cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dark energy, integrated Sachs-Wolfe effect and large-scale magnetic fields
Creators: name: Giovannini, Massimo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The impact of large-scale magnetic fields on the interplay between the ordinary and integrated Sachs-Wolfe effects is investigated in the presence of a fluctuating dark energy component. The modified initial conditions of the Einstein-Boltzmann hierarchy allow for the simultaneous inclusion of dark energy perturbations and of large-scale magnetic fields. The temperature and polarization angular power spectra are compared with the results obtained in the magnetized version of the (minimal) concordance model. Purported compensation effects arising at large scales are specifically investigated. The fluctuating dark energy component modifies, in a computable manner, the shapes of the 1- and 2-$σ$ contours in the parameter space of the magnetized background. The allowed spectral indices and magnetic field intensities turn out to be slightly larger than those determined in the framework of the magnetized concordance model where the dark energy fluctuations are absent.
description: 41 pages, 10 figures
Determination of exogenous prohibited flavour compounds added in coffee using gas chromatography triple quadrupole tandem massspectrometry and gas chromatography/combustion/isotope ratio mass spectrometry
Creators: name: Wang, Yujiao
name: Liu, Tong
name: Chen, Fengming
name: Wang, Xiujuan
name: Zhang, Feng
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: An analytical method based on gas chromatography coupled to triple quadrupole tandem mass spectrometry (GC–MS/MS) was developed for the simultaneous determination of exogenous prohibited flavour compounds in coffee samples. In addition, gas chromatography/combustion/isotope ratio mass spectrometry (GC/C/IRMS) was developed to determine the origin of the founded prohibited flavour compound, N-methylpyrrole-2-carboxaldehyde (NMPCA). The good selectivity and sensitivity achieved in multiple reactions monitoring (MRM) mode allowed satisfactory confirmation and quantitation for the flavour compounds. The limits of detection (LODs) and limits of quantitation (LOQs) of these compounds were in the range of 0.0005–5.0 µg/kg and 0.002–16.0 µg/kg, respectively. The coffee samples were extracted with simultaneous distillation extraction (SDE) and NMPCA was analysed on a GC/C/IRMS system. The δ13C values of endogenous NMPCA in coffee beans were within a range of −35.0‰ to −31.1‰, whereas exogenous NMPCA was the range from −27.9‰ to −23.9‰. The validation results revealed that the GC-MS/MS method was sensitive and reliable, and the origin of NMPCA can be distinguished by GC/C/IRMS. Finally, this method was successfully applied to coffee samples analysis and NMPCA was found in coffee samples.
Development of tools for the sustainable management of genetics in polyploid Pacific oysters (Crassostrea gigas)
Creators: name: Miller, PA
Publisher: name: University Of Tasmania
Year: 2023

description: The commercial production of triploid Pacific oysters (Crassostrea gigas) has grown rapidly in recent years. There is now a push to move away from commonly used mass spawning techniques towards single pair cross selective breeding programs in an effort to improve growth and disease resistance within the triploid product. Before this can be achieved, there is a need to understand some of the fundamental genetics behind polyploid production and to develop molecular tools and techniques that can be used in establishing breeding programs. This dissertation developed and utilised suites of microsatellite markers to determine the baseline diversity of native, naturalised and cultured diploid oysters. It was found that the high diversity within naturalised oysters may provide a genetic reservoir for future breeding programs. The same microsatellite markers were used to determine diversity and pedigree assignment within a mass spawned tetraploid population across two successive generations. The first generation showed a high diversity, which significantly decreased in the second generation produced via mass spawning. This was most likely due to a low number of effective broodstock and skewed parental contributions and highlights the benefits of using single pair crosses over mass spawning to control inbreeding. A method for assigning pedigrees in triploids, produced by crossing diploids with tetraploids, was developed. This method will allow the pedigree of strongly performing triploids to be traced back so that the same or closely related broodstock can be used in single pair cross selection programs to produce future generations. To determine the long term stability of tetraploid oysters, the aneuploid frequency was analysed using flow cytometry across three generations. No difference was observed which suggests that either aneuploidy is occurring at a lower rate than previously predicted or that aneuploid oysters are being removed from the system through hatchery grading or early mortality. Flow cytometry is not sensitive enough to detect small scale chromosome loss. Hence, fluorescent in situ hybridisation (FISH) using microsatellite markers was trialled. This was unsuccessful due to the inconsistency of the markers. The molecular tools, techniques and results described within this dissertation will aid in the development of single pair cross selective breeding programs for the improvement of triploid oysters.
title: Challenges in applying machine learning models for hydrological inference: a case study for flooding events across Germany
Creators: name: Schmidt, Lennart
name: Heße, Falk
name: Attinger, Sabine
name: Kumar, Rohini
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 550 Geowissenschaften

