cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Job Dispatching Policies for Queueing Systems with Unknown Service Rates
Creators: name: Choudhury, Tuhinangshu
name: Joshi, Gauri
name: Wang, Weina
name: Shakkottai, Sanjay
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In multi-server queueing systems where there is no central queue holding all incoming jobs, job dispatching policies are used to assign incoming jobs to the queue at one of the servers. Classic job dispatching policies such as join-the-shortest-queue and shortest expected delay assume that the service rates and queue lengths of the servers are known to the dispatcher. In this work, we tackle the problem of job dispatching without the knowledge of service rates and queue lengths, where the dispatcher can only obtain noisy estimates of the service rates by observing job departures. This problem presents a novel exploration-exploitation trade-off between sending jobs to all the servers to estimate their service rates, and exploiting the currently known fastest servers to minimize the expected queueing delay. We propose a bandit-based exploration policy that learns the service rates from observed job departures. Unlike the standard multi-armed bandit problem where only one out of a finite set of actions is optimal, here the optimal policy requires identifying the optimal fraction of incoming jobs to be sent to each server. We present a regret analysis and simulations to demonstrate the effectiveness of the proposed bandit-based exploration policy.
Radio Jets in Galaxies with Actively Accreting Black Holes: new insights from the SDSS
Creators: name: Kauffmann, Guinevere
name: Heckman, Timothy M.
name: Best, Philip N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The majority of nearby radio-loud AGN are found in massive, old elliptical galaxies with weak emission lines. At high redshifts,however, most known radio AGN have strong emission lines. In this paper, we examine a subset of radio AGN with emission lines selected from the Sloan Digital Sky Survey. The probability for a nearby radio AGN to have emission lines is a strongly decreasing function of galaxy mass and an increasing function of radio luminosity above 10^25 W/Hz. Emission line and radio luminosities are correlated, but with large dispersion. At a given radio power, AGN with small black holes have higher [OIII] luminosities (which we interpret as higher accretion rates) than AGN with big black holes. However, if we scale both radio and emission line luminosities by the black hole mass, we find a correlation between normalized radio power and accretion rate in Eddington units that is independent of black hole mass. There is also a clear correlation between normalized radio power and the age of the stellar population in the galaxy. Present-day AGN with the highest normalized radio powers are confined to galaxies with small black holes. High-redshift, high radio-luminosity AGN could be explained if big black holes were similarly active at earlier cosmic epochs. To investigate why only a small fraction of emission line AGN become radio loud, we create matched samples of radio-loud and radio-quiet AGN and compare their host galaxy properties and environments. The main difference lies in their environments; our local density estimates are a factor 2 larger around the radio-loud AGN. We propose a scenario in which radio-loud AGN with emission lines are located in galaxies where accretion of both cold and hot gas can occur simultaneously. (Abridged)
description: 18 figures, submitted to MNRAS
A literature review of measurement methods for building designs that enable higher-value resource recovery: the Circular Economy Potential framework
Creators: name: Sibenik, Goran
name: Sanchez, Benjamin
name: Stouffs, Rudi
name: Herthogs, Pieter
Publisher: name: ETH Zurich
Year: 2025
Subjects: Circular construction
Circular Economy
Circularity
Computational methods
Literature review
Configuration
Design strategy
Built Environment
Circular Economy Potential
Quantification method
info:eu-repo/classification/ddc/620
Engineering & allied operations

description: The construction sector is one of the largest contributors to the global use of raw materials and land, the production of waste, and the use of water and energy. Despite overall high consumption, some built structures are more sustainable than others; particularly, some contribute to the circular economy in construction, supporting repeated use of construction resources in various forms (as buildings, systems, components, or materials). It is a reasonable assumption that the way in which built structures have been configured (i.e. designed and put together) influences the potential to circulate resources embedded in construction. However, which configurations influence this potential, and which methods exist to measure this influence, remains unclear. This paper presents a review of existing quantitative methods to measure configurations that influence circular economy potential. We identified a significant level of fragmentation in this niche area of study. There is a broad range of design and construction strategies that aim to reduce waste or increase reuse, which are often interrelated and poorly defined. The measurement methods we set out to review are tied to such strategies rather than to resource recovery outcomes relevant to the circular economy. In addition, there are no general frameworks linking requirements enabling higher-value resource recovery in built assets (i.e. building, system, component, material) and measurement methods that quantify the extent to which a built asset supports those requirements. To address this fragmentation, our paper provides a structured view of the literature by proposing a Circular Economy Potential framework that aligns design strategies, tiers of built assets, and circular economy resource flows. We then identify gaps in the literature and discuss opportunities and limitations towards a more holistic approach to quantifying a built asset’s circular economy potential. This will serve as a foundation for developing a measurement method and tool for circular economy potential moving forward.
Code O-SUKI-N 3D: Upgraded Direct-Drive Fuel Target 3D Implosion Code in Heavy Ion Inertial Fusion
Creators: name: Nakamura, H.
name: Uchibori, K.
name: Kawata, S.
name: Karino, T.
name: Sato, R.
name: Ogoyski, A. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The Code O-SUKI-N 3D is an upgraded version of the 2D Code O-SUKI (Comput. Phys. Commun. 240, 83 (2019)). Code O-SUKI-N 3D is an integrated 3-dimensional (3D) simulation program system for fuel implosion, ignition and burning of a direct-drive nuclear-fusion pellet in heavy ion beam (HIB) inertial confinement fusion (HIF).The Code O-SUKI-N 3D consists of the three programs of Lagrangian fluid implosion program, data conversion program, and Euler fluid implosion, ignition and burning program. The Code O-SUKI-N 3D can also couple with the HIB illumination and energy deposition program of OK3 (Comput. Phys. Commun. 181, 1332 (2010)). The spherical target implosion 3D behavior is computed by the 3D Lagrangian fluid code until the time just before the void closure of the fuel implosion. After that, all the data by the Lagrangian implosion code are converted to the data for the 3D Eulerian code. In the 3D Euler code, the DT fuel compression at the stagnation, ignition and burning are computed. The Code O-SUKI-N 3D simulation system provides a capability to compute and to study the HIF target implosion dynamics.
description: 51 pages, 21 figures. Computer code is also available with an example output directory structure. arXiv admin note: substantial text overlap with arXiv:1812.07128
A Development of Local Government Supporting Officers through Four Objects of Sympathy (Sangahavatthu 4): A Case Study of Samutsakhon Province
Creators: name: Phrakhrusripariyatvitan (Maen Thongvijit)
Publisher: name: Naresuan University Graduate School
Year: 2019
Subjects: Development
Sangahavatthu 4
Local government supporting officers
Samutsakhon Province

