoidance constraints are imposed by obstacles in the workspace. In general, closed-form expressions yielding feasible configurations do not exist, motivating the use of numerical solution methods. However, these approaches rely on local optimization of nonconvex problems, often requiring an accurate initialization or numerous re-initializations to converge to a valid solution. In this work, we first formulate inverse kinematics with complex workspace constraints as a convex feasibility problem whose low-rank feasible points provide exact IK solutions. We then present \texttt{CIDGIK} (Convex Iteration for Distance-Geometric Inverse Kinematics), an algorithm that solves this feasibility problem with a sequence of semidefinite programs whose objectives are designed to encourage low-rank minimizers. Our problem formulation elegantly unifies the configuration space and workspace constraints of a robot: intrinsic robot geometry and obstacle avoidance are both expressed as simple linear matrix equations and inequalities. Our experimental results for a variety of popular manipulator models demonstrate faster and more accurate convergence than a conventional nonlinear optimization-based approach, especially in environments with many obstacles.
description: In IEEE Robotics and Automation Letters (RA-L) and presented at the IEEE International Conference on Robotics and Automation (ICRA'22), Philadelphia, USA, May 23-27, 2022
Sperchon schwoerbeli Pesic & Panesar, 2009, sp. nov.
Creators: name: Pesic, Vladimir
name: Panesar, Arne
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Sperchonidae
Sperchon
Sperchon schwoerbeli

description: Sperchon schwoerbeli sp. nov.
(Fig. 1 A, 2A–C)
Type series. Holotype: female, dissected and slide mounted in Hoyer's fluid. India: Himachal Pradesh State, Lahaul, 4 km north of Keylong, road to Leh, near bridge over side brook, with layers of moss from rockface, 23.viii.1990, 3300m asl, leg. Schwoerbel & Panesar.
Diagnosis. I-Leg-6 greatly expanded at distal end; excretory pore surrounded by a sclerotized ring.
Description. Female: Integument net shaped. Postoculare on large rounded plates (Fig. 2A). Two anterior pairs of dorsocentral plates (Dc-1 and -2) fused and lying laterally; other 3 pairs of dorsocentral plates (Dc-3- 5) occupy central position.
Anterior coxae lying close to each other, but not fused (Fig. 1 A); anterior margins of Cx-1 concave, apodemes weakly developed. Posterior groups of coxae widely separated; glandularia Cxgl-4 at antero-lateral margin of Cx-3; L between anterior end of first coxae and posterior end of fourth coxae 506. Vgl-1 reduced, only accompanying setae on very small sclerites. Excretory pore surrounded by sclerotized ring; one pair of ventral plates; postgenital sclerite developed.
Genital field lying between posterior coxae; L of genital valves 206; genital valves not covering the genital acetabula; posterior acetabula more or less rounded; L of acetabula 1–3: 78-78-53. Chelicera L 328, basal segment L 231, claw L 98, L basal segment/claw 2.4; palp total L 931, dL and %L (in parentheses): P-1 43 (4.6), P-2 209 (22.4), P-3 270 (29), P-4 347 (37.3), P-5 62 (6.7); L P-2/P-4 0.6; P-2 with long ventrodistal projection bearing one long seta and one short seta (Fig. 2B); P-4 ventral margin with 2 short peg-like setae, area with peg-like setae subdivides P-4 into 3 unequal parts, distal part longer than proximal or median parts.
I-Leg-6 (Fig. 2C) greatly expanded at distal end, greatest H of I-Leg-6 106; fourth legs with a few short setae, none of which are plumose. Claw with weakly protruding claw blade and 2 clawlets. L of I-Leg: 91, 116, 150, 247, 213, 234; L of IV-Leg: 156, 131, 163, 331, 325.
Male: unknown.
Discussion. The greatly expanded I-Leg-6 is a unique character of the new species which separates the present species from all known members of the genus.
Etymology. The species is named after Professor Jürgen Schwoerbel.
Habitat. Discovered in mosses in a mountain stream.
Distribution. Known only from the type locality in Himachal Pradesh State (India).
description: Published as part of Pesic, Vladimir & Panesar, Arne, 2009, Studies on water mites (Acari, Hydrachnidia) from the Himalayas, II. New records and descriptions of seven new species from India, pp. 1-22 in Zootaxa 2119 on page 2, DOI: 10.5281/zenodo.188050
High resolution spectral imaging of CO(7-6), [CI](2-1) and continuum of three high-z lensed dusty star-forming galaxies using ALMA
Creators: name: Gururajan, G.
name: Béthermin, M.
name: Theulé, P.
name: Spilker, J. S.
name: Aravena, M.
name: Archipley, M. A.
name: Chapman, S. C.
name: DeBreuck, C.
name: Gonzalez, A.