description: Machine learning (ML) algorithms are being increasingly used in Earth and Environmental modeling studies owing to the ever-increasing availability of diverse data sets and computational resources as well as advancement in ML algorithms. Despite advances in their predictive accuracy, the usefulness of ML algorithms for inference remains elusive. In this study, we employ two popular ML algorithms, artificial neural networks and random forest, to analyze a large data set of flood events across Germany with the goals to analyze their predictive accuracy and their usability to provide insights to hydrologic system functioning. The results of the ML algorithms are contrasted against a parametric approach based on multiple linear regression. For analysis, we employ a model-agnostic framework named Permuted Feature Importance to derive the influence of models' predictors. This allows us to compare the results of different algorithms for the first time in the context of hydrology. Our main findings are that (1) the ML models achieve higher prediction accuracy than linear regression, (2) the results reflect basic hydrological principles, but (3) further inference is hindered by the heterogeneity of results across algorithms. Thus, we conclude that the problem of equifinality as known from classical hydrological modeling also exists for ML and severely hampers its potential for inference. To account for the observed problems, we propose that when employing ML for inference, this should be made by using multiple algorithms and multiple methods, of which the latter should be embedded in a cross-validation routine.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1193
Más Allá del Reloj: Tiempo de Consulta y Satisfacción del Paciente
Creators: name: Brito Moreno, Daina Amelia
name: Ramos Chico, Camila Alejandra
name: Mena Ayala, María Belén
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Active learning

description: Esta carta al editor analiza los hallazgos del artículo "Correlación entre tiempo consulta y satisfacción del paciente en primer nivel de atención" publicado en la revista del Instituto Mexicano del Seguro Social. Mediante una reflexión crítica, que aborda la relevancia del tiempo de consulta en la experiencia del paciente, destacando la relevancia de la atención médica sobre la duración de la consulta que puede influir en la satisfacción del paciente. La carta invita a considerar una visión más integral del tiempo médico-paciente, proponiendo estrategias que optimicen tanto la eficiencia como la calidad percibida del servicio.
Revisiting Tests of Lorentz Invariance with Gamma-ray Bursts: Effects of Intrinsic Lags
Creators: name: Vardanyan, Valeri
name: Takhistov, Volodymyr
name: Ata, Metin
name: Murase, Kohta
Publisher: name: arXiv
Year: 2022
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: FOS: Physical sciences

