cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mineralization of the driftwood property, McConnell creek district, British Columbia
Creators: name: Panteleyev, Andrejs
Publisher: name: University of British Columbia
Year: 2011

description: The Driftwood Property is located in the southwest corner of the McConnell Creek map-area, about 87 miles north of Smithers, B. C. The property lies in a northwesterly trending belt of volcanic-sedimentary rocks that were mapped as Takla Group - Upper Division (Lord, 1948). The rocks are more correctly correlated with the Hazelton Group. They are bounded on the west and east by younger sedimentary formations. To the west is the Bowser Group and to the east, the Sustut Group. A Kastberg porphyry of Tertiary age has intruded the Takla Group rocks. Intrusion was into the epizonal environment and produced an irregular dyke-like body having a roof zone with anastamosing dykes and small roof pendants. The composition of the stock varies from granodiorite to quartz monzonite and alaskite. Differences in the stock are observed in textural, mineralogical, and chemical variations. Automorphism of the stock has resulted in propylitic alteration and contact metamorphism has resulted in an enveloping zone of hornfels. Temperatures at the intrusive contact as derived from heat flow calculations were probably a maximum of about 495 to 550°C and varied with respect to the type of rocks intruded.. A biotite hornfels of the albite-epidote hornfels facies has formed an aureole over 100 feet wide. A hornfels of the hornblende hornfels facies has been developed in narrow zones adjacent to parts of the intrusive contact. The porphyry is a metal-enriched intrusion in which some metallic grains formed in an accessory manner but most of the mineralization is epigenetic. The deposit has characteristics of both porphyry copper and quartz stockwork deposits with disseminated, fracture filling, vein, and replacement mineralization in the intrusive rock, hornfels, and skarn. The primary metallic minerals identified were: molybdenite, pyrite, pyrrhotite, chalcopyrite, arsenopyrite, sphalerite, galena, tetrahedrite, marcasite, aikinite, bournonite, and magnetite. Secondary or alteration minerals are rare and only minor goethite, maghemite, malachite, and ferrimolybdite were found. A five stage paragenesis is shown with at least three successive stages of veining. Sulphide deposition is believed to have started at temperatures in the order of 700°C and continued along with re-equilibriation of sulphides down to temperatures below 400°C and possibly 300°C for the sulphosalts.
Back to balls in billiards
Creators: name: Pène, Françoise
name: Saussol, Benoit
Publisher: name: arXiv
Year: 2009
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D50 (Primary) 37B20, 60F05 (Secondary)

description: We consider a billiard in the plane with periodic configuration of convex scatterers. This system is recurrent, in the sense that almost every orbit comes back arbitrarily close to the initial point. In this paper we study the time needed to get back in an r-ball about the initial point, in the phase space and also for the position, in the limit when r->0. We establish the existence of an almost sure convergence rate, and prove a convergence in distribution for the rescaled return times.
title: 28. September - 2. Oktober 2020
Creators: name: Völschow, Yvette
name: Warrelmann, Julia-Nadine
name: Brunner, Stefanie
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: digitales Portfolio
subject: ePortfolio
subject: Portfolio-Plugin
subject: Lehrer*innenbildung
subject: Kompetenzentwicklung
subject: Reflexivität
subject: Reflexionsförderung

description: In diesem Beitrag werden neben Gemeinsamkeiten und Unterschieden von digitalen gegenüber Papier-Portfolios in der Lehrer*innenbildung Einsatzmöglichkeiten, Herausforderungen und Chancen im Zusammenhang mit der Entwicklung und Nutzung eines ePortfolio-Plugins beschrieben und diskutiert. Zudem wird sich mit technischen und hochschuldidaktischen Komponenten der Implementierung befasst. Neben theoretischen Befunden werden hierfür eigene Erfahrungen aus dem von der Qualitätsoffensive Lehrerbildung (QLB) des BMBF geförderten Projekt BRIDGES der Universität Vechta herangezogen und Handlungsempfehlungen hieraus abgeleitet.
Environmental correlation effects on excitation energy transfer in photosynthetic light harvesting
Creators: name: Sarovar, Mohan
name: Cheng, Yuan-Chung
name: Whaley, K. Birgitta
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Several recent studies of energy transfer in photosynthetic light harvesting complexes have revealed a subtle interplay between coherent and decoherent dynamic contributions to the overall transfer efficiency in these open quantum systems. In this work we systematically investigate the impact of temporal and spatial correlations in environmental fluctuations on excitation transport in the Fenna-Matthews-Olson photosynthetic complex. We demonstrate that the exact nature of the correlations can have a large impact on the efficiency of light harvesting. In particular, we find that (i) spatial correlations can enhance coherences in the site basis while at the same time slowing transport, and (ii) the overall efficiency of transport is optimized at a finite temporal correlation that produces maximum overlap between the environmental power spectrum and the excitonic energy differences, which in turn results in enhanced driving of transitions between excitonic states.
description: 9 pages, 2 figures. New results in this version. Published version
title: 28. September - 2. Oktober 2020
Creators: name: Binder, Felix
name: Villmow, Johannes
name: Ulges, Adrian
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: smart autocompletion
subject: deep learning
subject: transformer networks

