cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
"Comfortably seats 12"
Creators: name: Archaeology, Allen
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Two-dimensional body of maximum mean resistance
Creators: name: Gouveia, Paulo D. F.
name: Plakhov, Alexander
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 74F10; 65D15; 70E15; 49K30; 49Q10

description: A two-dimensional body, exhibiting a slight rotational movement, moves in a rarefied medium of particles which collide with it in a perfectly elastic way. In previously realized investigations by the first two authors, Plakhov & Gouveia (2007, Nonlinearity, 20), shapes of nonconvex bodies were sought which would maximize the braking force of the medium on their movement. Giving continuity to this study, new investigations have been undertaken which culminate in an outcome which represents a large qualitative advance relative to that which was achieved earlier. This result, now presented, consists of a two-dimensional shape which confers on the body a resistance which is very close to its theoretical supremum value. But its interest does not lie solely in the maximization of Newtonian resistance; on regarding its characteristics, other areas of application are seen to begin to appear which are thought to be capable of having great utility. The optimal shape which has been encountered resulted from numerical studies, thus it is the object of additional study of an analytical nature, where it proves some important properties which explain in great part its effectiveness.
description: Accepted (April 16, 2009) for publication in the journal "Applied Mathematics and Computation"
Bones, teeth, isotopes and the Festival of Archaeology
Creators: name: Madgwick, Richard
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Being Confused in a Historic Building
Creators: name: Archaeology, Allen
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Samarium Diiodide Acting on Acetone - Modeling Single Electron Transfer Energetics in Solution
Creators: name: Steiner, Luca
name: Achazi, Andreas Johannes
name: Vlaisavljevich, Bess
name: Miro, Pere
name: Paulus, Beate
name: Kelterer, Anne-Marie
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: computational chemistry
subject: lanthanoide chemistry
subject: density functional theory
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Samarium diiodide is a versatile single electron transfer (SET) agent with various applications in organic chemistry. Lewis structures regularly insinuate the existence of a ketyl radical when samarium diiodide binds a carbonyl group. The study presented here investigates this electron transfer by the means of computational chemistry. All electron CASPT2 calculations with the inclusion of scalar relativistic effects predict an endotherm electron transfer from samarium diiodide to acetone. Energies calculated with the PBE0-D3(BJ) functional and a small core pseudopotential are in good agreement with CASPT2. The calculations confirm the experimentally measured increase of the samarium diiodide reduction potential through the addition of hexamethylphosphoramide also known as HMPA.
From Housing to History & Archaeology
Creators: name: Iles, Sian
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Accelerated radiation polymerization of vinyl-divinyl comonomer systems
Creators: name: Micko, Michal
Publisher: name: University of British Columbia
Year: 2011

description: Gel-effect (Ge) acceleration in radiation polymerization of methyl methacrylate (MMA) -divinyl monomer (DVM) systems and properties of resulting polymer products have been investigated. Four methacrylate esters with variable molecular bridge length between the double bonds, i.e., ethylene glycol dimethacrylate (EGDMA), diethylene glycol dimethacrylate (DEGDMA), triethylene glycol dimethacrylate (TrEGDMA) and tetraethylene glycol dimethacry-late (TEGDMA), were used as DVM accelerators and crosslinking agents. The course of polymerization was followed by temperature (T)-time(t) polymerization exotherm curves. A new technique was developed to determine the "Gel-Effect Point" (GEP) and individual polymerization parameters associated with gelation in crosslinked network, i.e., polymerization rate coefficient (PRC), curing time (t[MAX]), overall curing rate (l/t[MAX]), and overall acceleration constant (K). The overall curing rate was found to be proportional to the volume concentration of crosslinking agent only up to 15 to 20% DVM in the system. Within this concentration interval the overall acceleration constants increased with molecular distance between DVM double bonds in the following order: EGDMA (1.1 x 10⁻³), DEGDMA (1.5 x 10⁻³), TrEGDMA (1.8 x 10⁻³), and TEGDMA (2.4 x 10⁻³ min⁻¹ conc.⁻¹). Half-time concentration values, i.e., concentration of divinyl monomer required to reduce the curing time to one-half of that for pure MMA, increased in reverse order. Numerically, half-time concentration values for TEGDMA, TrEGDMA, DEGDMA, and EGDMA were 3, 4, 5, and 7% respectively. The calculated overall acceleration constant allowed prediction and calculation of curing times for individual comonorner mixtures. The agreement between predicted and experimentally measured values was within 5% error. The derived empirical equation for prediction of curing time was also applicable to the heat-catalyst polymerization system. All divinyl monomers studied were found to be efficient crosslinking agents and improved the thermomechanical and strength properties of the resulting copolymers. The compression stress, strain and toughness exhibited well defined maxima within 5-10% of divinyl monomer in the mixture. Within this concentration interval both maximal acceleration and superior mechanical properties of copolymers were obtained. The numerical value of copolymer connection number (CN[sub co]) was found to be a useful structural parameter relating mechanical and thermomechanical properties with copolymer crosslinking density.
Teachers' strategies in using teaching and learning resources to facilitate students' English language learning : a focus in West Sumatran primary schools, Indonesia
Creators: name: Septy, Adzanil Prima
Publisher: name: University Of Tasmania
Year: 2023