description: Due to their cosmological distances high-energy astrophysical sources allow for unprecedented tests of fundamental physics. Gamma-ray bursts (GRBs) comprise among the most sensitive laboratories for exploring the violation of the central physics principle of Lorentz invariance (LIV), by exploiting spectral time lag of arriving photons. It has been believed that GRB spectral lags are inherently related with their luminosities, and intrinsic source contributions, which remain poorly understood, could significantly impact the LIV results. Using a combined sample of 49 long and short GRBs observed by the Swift telescope, we perform a stacked spectral lag search for LIV effects. We set novel limits on LIV, including limits on quadratic effects, and systematically explore for the first time the impacts of the intrinsic GRB lag-luminosity relation. We find that source contributions can strongly impact resulting LIV tests, modifying their limits by up to a factor of few. We discuss constraints coming from GRB 221009A.
description: 8 pages, 2 figures; published version
title: Adiabatic Invariants Calculations for Cluster Mission: A Long-Term Product for Radiation Belts Studies
Creators: name: Smirnov, Artem G.
name: Kronberg, Elena A.
name: Daly, Patrick W.
name: Aseev, Nikita A.
name: Shprits, Yuri Y.
name: Kellerman, Adam C.
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 550 Geowissenschaften

description: The Cluster mission has produced a large data set of electron flux measurements in the Earth's magnetosphere since its launch in late 2000. Electron fluxes are measured using Research with Adaptive Particle Imaging Detector (RAPID)/Imaging Electron Spectrometer (IES) detector as a function of energy, pitch angle, spacecraft position, and time. However, no adiabatic invariants have been calculated for Cluster so far. In this paper we present a step-by-step guide to calculations of adiabatic invariants and conversion of the electron flux to phase space density (PSD) in these coordinates. The electron flux is measured in two RAPID/IES energy channels providing pitch angle distribution at energies 39.2-50.5 and 68.1-94.5 keV in nominal mode since 2004. A fitting method allows to expand the conversion of the differential fluxes to the range from 40 to 150 keV. Best data coverage for phase space density in adiabatic invariant coordinates can be obtained for values of second adiabatic invariant, K, similar to 10(2), and values of the first adiabatic invariant mu in the range approximate to 5-20 MeV/G. Furthermore, we describe the production of a new data product "LSTAR," equivalent to the third adiabatic invariant, available through the Cluster Science Archive for years 2001-2018 with 1-min resolution. The produced data set adds to the availability of observations in Earth's radiation belts region and can be used for long-term statistical purposes.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1192
Gravity from thermodynamics: optimal transport and negative effective dimensions
Creators: name: De Luca, G. Bruno
name: De Ponti, Nicolò
name: Mondino, Andrea
name: Tomasiello, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove an equivalence between the classical equations of motion governing vacuum gravity compactifications (and more general warped-product spacetimes) and a concavity property of entropy under time evolution. This is obtained by linking the theory of optimal transport to the Raychaudhuri equation in the internal space, where the warp factor introduces effective notions of curvature and (negative) internal dimension. When the Reduced Energy Condition is satisfied, concavity can be characterized in terms of the cosmological constant $Λ$; as a consequence, the masses of the spin-two Kaluza-Klein fields obey bounds in terms of $Λ$ alone. We show that some Cheeger bounds on the KK spectrum hold even without assuming synthetic Ricci lower bounds, in the large class of infinitesimally Hilbertian metric measure spaces, which includes D-brane and O-plane singularities. As an application, we show how some approximate string theory solutions in the literature achieve scale separation, and we construct a new explicit parametrically scale-separated AdS solution of M-theory supported by Casimir energy.
description: 57 pages + 4 appendices, 4 figures. v2: expanded introduction and comments on the Casimir vacuum. v3: clarification on the agreement of the Casimir vacuum with conjectured bounds
title: Predicting location probabilities of drivers to improved dispatch decisions of transportation network companies based on trajectory data
Creators: name: Richly, Keven
name: Brauer, Janos
name: Schlosser, Rainer
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 000 Informatik, Informationswissenschaft, allgemeine Werke