name: Hayward, C. C.
name: Hezaveh, Y.
name: Hill, R.
name: Jarugula, S.
name: Litke, K. C.
name: Malkan, M.
name: Marrone, D.
name: Narayanan, D.
name: Phadke, K. A.
name: Reuter, C.
name: Vieira, J.
name: Vizgan, D.
name: Weiß, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: High-redshift dusty star-forming galaxies with very high star formation rates (500 -- 3000 M$_{\odot}$ yr$^{-1}$) are key to understanding the formation of the most extreme galaxies in the early Universe. Characterising the gas reservoir of these systems can reveal the driving factor behind the high star formation. Using molecular gas tracers like high-J CO lines, neutral carbon lines and the dust continuum, we can estimate the gas density and radiation field intensity in their interstellar media. In this paper, we present high resolution ($\sim$0.4$^{\prime\prime}$) observations of CO(7-6), [CI](2-1) and dust continuum of 3 lensed galaxies from the SPT-SMG sample at $z\sim$ 3 with the Atacama Large Millimeter/submillimeter Array. Our sources have high intrinsic star-formation rates ($>$850 M$_{\odot}$yr$^{-1}$) and rather short depletion timescales ($<$100 Myr). Based on the L$_{[\rm CI](2-1)}$/L$_{\rm CO(7-6)}$ and L$_{[\rm CI](2-1)}$/L$_{\rm IR}$ ratios, our galaxy sample has similar radiation field intensities and gas densities compared to other submillimetre galaxies. We perform visibility-based lens modelling on these objects to reconstruct the kinematics in the source plane. We find that the cold gas masses of the sources are compatible with simple dynamical mass estimates using ULIRG-like values of the CO-H$_2$ conversion factor $α_{\rm CO}$ but not Milky Way-like values. We find diverse source kinematics in our sample: SPT0103-45 and SPT2147-50 are likely rotating disks while SPT2357-51 is possibly a major merger. The analysis presented in the paper could be extended to a larger sample to determine better statistics of morphologies and interstellar medium properties of high-$z$ dusty star-forming galaxies.
description: 29 pages, 26 figures, Accepted for publication in A&A. Figure 16 and the related conclusions have been revised
Brief an [Theodor] Zwinger III
Creators: name: Cregut, Friedrich Christ
Publisher: name: [s.n.]
Year: 1698

description: von Friedr[ich] Christ Cregutus
description: Lateinisch
description: Verzeichnung=Description=Inventaire Vollständige Rekatalogisierung nach Standortverzeichnis Frey-Gryn Mscr II 1/III 18
Sustainable playground
Creators: name: Vraa, Anne Mette
name: Vraa, Kirsten
name: Mortensen, Niels Henrik
Publisher: name: Grøn Dyst 2010
Year: 2010

description: This project is based on developing children and youngsters understanding of energy production. We wish to create a playground that challenges children’s way to play and makes it exciting and rewarding to play. While playing we want to give the children an idea of what it takes to produce energy. Through this we hope to make them appreciate energy and affect them in their daily use of it. Ideas on how a sustainable playground can be implemented will be presented at the GRØN DYST Study Conference.
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.10.1935, erstellt von James Peter Rowland am Stonyhurst Observatory in Lancashire
Creators: name: Sternwarte Stonyhurst Observatory am Stonyhurst College in Lancashire
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung am Stonyhurst Observatory in Lancashire, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: unbekannt.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
description: ETH-Bibliothek
On the prime graph of a finite group with unique nonabelian composition factor
Creators: name: Grechkoseeva, Maria A.
name: Vasil'ev, Andrey V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D60, 20D06

description: We say that finite groups are isospectral if they have the same sets of orders of elements. It is known that every nonsolvable finite group $G$ isospectral to a finite simple group has a unique nonabelian composition factor, that is, the quotient of $G$ by the solvable radical of $G$ is an almost simple group. The main goal of this paper is prove that this almost simple group is a cyclic extension of its socle. To this end, we consider a general situation when $G$ is an arbitrary group with unique nonabelian composition factor, not necessarily isospectral to a simple group, and study the prime graph of $G$, where the prime graph of $G$ is the graph whose vertices are the prime numbers dividing the order of $G$ and two such numbers $r$ and $s$ are adjacent if and only if $r\neq s$ and $G$ has an element of order $rs$. Namely, we establish some sufficient conditions for the prime graph of such a group to have a vertex adjacent to all other vertices. Besides proving the main result, this allows us to refine a recent result by P. Cameron and N. Maslova concerning finite groups almost recognizable by prime graph.