description: This study examined Indonesian teachers' strategies for using English teaching and learning resources in the context of English as a foreign languagean elective subject-as taught in West Sumatran primary schools. The strategies reflected the important role of teachers in facilitating young students' English language learning. This study was considered against a background of critical concerns about teachers' competence, applicability of current teaching methods, and appropriateness of materials used for teaching English, which were central to debates in the context of the 1994 national curriculum system. To identify teachers' strategies, teachers' views on issues of socio-culture, curriculum, and their teaching experience were examined in relation to the ways in which they managed their classrooms. Their students' participation in classroom activities was also examined in relation to the effectiveness of the teachers' strategies. Examining these resource-use strategies could suggest a more comprehensive framework for understanding teachers' decision making, which incorporates contextual factors as well as traditional curriculum and teaching practices. It could also enhance primary school English programs. Study data were based on a questionnaire, interviews and classroom observation sessions, collected over two school terms from March to November 2001, in private and public primary schools in the city of Padang and surrounding cities in West Sumatra province, Indonesia. Of the 147 teachers who responded to the questionnaire, 14 also participated in a number of interviews and classroom observations. The study results indicated that teachers' strategies in teaching English and their use of teaching and learning resources to facilitate students' English language learning reflected the significance of particular aspects of socio-culture, curriculum, and teachers' teaching experiences. The importance of socio-culture was indicated through the teachers' consideration of the students' backgrounds, the contextual background, and their own background. Several curriculum components were emphasised within their teaching. Teachers' teaching experiences were reflected in their application to their resource use of their knowledge of and familiarity with the aspects identified. These aspects were reflected in the ways in which teachers managed classroom teaching and learning activities, as indicated through certain types of teacher talk, classroom interaction, and classroom organisation. The influence of these aspects was also indicated in students' responses to teachers' classroom management. Students' responses reflected their language development and acquisition process, their personalities in classroom interaction, and their learning strategies; and provided insights into how classroom activities and English teaching and learning resources were effectively managed.
The Cambridge archaeologist who started her own dig aged seven
Creators: name: Bonner, Laure M.
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Elastic theory for the vortex-lattice melting in iron-based high-Tc superconductors
Creators: name: Chen, Qing-Hu
name: Nie, Qing-Miao
name: Lv, Jian-Ping
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The vortex-lattice melting transitions in two typical iron-based high-Tc superconductor $Ba(Fe_{1-x}Co_{x})_{2}As_{2}$ (122-type) and$Nd(O_{1-x}F_{x})FeAs$ (1111-type) for magnetic fields both parallel and perpendicular to the anisotropy axis are studied within the elastic theory. Using the parameters from experiments, the vortex-lattice melting lines in the H-T diagram are located systematically by various groups of Lindemann numbers. It is observed that the theoretical result for the vortex melting on $Ba(Fe_{1-x}Co_{x})_{2}As_{2}$ for parallel fields agrees well the recent experimental data. The future experimental results for the vortex melting can be compared with the present theoretical prediction by tuning reasonable Lindemann numbers.
description: 10 pages, 5 figures
Reclamation of strip mine overburden through tree planting
Creators: name: Lowenberger, Frederick John
Publisher: name: University of British Columbia
Year: 2011