description: This paper investigates the use of transformer networks – which have recently become ubiquitous in natural language processing – for smart autocompletion on source code. Our model JavaBERT is based on a RoBERTa network, which we pretrain on 250 million lines of code and then adapt for method ranking, i.e. ranking an object's methods based on the code context. We suggest two alternative approaches, namely unsupervised probabilistic reasoning and supervised fine-tuning. The supervised variant proves more accurate, with a top-3 accuracy of up to 98%. We also show that the model – though trained on method calls' full contexts – is quite robust with respect to reducing context.
title: 28. September - 2. Oktober 2020
Creators: name: Rennoch, Axel
name: Willner, Alexander
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Edge Computing
subject: Industry 4.0
subject: Internet of Things
subject: Industrial IoT

description: Since Edge Computing (EC) became more important in industry and research several standardisation groups and initiatives are considering related technologies in their strategies and future roadmaps. The work includes the definition of reference architecture models, access interfaces but also addresses edge node autonomy and security aspects. This contribution introduces some basic concepts and common understanding of EC within selected standardisation groups and industrial initiatives. Additionally, technical viewpoints and topics are discussed that are relevant for various communities.
On the Connectivity of the Sylow Graph of a Finite Group
Creators: name: Russo, Francesco G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E32, 20D20, 20F17

description: The Sylow graph $Γ(G)$ of a finite group $G$ originated from recent investigations on the so--called $\mathbf{N}$--closed classes of groups. The connectivity of $Γ(G)$ was proved only few years ago, involving the classification of finite simple groups, and the structure of $G$ may be strongly restricted, once information on $Γ(G)$ are given. The first result of the present paper deals with a condition on $\mathbf{N}$--closed classes of groups. The second result deals with a computational criterion, related to the connectivity of $Γ(G)$.
description: 8 pp. with Appendix; Fundamental revisions have been done
A tight-binding potential for atomistic simulations of carbon interacting with transition metals: Application to the Ni-C system
Creators: name: Amara, Hakim
name: Roussel, Jean-Marc
name: Bichara, Christophe
name: Gaspard, Jean-Pierre
name: Ducastelle, François
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a tight-binding potential for transition metals, carbon, and transition metal carbides, which has been optimized through a systematic fitting procedure. A minimal basis, including the s, p electrons of carbon and the d electrons of the transition metal, is used to obtain a transferable tight-binding model of the carbon-carbon, metal-metal and metal-carbon interactions applicable to binary systems. The Ni-C system is more specifically discussed. The successful validation of the potential for different atomic configurations indicates a good transferability of the model and makes it a good choice for atomistic simulations sampling a large configuration space. This approach appears to be very efficient to describe interactions in systems containing carbon and transition metal elements.
title: 28. September - 2. Oktober 2020
Creators: name: Kutzner, Kristin
name: Schoormann, Thorsten
name: Knackstedt, Ralf
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Literary Criticism
subject: Culture
subject: Content Analysis
subject: Archetypes

description: Today, anyone can perform an opinion-expressing form of literary criticism by writing online book reviews. Sellers and publishers recognised the strategic potential of such reviews, for example, to increase sales. However, despite the popularity and recognised importance of book reviews, only little is known about the actual content in detail. Drawing on a category system and manually annotated reviews, this study explores the content composition of book reviews. We disclose frequently used content-related book review components and perform a cluster analysis, exploring which components often occur together. Our results support literary scholars in investigating the digital phenomenon of literary criticism and the study illustrates a sample Computational Humanities project which can be transferred to other research endeavours.
Investigation of continuity in joints between precast and "cast in place" reinforced concrete members
Creators: name: Kratz, Rolf D.
Publisher: name: University of British Columbia
Year: 2011

description: The investigation dealt mainly with the shear transfer capacity of a joint between a precast concrete column and a cast-in-place concrete beam. Four reinforced concrete frames, each consisting of two columns and two beams, were cast, assembled and tested in a special loading frame. To obtain a general pattern of failure mechanisms, a series of loads consisting of different ratios of moments, shears and axial forces were imposed on these frames. All recording of test data was done electronically in the form of punched tape to facilitate computer analysis. The investigation showed clearly that high values of shear transfer can be reached even under the most adverse load conditions.
How Cooperatives Use Credit Agencies to Meet Patron's Needs
Creators: name: Bailey, John M.
name: Pursell, Arthur H.
name: Engberg, Russell C.
name: Bailey, John M.
name: Pursell, Arthur H.
name: Engberg, Russell C.
Publisher: name: Unknown
Year: 1958
Subjects: Agribusiness
Agricultural Finance
Financial Economics