The Magic Symbol Repertoire of Talismanic Rings from East and West Africa
Creators: name: Graham, Lloyd
Publisher: name: Academia.edu
Year: 2014
Subjects: subject: Religions
subject: Islam--Study and teaching
subject: Magic--Religious aspects
subject: Magic
subject: Africa
subject: Area studies
subject: Africans--Religion
subject: Amulets
subject: Talismans
subject: Oromo (African people)
subject: Tuaregs--Jewelry
subject: Tuaregs--Material culture

description: In West Africa, Berber groups such as the Tuareg use inscribed silver jewelry – rings, pendants and plaques – as talismans. A ring with a curved or flat frontal area may be inscribed with a linear cipher or, if large, carry a "magic square" design. A survey of 132 Tuareg/Berber items revealed that the symbol repertoire appears to be drawn from overlapping categories that include Eastern Arabic and Perso-Arabic numerals; Arabic letters; Tifinagh and Libyco-Berber characters; and the Islamic Seven Seals. Most items combine symbols of different types, and reflections and rotations are common. The magic squares sometimes display symmetry, with diagonals containing repeats of a single symbol. No two designs were identical, but it was possible to define sub-groups. With numerical considerations seemingly secondary to aesthetics, none of the magic squares were mathematically competent. Tuareg gri gri plaques and rings also carry magic square designs, but seem to contain mainly Tifinagh letters. Cryptic apotropaic rings are also found in East Africa. In Ethiopia, especially among the Oromo, smiths inscribe metal rings with talismanic symbols. The symbols are typically arranged evenly around the ring band; there are usually two circular series. The Ethiopian symbol repertoire appears to be drawn from Eastern Arabic and possibly Devanagari numbers; Arabic letters; the Islamic Seven Seals; and unique symbols that resist identification. Most Ethiopian rings combine numerical and non-numerical symbols, and reflections and rotations are common. As one might expect from this makeup, there is a significant overlap with the symbol repertoire of Tuareg rings. The most extreme similarities occur in the small subset of Tuareg and Ethiopian rings that carry complete sets of the Islamic Seven Seals.
Sonnenfleckenzeichnung Nr. 13181.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 29.11.1935, erstellt von William Otto Brunner
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zugeordnete numerische Werte wurden in einer separat geführten, chronologischen Tabelle erfasst. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Within-clutch variation of egg shape in Neotropical passerines is affected by climate, clutch size and diet
Creators: name: Lima da Silva, Tatiane
name: Marini, Miguel Ângelo
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310302
subject: Community ecology (excl. invasive species ecology)

description: Egg shape exhibits wide variation among bird species due to phylogenetic-related morphological constraints and ecological and life-history traits. However, factors related to within-clutch variation are poorly understood. Here, we tested the influence of long-term and short-term precipitation and temperature anomalies, diet (carnivore, herbivore, and omnivore), egg volume, clutch size, and nest type (open and closed) on within-clutch egg shape variation in Neotropical passerines. Within-clutch variation was measured by the coefficient of variation (%) of two egg shape indexes, elongation (length divided by width) and asymmetry (pointedness). We gathered 3,822 egg sets (10,720 eggs) of 420 passerine species. We found higher within-clutch variation in egg asymmetry (CV = 31.63%) than in egg elongation (CV = 2.18%). Using phylogenetic-controlled models, we found that within-clutch variation of egg elongation increased in larger clutch sizes, egg volumes, and omnivore diets. Within-clutch variation of egg asymmetry increased with long-term precipitation anomalies on the year’s driest month before egg-laying, larger clutch sizes, and herbivore diets. Our results suggest that besides variation among species, within-clutch egg shape variation can also respond to climate and life-history characteristics.
Sonnenfleckenzeichnung Nr. 13186.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 06.12.1935, erstellt von William Otto Brunner
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zugeordnete numerische Werte wurden in einer separat geführten, chronologischen Tabelle erfasst. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Experimental Evidence of Nonlinear Avalanche Dynamics of Energetic Particle Modes
Creators: name: Yu, L. M.
name: Zonca, F.
name: Qiu, Z. Y.
name: Chen, L.
name: Chen, W.
name: Ding, X. T.
name: Ji, X. Q.
name: Wang, T.
name: Wang, T. B.
name: Ma, R. R.
name: Yuan, B. S.
name: Shi, P. W.
name: Li, Y. G.
name: Liu, L.
name: Shi, Z. B.
name: Cao, J. Y.
name: Dong, J. Q.
name: Liu, Yi
name: Yang, Q. W.
name: Xu, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Recent observations in HL-2A tokamak give new experimental evidences of energetic particle mode (EPM) avalanche. In a strong EPM burst, the mode structure propagates radially outward within two hundred Alfvén time, while the frequency of the dominant mode changes self-consistently to maximize wave-particle power exchange and mode growth. This suggests that significant energetic particle transport occurs in this avalanche phase, in agreement with theoretical framework of EPM convective amplification. A simplified relay runner model yields satisfactory interpretations of the measurements. The results can help understanding the nonlinear dynamics of energetic particle driven modes in future burning plasmas, such as ITER.