description: Journal of Community Development Research (Humanities and Social Sciences), 12, 2, 73-81
Graph Balancing with Orientation Costs
Creators: name: Schwartz, Roy
name: Yeheskel, Ran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Motivated by the classic Generalized Assignment Problem, we consider the Graph Balancing problem in the presence of orientation costs: given an undirected multi-graph G = (V,E) equipped with edge weights and orientation costs on the edges, the goal is to find an orientation of the edges that minimizes both the maximum weight of edges oriented toward any vertex (makespan) and total orientation cost. We present a general framework for minimizing makespan in the presence of costs that allows us to: (1) achieve bicriteria approximations for the Graph Balancing problem that capture known previous results (Shmoys-Tardos [Math. Progrm. 93], Ebenlendr-Krcál- Sgall [Algorithmica 14], and Wang-Sitters [Inf. Process. Lett. 16]); and (2) achieve bicriteria approximations for extensions of the Graph Balancing problem that admit hyperedges and unrelated weights. Our framework is based on a remarkably simple rounding of a strengthened linear relaxation. We complement the above by presenting bicriteria lower bounds with respect to the linear programming relaxations we use that show that a loss in the total orientation cost is required if one aims for an approximation better than 2 in the makespan.
title: Hessen, Deutschland: LOEWE Schwerpunkt „Prähistorische Konfliktforschung“ – Projektteil: Befestigte Höhensiedlungen zwischen Taunus und Vogelsberg
Creators: name: Neumann, Daniel
name: Krause, Rüdiger
name: Hansen, Svend
Publisher: name: Deutsches Archäologisches Institut
Year: 2017

description: e-Forschungsberichte, Faszikel 3 (2016)
description: Within the research focus “Prehistoric Conflict Research” the Romano- Germanic Commission is conducting research on Bronze Age hillforts between Taunus and Vogelsberg. The first year’s work was devoted to the identification and evaluation of the Bronze Age occupation of already known hilltop sites. This objective was on the one hand achieved through the evaluation of existing archaeological data, which had not been analysed in detail before. On the other hand the approach was complemented by intensive surveys which aim to identify currently unknown sites through remote sensing and geophysical prospections.
IDENTIFICATION OF VESSEL TYPES WITH THEIR FISHING GEAR AND VOLUME OF FISHERIES PRODUCTION IN UPT PPP PONDOKDADAP, MALANG DISTRICT, EAST JAVA INDONESIA
Creators: name: AGUS TUMULYADI
name: ARIEF SETYANTO
name: SEFHANISSA PUSPA RETNO NIZERY
name: AULIA LANUDIA FATHAH
name: BERLANIA MAHARDIKA PUTRI
name: ANDIK ISDIANTO
Publisher: name: Zenodo
Year: 2023
Subjects: Coastal Fishing Port, Loading and Unloading Operations, Fishing Gear-Equipped Vessels, Number of Boats in Operation, Fish Production Volume.

description: Abstract

Pondokdadap Coastal Fishing Port (CFP), located in Malang Regency, is classified as a class C fishing port in East Java. Pondokdadap CFP is located in close proximity to Fisheries Management Area (WPP)-NRI 573, which covers Java and Nusa Tenggara in the South Indian Ocean. The objective of this study is to identify the quantity of fishing gear-equipped vessels that conducted loading and unloading operations at Pondokdadap CFP during the period from January to August 2023, as well as the production volume of fish caught. Qualitative and quantitative methodologies are used, applying primary and secondary data, respectively. Based on the results, the highest number of vessels in June indicates that there were 729 boats in operation, of which 152 purse seine boats and 577 boats were present, while January had the lowest number of boats in operation, with 76 boats, of which 61 purse seine boats and 15 boats. In line with the heaviest fish production volume in June at 1,863 tonnes, January recorded the lowest fish production volume at 266 tonnes. From January to August 2023, the highest total production volume for skipjack tuna was 2,627 tonnes, while the lowest total production volume for Chub Mackerel was 28 tonnes. Monthly variations in captures are determined by climatic variables such as sea waves. During the rainy season, fishing is uncommon due to the extremely high waves. In addition to the volatile nature of sea conditions, the distribution of fish also exerts an impact on catches. Among the thirteen species of fish that were captured, skipjack tuna predominated.
title: Volksrepublik China: Silk Road Fashion: Textile Flächenbildung und Verschlusstechniken
Creators: name: Hallgren, Moa
name: Beck, Ulrike
name: Wagner, Mayke
Publisher: name: Deutsches Archäologisches Institut
Year: 2017