description: Excerpts from the report: In this report the Farmer Cooperative Service and Farm Credit Administration have undertaken to: (1) describe various credit arrangements now being used by cooperatives, (2) outline the general scope of these operations, and (3) provide management of farm supply cooperatives with information helpful in making a choice of alternative methods of meeting the credit needs of their patrons. This report deals primarily with ways some cooperatives are working with credit agencies to directly finance farmer-patrons desiring credit to purchase supplies and equipment. Also discussed are certain indirect ways local cooperatives obtain additional funds that can be used to extend credit to patrons or that release other funds for this purpose.
On the Number of Errors Correctable with Codes on Graphs
Creators: name: Barg, Alexander
name: Mazumdar, Arya
Publisher: name: arXiv
Year: 2009
Subjects: subject: Information Theory (cs.IT)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: We study ensembles of codes on graphs (generalized low-density parity-check, or LDPC codes) constructed from random graphs and fixed local constrained codes, and their extension to codes on hypergraphs. It is known that the average minimum distance of codes in these ensembles grows linearly with the code length. We show that these codes can correct a linearly growing number of errors under simple iterative decoding algorithms. In particular, we show that this property extends to codes constructed by parallel concatenation of Hamming codes and other codes with small minimum distance. Previously known results that proved this property for graph codes relied on graph expansion and required the choice of local codes with large distance relative to their length.
description: Published in the Ralf Koetter Memorial Issue of IEEE Transactions on Information Theory
title: 28. September - 2. Oktober 2020
Creators: name: Kahle, Reinhard
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Zahlentheorie
subject: Neue KI
subject: Diskrete Probleme
subject: RSA

description: Wir diskutieren, in welchem Maße zahlentheoretischen Fragestellungen von der neuen, statistikbasierten Künstlichen Intelligenz gelöst werden könnten und welche Auswirkungen das z.B. in der Kryptographie hätte. Dabei sehen wir die wesentliche Herausforderung darin, Methoden zu finden, die zu zeigen erlauben, was diese KI nicht leisten kann.
The Application of Group Theory to the Rubik’s Cube
Creators: name: AbdulMajid, Basel
Publisher: name: figshare
Year: 2023
Subjects: Group theory and generalisations
Pure mathematics not elsewhere classified
Distributed systems and algorithms
Data structures and algorithms

description: The Rubik's Cube is a beloved puzzle that has captivated enthusiasts for many years. It consists of a 3x3x3 cube with each face divided into nine smaller squares, and the objective is to arrange the cube so that each face is a single color. Solving the puzzle involves manipulating the cube through various rotations, presenting a challenging task. Group theory provides a powerful framework for analyzing the Rubik's Cube group and the algorithms used to solve the puzzle. In this paper, we delve into the structure of the Rubik's Cube group, which is one of the largest non-trivial groups in mathematics, with 43,252,003,274,489,856,000 elements. We explore permutation notation to represent cube configurations and introduce generators and subgroups within the Rubik's Cube group. Furthermore, we demonstrate how group theory can be applied to solve the Rubik's Cube by discussing Rubik's Cube algorithms, which are sequences of moves designed to solve the puzzle from any starting position. We present cube notation, a concise representation of cube moves, and discuss how group theory can analyze the effects and efficiency of different cube algorithms. Ultimately, applying group theory to the Rubik's Cube not only enhances our understanding of its group structure but also facilitates the development of more efficient solving algorithms. The Rubik's Cube serves as an engaging medium for exploring group theory and exemplifies the elegance and power of mathematics.
Centistoides ophthalmicus Belokobylskij 2018, comb. nov.
Creators: name: Belokobylskij, Sergey A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Centistoides
Centistoides ophthalmicus

description: Centistoides ophthalmicus (Granger, 1949), comb. nov.
(Figs 22–33)
 Centistes ophthalmicus Granger, 1949: 322; Shenefelt, 1969: 28; Yu et al., 2012.
 Material examined. 1 female (holotype), " ♀ ", "Musèum Paris EY10695", " Madagascar, Bekily, reg. sud de l'ile", "Musèum Paris, II [19]40, A. Seyrig", " Holotype ", " Centistes ophthalmicus Granger, 1949 ", " Centistoides ophthalmicus (Granger), det. Belokobylskij, 2015" (MNHN).
description: Published as part of Belokobylskij, Sergey A., 2018, Notioperilitus gen. nov., a new braconid genus (Hymenoptera: Braconidae: Euphorinae) from Australia, parasitoid of adult Morabinae (Orthoptera: Eumastacidae), with remarks on the generic placement of two Afrotropical euphorine species, pp. 298-310 in Zootaxa 4441 (2) on page 305, DOI: 10.11646/zootaxa.4441.2.6, http://zenodo.org/record/1301713
H.E.S.S. upper limit on the very high energy gamma-ray emission from the globular cluster 47 Tucanae
Creators: name: HESS Collaboration
name: Aharonian, F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observations of the globular cluster 47 Tucanae (NGC 104), which contains at least 23 millisecond pulsars, were performed with the H.E.S.S. telescope system. The observations lead to an upper limit of F(E>800 GeV) < 6.7e-13 / cm^2 s on the integral gamma-ray photon flux from 47 Tucanae. Considering millisecond pulsars as the unique potential source of gamma-rays in the globular cluster, constraints based on emission models are derived: on the magnetic field in the average pulsar nebula and on the conversion efficiency of spin-down power to gamma-ray photons or to relativistic leptons.
description: 5 pages, 2 figures, accepted for publication in A&A
BENEFICIAL EFFECTS OF DIETARY PROBIOTIC MIXTURE ON THE HEMATO-BIOCHEMICAL PARAMETERS OF NILE TILAPIA
Creators: name: FARHEEN AJMAL
name: SAJID ABDULLAH
name: NAUREEN
name: KAYNAT SAEED
name: AFSHEEN AJMAL
name: MUHAMMAD ISMAIL
name: MARYAM SALEEM
Publisher: name: Zenodo
Year: 2024
Subjects: Nutritional Supplements, Feed additives, Blood profile, Fish Health.