Modelling galaxy clustering in redshift space with a Lagrangian bias formalism and $N$-body simulations
Creators: name: Pellejero-Ibanez, Marcos
name: Stuecker, Jens
name: Angulo, Raul E.
name: Zennaro, Matteo
name: Contreras, Sergio
name: Arico, Giovanni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Improving the theoretical description of galaxy clustering on small scales is an important challenge in cosmology, as it can considerably increase the scientific return of forthcoming galaxy surveys -- e.g. tightening the bounds on neutrino masses and deviations from general relativity. In this paper, we propose and test a new model for the clustering of galaxies that is able to accurately describe redshift-space distortions even down to small scales. This model corresponds to a second-order perturbative Lagrangian bias expansion which is advected to Eulerian space employing a displacement field extracted from $N$-body simulations. Eulerian coordinates are then transformed into redshift space by directly employing simulated velocity fields augmented with nuisance parameters capturing various possible satellite fractions and intra-halo small-scale velocities. We quantify the accuracy of our approach against samples of physically-motivated mock galaxies selected according to either Stellar Mass (SM) or Star Formation Rate (SFR) at multiple abundances and at $z=0$ and $1$. We find our model describes the monopole, quadrupole, and hexadecapole of the galaxy-power spectra down to scales of $k\approx 0.6 [h/$Mpc] within the accuracy of our simulations. This approach could pave the way to significantly increase the amount of cosmological information to be extracted from future galaxy surveys.
description: 15 pages, 8 figures
Superconducting wind turbines
Creators: name: Klingest, Adam Hoffmann
name: Barington, Alexander
name: Madsen, Bjarke Nordentoft
name: Bjørneboe, Daniel
name: Hansen, Kean
name: Borrasso, Rosario
name: Massin, Sébastien
name: Högberg, Stig
name: El-Khatib, Walid Ziad
name: Jensen, Bogi Bech
name: Hansen, Jørn Bindslev
name: Abrahamsen, Asger Bech
name: Sørensen, Mads Peter
Publisher: name: Grøn Dyst 2010
Year: 2010

description: In this project we shall investigate the feasibility of using type II high temperature superconductors in electric generators of future off shore wind turbines. High temperature superconductors can be used to generate a considerable higher magnetic field than in classical magnet designs and thereby reduce weight. The purpose is to assess the technical and economical feasibility of using superconducting generators for sea based wind turbines producing 10-20 MW.
Wave Effects in Double-Plane Lensing
Creators: name: Ramesh, Rahul
name: Meena, Ashish Kumar
name: Bagla, J S
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss the wave optical effects in gravitational lens systems with two point mass lenses in two different lens planes. We identify and vary parameters (i.e., lens masses, related distances, and their alignments) related to the lens system to investigate their effects on the amplification factor. We find that due to a large number of parameters, it is not possible to make generalized statements regarding the amplification factor. We conclude by noting that the best approach to study two-plane and multi-plane lensing is to study various possible lens systems case by case in order to explore the possibilities in the parameter space instead of hoping to generalize the results of a few test cases. We present a preliminary analysis of the parameter space for a two-lens system here.
description: 13 pages, 8 Figures. Comments Welcome
Sperchon
Creators: name: Pesic, Vladimir
name: Panesar, Arne
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Sperchonidae
Sperchon

description: Sperchon cf. hirsutus Cook, 1967
(Fig. 4A–E)
New records. Himachal Pradesh State, Lahaul, 13 km north of Keylong, spring and springbrook, 23.viii.1990, 3300m asl., one female, leg. Schwoerbel & Panesar.
Remarks. Due to the presence of the reticulated integument, the shape of the dorsum (Fig. 4A), palp (Fig. 4C), I-Leg-5 and -6 (Fig. 4D), and the setation of the coxae (numerous small setae associated with the coxae – Fig. 4B) and the absence of glandularia at Cx-3, the specimen from Lahaul shows general conformity with Sperchon hirsutus Cook, 1967 a species described by Cook (1967) from a female specimen collected in the Himachal Pradesh. However, our specimen differs from Cook’s specimen of S. hirsutus in its major idiosoma, gnathosoma and legs dimensions (eg., coxal field L 584, palp total L 827, chelicera L 347). Because in the original description, sclerotization of the excretory pore has not been reported, our attribution of S. hirsutus is tentative.