description: e-Forschungsberichte, Faszikel 3 (2016)
description: The well-preserved outfit of a ca. 40 year old horse rider who was excavated at Yanghai burial site near Turfan, Autonomous Region of Uyghur Xinjiang, P.R. China, provides the unique opportunity to study 3000 year old textile structures and manufacturing techniques. By in-depth research and confirmation through experimental reconstruction of garments we discovered twill, kilim and a particular type of weft twining (Taniko) have been applied in producing the man’s trousers. We paid special attention to plaited bands which served to close the garments: waist belt and bands for fastening the boots. First tests showed that intertwined sprang might have been used. Our results corroborate that techniques were intentionally chosen to produce a certain functionally and aesthetically desired material quality and ornament.
Computer chess tactics and strategy
Creators: name: Szabo, Alexander
Publisher: name: University of British Columbia
Year: 2010

description: The design for a chess program is presented. The notions of tactics and strategy are used to define complementary ways of understanding any position. An association is made between tactics and brute force tree searching, and strategy and knowledge encoding. It is claimed that knowledge is best applied at the top of the tree as exemplified by TECH's positional presort rather than at the "terminal nodes using complex evaluation functions. The tactics part of the design is implemented by the program TECH3 which is described in terms of refinements to the minimax algorithm. The refinements are the α-β algorithm, the quiescence search, the transposition table, α-β move ordering, the search depth metric, the depth iterative α-β technique, and aspiration searching or windowing. The simple evaluation function used can also be considered as a refinement to minimax. TECH3's performance on the problems in Reinfeld (1958) is 274/300 which, modulo machine power, compares favourably with BELLE's. A comparison is also made with the knowledge based tactics program, PARADISE. Finally, the technology curve is developed as a tool for measuring the effectiveness of knowledge encoding (or strategy). In this respect NUCHESS is identified as the current best chess program.
Cosmological Constraints on Dissipative Models of Inflation
Creators: name: Hall, Lisa M. H.
name: Peiris, Hiranya V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: (Abridged) We study dissipative inflation in the regime where the dissipative term takes a specific form, Γ=Γ(ϕ), analyzing two models in the weak and strong dissipative regimes with a SUSY breaking potential. After developing intuition about the predictions from these models through analytic approximations, we compute the predicted cosmological observables through full numerical evolution of the equations of motion, relating the mass scale and scale of dissipation to the characteristic amplitude and shape of the primordial power spectrum. We then use Markov Chain Monte Carlo techniques to constrain a subset of the models with cosmological data from the cosmic microwave background (WMAP three-year data) and large scale structure (SDSS Luminous Red Galaxy power spectrum). We find that the posterior distributions of the dissipative parameters are highly non-Gaussian and their allowed ranges agree well with the expectations obtained using analytic approximations. In the weak regime, only the mass scale is tightly constrained; conversely, in the strong regime, only the dissipative coefficient is tightly constrained. A lower limit is seen on the inflation scale: a sub-Planckian inflaton is disfavoured by the data. In both weak and strong regimes, we reconstruct the limits on the primordial power spectrum and show that these models prefer a {\it red} spectrum, with no significant running of the index. We calculate the reheat temperature and show that the gravitino problem can be overcome with large dissipation, which in turn leads to large levels of non-Gaussianity: if dissipative inflation is to evade the gravitino problem, the predicted level of non-Gaussianity might be seen by the Planck satellite.
description: 14 pages, 9 figures, Accepted by JCAP without text changes, References added
How does the shape of gamma-ray bursts' pulses affect the duration distribution?
Creators: name: Tarnopolski, Mariusz
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) come in two types, short and long. The distribution of logarithmic durations of long GRBs is asymmetric rather than Gaussian. Such an asymmetry, when modelled with a mixture of Gaussian distributions, requires an introduction of an additional component, often associated with another class of GRBs. However, when modelled with inherently asymmetric distributions, there is no need for such a component. The cosmological dilation was already ruled out as a source of the asymmetry, hence its origin resides in the progenitors. GRB light curves (LCs) are usually well described by a series of fast-rise-exponential-decay pulses. A statistical analysis of ensembles of simulated LCs shows that the asymmetry is a natural consequence of the pulse shape and the multi-pulse character of the LCs.
description: 8 pages, 3+2 figures; accepted in MNRAS
title: Umm El-Qaab (Abydos), Ägypten: Untersuchungen zum Osiriskult in Abydos vom Alten Reich bis in die Spätantike
Creators: name: Effland, Ute
name: Effland, Andreas
Publisher: name: Deutsches Archäologisches Institut
Year: 2017