description: The demand for peer-to-peer ridesharing services increased over the last years rapidly. To cost-efficiently dispatch orders and communicate accurate pick-up times is challenging as the current location of each available driver is not exactly known since observed locations can be outdated for several seconds. The developed trajectory visualization tool enables transportation network companies to analyze dispatch processes and determine the causes of unexpected delays. As dispatching algorithms are based on the accuracy of arrival time predictions, we account for factors like noise, sample rate, technical and economic limitations as well as the duration of the entire process as they have an impact on the accuracy of spatio-temporal data. To improve dispatching strategies, we propose a prediction approach that provides a probability distribution for a driver’s future locations based on patterns observed in past trajectories. We demonstrate the capabilities of our prediction results to ( i) avoid critical delays, (ii) to estimate waiting times with higher confidence, and (iii) to enable risk considerations in dispatching strategies.
description: Zweitveröffentlichungen der Universität Potsdam : Reihe der Digital Engineering Fakultät; 009
ASK ME ABOUT THE TERRAMARA: WHEN (AND WHERE) AN ARCHAEOLOGIST BECOMES A PR
Creators: name: Osti, Giulia
Publisher: name: Archaeology Data Service
Year: 2015

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.
Fabrication method of a low-loss plasmonic waveguide containing both plasmonic-friendly and plasmonic-unfriendly metals
Creators: name: Zayets, Vadym
name: Serdeha, Iryna
name: Grygoruk, Valerii
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Fabrication technology, which allows a substantial decrease of the plasmonic propagation loss for both plasmon-friendly metals like Au, Cu or Al and plasmon-unfriendly metals like Co, Fe or Cr, has been developed and experimentally demonstrated. Optimization of the optical confinement is used to reduce the propagation loss below 1 dB per plasmonic device.
description: 7 pages, 10 figures
Medieval Tuscany to conquer the EU
Creators: name: Hodges, Richard
Publisher: name: Archaeology Data Service
Year: 2015

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.
Casimir interaction between plane and spherical metallic surfaces
Creators: name: Canaguier-Durand, Antoine
name: Neto, Paulo A. Maia
name: Cavero-Pelaez, Ines
name: Lambrecht, Astrid
name: Reynaud, Serge
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give an exact series expansion of the Casimir force between plane and spherical metallic surfaces in the non trivial situation where the sphere radius $R$, the plane-sphere distance $L$ and the plasma wavelength $λ_¶$ have arbitrary relative values. We then present numerical evaluation of this expansion for not too small values of $L/R$. For metallic nanospheres where $R, L$ and $λ_¶$ have comparable values, we interpret our results in terms of a correlation between the effects of geometry beyond the proximity force approximation (PFA) and of finite reflectivity due to material properties. We also discuss the interest of our results for the current Casimir experiments performed with spheres of large radius $R\gg L$.
description: 4 pages, new presentation (highlighting the novelty of the results) and added references. To appear in Physical Review Letters
Fast, noise-free atomic optical memory with 35% end-to-end efficiency
Creators: name: Davidson, Omri
name: Yogev, Ohad
name: Poem, Eilon
name: Firstenberg, Ofer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Coherent optical memories will likely play an important role in future quantum communication networks. Among the different platforms, memories based on ladder-type orbital transitions in atomic gasses offer high bandwidth ($>100$ MHz), continuous (on-demand) readout, and low-noise operation. Here we report on an upgraded setup of our previously-reported fast ladder memory, with improved efficiency and lifetime, and reduced noise. The upgrade employs a stronger control field, wider signal beam, reduced atomic density, higher optical depth, annular optical-pumping beam, and weak dressing of an auxiliary orbital to counteract residual Doppler-broadening. For a 2 ns-long pulse, we demonstrate 53% internal efficiency, 35% end-to-end efficiency, $3\times 10^{-5}$ noise photons per pulse, and a $1/e$ lifetime of 108 ns. This combination of performances is a record for continuous-readout memories.
An analysis of the subfloor cavity climate in a residential building
Creators: name: Sequeira, SA
Publisher: name: University Of Tasmania
Year: 2023