Distribution. India (Himachal Pradesh State).
description: Published as part of Pesic, Vladimir & Panesar, Arne, 2009, Studies on water mites (Acari, Hydrachnidia) from the Himalayas, II. New records and descriptions of seven new species from India, pp. 1-22 in Zootaxa 2119 on page 6, DOI: 10.5281/zenodo.188050
Sonnenfleckenzeichnung Nr. 13204.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 28.12.1935, erstellt von William Brunner, Assistent
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: Kern-Merz-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zugeordnete numerische Werte wurden in einer separat geführten, chronologischen Tabelle erfasst. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Tailoring the degree of entanglement of two coherently coupled quantum emitters
Creators: name: Trebbia, J. -B
name: Deplano, Q
name: Tamarat, P
name: Lounis, B
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The control and manipulation of quantum-entangled non-local states is a crucial step for the development of quantum information processing. A promising route to achieve such states on a wide scale is to couple solid-state quantum emitters through their coherent dipole-dipole interactions. Entanglement in itself is challenging, as it requires both nanometric distances between emitters and nearly degenerate electronic transitions. Implementing hyperspectral imaging to identify pairs of coupled organic molecules trapped in a low temperature matrix, we reach distinctive spectral signatures of maximal molecular entanglement by tuning the optical resonances of the quantum emitters by Stark effect. We also demonstrate far-field selective excitation of the long-lived subradiant delocalized states with a laser field tailored in amplitude and phase. Interestingly, optical nanoscopy images of the entangled molecules unveil novel spatial signatures that result from quantum interferences in their excitation pathways and reveal the exact locations of each quantum emitter. Controlled molecular entanglement can serve as a test-bench to decipher more complex physical or biological mechanisms governed by the coherent coupling and paves the way towards the realization of new quantum information processing platforms.
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 22.10.1935, erstellt von James Peter Rowland am Stonyhurst Observatory in Lancashire
Creators: name: Sternwarte Stonyhurst Observatory am Stonyhurst College in Lancashire
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung am Stonyhurst Observatory in Lancashire, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: unbekannt.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
description: ETH-Bibliothek
Multiscale coupling of surface temperature with solid diffusion in large lithium-ion pouch cells
Creators: name: Lin, Jie
name: Chu, Howie N.
name: Howey, David A.
name: Monroe, Charles W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Applied Physics (physics.app-ph)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Untangling the relationship between reactions, mass transfer, and temperature within lithium-ion batteries enables control approaches that mitigate thermal hot spots and slow degradation. Here, we develop an efficient physics-based pouch-cell model to simulate lock-in thermography experiments, which synchronously record the applied current, cell voltage, and surface-temperature distribution. Prior modelling efforts have been confounded by experimental temperature profiles whose characteristics suggest anisotropic heat conduction. Accounting for a multiscale coupling between heat flow and solid-state diffusion rationalizes this surface-temperature nonuniformity. We extend an earlier streamlined model based on the popular Doyle--Fuller--Newman theory, augmented by a local heat balance. The reduced-order model is exploited to parametrize and simulate commercial 20 Ah lithium iron phosphate (LFP) cells at currents up to 80 A. This work highlights how microscopic intercalation processes produce distinctive macroscopic heat signatures in large-format cells, as well as how heat signatures can be exploited to fingerprint material properties.
description: 23 pages, 5 figures
Super-light Structures
Creators: name: Pedersen, Birgit Astrid
name: Krag Nielsen, Kasper Laurits
name: Møller, Maria Skovgård
name: Hertz, Kristian
Publisher: name: Grøn Dyst 2010
Year: 2010

description: The project is based on the Vejlefjord bridge, which is a cantilever concrete bridge. The bridge functions as a part of the highway running from north to south in Jutland, running east of Vejle. It spans 1712m, is 26.7m wide and has 110m between the pillars. The main purpose of this project is to compare the original bridge with a similar bridge constructed in superlight concrete. The comparison is divided into two parts. First we have estimated the bearing capacity for the old bridge. Then we constructed the super light bridge using the same load. The second part is a comparison related to the price, CO2 and weight between the original bridge and the new superlight bridge.
Sperchonopsis verrucosa Protz 1896
Creators: name: Pesic, Vladimir
name: Panesar, Arne
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Sperchonidae
Sperchonopsis
Sperchonopsis verrucosa

description: Sperchonopsis verrucosa (Protz, 1896)
New records (new for India). Uttaranchal State, Garhwal Himalayas, Khandagad stream, a tributary of Alaknanda River, ii.–vi. 2006, leg. Kumar one male, two females.