description: Kaiser Resources Limited is extracting coal from a major strip mining operation near Sparwood, B.C. In spite of the recognized economic benefits which accrue from this mine, serious consideration must he given to its potential deleterious effects. Problem areas include accelerated erosion, water pollution, danger of slides and a barren landscape in and around the mine. A reclamation program has been initiated to minimize these problems. It includes land-use planning, physical alteration of topography, revegetation and subsequent tending of reclaimed land. This thesis is related to the revegetation aspect of the above program in that it investigates the feasibility of establishing and growing coniferous trees on overburden. Development of plantations on these mine wastes fits well into the overall reclamation plan as seventy percent of the area to be reclaimed is best suited to growing trees. In addition, trees provide a suitable long-term means of minimizing erosion and pollution. Field work carried out to provide necessary data included the establishment of spring and fall replications of ten sample plots on mined sites around Michel and Natal. One plot was also set out on a small inactive area at the high elevation mine site on Harmer Ridge. The plots were situated and designed so that the effects of site, elevation, species choice, type of planting and time of planting on survival and growth could be studied. Planting was carried out during September 1970 and May 1971. The final collection of data took place during May 1972. Results indicate that trees are suitable for use in the revegetation of the residuals of the Kaiser mine. Analysis reveals spring planting survival to be much higher than that obtained from fall planting. Trees grown in the organic soil plug prototype container show better survival and growth than do bare-root seedlings or stock grown in plastic bullets. The optimum age of planting stock appears to be two years. Trees were successfully established over a wide range of elevations. Of the three species planted, Douglas-fir, lodgepole pine and Engelmann spruce, lodgepole pine did best between elevations of 3500 to 5000 feet. Above 5000 feet Engelmann spruce gave superior results. High mortality occurred on compacted sites and south facing slopes. Successful reforestation of compacted areas will require some form of site preparation to take place prior to planting. Plants other than trees, such as shrubs and grasses, should be used to regenerate south slopes. Successful plantation establishment will be dependent upon the control of both erosion and accidental damage. Proper planning at the highest management level will be required to minimize accidental damage while a variety of site preparation techniques will have to be utilized to control erosion. Further studies of reclamation problems are still required to ensure successful long-term results. Future research possibilities are therefore suggested.
Monte Miravete: 19th century miners-farmers communities at Murcia (Spain). An Art-Archaeology project.
Creators: name: Mármol, José A.
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Details of analyses and analytical procedures from Speleological and environmental history of Lida Ajer cave, western Sumatra
Creators: name: Louys, Julien
name: Duval, Mathieu
name: Price, Gilbert J.
name: Westaway, Kira
name: Zaim, Yahdi
name: Rizal, Yan
name: Aswan
name: Puspaningrum, Mika
name: Trihascaryo, Agus
name: Breitenbach, Sebastian F. M.
name: Kwiecien, Ola
name: Cai, Yanjun
name: Higgins, Penny
name: Albers, Paul
name: de Vos, John
name: Roberts, Patrick
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences

description: Raw data and methodology
Surveillance on A/H5N1 virus in domestic poultry and wild birds in Egypt
Creators: name: El-Zoghby, Elham F.
name: Aly, Mona M.
name: Nasef, Soad A.
name: Hassan, Mohamed K.
name: Arafa, Abdel-Satar
name: Selim, Abdullah A.
name: Kholousy, Shereen G.
name: Kilany, Walid H.
name: Safwat, Marwa
name: Abdelwhab, El-Sayed M.
name: Hafez Ahmed, Hafez Mohamed
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft

description: The endemic H5N1 high pathogenicity avian influenza virus (A/H5N1) in poultry in Egypt continues to cause heavy losses in poultry and poses a significant threat to human health. Here we describe results of A/H5N1 surveillance in domestic poultry in 2009 and wild birds in 2009-2010. Tracheal and cloacal swabs were collected from domestic poultry from 22024 commercial farms, 1435 backyards and 944 live bird markets (LBMs) as well as from 1297 wild birds representing 28 different types of migratory birds. Viral RNA was extracted from a mix of tracheal and cloacal swabs media. Matrix gene of avian influenza type A virus was detected using specific real-time reverse-transcription polymerase chain reaction (RT-qPCR) and positive samples were tested by RT- qPCR for simultaneous detection of the H5 and N1 genes. In this surveillance, A/H5N1 was detected from 0.1% (n = 23/) of examined commercial poultry farms, 10.5% (n = 151) of backyard birds and 11.4% (n = 108) of LBMs but no wild bird tested positive for A/H5N1. The virus was detected from domestic poultry year- round with higher incidence in the warmer months of summer and spring particularly in backyard birds. Outbreaks were recorded mostly in Lower Egypt where 95.7% (n = 22), 68.9% (n = 104) and 52.8% (n = 57) of positive commercial farms, backyards and LBMs were detected, respectively. Higher prevalence (56%, n = 85) was reported in backyards that had mixed chickens and waterfowl together in the same vicinity and LBMs that had waterfowl (76%, n = 82). Our findings indicated broad circulation of the endemic A/H5N1 among poultry in 2009 in Egypt. In addition, the epidemiology of A/H5N1 has changed over time with outbreaks occurring in the warmer months of the year. Backyard waterfowl may play a role as a reservoir and/or source of A/H5N1 particularly in LBMs. The virus has been established in poultry in the Nile Delta where major metropolitan areas, dense human population and poultry stocks are concentrated. Continuous surveillance, tracing the source of live birds in the markets and integration of multifaceted strategies and global collaboration are needed to control the spread of the virus in Egypt.
A day in the life of Badgers
Creators: name: Connolly, David
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Synthesis of multiarm star copolymers based on polyglycerol cores with polylactide arms and their application as nanocarriers
Creators: name: Adeli, Mohsen
name: Namazi, H.
name: Du, F.
name: Hönzke, S.
name: Hedtrich, S.
name: Keilitz, J.
name: Haag, R.
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: 500 Naturwissenschaften und Mathematik::540 Chemie

description: Hyperbranched polyglycerol (hPG) with two different molecular weights (hPG2400 and hPG8000) was used as a macroinitiator for the polymerization of lactide. Thereby, amphiphilic linear-dendritic multiarm star copolymers (MSCs) were prepared and investigated with regard to their ability to encapsulate and transport guest molecules. Various ratios of monomer to hydroxy functional end groups ([LA]/[OH]) were used for the preparation of linear-dendritic multiarm copolymers with different degrees of polymerization (DP), molecular weight, and arm multiplicity. At high molecular weights almost all of the hydroxy groups of hPG were reacted with the lactide monomer and the number of arms was equal to the number of hydroxy functional groups. The ability of the synthesized MSCs to encapsulate and transport small guest molecules was examined. The transport capacity (TC) of all nanocarriers under different conditions was investigated using the model dye Congo red as well as the model drug 5-aminosalicylic acid (5-ASA). With both hPG2400 and hPG8000 cores, the TC increased along with an increasing number and length of the arms. The dependence of the TC on the concentration of MSCs was also investigated and found to deteriorate with increasing polymer concentration. Finally the ability of the synthesized nanocarriers to penetrate into the skin and transport Nile red through this barrier was successfully investigated.
A symplectic subgroup of a pseudounitary group as a subset of Clifford algebra
Creators: name: Marchuk, Nikolai
name: Dyabirov, Roman
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15A66