description: As roof and wall insulation have become standard practice in residential building design and construction, the conditions in the subfloor cavity have gained relative importance to a building's thermal performance. However, the modelling of the subfloor cavity is considered a weak point in many building thermal performance software programs. Recent research suggests that improvements to the subfloor model are crucial to improving the accuracy of Australia's benchmark building thermal performance program, AccuRate. Another recent study finds fault with the criteria that established the current standard for subfloor ventilation design, questioning the subfloor's ability to maintain the subfloor humidity below the design limit. These findings suggest the need for a review of the subfloor thermal model. As very little measured data on Australian subfloor conditions exist, this research seeks to explore the subfloor conditions experimentally. This research investigates the subfloor cavity climate of a small residential scale test cell for a period of over one year. Energy and mass transfer relationships linking subfloor ventilation, ground evaporation and the subfloor and outdoor climate conditions are explored theoretically and using observed data. The observed data are compared to design limits, previous research findings and AccuRate's predictions. The relative humidity in the subfloor is found to exceed the ventilation design limit. The conditions that lead to mould or decay are complex and when compared to these limits the data are on the threshold of conditions thought to be conducive to deterioration. The subfloor climate conditions are found to vary based on time elapsed since construction. Between one year and five years after construction, the subfloor air temperature, specific humidity and ground moisture evaporation rate are observed to drop considerably. Though the relative humidity remains constant over this time, both the energy and moisture in the subfloor are reduced, changing the role of the subfloor vents. Whilst initially the net effect of the vents is to nearly always decrease both the moisture and energy of the subfloor air, six years after construction the vents are shown to increase moisture 24% of the time, and energy 35% of the time. This shift in subfloor climate over time is found to affect the apparent accuracy of the AccuRate subfloor model. Previous research, based on data collected one year after construction, had shown that the observed subfloor temperature was several degrees above AccuRate's predicted subfloor temperature. However, when considering data six years after construction, this study finds that the observed and AccuRate temperatures are more closely aligned. These results emphasize the importance of building thermal performance research to consider the time elapsed since building construction, as ground temperature and moisture stabilization have a noticeable effect on the subfloor climate.
Enhancing West Yorkshire Historic Environment Record
Creators: name: Buck, Rosalind
Publisher: name: Archaeology Data Service
Year: 2015

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.
Information centres : an essay in power
Creators: name: Gilbert, David Edmund
Publisher: name: University of British Columbia
Year: 2012

description: The dual concepts of 'power' and 'equality' are central to discussions of social policy In the Western World. The distribution of knowledge for the common good, with its attendant uses, is one of the controlling factors in both the conceptualisation and operation of 'power’. This essay begins with a discussion of two theories concerning the relationship of man with society, and follows with two different 'ideals' of human relationships which writers in Britain tend to support. These 'Ideals1 are transferrable to the Canadian context as Is partially illustrated by the brief discussion of 'the cultural paradigm'. The paradigm is of importance to the remainder of the essay since the experience of British, United States and Canadian Information Centres seems to be influenced by society's concept of 'human well-being'. Thus the pattern of development of Information Centres is seen in the totality of 'social policy' rather than as one part in isolation. It is emphasised that the essay Is a personal statement of the writer, all omissions and generalisations are 'his; and hence it is not to be considered as a definitive, total statement on the subject.
The Search for Day-nik, Blackhawk s Last Camp
Creators: name: Howell, Ryan J.
Publisher: name: Archaeology Data Service
Year: 2015

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.
Exploring Diverse Adolescents & Youth Education Across the Displacement Linear: Education in Emergencies (EiE) Experiences and Colonial Entanglements
Creators: name: Oddy, Jessica
Publisher: name: University of East London
Year: 2023