Distribution. Holarctic.
description: Published as part of Pesic, Vladimir & Panesar, Arne, 2009, Studies on water mites (Acari, Hydrachnidia) from the Himalayas, II. New records and descriptions of seven new species from India, pp. 1-22 in Zootaxa 2119 on page 6, DOI: 10.5281/zenodo.188050
Statistical analysis of data from a sustainable community development project in Vietnam
Creators: name: Davidsen, Charlotte Kampp
name: Brockhoff, Per Bruun
Publisher: name: Grøn Dyst 2010
Year: 2010

description: ADDA (Agricultural Development Denmark Asia) has been implementing a sustainable community development project, financed by Danida, in six different provinces of Vietnam since 2007 with the aim of achieving increased local agricultural production. The project has trained 15.400 maize farmers through the participatory Farmer Field Schools (FFS) where they were taught improved cultivation techniques along with the benefit of collaboration. The aim of the current project is to examine specific data from before and after the FFS started to investigate the suggested success based on improved income and extra maize harvested and how these results depend on province specific factors.
The XXL survey: XLVI. Forward cosmological analysis of the C1 cluster sample
Creators: name: Garrel, Christian
name: Pierre, Marguerite
name: Valageas, Patrick
name: Eckert, Dominique
name: Marulli, Federico
name: Veropalumbo, Alfonso
name: Pacaud, Florian
name: Clerc, Nicolas
name: Sereno, Mauro
name: Umetsu, Keiichi
name: Moscardini, Lauro
name: Bhargava, Sunayana
name: Adami, Christophe
name: Chiappetti, Lucio
name: Gastaldello, Fabio
name: Koulouridis, Elias
name: Fevre, Jean-Paul Le
name: Plionis, Manolis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the forward cosmological analysis of an $XMM$ selected sample of galaxy clusters out to a redshift of unity. Following our previous 2018 study based on the dn/dz quantity alone, we perform an upgraded cosmological analysis of the same XXL C1 cluster catalogue (178 objects), with a detailed account of the systematic errors. We follow the ASpiX methodology: the distribution of the observed X-ray properties of the cluster population is analysed in a 3D observable space (count rate, hardness ratio, redshift) and modelled as a function of cosmology. Compared to more traditional methods, ASpiX allows the inclusion of clusters down to a few tens of photons. We obtain an improvement by a factor of 2 compared to the previous analysis by letting the normalisation of the M-T relation and the evolution of the L-T relation free. Adding constraints from the XXL cluster 2-point correlation function and the BAO from various surveys decreases the uncertainties by 23 and 53 % respectively, and 62% when adding both. Switching to the scaling relations from the Subaru analysis, and letting free more parameters, our final constraints are $σ_8$ = $0.99^{+0.14}_{-0.23}$, $Ω_m$ = 0.296 $\pm$ 0.034 ($S_8 = 0.98^{+0.11}_{-0.21}$) for the XXL sample alone. Finally, we combine XXL ASpiX, the XXL cluster 2-point correlation function and the BAO, with 11 free parameters, allowing for the cosmological dependence of the scaling relations in the fit. We find $σ_8$ = $0.793^{+0.063}_{-0.12}$, $Ω_m$ = 0.364 $\pm$ 0.015 ($S_8 = 0.872^{+0.068}_{-0.12}$), but still compatible with Planck CMB at 2.2$σ$. The results obtained by the ASpiX method are promising; further improvement is expected from the final XXL cosmological analysis involving a cluster sample twice as large. Such a study paves the way for the analysis of the eROSITA and future Athena surveys.
description: 20 pages, 10 figures, accepted for publication in A&A, A&A version has the unabridged abstract
Sonnenfleckenzeichnung Nr. 13182, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.11.1935, erstellt von Friedrich Buser in der privaten Beobachtungsstation im Prätschli in Arosa
Creators: name: Buser, Friedrich
Publisher: name: [s.n.]
Year: 1935

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der privaten Beobachtungsstation Prätschli in Arosa, später ergänzt mit einer kleinen Tabelle für die Auszählung der Flecken nach ihrer Verteilung auf Abschnitte der sichtbaren Sonnenhälfte, nach Quadrant bzw. nach Halbkugel (N, S, W, E). Instrument: 15-cm-Zeiss-Refraktor.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Unter Umständen sind tabellarisch notierte Werte, die für Protuberanzen mit rot geschrieben wurden, direkt auf der Fleckenzeichnung vermerkt
description: ETH-Bibliothek
Dynamics of fast neutrino flavor conversions with scattering effects: a detailed analysis
Creators: name: Sasaki, Hirokazu
name: Takiwaki, Tomoya
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We calculate fast conversions of two flavor neutrinos by considering Boltzmann collisions of neutrino scatterings. In an idealized angular distribution of neutrinos with electron-lepton number crossing, we find that the collision terms of the neutrino scattering enhance the transition probability of fast flavor conversions as in the previous study. We analyze the dynamics of fast flavor conversions with collisions in detail based on the motion of polarization vectors in cylindrical coordinate analogous to a pendulum motion. The phase of the all polarization vector synchronizes in the linear evolution, and the phase deviation from the Hamiltonian governs the conversion of neutrino flavor. In the non-linear evolution, a closed orbit in the phase space is observed. The collision terms break the closed orbit and gradually make the phase space smaller. The flavor conversions are enhanced during this limit cycle. After the significant flavor conversion, all of the neutrino polarization vectors start to align with the z-axis owing to the collision effect within the time scale of the collision term irrespective of neutrino scattering angles. We also show the enhancement or suppression of the flavor conversions in various setups of the collision terms and verify consistency with previous studies. Though our analysis does not fully understand the dynamics of fast flavor conversion, the framework gives a new insight into this complicated phenomenon in further study.
description: 16 pages, 13 figures
Atractides himachali Pesic & Panesar, 2009, sp. nov.