description: Abstract

Probiotics are useful bacteria in promoting the development, health status and survival of aquatic animals. This current experiment was focused to check the hemato-biochemical parameters of Nile Tilapia (Oreochromis niloticus) by using probiotic mixture. Fish fingerlings were collected and then acclimatized for 2 weeks in 70 L glass aquaria. The fish feed was prepared by mixing different probiotics which include Bacillus subtilis, B. megaterium, B. pumilus, B. licheniformis and Enterococcus faecalis in the basal diet and the trial was carried out for 90 days. Four treatments were designed for trial, Control T0 (without probiotic), T1 (2 g probiotic), T2 (4 g) and T3 (6 g). Each aquarium contained equal fish with three replicates and fed according to 5% of their body weight twice a day. Physico-chemical parameters of water were monitored. After each month in the trial, the hemato-biochemical parameters were measured. The value of RBCs, Hb, Hct and PLT increased in T2 with 4 g probiotic instead of other treatment groups. WBCs were increased in T3 group.  While in MCV, MCH and MCHC a significant decrease was observed. In biochemical parameters which include Total Protein, Albumin and Globulin, a significant increase in T3 was observed. The current investigation showed that probiotics improve the hematological and biochemical status of Nile Tilapia.
Constraints on the multi-TeV particle population in the Coma Galaxy Cluster with H.E.S.S. observations
Creators: name: The HESS Collaboration
name: Aharonian, F. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The H.E.S.S. (High Energy Stereoscopic System) telescopes observed Coma for ~8hr in a search for gamma-ray emission at energies >1TeV. The large 3.5deg FWHM field of view of H.E.S.S. is ideal for viewing a range of targets at various sizes including the Coma cluster core, the radio-relic (1253+275) and merger/infall (NGC 4839) regions to the southwest, and features greater than deg away. No evidence for point-like nor extended TeV gamma-ray emission was found and upper limits to the TeV flux F(E) for E>1, >5, and >10TeV were set for the Coma core and other regions. Converting these limits to an energy flux E^2F(E) the lowest or most constraining is the E>5TeV upper limit for the Coma core (0.2deg radius) at ~8Crab flux units or ~10^{-13}ph cm^{-2} s^{-1}. The upper limits for the Coma core were compared with a prediction for the gamma-ray emission from proton--proton interactions, the level of which ultimately scales with the mass of the Coma cluster. A direct constraint using our most stringent limit for E>5 TeV, on the total energy content in non-thermal protons with injection energy spectrum proportional to E^{-2.1} and spatial distribution following the thermal gas in the cluster, is found to be ~0.2 times the thermal energy, or ~10^{62}erg. The E>5 TeV gamma-ray threshold in this case corresponds to cosmic-ray proton energies >50TeV. Our upper limits rule out the most optimistic theoretical models for gamma ray emission from clusters and complement radio observations which constrain the cosmic ray content in clusters at significantly lower proton energies, subject to assumptions on the magnetic field strength.
description: 7 pages, 3 figures, accepted in Astronomy and Astrophysics
Coherence and control of quantum registers based on electronic spin in a nuclear spin bath
Creators: name: Cappellaro, P.
name: Jiang, L.
name: Hodges, J. S.
name: Lukin, M. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a protocol for the control of few-qubit registers comprising one electronic spin embedded in a nuclear spin bath. We show how to isolate a few proximal nuclear spins from the rest of the environment and use them as building blocks for a potentially scalable quantum information processor. We describe how coherent control techniques based on magnetic resonance methods can be adapted to these electronic-nuclear solid state spin systems, to provide not only efficient, high fidelity manipulation of the registers, but also decoupling from the spin bath. As an example, we analyze feasible performances and practical limitations in a realistic setting associated with nitrogen-vacancy centers in diamond.
Centistoides van Achterberg 1992
Creators: name: Belokobylskij, Sergey A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Centistoides