description: e-Forschungsberichte, Faszikel 3 (2016)
description: As the resting place of Egypt’s earliest pharaohs, Umm el-Qaab began its history almost 5000 years ago. The primary destination for countless pilgrims became the tomb of the Early Dynastic king Djer, which was considered to be the tomb of Osiris, the god of the dead, at least from the second millennium onwards. The remains of the Osiris-cult in Umm el-Qaab are numerous, but objects found were mostly broken into fragments. These finds cover a time span from the Old Kingdom until Late Antiquity, from ca. 2550 BC – ca. 540 AD. The aim of the seasons 2014 and 2015 was to continue the study and documentation work of these objects.
Cluster Merger Shock Constraints on Particle Acceleration and Nonthermal Pressure in the Intracluster Medium
Creators: name: Nakar, Ehud
name: Milosavljevic, Milos
name: Nagai, Daisuke
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: X-ray observations of galaxy cluster merger shocks can be used to constrain nonthermal processes in the intracluster medium (ICM). The presence of nonthermal pressure components in the ICM, as well as the shock acceleration of particles and their escape, all affect shock jump conditions in distinct ways. Therefore, these processes can be constrained using X-ray surface brightness and temperature maps of merger shock fronts. Here we use these observations to place constraints on particle acceleration efficiency in intermediate Mach number (M ~ 2-3) shocks and explore the potential to constrain the contribution of nonthermal components (e.g., cosmic rays, magnetic field, and turbulence) to ICM pressure in cluster outskirts. We model the hydrodynamic jump conditions in merger shocks discovered in the galaxy clusters A520 (M ~ 2) and 1E 0657-56 (M ~ 3) using a multifluid model comprised of a thermal plasma, a nonthermal plasma, and a magnetic field. Based on the published X-ray spectroscopic data alone, we find that the fractional contribution of cosmic rays accelerated in these shocks is lower than about 10% of the shock downstream pressure. Current observations do not constrain the fractional contribution of nonthermal components to the pressure of the undisturbed shock upstream. Future X-ray observations, however, have the potential to either detect particle acceleration in these shocks through its effect on the shock dynamics, or to place a lower limit on the nonthermal pressure contributions in the undisturbed ICM. We briefly discuss implications for models of particle acceleration in collisionless shocks and the estimates of galaxy cluster masses derived from X-ray and Sunyaev-Zel'dovich effect observations.
description: 10 pages, 4 figures, comments welcome
title: Tell El-Fara'In (Buro), Ägypten
Creators: name: Hartung, Ulrich
Publisher: name: Deutsches Archäologisches Institut
Year: 2017

description: e-Forschungsberichte, Faszikel 3 (2016)
description: After the investigation of Early Dynastic settlement remains which allowed us to trace the development of a probable royal estate with economic and administrative functions from the beginning of the first until the middle of the second dynasty, the continuation of work focused on late Predynastic building structures in order to understand the beginning of this process. Although not yet a comprehensive picture can be drawn, interesting features of the Naqada IIIB period shed light on the agricultural and household activities of the inhabitants. Among other things, an installation consisting of small parallel walls, hitherto widely unknown in Egypt, was probably used for the drying of agricultural products, such as grain or other fruits. A fire pit which contained several 80 cm long fire bars made of baked clay might have been connected to the production of beer. The so far reached oldest building structures date to the Naqada IIIA1 period and consist of light constructions, probably in wattle and daub technique. According to the associated pottery these housings are related to the latest phase of the chalcolithic Lower Egyptian Buto-Maadi culture, which also created the first occupation of Buto in the early 4th millennium BC, i.e. several hundreds of years before.
Translocation Dynamics with Attractive Nanopore-Polymer Interactions
Creators: name: Luo, Kaifu
name: Ala-Nissila, Tapio
name: Ying, See-Chen
name: Bhattacharya, Aniket
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using Langevin dynamics simulations, we investigate the influence of polymer-pore interactions on the dynamics of biopolymer translocation through nanopores. We find that an attractive interaction can significantly change the translocation dynamics. This can be understood by examining the three components of the total translocation time $τ\approx τ_1+τ_2+τ_3$ corresponding to the initial filling of the pore, transfer of polymer from the \textit{cis} side to the \textit{trans} side, and emptying of the pore, respectively. We find that the dynamics for the last process of emptying of the pore changes from non-activated to activated in nature as the strength of the attractive interaction increases, and $τ_3$ becomes the dominant contribution to the total translocation time for strong attraction. This leads to a new dependence of $τ$ as a function of driving force and chain length. Our results are in good agreement with recent experimental findings, and provide a possible explanation for the different scaling behavior observed in solid state nanopores {\it vs.} that for the natural $α$-hemolysin channel.
description: 8 pages, 11 figures
Frequency and Time Dependence of Linear Polarization in Turbulent Jets of Blazars
Creators: name: Marscher, Alan P.
name: Jorstad, Svetlana G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Time-variable polarization is an extremely valuable observational tool to probe the dynamical physical conditions of blazar jets. Since 2008, we have been monitoring the flux and linear polarization of a sample of gamma-ray bright blazars at optical frequencies. Some of the observations were performed on nightly or intra-night time-scales in four optical bands, providing information on the frequency and time dependence of the polarization. The observed behavior is similar to that found in simulations of turbulent plasma in a relativistic jet that contains a standing shock and/or a helical background magnetic field. Similar simulations predict the characteristics of X-ray synchrotron polarization of blazars that will be measured in the future by the Imaging X-ray Polarimetry Explorer (IXPE).
description: 2021, Special issue of Galaxies, "Polarimetry as a Probe of Magnetic Fields in AGN Jets", ed. M.F. Aller, J.L. Gomez, & E. Perlman
Spectral signature of mass outflow in Two Component Advective Flow Paradigm
Creators: name: Mondal, Santanu
name: Chakrabarti, Sandip K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Outflows are common in many astrophysical systems. In the Two Component Advective Flow ({\fontfamily{qcr}\selectfont TCAF}) paradigm which is essentially a generalized Bondi flow including rotation, viscosity and cooling effects, the outflow is originated from the hot, puffed up, post-shock region at the inner edge of the accretion disk. We consider this region to be the base of the jet carrying away matter with high velocity. In this paper, we study the spectral properties of black holes using {\fontfamily{qcr}\selectfont TCAF} which includes also a jet ({\fontfamily{qcr}\selectfont JeTCAF}) in the vertical direction of the disk plane. Soft photons from the Keplerian disk are up-scattered by the post-shock region as well as by the base of the jet and are emitted as hard radiation. We also include the bulk motion Comptonization effect by the diverging flow of jet. Our self-consistent accretion-ejection solution shows how the spectrum from the base of the jet varies with accretion rates, geometry of the flow and the collimation factor of the jet. We apply the solution to a jetted candidate GS\,1354-64 to estimate its mass outflow rate and the geometric configuration of the flow during 2015 outburst using {\it NuSTAR} observation. The estimated mass outflow to mass inflow rate is $0.12^{+0.02}_{-0.03}$. From the model fitted accretion rates, shock compression ratio and the energy spectral index, we identify the presence of hard and intermediate spectral states of the outburst. Our model fitted jet collimation factor ($f_{\rm col}$) is found to be $0.47^{+0.09}_{-0.09}$.
description: 12 pages, 13 figures, accepted for publication in ApJ
Dimetia brevipetiolata R. J. Wang 2020, sp. nov.
Creators: name: Zhang, Ying
name: Jiang, Guo-Bin
name: Wang, Rui-Jiang
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Dimetia
Dimetia brevipetiolata