Creators: name: Pesic, Vladimir
name: Panesar, Arne
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Hygrobatidae
Atractides
Atractides himachali

description: Atractides himachali sp. nov.
(Figs. 5A–D)
Type material. Holotype: male, dissected and slide mounted in Hoyer's fluid; India: Himachal Pradesh State, Lahaul, 13 km north of Keylong, spring and springbrook, 23.vii.1990, 3300m asl., leg. Schwoerbel & Panesar.
Diagnosis. Dorsal integument: lineated; muscle attachments: unsclerotized; medial suture Cx-1+2 relatively long; genital field: Ac in an obtuse triangle; P-2 and -3 with ventral protrusions; I-Leg: I-Leg-5 thickened (L/HB 2.03), S-1 and –2 narrow interspace, S-1 with truncate tip, S-2 shortened, with a blunt tip.
Description. Male: Dorsally the integument is lineated; muscle attachments: unsclerotized. Coxal field: Cx-1+2 W 291, Cx-1+2 mL 131; lL Cx-1+2 252. Palp (Fig. 5B): palp total L 302, dL and %L (in parentheses): P-1 29 (9.6), P-2 74 (24.5), P-3 70 (23.2), P-4 96 (31.8), P-5 33 (10.9); L P-2/P-4 0.77; ventral margin P-2 with lamellar extension strongly protruding in the distal third, P-3 with similar protuberance distally of the segment, P-4 sword seta inserted halfway between ventral hairs. Genital field (Fig. 5C): anterior margin straight, L/W 150/166, Ac in an obtuse triangle, L Ac-1-3: 59-66-63; excretory pore smooth; Vgl-1: separate from Vgl-2.
I-Leg (Fig. 5D): S-1 and -2 with narrow interspace, S-1 with truncate tip, S-2 shortened, with blunt tip; I- Leg-6 curved; I-Leg-5 dL 197, I-L-5 vL 138, dL/vL 1.43, HB 68, L/HB 2.9; S-1 L 97, L/ W 10.7, S-2 L 88, L/ W 7.3, distance of sword setae at I-Leg-5 16; L ratio S-1/2 1.1; I-Leg-6 L 129, HB 21, L/HB 6.1; L I-Leg-5/6 1.53.
Female: unknown.
Discussion. Atractides himachali sp. nov. shares the combination of a lineated integument and ventral protrusion on P-3, with A. inflatus (Walter, 1925), a rhitrobiontic species, known from the Mediterranean and Iran (Pesic et al. 2004). Compared to A. inflatus (in parentheses data taken from Gerecke 2003 and Pesic et al. 2004), A. himachali sp. nov. is characterized by the following: a longer medial suture Cx-1+2 (mL <100 µm), Ac in an obtuse triangle (in curved line), a triangular Ac-3 (Ac-3 more or less roundish), a stouter I-Leg-5 (dL/ HB 3.41–3.61), a longer setae S-1 and -2 (L S-1 <80µm, S-1 <60µm) and S-1 at the tip truncated (S-1 not truncated distally).
Etymology. The species is named after the state Himachal Pradesh where it was collected.
Habitat. Discovered in a mountain spring and springbrook.
Distribution. Known only from the type locality in the western Himalayas (Himachal Pradesh).
description: Published as part of Pesic, Vladimir & Panesar, Arne, 2009, Studies on water mites (Acari, Hydrachnidia) from the Himalayas, II. New records and descriptions of seven new species from India, pp. 1-22 in Zootaxa 2119 on pages 8-9, DOI: 10.5281/zenodo.188050
BlackLivesMatter 2020: An Analysis of Deleted and Suspended Users in Twitter
Creators: name: Toraman, Cagri
name: Şahinuç, Furkan
name: Yilmaz, Eyup Halit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: After George Floyd's death in May 2020, the volume of discussion in social media increased dramatically. A series of protests followed this tragic event, called as the 2020 BlackLivesMatter movement. Eventually, many user accounts are deleted by their owners or suspended due to violating the rules of social media platforms. In this study, we analyze what happened in Twitter before and after the event triggers with respect to deleted and suspended users. We create a novel dataset that includes approximately 500k users sharing 20m tweets, half of whom actively participated in the 2020 BlackLivesMatter discussion, but some of them were deleted or suspended later. We particularly examine the factors for undesirable behavior in terms of spamming, negative language, hate speech, and misinformation spread. We find that the users who participated to the 2020 BlackLivesMatter discussion have more negative and undesirable tweets, compared to the users who did not. Furthermore, the number of new accounts in Twitter increased significantly after the trigger event occurred, yet new users are more oriented to have undesirable tweets, compared to old ones.