description: Key to species of the genus Centistoides
 1. First medial abscissa (1-SR+M) of fore wing sinuate; second medial abscissa (2-SR+M) long, 0.6 × as long as recurrent vein (Fig. 31). Discoidal (first discal) cell anteriorly narrowly sessile (Fig. 31). First transverse anal vein (1a) present (Fig. 3 1). Propodeum with distinct basomedian carina and with areola completely delineated by carinae (Figs 30, 32). Prescutellar depression (scutellar sulcus) distinctly sculptured (Fig. 30). Ovipositor sheath thick, but flattened on narrow flanges dorsally and apically, densely setose subapically (Fig. 33). Fore wing length 4.7 mm. Afrotropical region (Madagascar)................................................................. C. ophthalmicus (Granger, 1949), comb. nov. (Figs 22–33)
 - First medial abscissa (1-SR+M) of fore wing straight; second medial abscissa (2-SR+M) short, about 0.3 × as long as recurrent vein (Fig. 41). Discoidal (first discal) cell anteriorly broadly sessile (Fig. 41). First transverse anal vein (1a) absent (Fig. 41). Propodeum without basomedian carina, with areola incompletely delineated by carinae (Figs 39, 43). Prescutellar depression (scutellar sulcus) smooth (Fig. 39). Ovipositor sheath entirely flatted, truncate and glabrous apically (Figs 42, 44). Fore wing length 3.0 mm. Neotropical region (Suriname)............................ C. doesburgi Achterberg, 1992 (Figs 34–44)
description: Published as part of Belokobylskij, Sergey A., 2018, Notioperilitus gen. nov., a new braconid genus (Hymenoptera: Braconidae: Euphorinae) from Australia, parasitoid of adult Morabinae (Orthoptera: Eumastacidae), with remarks on the generic placement of two Afrotropical euphorine species, pp. 298-310 in Zootaxa 4441 (2) on page 305, DOI: 10.11646/zootaxa.4441.2.6, http://zenodo.org/record/1301713
ТИББИЁТ ОЛИЙ ТАЪЛИМ МУАСАССАЛАРИДА ТИББИЙ РАДИОЛОГИЯ ФАНИНИ ЎҚИТИШДА ПЕДАГОГИК МУЛОҚОТ ВОСИТАСИДА ТАНҚИДИЙ ОПЕРАТИВ ТАФАККУРНИ ЎСТИРИШ МЕТОДИКАСИ.
Creators: name: Шукурова, Севара
Publisher: name: Zenodo
Year: 2024

description: Тиббиётда радиология сохасидаги тиббий тасвирларнинг ўрни жуда ҳам катта аҳамиятга эгалиги. Беморга аниқ ташҳис қўйишда даволовчи врачга тиббий тасвирларнинг аниқлилиги ва тавсвирларнинг юқори сифатга эгалиги жуда ҳам муҳимлиги. Тиббий тасвирларни қайта ишлаш, сақлаш, шаклларини ўзгартириш, аналог шаклдан рақамли шаклга ўзгартиришлиги
title: Phytoplankton Community Responses to Interactions Between Light Intensity, Light Variations, and Phosphorus Supply
Creators: name: Marzetz, Vanessa
name: Spijkerman, Elly
name: Striebel, Maren
name: Wacker, Alexander
Publisher: name: Universität Potsdam
Year: 2021

description: In a changing world, phytoplankton communities face a large variety of challenges including altered light regimes. These alterations are caused by more pronounced stratification due to rising temperatures, enhanced eutrophication, and browning of lakes. Community responses toward these effects can emerge as alterations in physiology, biomass, biochemical composition, or diversity. In this study, we addressed the combined effects of changes in light and nutrient conditions on community responses. In particular, we investigated how light intensity and variability under two nutrient conditions influence (1) fast responses such as adjustments in photosynthesis, (2) intermediate responses such as pigment adaptation and (3) slow responses such as changes in community biomass and species composition. Therefore, we exposed communities consisting of five phytoplankton species belonging to different taxonomic groups to two constant and two variable light intensity treatments combined with two levels of phosphorus supply. The tested phytoplankton communities exhibited increased fast reactions of photosynthetic processes to light variability and light intensity. The adjustment of their light harvesting mechanisms via community pigment composition was not affected by light intensity, variability, or nutrient supply. However, pigment specific effects of light intensity, light variability, and nutrient supply on the proportion of the respective pigments were detected. Biomass was positively affected by higher light intensity and nutrient concentrations while the direction of the effect of variability was modulated by light intensity. Light variability had a negative impact on biomass at low, but a positive impact at high light intensity. The effects on community composition were species specific. Generally, the proportion of green algae was higher under high light intensity, whereas the cyanobacterium performed better under low light conditions. In addition to that, the diatom and the cryptophyte performed better with high nutrient supply while the green algae as well as the cyanobacterium performed better at low nutrient conditions. This shows that light intensity, light variability, and nutrient supply interactively affect communities. Furthermore, the responses are highly species and pigment specific, thus to clarify the effects of climate change a deeper understanding of the effects of light variability and species interactions within communities is important.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1109
Quantifying the Trophic Linkages of Antarctic Marine Predators
Creators: name: Walters, Andrea
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Ecosystem function
Conservation and biodiversity
Wildlife and habitat management