description: Let Cl1(1,3) and Cl2(1,3) be the subsets of elements of the Clifford algebra Cl(1,3) of ranks 1 and 2 respectively. Recently it was proved that the subset Cl2(p,q)+iCl1(p,q) of the complex Clifford algebra can be considered as a Lie algebra. In this paper we prove that for p=1, q=3 the Lie algebra Cl2(p,q)+iCl1(p,q) is isomorphic to the well known matrix Lie algebra sp(4,R) of the symplectic Lie group Sp(4,R). Also we define the so called symplectic group of Clifford algebra and prove that this Lie group is isomprphic to the symplectic matrix group Sp(4,R).
description: 10 pages
Church towers and dusty documents: researching as an MA Archaeology student
Creators: name: Scott, Cait
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Computational study of microwave oscillations in absence of external field in nonstandard spin valves in the diffusive transport limit
Creators: name: Jaromirska, E.
name: Balaz, P.
name: Diaz, L. Lopez
name: Barnas, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An anomalous (inverse) spin accumulation in the nonmagnetic spacer may build up when the spin valve consists of magnetic films having different spin symmetries. This leads to wavy-like dependence of spin-transfer torque on the angle between magnetizations, as predicted by spin-dependent diffusive transport model, and also confirmed experimentally. Making use of these predictions, we have numerically studied the magnetization dynamics in presence of such a wavy-torque in Co(8 nm)/Cu(10 nm)/Py(8 nm) nanopillar, considering geometry with extended and etched Co layer. In both cases we specify conditions for the out-of-plane precession to appear in absence of external magnetic field and neglecting thermal fluctuations. We prove the assumption of wavy-like torque angular dependence to be fully consistent with experimental observations. We also show that some features reported experimentally, like nonlinear slope of frequency vs. current behavior, are beyond the applicability range of macrospin approximation and can be explained only by means of full micromagnetic analysis.
description: 9 pages, 11 figures
title: Distributed positioning
title: Superposition explained
titleType: Subtitle
Creators: name: Stone, Travis Raymond-Charlie
Publisher: name: Zenodo
Year: 2025

description: The Multiversal Overlapping Sequence Theory proposes that reality emerges from the recursive interaction of overlapping zonesâ€”mass density, temporal curvature, and field gradientsâ€”whose convergence forms a dynamic core where bifurcation, state shifts, and dimensional transitions occur, driving the evolution of space, time, and energy across all scales and universes.
Acineta persiensis Dovgal & Pesic 2007
Creators: name: Chаtterjee, Tаpаs
name: Dovgаl, Igor
name: Pešić, Vlаdimir
name: Zаwаl, Аndrzej
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Phyllopharyngea
Suctorida
Acinetidae
Acineta
Acineta persiensis

description: Acineta persiensis Dovgal & Pešić, 2007
 Records on hydrachnid mites: On Protzia sepasgosariani Pešić & Saboori, 2006 from Guik stream before the Guik dam near Birjand city, Khorrasan Province, in Iran (Dovgal & Pešić 2007, 2012); on Protzia invalvaris Piersig,1898 (Hydryphantidae) from Bistricastream, near the village Crkvine at Kolašin town, in Montenegro (Dovgal & Pešić 2007, 2012); on Nilotonia persica Pešić & Saboori, 2006 (Hydrachnidia, Аnisitsiellidae) from Rezvan spring, Jebal Barez Mts., Jiroft City, Temnoieh, Kerman Province in Iran (Dovgal & Pešić 2012).
description: Published as part of Chаtterjee, Tаpаs, Dovgаl, Igor, Pešić, Vlаdimir & Zаwаl, Аndrzej, 2018, A checklist of epibiont suctorian and peritrich ciliates (Ciliophora) on halacarid and hydrachnid mites (Acari: Halacaridae & Hydrachnidia), pp. 415-430 in Zootaxa 4457 (3) on page 420, DOI: 10.11646/zootaxa.4457.3.4, http://zenodo.org/record/1457915
Archeologia w centrum miasta
Creators: name: Pawleta, Michal
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
La consulta previa en territorios indígenas en el ordenamiento jurídico colombiano, como criterio específico de atribución de responsabilidad patrimonial del Estado
Creators: name: Lozano Olave, John Fernando
Publisher: name: Universidad Externado de Colombia
Year: 2024
Subjects: subject: Integración social - Aspectos socioeconómicos
subject: Derecho civil - Aspectos jurídicos
subject: Daños y perjuicios - Legislación
subject: Medidas de reparación
subject: Consulta previa
subject: Comunidades Indígenas
subject: Derecho fundamental