description: This thesis explores diverse, forcibly displaced youths'experiences of education in emergencies (EiE) responses in South Sudan, the UK and Jordan and how colonial legacies continue to permeate the types and modes of education programmes that are designed, funded, and implemented. This thesis draws on the Black radical tradition (BRT) as a conceptual and methodological framing. In addition, connecting EiE and BRT scholarship enables new discourses that counter hegemonic and ahistorical narratives of aid to surface and instead illustrate power asymmetries, coloniality, and conflict-affected communities' cultural wealth in challenging limited educational opportunities. This study intends to contribute to critical EiE scholarship, highlighting the heterogeneity of forcibly displaced youth and challenging universalising discourses that erase the EiE experiences of racialised and othered identities. To explore the research inquiry, I use a multi-sited, multi-scalar research approach to co- design a digital storytelling action research praxis with 60 young people in South Sudan, Jordan and the UK, alongside 26 key informant interviews with EiE practitioners to address the research areas. The key findings highlighted that intersectionality matters in EIE, in that forcibly displaced young people's educational experiences are intimately connected to their situated positions, often shaped by colonialism. Similarly, these dynamics profoundly impact and shape the EiE sector. Notwithstanding, some young people resist limited education trajectories, in myriad ways, from leveraging family and community networks to exercising personal agency, seeking out, and setting up learning opportunities. A secondary objective of this study is to challenge the dominant modes of knowledge production and ways of working in the EiE field and to interrogate its conceptual framings by bringing to the fore the issues that young people want to highlight in their educational experiences when enabled to do so through using the digital storytelling research praxis.
title: A highly efficient agrobacterium-mediated method for transient gene expression and functional studies in multiple plant species
Creators: name: Zhang, Youjun
name: Chen, Moxian
name: Siemiatkowska, Beata
name: Toleco, Mitchell Rey
name: Jing, Yue
name: Strotmann, Vivien
name: Zhang, Jianghua
name: Stahl, Yvonne
name: Fernie, Alisdair R.
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 570 Biowissenschaften; Biologie

description: Although the use of stable transformation technology has led to great insight into gene function, its application in high-throughput studies remains arduous. Agro-infiltration have been widely used in species such as Nicotiana benthamiana for the rapid detection of gene expression and protein interaction analysis, but this technique does not work efficiently in other plant species, including Arabidopsis thaliana. As an efficient high-throughput transient expression system is currently lacking in the model plant species A. thaliana, we developed a method that is characterized by high efficiency, reproducibility, and suitability for transient expression of a variety of functional proteins in A. thaliana and 7 other plant species, including Brassica oleracea, Capsella rubella, Thellungiella salsuginea, Thellungiella halophila, Solanum tuberosum, Capsicum annuum, and N. benthamiana. Efficiency of this method was independently verified in three independent research facilities, pointing to the robustness of this technique. Furthermore, in addition to demonstrating the utility of this technique in a range of species, we also present a case study employing this method to assess protein-protein interactions in the sucrose biosynthesis pathway in Arabidopsis.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1189
Linear Dynamical Systems over Finite Rings
Creators: name: Xu, Guangwu
name: Zou, Yi Ming
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13M99; 92D99

description: The problem of linking the structure of a finite linear dynamical system with its dynamics is well understood when the phase space is a vector space over a finite field. The cycle structure of such a system can be described by the elementary divisors of the linear function, and the problem of determining whether the system is a fixed point system can be answered by computing and factoring the system's characteristic polynomial and minimal polynomial. It has become clear recently that the study of finite linear dynamical systems must be extended to embrace finite rings. The difficulty of dealing with an arbitrary finite commutative ring is that it lacks of unique factorization. In this paper, an efficient algorithm is provided for analyzing the cycle structure of a linear dynamical system over a finite commutative ring. In particular, for a given commutative ring $R$ such that $|R|=q$, where $q$ is a positive integer, the algorithm determines whether a given linear system over $R^n$ is a fixed point system or not in time $O(n^3\log(n\log(q)))$.
description: To appear in Journal of Algebra (Computational Section). Code for the algorithm is available upon request
Under the archway, Through the little blue door, Up the stairwell, To the exhibition floor
Creators: name: Le Quelenec, Victoria
Publisher: name: Archaeology Data Service
Year: 2015