description: Dimetia brevipetiolata R. J. Wang, sp. nov., 短ijkª4 Figs. 1 & 2.
Type: CHINA. Guangxi Zhuang Autonomous Region, Rong county, Shizhai Town, Duqiaoshan Scenic Area, riverside, long-styled flowers, 22º47’37.5” N, 110º36’18.4” E, ca. 100 m a.s.l., 02 April 2013, Rui-Jiang Wang & Shu-Jun Deng 2304 (holotype: IBSC0847225; isotypes: IBSC).
Dimetia brevipetiolata is similar to D. scandens with respect to its terete stem, lanceolate and thick papery leaves, indistinct secondary veins and compound-cymose inflorescences, but differs in the prostrate and herbal habit (vs. scandent and woody), subsessile leaf (vs. subsessile-5.0 mm long petioled), rounded leaf base (vs. acute to cuneate), nearly glabrous corolla (vs. densely villous adaxially) and indehiscent capsules (vs. dehiscent) (Table 2).
Description
Semi-prostrate herbs, 20–30 cm tall, glabrous. Stems terete, up to 3 mm in diameter, pubescent at young branches but glabrous with growing. Leaves opposite, subsessile; blade thick papery, glabrous, lanceolate or narrowly elliptic, apex acute or shortly acuminate, base rounded, 1.8–5.0 × 1.0– 2.5 cm; midrib depressed and pubescent adaxially, prominent and glabrous abaxially; secondary veins usually in 3 (–4) pairs, indistinct on both sides. Stipules interpetiolar, fused to petiole bases, triangular, apex acute, 1.2–1.3 × 0.2–0.4 mm. Inflorescence terminal, compound cyme; peduncles sparsely pubescent, 0.5–2 cm long, terete; bracts lanceolate, 0.5–1.8 × 0.2–0.5 mm; bractlets triangular, 0.4–0.9 × 0.1–0.3 mm. Flowers heterostylous; pedicels pubescent, subsessile or up to 3 mm long. Calyx sparsely pubescent abaxially, hypanthium obconic, 0.8–1.2 mm long; lobes 4, triangular, apex acute, 0.7–1.3 × 0.5–1 mm. Corolla white, tube 2.1–3.0 mm long, sparsely pubescent at throat; lobes 4, oblong-lanceolate, 1.1–2.7 × 0.8–1.5 mm. Stamens 4, anthers oblong-linear, ca. 0.6 mm long. Stigma bilobed, papillate, 0.5–0.9 mm long. Long-styled flowers: styles exserted, 3.5–4.5 mm long; stamens included, adnate to the middle of corolla tube; filaments short, ca. 0.2 mm long. Short-styled flowers: styles included, 1.4–2.0 mm long; stamens exserted, adnate to the throat of corolla tube; filaments ca. 2.3 mm long. Capsules ellipsoid to subglobose, or ovoid, 2.0–2.5 × 1.5–2.0 mm, glabrous, with persistent calyx limbs, protruded and indehiscent at apex. Seed numerous, minute, ca. 0.3 mm, deep brown, with angled and reticulate surface.
Phenology: Flowering occurs in March–April, fruiting in May–July.
description: Published as part of Zhang, Ying, Jiang, Guo-Bin & Wang, Rui-Jiang, 2020, Dimetia brevipetiolata (Spermacoceae: Rubiaceae): A new species from Guangxi, China, pp. 43-50 in Phytotaxa 428 (1) on pages 45-46, DOI: 10.11646/phytotaxa.428.1.4, http://zenodo.org/record/13875952
Optimized utilization of COMB3 reactive potentials in LAMMPS
Creators: name: Slapikas, Robert
name: Dabo, Ismaila
name: Sinnott, Susan B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An investigation to optimize the application of the third-generation charge optimized many-body (COMB3) interatomic potential and associated input parameters was carried out through the study of solid-liquid interactions in classical molecular dynamics (MD) simulations. The rates of these molecular interactions are understood though the wetting rates of water nano droplets on a bare copper (111) surface. Implementing the Langevin thermostat, the influence of simulation time step, the number of atoms in the system, the frequency at which charge equilibration is performed, and the temperature relaxation rate are all examined. The results indicate that time steps of 0.4 fs are possible when using longer relaxation times for the system temperature, which is almost double the typical time step used for reactive potentials. The use of the QEq charge equilibration allows for a fewer atomic layers to be used in the Cu slab. In addition, charge equilibrium schemes do not need to be performed every time step to ensure accurate charge transfer. Interestingly, the rate of wetting for the nanodroplets is dominantly dependent on the temperature relaxation time which are predicted to significantly change the viscosity of the water droplets. This work provides a pathway for optimizing simulations using the COMB3 reactive interatomic potential.
description: 16 pages, 6 figures
title: Kairo, Ägypten: Die Geschichte der Abteilung Kairo des DAI im Spannungsfeld deutscher politischer Interessen von 1881 bis 1966
Creators: name: Voss, Susanne
Publisher: name: Deutsches Archäologisches Institut
Year: 2017