description: No realizar la consulta previa en las comunidades indígenas y grupos étnicos ha conllevado una crisis jurídica que suscita el detrimento de los preceptos culturales, de cosmovisión y delimita la integridad social y económica de las colectividades donde se desarrollan proyectos que afectan a estos grupos. Por este motivo, y desde el proceso reparatorio y compensador de los daños, en el presente estudio se evalúa cómo la consulta previa puede llegar a considerar e incorporarse como elemento trascendental en la reparación de los daños sufridos por las comunidades afectadas por la omisión del Estado.
description: Not carrying out prior consultation in indigenous communities and ethnic groups has led to a legal crisis that causes the detriment of cultural precepts and worldview and delimits the social and economic integrity of the communities where projects that affect these groups are developed. For this reason, and from the reparative and compensatory process of damages, this study evaluates the way in which prior consultation can be considered and incorporated as a transcendental element in the repair of the damages suffered by the communities affected by the omission of the State
Transparent metal electrodes from ordered nanosphere arrays
Creators: name: Morfa, Anthony J.
name: Akinoglu, Eser Metin
name: Subbiah, Jegadesan
name: Giersig, Michael
name: Mulvaney, Paul
Publisher: name: Freie Universität Berlin
Year: 2013
Subjects: subject: 500 Naturwissenschaften und Mathematik::530 Physik

description: We show that perforated metal electrode arrays, fabricated using nanosphere lithography, provide a viable alternative to conductive metal oxides as transparent electrode materials. The inter-aperture spacing is tuned by varying etching times in an oxygen plasma, and the effect of inter-aperture “wire” thickness on the optical and electronic properties of perforated silver films is shown. Optical transmission is limited by reflection and surface plasmons, and for these results do not exceed 73%. Electrical sheet resistance is shown to be as low as 3 Ω ◻−1 for thermally evaporated silver films. The performance of organic photovoltaic devices comprised of a P3HT:PCBM bulk heterojunction deposited onto perforated metal arrays is shown to be limited by optical transmission, and a simple model is presented to overcome these limitations.
Finger Lakes Explorations at Keuka Lake
Creators: name: Carroll, John
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Studies of the rabbit population on Macquarie Island.
Creators: name: Skira, Irynej Joseph
Publisher: name: University Of Tasmania
Year: 2023

description: Studies were made of the ecology of rabbits on Macquarie Island, the predation on rabbits by skuas and the distribution and extent of spread of the European rabbit flea. The numbe:r of rabbits on Macquarie Island estimated from visual counts was in the order of 50 OOO. Most rabbits were present on 35% of the island, of which 7% had >15 rabbits per 2 ha. 'I'he ma.in coat colours were agouti (83%) and black (17%). The rabbits moulted twice a year. Females were heavier than males during the summer when breeding occurred, while males were heavier during winter. The mean weight of liver, kidneys and spleen in female rabbits was greatest in the summer and adrenal glands were heaviest in the winter. In male rabbits the kidneys and spleen were heaviest in the smamer, the liver and adrenal glands heaviest in winter. The breeding season extended from late August 1974 to mid-March 1975 Skua territories were widely distributed on the island but no pairs that nested in the bleak upland regions searched,reared chicks. Eighty pairs formed territories in the areas of > 15 rabbits per 2 ha compared with 30 pairs in areas with 6-15 rabbits per 2 ha. Predation on rabbits increased only during the first month of the skua chicks growth thereafter remaining constant with 98% of rabbits taken under 0. 74 kg. Only 28% of all the rabbits sampled carried European rabbit fleas. Infestation levels fell when rabbits were not breeding and did not increase until two months after rabbits began to breed again. Dispersal of fleas from areas where they were released was very slow. In the one hundred years that the rabbit has been on Macquarie Island it has adapted to the environment until it is now found in many localities where suitable habitat is present, and its numbers vary locally in abundance from sparse to numerous. and both sexes showed an annual cycle in development and regression of the gonads. Sixty-four per cent of natality occurred by mid-December; female rabbits in their first year of breeding bearing the greatest number of kittens. The sex ratio of male to female was 1:0.84. Adult rabbits predominated in the population in the 1973-74 summer while in the 1974-75 summer the population was composed equally of adults and rabbits 12 months old or less. Mortality occurred mainly amongst rabbits less than 4 months old and was considered to be mainly due to effects of wet burrows and predation by feral cats and skuas.
Tripartite quantum state mapping and discontinuous entanglement transfer in a cavity QED open system
Creators: name: Bina, Matteo
name: Casagrande, Federico
name: Genoni, Marco G.
name: Lulli, Alfredo
name: Paris, Matteo G. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe the transfer of quantum information and entanglement from three flying (radiation) to three localized (atomic) qubits via cavity modes resonantly coupled to the atoms, in the presence of a common reservoir. Upon addressing the full dynamics of the resulting nine-qubit open system, we find that once the cavities are fed, fidelity and transferred entanglement are optimal, while their peak values exponentially decrease due to dissipative processes. The external radiation is then turned off and quantum correlations oscillate between atomic and cavity qubits. For a class of mixtures of W and GHZ input states we deal with a discontinuous exchange of entanglement among the subsystems, facing the still open problem of entanglement sudden death and birth in a multipartite system.
description: 7 pages, 6 figures, 2 tables
A Day in the Life of Historic Buildings Consultant, Garry Campion
Creators: name: Cotswold Archaeology
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
title: The Reliability and Validity of an Instrument Designed to Measure Attitudes Toward the Elderly
Creators: name: Schultz, Jane
Publisher: name: Utah State University
Year: 1989