description: Understanding the diet and trophic relationships of animals in space and time, and its implications for population abundance and distributions, is a central problem in ecology. In the marine environment, the dietary study of marine mammal and avian species is impeded by the lack of information on their foraging strategies during the non-breeding period, when individuals migrate from common breeding areas to remote feeding grounds. Moreover, the spatial distribution of males, females and their offspring can differ considerably due to contrasting reproductive requirements and physiological constraints, respectively. Seasonal constraints therefore may influence the spatial distribution of abundant, migratory species, causing the food web structure, energy and nutrient flow within a given system to fluctuate accordingly.
Classification of four and six dimensional Drinfel'd superdoubles
Creators: name: Eghbali, A.
name: Rezaei-Aghdam, A.
name: Heidarpour, F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using adjoint representation we firstly classify two and three dimensional Lie super-bialgebras obtain from decomposable Lie superalgebras. In this way we complete the classification obtained by Eghbali et al., [J. Math. Phys. 51, 073503 (2010); e-print arXiv:0901.4471 [math-ph]]. Then we classify all four and six dimensional Drinfel'd superdoubles.
description: 28 pages, 7 tables
Determination of reservoir daily operation policies by stochastic dynamic programming
Creators: name: Tsou, C. Anthony
Publisher: name: University of British Columbia
Year: 2011

description: Reservoir operation policies are often formulated deterministically on the basis of critical flow hydrology. However, if a dynamic river daily flow forecast system is available for the whole season, the forecast information should be fully utilized in reservoir regulation. Given such a forecast system, two approaches to determining optimal daily operation policies for a single purpose flood control reservoir are suggested. Both approaches use stochastic dynamic programming: one involves the minimization of the expected value of flood damages, and the other involves minimizing the probability of occurrence of an undesirable event, which is a flood damage exceeding a certain amount. The probabilistic approach not only offers a set of alternative optimal daily operation policies, but also indicates the probabilities of being able to achieve the objectives, and thus it forms a basis for comparing and evaluating the alternative objectives.
Approximating the partition function of the ferromagnetic Potts model
Creators: name: Goldberg, Leslie Ann
name: Jerrum, Mark
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Complexity (cs.CC)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2; F.1.3; G.2.2

description: We provide evidence that it is computationally difficult to approximate the partition function of the ferromagnetic q-state Potts model when q>2. Specifically we show that the partition function is hard for the complexity class #RHPi_1 under approximation-preserving reducibility. Thus, it is as hard to approximate the partition function as it is to find approximate solutions to a wide range of counting problems, including that of determining the number of independent sets in a bipartite graph. Our proof exploits the first order phase transition of the "random cluster" model, which is a probability distribution on graphs that is closely related to the q-state Potts model.
description: Minor corrections
The motion of test bodies with microstructure in gauge gravity models
Creators: name: Puetzfeld, Dirk
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report on the explicit form of the equations of motion of pole-dipole particles for a very large class of gravitational theories. The non-Riemannian framework in which the equations are derived allows for a unified description of nearly all known gravitational theories. The propagation equations are obtained with the help of a multipole expansion method from the conservation laws that follow from Noether's theorem. The well-known propagation equations of general relativity, e.g., as given by Mathisson and Papapetrou, represent a special case in our general framework. Our formalism allows for a direct identification of the couplings between the matter currents and the gravitational field strengths in gauge gravity models. In particular, it illustrates the need for matter with microstructure for the detection of non-Riemannian spacetime geometries.
description: 6 pages, uses Acta Phys. Pol. LaTeX style
Marshiella madecassa Belokobylskij 2018, comb. nov.
Creators: name: Belokobylskij, Sergey A.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Marshiella
Marshiella madecassa