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.
The Work of the Ceramics, Glass & Metals Section, British Museum Department of Conservation and Scientific Research.
Creators: name: Pearce, Philippa
Publisher: name: Archaeology Data Service
Year: 2015

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.
Security Defense of Large Scale Networks Under False Data Injection Attacks: An Attack Detection Scheduling Approach
Creators: name: Suo, Yuhan
name: Chai, Senchun
name: Chai, Runqi
name: Pang, Zhong-Hua
name: Xia, Yuanqing
name: Liu, Guo-Ping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In large-scale networks, communication links between nodes are easily injected with false data by adversaries. This paper proposes a novel security defense strategy from the perspective of attack detection scheduling to ensure the security of the network. Based on the proposed strategy, each sensor can directly exclude suspicious sensors from its neighboring set. First, the problem of selecting suspicious sensors is formulated as a combinatorial optimization problem, which is non-deterministic polynomial-time hard (NP-hard). To solve this problem, the original function is transformed into a submodular function. Then, we propose an attack detection scheduling algorithm based on the sequential submodular optimization theory, which incorporates \emph{expert problem} to better utilize historical information to guide the sensor selection task at the current moment. For different attack strategies, theoretical results show that the average optimization rate of the proposed algorithm has a lower bound, and the error expectation is bounded. In addition, under two kinds of insecurity conditions, the proposed algorithm can guarantee the security of the entire network from the perspective of the augmented estimation error. Finally, the effectiveness of the developed method is verified by the numerical simulation and practical experiment.
description: 14 pages, 13 figures
title: Analytical approach to synchronous states of globally coupled noisy rotators
Creators: name: Munyaev, Vyacheslav
name: Smirnov, Lev
name: Kostin, Vasily
name: Osipov, Grigory
name: Pikovsky, Arkady
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 530 Physik

description: We study populations of globally coupled noisy rotators (oscillators with inertia) allowing a nonequilibrium transition from a desynchronized state to a synchronous one (with the nonvanishing order parameter). The newly developed analytical approaches resulted in solutions describing the synchronous state with constant order parameter for weakly inertial rotators, including the case of zero inertia, when the model is reduced to the Kuramoto model of coupled noise oscillators. These approaches provide also analytical criteria distinguishing supercritical and subcritical transitions to the desynchronized state and indicate the universality of such transitions in rotator ensembles. All the obtained analytical results are confirmed by the numerical ones, both by direct simulations of the large ensembles and by solution of the associated Fokker-Planck equation. We also propose generalizations of the developed approaches for setups where different rotators parameters (natural frequencies, masses, noise intensities, strengths and phase shifts in coupling) are dispersed.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1188
title: Smoothed millennial-scale palaeoclimatic reference data as unconventional comparison targets: Application to European loess records
Creators: name: Zeeden, Christian
name: Obreht, Igor
name: Veres, Daniel
name: Kaboth-Bahr, Stefanie
name: Hošek, Jan
name: Marković, Slobodan B.
name: Bösken, Janina
name: Lehmkuhl, Frank
name: Rolf, Christian
name: Hambach, Ulrich
Publisher: name: Universität Potsdam
Year: 2021
Subjects: subject: 550 Geowissenschaften