description: e-Forschungsberichte, Faszikel 3 (2016)
description: The scientific-historical project about “The History of the German Institute in Cairo amidst political interests in the time from 1881 to 1966” is coming to its conclusion. The second volume, examining the end of the Weimar Republic, NS Period and Afterwar Period, visualizes both scientific-political and historical-epistemological lines of continuity in German egyptology, and at the DAI. A further focus involves the establishing of German-Egyptian cooperation in archaeology. The book is planned to appear in 2017.
title: Dahschur, Ägypten: Die Arbeiten der Jahre 2014 und 2015
Creators: name: Alexanian, Nicole
name: Arnold, Felix
name: Herbich, Tomasz
name: Müller, Sandra
Publisher: name: Deutsches Archäologisches Institut
Year: 2017

description: e-Forschungsberichte, Faszikel 3 (2016)
description: The necropolis of Dahshur is characterised by the building projects of King Snofru (about 2600 BC). He created a ritual landscape by altering considerable parts of the natural landscape and by building two giant pyramids – the Red Pyramid and the Bent Pyramid – several temples, cemeteries and settlements. In 2014 the magnetometric survey to the north and to the south of the valley temple of the Bent Pyramid was continued. Furthermore a so far unknown and unique element of landscape architecture was identified. Directly to the north of the valley temple of the Bent Pyramid a large garden which was enclosed by a massive mudbrick wall could be recorded. In spring 2015 magnetic surveys were undertaken in the area of the workmen’s barracks in the vicinity of the Red Pyramid and the area of the so-called valley temple of the Bent Pyramid. Drill sondages in the valley to the east of the Bent Pyramid confirmed the existence of an eastern harbor wall. Drill sondages showed furthermore that a transport way of limestone blocks, which was used in the New Kingdom when the valley temple was dismantled, continues down the whole wadi. Like in the years before, several new relief fragments from the valley temple were discovered within this limestone way. The excavation of a miniature mastaba to the north-west of the pyramid of Amenemhat II revealed a burial with a broad collar from faience beads. The tomb dates to the late Old Kingdom or First Intermediate Period.
title: Assuan, Ägypten Felsinschriften und Felsbilder der Region von Assuan
Creators: name: Borrmann, Linda
Publisher: name: Deutsches Archäologisches Institut
Year: 2017

description: e-Forschungsberichte, Faszikel 3 (2016)
description: One of the specific features of the Aswan region and its landscape is an exceptionally high number of rock inscriptions and rock images. Among them, chronological and spatial groups can be distinguished. During the season 2014/2015 the project’s fieldwork focused on two of these groups of inscriptions: Tabyat al-Sheikh, the southernmost section of the ancient road leading from the bay of Shellal to Aswan/Elephantine, and the island of Sehel, a former cult centre of the local goddess Anuket. Even though the epigraphic sites seem to differ significantly in terms of their topography and their historical uses, on closer observation similarities can be discovered. In both cases, a group of Pharaonic rock images are thought to be linked to the protection and control of sensitive border areas within the First Cataract region.
Dehninterventionen im Spannungsfeld historischer Entwicklung, ritualisierter Anwendung, Meisterlehre und Wissenschaft – Eine Bestandsanalyse
Creators: name: Kremer, Berthold
Publisher: name: KIT Scientific Publishing
Year: 2019
Subjects: Dehnmethoden
Muskellänge
Dysbalance
Beweglichkeit
Titin
Stretching
Range of Movement