description: Published at the 14th International ACM Conference on Web Science in 2022 (WebSci 2022)
Cellulose Photonic Pigments
Creators: name: Parker, Richard M.
name: Zhao, Tianheng H.
name: Frka-Petesic, Bruno
name: Vignolini, Silvia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: When pursuing sustainable approaches to fabricate photonic structures, nature can be used as a source of inspiration for both the nanoarchitecture and the constituent materials. Although several biomaterials have been promised as suitable candidates for photonic materials and pigments, their fabrication processes have been limited to the small to medium-scale production of films. Here, by employing a substrate-free process, structurally coloured microparticles are produced via the confined self-assembly of a cholesteric cellulose nanocrystal (CNC) suspension within emulsified microdroplets. Upon drying, the droplets undergo multiple buckling events, which allow for greater contraction of the nanostructure than predicted for a spherical geometry. This buckling, combined with a solvent or thermal post-treatment, enables the production of dispersions of vibrant red, green, and blue cellulose photonic pigments. The hierarchical structure of these pigments enables the deposition of coatings with angular independent colour, offering a consistent visual appearance across a wide range of viewing angles.
description: 60 pages, 29 figures and 2 tables
Parameter inference with non-linear galaxy clustering: accounting for theoretical uncertainties
Creators: name: Knabenhans, Mischa
name: Brinckmann, Thejs
name: Stadel, Joachim
name: Schneider, Aurel
name: Teyssier, Romain
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We implement EuclidEmulator (version 1), an emulator for the non-linear correction of the matter power spectrum, into the MCMC forecasting code MontePython. We compare the performance of Halofit, HMCode, and EuclidEmulator1, both at the level of power spectrum prediction and at the level of posterior probability distributions of the cosmological parameters, for different cosmological models and different galaxy power spectrum wave number cut-offs. We confirm that the choice of the power spectrum predictor has a non-negligible effect on the computed sensitivities when doing cosmological parameter forecasting, even for a conservative wave number cut-off of $0.2\,h\,{\rm Mpc}^{-1}$. We find that EuclidEmulator1 is on average up to $17\%$ more sensitive to the cosmological parameters than the other two codes, with the most significant improvements being for the Hubble parameter of up to $42\%$ and the equation of state of dark energy of up to $26\%$, depending on the case. In addition, we point out that the choice of the power spectrum predictor contributes to the risk of computing a significantly biased mean cosmology when doing parameter estimations. For the four tested scenarios we find biases, averaged over the cosmological parameters, of between 0.5 and 2$σ$ (from below $1σ$ up to $6σ$ for individual parameters). This paper provides a proof of concept that this risk can be mitigated by taking a well-tailored theoretical uncertainty into account as this allows to reduce the bias by a factor of 2 to 5, depending on the case under consideration, while keeping posterior credibility contours small: the standard deviations are amplified by a factor of $\leq1.4$ in all cases.
description: 22 pages, 14 figures
Spaceborne laser bathymetry
Creators: name: Brassøe, Mathias
name: Jørgensen, Andreas Härstedt
name: Brauer, Peter
Publisher: name: Grøn Dyst 2010
Year: 2010

description: We want to measure water depth and chlorophyll content on coastal areas from satellite. This should be done using a green laser, which partly is transmitted on the sea surface and partly reflected. We want thereby to detect two return signals by help from a avalanche photodiode. From these two signals, we can determine the depth down to around 70 metres. We think our project should participate in “grøn dyst” because it would be very helpful information for a lot of marine biologist, and not least help ships to navigate through shallow water areas.
Emergence of Minkowski-Spacetime by Simple Deterministic Graph Rewriting
Creators: name: Leuenberger, Gabriel
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The causal set program as well as the Wolfram physics project leave open the problem of how a graph that is a (3+1)-dimensional Minkowski-spacetime according to its simple geodesic distances, could be generated solely from simple deterministic rules. This paper provides a solution by describing simple rules that characterize discrete Lorentz boosts between 4D lattice graphs, which combine further to form Wigner rotations that produce isotropy and lead to the emergence of the continuous Lorentz group and the (3+1)-dimensional Minkowski-spacetime. On such graphs, the speed of light, the proper time interval, as well as the proper length are all shown to be highly accurate.