description: Marshiella madecassa (Granger, 1949), comb. nov.  (Figs 45–55)
 Microctonus madecassus Granger, 1949: 322; Shenefelt, 1969: 110.
 Perilitus (Perilitus) madecassus: Yu et al., 2012.
 Material examined. 1 female (lectotype, designated here), " ♀ ", "Musèum Paris EY10699", " Madagascar, Bekily, reg. sud de l'ile", "Musèum Paris, IX [19]36, A. Seyrig", " Lectotype ", " Microctonus madecassus Granger, 1949 ", " Marshiella madecassa (Granger), det. Belokobylskij, 2015" (MNHN). 1 male (paralectotype), " ♂ ", "Musèum Paris EY10700", " Madagascar, Bekily, reg. sud de l'ile", "Musèum Paris, IX [19]38, A. Seyrig", " Paralectotype ", " Microctonus madecassus Granger, 1949 ", " Marshiella madecassa (Granger), det. Belokobylskij, 2015" (MNHN).
 Remarks. This is first record of the genus Marshiella Shaw, 1985 in the Afrotropical region.
 According to the key to the Nearctic species of the genus Marshiella (Shaw, 1985; Shaw & Marsh, 2000), Marshiella madecassa (Granger, 1949), comb. nov. is very similar to M. pulvillicornis (Walley et MacKay, 1963) (Walley & MacKay, 1963), known only from Canada, by its small body size and small number of flagellar segments (16), but the Malagasy species distinctly differs from it by the long and distinctly apically narrowed scapus of the antenna (in lateral view), the different shape and without apico-medial excision of basal flagellar segments, long apical flagellar segments, short radial (marginal) cell and evenly curved second radial abscissa (3- SR+SR1) of fore wing, coarse and entirely rugulose precoxal suture of mesosoma, entirely and distinctly rugosereticulate propodeum, and mainly dark reddish-brown mesosoma.
 This species distinctly differs from the all Eastern Palaearctic and Oriental species of Marshiella (Chen & van Achterberg, 1997; Belokobylskij, 2000a, 2000b) by its strongly compressed and widened first to fourth flagellar segments (lateral view) (Fig. 50).
description: Published as part of Belokobylskij, Sergey A., 2018, Notioperilitus gen. nov., a new braconid genus (Hymenoptera: Braconidae: Euphorinae) from Australia, parasitoid of adult Morabinae (Orthoptera: Eumastacidae), with remarks on the generic placement of two Afrotropical euphorine species, pp. 298-310 in Zootaxa 4441 (2) on pages 305-309, DOI: 10.11646/zootaxa.4441.2.6, http://zenodo.org/record/1301713
On theta functions of order four
Creators: name: Kopeliovich, Yaacov
name: Pauly, Christian
name: Serman, Olivier
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We prove that the fourth powers of theta functions with even characteristics form a basis of the space of even theta functions of order four on a principally polarized Abelian variety without vanishing theta-null.
description: 6 pages, minor changes, references added
Amelioration of Little Hierarchy Problem in SU(4)_c x SU(2)_L x SU(2)_R
Creators: name: Gogoladze, Ilia
name: Rehman, Mansoor Ur
name: Shafi, Qaisar
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The little hierarchy problem encountered in the constrained minimal supersymmetric model (CMSSM) can be ameliorated in supersymmetric models based on the gauge symmetry G_{422} \equiv SU(4)_c x SU(2)_L x SU(2)_R. The standard assumption in CMSSM (and in SU(5) and SO(10)) of universal gaugino masses can be relaxed in G_{422}, and this leads to a significant improvement in the degree of fine tuning required to implement radiative electroweak breaking in the presence of a characteristic supersymmetry breaking scale of around a TeV. Examples of Higgs and sparticle mass spectra realized with 10% fine tuning are presented.
description: 14 pages, 5 figures, 2 tables
Supplementary document for Ultra-clean ternary Au/Ag/AgCl nanochains favoring cryogenic temperature-boosted broadband SERS ultrasensitive detection - 6518203.pdf
Creators: name: Xu, Linlin
name: Chen, Ming
name: Cui, Qingqiang
name: wang, chang
name: Zhang, Mengya
name: zheng, linqi
name: Li, Shuang
name: Zhang, Hua
name: Liang, Guangda
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Document for ultra-clean ternary Au/Ag/AgCl nanoclusters favoring cryogenic temperature-boosted broadband SERS ultrasensitive detection
A Passive Bistatic Range and Doppler Sensor using a Software Defined Radio with Autocorrelation Processing of ATSC Signals
Creators: name: Lang, David
Publisher: name: Zenodo
Year: 2020
Subjects: autocorrelation imaging, passive radar, antenna sidelobe cancellation, antenna sidelobe reduction, Doppler processing, SDR, software defined radio, passive sensing