description: Nahezu alle möglichen Effekte des Dehntrainings werden in Verbindung mit der Erweiterung des Bewegungsausmaßes operationalisiert. Dagegen werden Belastungsassoziierte Adaptationen selten diskutiert. Damit fehlen Differenzierungen für das Dehntraining unter salutogenen, therapeutischen oder leistungsphysiologischen Zielstellungen. In der vorliegenden Arbeit werden häufig gestellte Fragen zur Dehnmethodik im Sinne eines Faktenchecks im Abgleich mit relevanten Fachbereichen beantwortet.
title: Prohear, Kambodscha. Eine Benchmark für das frühe Goldhandwerk in Südostasien
Creators: name: Reinecke, Andreas
Publisher: name: Deutsches Archäologisches Institut
Year: 2014

description: e-Forschungsberichte, Faszikel 1 (2014)
description: In 2012 and 2013, the metal composition of early gold objects from 10 sites in Cambodia, Vietnam and Indonesia were analyzed by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry as part of a cooperation-project between the KAAK/DAI and the Curt-Engelhorn-Center for Archaeometry Mannheim. The basis of this project is a spectacular gold collection which was excavated between 2008 and 2011 in 32 of 76 burials at Prohear in Southeastern Cambodia. By their variety and the well documented burial context combined with archaeometrical data, the Prohear collection can be considered as a benchmark of early gold in Southeast Asia, both from the typological point of view and for the discussion of early exploited deposits and trade networks in this region. The results give such important suggestions for the archaeological interpretation of the early gold’s origin and the beginning of the goldsmith craft that we want to expand the sample series in the future completed by the analyzing of deposit samples in this region.
title: Trier, Deutschland. Porta Nigra
Creators: name: Wulf-Rheidt, Ulrike
Publisher: name: Deutsches Archäologisches Institut
Year: 2014

description: e-Forschungsberichte, Faszikel 1 (2014)
description: The Porta Nigra in Trier is the best preserved Roman town gate north of the Alps. It belongs to the rare antique large-scale buildings with a long usage and modification history, nonetheless, a major part of its antique substance was preserved. Despite its favorable conservation status and the importance of its architectural history, the Porta Nigra has so far not been satisfactorily studied. Since June 2012 preparations for an extensive basic renovation of this UNESCO World Heritage are conducted by the Rhineland-Palatinate state. This offered for the Division of Building Archaeology at the Head Office of the DAI the opportunity to execute an architectural survey in conformity with current scientific standards. This survey provides a reliable basis for an archaeological and architectural study of the entire complex for the first time.
title: Xinjang, China. Silk Road Fashion
Creators: name: Wagner, Mayke
Publisher: name: Deutsches Archäologisches Institut
Year: 2014