description: An attitude is a mental state that influences the way an individual responds to relevant objects and situations. Attitudes toward the elderly have a potential impact on all Americans, as the population is growing older. These attitudes constitute an important area of study because their nature is unclear and their impact extensive. The Kogan Attitudes Toward Old People Scale (OP) was examined to establish reliability and validity estimates. A questionnaire, consisting of this scale and four others, was administered to a sample of adults. Factor analysis of the OP revealed two factors, which were somewhat ambiguous. Internal consistency estimates for these factors and the total OP ranged from .72 to .92. Validity estimates were in the expected direction and ranged from -.13 to .36. Gender, age, education level, and degree of tolerance for others immerged as predictive variables for reported attitudes toward the elderly. It was concluded that the use of the OP is of questionable utility. If one must use it, the total OP score or only the items from Factors 1 and 2 should be utilized, as long as the discussed weaknesses, such as the sampling and validation procedures, are taken into account.
On the Computation of Matrices of Traces and Radicals of Ideals
Creators: name: Janovitz-Freireich, Itnuit
name: Mourrain, Bernard
name: Ronayi, Lajos
name: Szanto, Agnes
Publisher: name: arXiv
Year: 2009
Subjects: subject: Symbolic Computation (cs.SC)
subject: Commutative Algebra (math.AC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Let $f_1,...,f_s \in \mathbb{K}[x_1,...,x_m]$ be a system of polynomials generating a zero-dimensional ideal $\I$, where $\mathbb{K}$ is an arbitrary algebraically closed field. We study the computation of "matrices of traces" for the factor algebra $\A := \CC[x_1, ..., x_m]/ \I$, i.e. matrices with entries which are trace functions of the roots of $\I$. Such matrices of traces in turn allow us to compute a system of multiplication matrices $\{M_{x_i}|i=1,...,m\}$ of the radical $\sqrt{\I}$. We first propose a method using Macaulay type resultant matrices of $f_1,...,f_s$ and a polynomial $J$ to compute moment matrices, and in particular matrices of traces for $\A$. Here $J$ is a polynomial generalizing the Jacobian. We prove bounds on the degrees needed for the Macaulay matrix in the case when $\I$ has finitely many projective roots in $\mathbb{P}^m_\CC$. We also extend previous results which work only for the case where $\A$ is Gorenstein to the non-Gorenstein case. The second proposed method uses Bezoutian matrices to compute matrices of traces of $\A$. Here we need the assumption that $s=m$ and $f_1,...,f_m$ define an affine complete intersection. This second method also works if we have higher dimensional components at infinity. A new explicit description of the generators of $\sqrt{\I}$ are given in terms of Bezoutians.
That grey area between museums and archaeology
Creators: name: MacQuarrie, Anna
Publisher: name: Archaeology Data Service
Year: 2017

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.