description: A minimalist approach to moving target ranging and Doppler measurement using passive sensing is described in detail. To simplify the hardware, autocorrelation rather than cross–correlation of the reference and target signals is used. A fundamental purpose of this paper is to describe in detail a replicable passive ranging system.
Constraint Effective Potential of the Staggered Magnetization in an Antiferromagnet
Creators: name: Gerber, U.
name: Hofmann, C. P.
name: Jiang, F. -J.
name: Nyfeler, M.
name: Wiese, U. -J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We employ an improved estimator to calculate the constraint effective potential of the staggered magnetization in the spin $\tfrac{1}{2}$ quantum Heisenberg model using a loop-cluster algorithm. The first and second moment of the probability distribution of the staggered magnetization are in excellent agreement with the predictions of the systematic low-energy magnon effective field theory. We also compare the Monte Carlo data with the universal shape of the constraint effective potential of the staggered magnetization and study its approach to the convex effective potential in the infinite volume limit. In this way the higher-order low-energy parameter $k_0$ is determined from a fit to the numerical data.
Non linear diffusion and wave damped propagation : weak solutions and statistical turbulence behavior
Creators: name: Botelho, Luiz C L
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present mathematical proofs on the existence and uniqueness of weak solutions for a special class of non linear parabolic and hyperbolic equations of mathematical physics subject to colored noise (structured turbulence) as random- initial conditions
description: In order to protest against that stupid and ruthless decision of arxiv moderation in not allow me to submit unplished articles in arxiv 29
Gravity from Breaking of Local Lorentz Symmetry
Creators: name: Potting, Robertus
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a model of gravity based on spontaneous Lorentz symmetry breaking. We start from a model with spontaneously broken symmetries for a massless 2-tensor with a linear kinetic term and a nonderivative potential, which is shown to be equivalent to linearized general relativity, with the Nambu-Goldstone (NG) bosons playing the role of the gravitons. We apply a bootstrap procedure to the model based on the principle of consistent coupling to the total energy energy-momentum tensor. Demanding consistent application of the bootstrap to the potential term severely restricts the form of the latter. Nevertheless, suitable potentials exists that permit stable vacua. It is shown that the resulting model is equivalent, at low energy, to General Relativity in a fixed gauge.
description: Presented at DISCRETE '08, Symposium on Prospects in the Physics of Discrete Symmetries, 11-16 December 2008, IFIC, Valencia, Spain
Handbook on Major Regional Cooperatives Handling Farm Supplies, 1956 And 1957
Creators: name: Mather, J. Warren
name: Mather, J. Warren
Publisher: name: Unknown
Year: 1959
Subjects: subject: Agribusiness
subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report: Publication of this Handbook was begun at the outset of World War II. Officials of several regional cooperatives indicated the need for a publication which would point out to Federal and State agencies the importance of these cooperatives in providing farmers with essential production supplies during the war period. These Handbooks are also used by farmer cooperative leaders, educational agencies, and others. From them they have obtained a better understanding of the operations of regional cooperatives handling farm supplies and have followed trends and progress in their services to and benefits for farmers. Part I of this Handbook gives information on each of 21 major regional cooperatives handling farm supplies in the United States for their fiscal years ending in 1956 and 1957. Principal items considered for each of the 21 associations include: age of the associations, area of service, type and number of retail outlets, number of patrons served, membership requirements, voting provisions, number and terms of directors, number of employees, fiscal year endings, dollar volume of business, types of supplies handled, distribution of net margins, revolving capital, total cash distributions to patrons, and financial conditions of the associations for 1956 and 1957.
description: Includes Association reports for 21 major regional cooperatives: Cooperative Grange League Federation Exchange, Inc., Ithaca, N. Y.; Southern States Cooperative, Inc., Richmond, Va.; Consumers Cooperative Association, Kansas City, Mo.; Eastern States Farmers' Exchange, Inc., W. Springfield, Mass.; Farmers Union Central Exchange, Inc., St. Paul, Minn.; Illinois Farm Supply Company, Chicago; Indiana Farm Bureau Cooperative Association, Inc., Indianapolis; Midland Cooperatives, Inc., Minneapolis, Minn.; The Farm Bureau Cooperative Association, Inc., Columbus, Ohio; Farmers Cooperative Exchange, Inc., Raleigh, N. C.; Washington Co-operative Farmers Association, Seattle; M.F.A. Milling Company, Springfield, Mo.; Poultry Producers of Central California, San Leandro, Calif.; Pennsylvania Farm Bureau Cooperative Association, Harrisburg; Pacific Supply Cooperative, Walla Walla, Wash.; Farm Bureau Services, Inc., Lansing, Mich.; Central Cooperatives, Inc., Superior, Wis.; Tennessee Farmers Cooperative, La Vergne; Poultrymens Cooperative Association of Southern California, Los Angeles, Calif.; Arkansas Farmers Association, North Little Rock; Farmers Union State Exchange, Omaha, Nebr.
Modelling of Heavy Fuel Oil Spray Combustion using Continuous Thermodynamics
Creators: name: Garaniya, Vikrambhai
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Automotive combustion and fuel engineering
Marine engineering

description: Commercial liquid petroleum fuels are complex mixtures of various hydrocarbons. In multicomponent fuel modelling, these liquid fuels are represented typically with two components or up to ten discrete components. Even with ten components, there are limitations on the representation of real commercial fuels such as heavy fuel oil (HFO), which contains large numbers of hydrocarbons with a wide range of molecular weights and dissimilar structures. Continuous thermodynamics and pyrolysis chemical kinetics are used to model the behaviour of HFO in diesel spray combustion.
Orbit measures, random matrix theory and interlaced determinantal processes
Creators: name: Defosseux, Manon
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: A connection between representation of compact groups and some invariant ensembles of Hermitian matrices is described. We focus on two types of invariant ensembles which extend the Gaussian and the Laguerre Unitary ensembles. We study them using projections and convolutions of invariant probability measures on adjoint orbits of a compact Lie group. These measures are described by semiclassical approximation involving tensor and restriction mulltiplicities. We show that a large class of them are determinantal.
Evaluating the impact of a virtual reality intervention on nurse resilience
Creators: name: Brantley, Shannon
Publisher: name: No Publisher Supplied
Year: 2025

description: Purpose of the Project: This quality improvement (QI) project evaluates the impact of an eight-week VR intervention on stress and resilience among surgical oncology nurses at a tertiary academic medical center in New Jersey. Methods: A pre-implementation in-service education highlighting the benefits of VR for stress management and resilience was delivered to staff. During the implementation, nurses engaged in meditation sessions using the Meta Quest 3® headset via the Guided Meditation VR app, selecting five- or ten-minute immersive experiences. Participants provided demographic data, resilience, and stress scores, and feedback on VR usage through secure, anonymous Qualtrics® surveys. Results: 7 RNs used the VR intervention during the implementation period. Baseline data reveals moderate stress and resilience among the cohort. There was minimal change in resilience and a 2-point increase in stress during the intervention. Participants reported feeling calm and relaxed following the use of the VR device. Implications for Practice: The findings of this QI project are intended to guide the development of sustainable, evidence-based strategies for improving nurse resilience.