description: e-Forschungsberichte, Faszikel 1 (2014)
description: Under the title “Silk Road Fashion: Clothes as a means of communication in the 1st millennium BC, Eastern Central Asia”, a joint German-Chinese group of researchers are investigating garments excavated from modern Xinjiang, Uyghur Autonomous Region of Western China. Various disciplines are working together within contemporary state of knowledge concerning the quality of the material, means of processing and the use of resources. The practical intent of the documentation and research results lies in the development of sustainable techniques enabling the physical preservation of cultural relics in Xinjiang and its virtual accessibility worldwide. The Chinese Academy of Cultural Heritage is responsible for organizing the education and training of restorers involved in the search for and conservation of all material in China.
Fermion family number and the Z-Z$^{\prime}$ mixing in the 3-3-1 model with right-handed neutrinos
Creators: name: Cogollo, D.
name: Diniz, H.
name: Pires, C. A. de S.
name: da Silva, P. S. Rodrigues
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Theoretical consistency of the 3-3-1 model with right-handed neutrinos demands that the number of family of fermions be exactly equal to three. In this brief report we show that such theoretical requirement results in a clean and severe bound on the Z-Z$^{\prime}$ mixing angle: $-3,979\times 10^{-3}
description: Minor modification in the conclusions, some refs added, to appear at MPLA
Constrained dynamics of maximally entangled bipartite system
Creators: name: Bashir, Asma
name: Wasay, Muhammad Abdul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The classical and quantum dynamics of two particles constrained on $S^1$ is discussed via Dirac's approach. We show that when state is maximally entangled between two subsystems, the product of dispersion in the measurement reduces. We also quantify the upper bound on the external field $\vec{B}$ such that $\vec{B}\geq\vec{B}_{upper}$ implies no reduction in the product of dispersion pertaining to one subsystem. Further, we report on the cut-off value of the external field $\vec{B}_{cutoff}$, above which the bipartite entanglement is lost and there exists a direct relationship between uncertainty of the composite system and the external field. We note that, in this framework it is possible to tune the external field for entanglement/unentanglement of a bipartite system. Finally, we show that the additional terms arising in the quantum Hamiltonian, due to the requirement of Hermiticity of operators, produce a shift in the energy of the system.
description: 20 pages
Hole doping dependences of the magnetic penetration depth and vortex core size in YBa2Cu3Oy: Evidence for stripe correlations near 1/8 hole doping
Creators: name: Sonier, J. E.
name: Sabok-Sayr, S. A.
name: Callaghan, F. D.
name: Kaiser, C. V.
name: Pacradouni, V.
name: Brewer, J. H.
name: Stubbs, S. L.
name: Hardy, W. N.
name: Bonn, D. A.
name: Liang, R.
name: Atkinson, W. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on muon spin rotation measurements of the internal magnetic field distribution n(B) in the vortex solid phase of YBa2Cu3Oy (YBCO) single crystals, from which we have simultaneously determined the hole doping dependences of the in-plane Ginzburg-Landau (GL) length scales in the underdoped regime. We find that Tc has a sublinear dependence on 1/lambda_{ab}^2, where lambda_{ab} is the in-plane magnetic penetration depth in the extrapolated limits T -> 0 and H -> 0. The power coefficient of the sublinear dependence is close to that determined in severely underdoped YBCO thin films, indicating that the same relationship between Tc and the superfluid density is maintained throughout the underdoped regime. The in-plane GL coherence length (vortex core size) is found to increase with decreasing hole doping concentration, and exhibit a field dependence that is explained by proximity-induced superconductivity on the CuO chains. Both the magnetic penetration depth and the vortex core size are enhanced near 1/8 hole doping, supporting the belief by some that stripe correlations are a universal property of high-Tc cuprates.
description: 12 pages, 13 figures
Dynamical Scaling Exponents for Polymer Translocation through a Nanopore
Creators: name: Luo, Kaifu
name: Ollila, Santtu T. T.
name: Huopaniemi, Ilkka
name: Ala-Nissila, Tapio
name: Pomorski, Pawel
name: Karttunen, Mikko
name: Ying, See-Chen
name: Bhattacharya, Aniket
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We determine the scaling exponents of polymer translocation (PT) through a nanopore by extensive computer simulations of various microscopic models for chain lengths extending up to N=800 in some cases. We focus on the scaling of the average PT time $τ\sim N^α$ and the mean-square change of the PT coordinate $ \sim t^β$. We find $α=1+2ν$ and $β=2/α$ for unbiased PT in 2D and 3D. The relation $αβ=2$ holds for driven PT in 2D, with crossover from $α\approx 2ν$ for short chains to $α\approx 1+ν$ for long chains. This crossover is, however, absent in 3D where $α= 1.42 \pm 0.01$ and $αβ\approx 2.2$ for $N \approx 40-800$.
description: 4 pages, 4 figures, minor changes in the text, To be published in: Phys. Rev. E 78, xxxxxx(R) (2008)
title: Chimtou, Tunesien
Creators: name: von Rummel, Philipp
Publisher: name: Deutsches Archäologisches Institut
Year: 2014

description: e-Forschungsberichte, Faszikel 1 (2014)
description: Ancient Simitthus (today Chimtou, Tunisia), known for its important quarries of yellow Numidian marble, has been the object of archaeological research conducted jointly by the Tunisian National Heritage Institute and the German Archaeological Institute in Rome since 1965. This report presents a short overview on the recent activities at Chimtou in 2012 and 2013, which were primarily dedicated to publishing the results of the excavations conducted in the 1980s northeast of the forum of the Roman town and the ‚temple of Imperial cult‘ accompanied by measures of capacity building and site management.
Hyperconjugative Effect on the Electronic Wavefunctions of Ethanol
Creators: name: Chen, Xiangjun
name: Wu, Fang
name: Yan, Mi
name: Li, Hai-Bei
name: Tian*, Shan Xi
name: Shan, Xu
name: Wang, Kedong
name: Li, Zhongjun
name: Xu, Kezun
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Hyperconjugation is a basic conception of chemistry. Its straightforward effect is exhibited by the spatial delocalization characteristics of the electron density distributions or wavefunctions. Such effects on the electron wavefunctions of the highest-occupied molecular orbitals (HOMO) of two ethanol conformers are demonstrated with electron momentum spectroscopy together with natural bond orbital analyses, exhibiting the distinctly different symmetries of the HOMO wavefunctions in momentum space.
description: 3 Figures, 1 Scheme. Submitted
title: Baalbek, Libanon. Die Entwicklung der Stadt vom 8. Jahrtausend v. Chr. bis in die Gegenwart
title: Baalbek, Libanon. Die Entwicklung der Stadt vom 8. Jahrtausend v. Chr. bis in die Gegenwart
titleType: Subtitle
Creators: name: van Ess, Margarete
Publisher: name: Deutsches Archäologisches Institut
Year: 2014

description: e-Forschungsberichte, Faszikel 1 (2014)
description: Between 2001 and 2011 a comprehensive research project was carried out in Baalbek for the documentation of excavated but not yet published archaeological architectural remains and findings. It aimed at investigating the urban development of the town from its beginning until present. The results of this project are in preparation for publication now. In the year 2012 additional excavations were undertaken at the pre-Roman settlement. For the first time, detailed pottery sequences of the Middle Bronze Age and more exact datings are developed for the Northern Beqaa valley.