description: Millennial-scale palaeoclimate variability has been documented in various terrestrial and marine palaeoclimate proxy records throughout the Northern Hemisphere for the last glacial cycle. Its clear expression and rapid shifts between different states of climate (Greenland Interstadials and Stadials) represents a correlation tool beyond the resolution of e.g. luminescence dating, especially relevant for terrestrial deposits. Usually, comparison of terrestrial proxy datasets and the Greenland ice cores indicates a complex expression of millennial-scale climate variability as recorded in terrestrial geoarchives including loess. Loess is the most widespread terrestrial geoarchive of the Quaternary and especially widespread over Eurasia. However, loess often records a smoothed representation of millennial-scale variability without all fidelity when compared to the Greenland data, this being a relevant limiting feature in integrating loess with other palaeoclimate records. To better understand the loess proxy-response to millennial-scale climate variability, we simulate a proxy signal smoothing by natural processes through application of low-pass filters of delta O-18 data from Greenland, a high-resolution palaeoclimate reference record, alongside speleothem isotope records from the Black Sea-Mediterranean region. We show that low-pass filters represent rather simple models for better constraining the expression of millennial-scale climate variability in low sedimentation environments, and in sediments where proxy-response signals are most likely affected by natural smoothing (by e.g. bioturbation). Interestingly, smoothed datasets from Greenland and the Black Sea-Mediterranean region are most similar in the last similar to 15 ka and between similar to 50-30 ka. Between similar to 30-15 ka, roughly corresponding to the Last Glacial Maximum and the deglaciation, the records show dissimilarities, challenging the construction of robust correlative time-scales in this age range. From our analysis it becomes apparent that patterns of palaeoclimate signals in loess-palaeosol sequences often might be better explained by smoothed Greenland reference data than the original high-resolution Greenland dataset, or other reference data. This opens the possibility to better assess the temporal resolution and palaeoclimate potential of loess-palaeosol sequences in recording supra-regional climate patterns, as well as to securely integrate loess with other chronologically better-resolved palaeoclimate records.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1187
Additional file 1: of Expanded base editing in rice and wheat using a Cas9-adenosine deaminase fusion
Creators: name: Li, Chao
name: Zong, Yuan
name: Wang, Yanpeng
name: Jin, Shuai
name: Zhang, Dingbo
name: Song, Qianna
name: Zhang, Rui
name: Gao, Caixia
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Sequences Complete coding sequences of the PABE-1 to PABE-7 fusion cistrons optimized in this study. (DOCX 4108Â kb)
BIAB - distraction and abstraction
Creators: name: Gilham, Jo
Publisher: name: Archaeology Data Service
Year: 2015

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.
Tuning the nuclei-induced spin relaxation of localized electrons by the quantum Zeno and anti-Zeno effects
Creators: name: Nedelea, V.
name: Leppenen, N. V.
name: Evers, E.
name: Smirnov, D. S.
name: Bayer, M.
name: Greilich, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum measurement back action is fundamentally unavoidable when manipulating electron spins. Here we demonstrate that this back action can be efficiently exploited to tune the spin relaxation of localized electrons induced by the hyperfine interaction. In optical pump-probe experiments, powerful probe pulses suppress the spin relaxation of electrons on Si donors in an InGaAs epilayer due to the quantum Zeno effect. By contrast, an increase of the probe power leads to a speed up of the spin relaxation for electrons in InGaAs quantum dots due to the quantum anti-Zeno effect. The microscopic description shows that the transition between the two regimes occurs when the spin dephasing time is comparable to the probe pulse repetition period.
description: 6+5 pages, 2+8 figures
Onset of regularity for FI-modules
Creators: name: Bahran, Cihan
Publisher: name: arXiv
Year: 2022
Subjects: subject: K-Theory and Homology (math.KT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 18A25

description: In terms of local cohomology, we give an explicit range as to when the FI-homology of an FI-module attains its regularity.
description: Added: corollaries to the main theorem and subsection about localization. 14 pages
Conformally flat Kaluza-Klein spaces, pseudo-/para-complex space forms and generalized gravitational kinks
Creators: name: Maraner, Paolo
name: Pachos, Jiannis K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The equations describing the Kaluza-Klein reduction of conformally flat spaces are investigated in arbitrary dimensions. Special classes of solution related to pseudo-Kahler and para-Kahler structures are constructed and classified according to spacetime dimension, signature and gauge field rank. Remarkably, rank two solutions include gravitational kinks together with their centripetal and centrifugal deformations.
description: 20 pages, 1 figure