cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Modeling of the process of capillary migration of moisture in the forest road construction
Creators: name: Gavrilov, T.A.
name: Stankevich, T.B.
name: Anpilogova, O.А.
name: Ratkova, E.I.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article is devoted to the problem of the emergence of low-temperature cracks in forest roads under the influence of cycles of their freezing and thawing. The methodology and results of numerical modeling of the process of capillary migration of moisture in the construction of a forest road with a variable width of the heat-insulating layer from the waste debarking round timber are described.
The study of Anisotropic Flows at LHC with purturbative simulation
Creators: name: Shin, Ghi R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the harmonic flows, for example, the directed, elliptic, third and fourth flow of the system of partons formed just after relativistic heavy ion collisions. We calculate the minijets produced during the primary collisions using standard parton distributions for the incomming projectile and target nucleus. We solve the Boltzmann equations of motion for the system of minijets by Monte Carlo method within only the perturbative sector. Based on the flow data calculated, we conclude the simulation can not explain the experimental results at RHIC and LHC so that the nonperturbative sector plays much more important roles even from the earliest stage of heavy ion collisions.
description: 7 figures
Narcissus micrantha Pallas
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: M. micrantha Pallas (M. stricta Link, M. arenaria Schrader) Cat. 262. Bis 2610m. l: Gueuroz (J.); La Bätiaz (J.); Ravoire (J.); Outre-Rhone (J., Garns). - 2: Fully-Saillon (J.); ob Hohtenn (Zwicky); ob Ausserberg (idem). - 3: Valsorey (Guyot); Riddes-Iserables (J.); Vex (Becherer); um Grächen (Koch); Zermatt, hohe Stellen: Hütten der Fluhalp, 2610 m (Wilczek 1918, Furrer 1920, Becherer 1944), Riffelalp, 2300 m (Thellung 1922); Saastal, hohe Stelle: Ahnagelleralp, 2180 m (A. Keller); ob Visperterminen (Beauverd). - 3a: Simplonplateau zwischen Hobschen und Blatten (Schmid); bei SimpIon-Dorf (F. S. Alioth 1875); an der Simplonstrasse ob Gabi, zwischen Gabi und Gondo und unterhalb Gondo gegen die italienische Grenze (Becherer). - 4: Grengiols (Becherer und Zwicky); Binn (Binz); Münster (Becherer). Forma microcalyx Gremli - 2: Saillon (Gams).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Organizing Deliberative Forums for Policy Design: A Methodological Review of a Policy-making Experiment in Nigeria's Education System. RISE Series Working Paper
Creators: name: Admin, RISE
name: Castradori, Marco
name: Okoye, Dozie
name: Wantchekon, Leonard
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 390201
subject: Education policy
classificationCode: 399999
subject: Other education not elsewhere classified
classificationCode: 440404
subject: Political economy and social change
classificationCode: 440499
subject: Development studies not elsewhere classified

description: The text explores the effects of introducing deliberative reforms to democratic institutions, focusing on the RISE Nigeria project. It provides a methodological template for organizing effective government-stakeholder deliberations, emphasizing government buy-in, stakeholder representation, data generation, consensual policy convergence, and empirical validity. The paper highlights the need for post-Summit monitoring and suggests guidelines for future replication of deliberative summits.
title: Laws of distribution of normal temperature stresses in stochastically inhomogeneous medium
Creators: name: Boyko, L.A.
name: Ksenzenko, L.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: Based on the theoretical methods of statistical mechanics, analytical methods for solving the statistical boundary value problem, mathematical modeling, and programming methods, the laws of temperature stress distribution in a structurally inhomogeneous body are constructed in the MathCad mathematical package. The example of asphalt concrete shows the log-normal distribution of normal temperature stresses for inclusion and the Gaussian distribution for normal temperature stresses of the binder.
Municipal landfill leachate characteristics and feasibility of retrofitting existing treatment systems with deammonification - A full scale survey
Creators: name: Mohammad-Pajooh, Ehsan
name: Weichgrebe, Dirk
name: Cuff, Graham
Publisher: name: Cambridge, MA : Elsevier Academic Press
Year: 2017
Subjects: subject: Anammox
subject: Deammonification
subject: Energy efficiency
subject: Leachate characteristics
subject: Leachate treatment
subject: Technology acceptance
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Leachate characteristics, applied technologies and energy demand for leachate treatment were investigated through survey in different states of Germany. Based on statistical analysis of leachate quality data from 2010 to 2015, almost half of the contaminants in raw leachate satisfy direct discharge limits. Decrease in leachate pollution index of current landfills is mainly related to reduction in concentrations of certain heavy metals (Pb, Zn, Cd, Hg) and organics (biological oxygen demand (BOD5), chemical oxygen demand (COD), and adsorbable organic halogen (AOX)). However, contaminants of concern remain COD, ammonium-nitrogen (NH4-N) and BOD5 with average concentrations in leachate of about 1850, 640, and 120 mg/L respectively. Concentrations of COD and NH4-N vary seasonally, mainly due to temperature changes; concentrations during the first quarter of the year are mostly below the annual average value. Electrical conductivity (EC) of leachate may be used as a time and cost saving alternative to monitor sudden changes in concentration of these two parameters, due to high correlations of around 0.8 with both COD and NH4-N values which are possibly due to low heavy metal concentrations in leachate. The decreased concentrations of heavy metals and BOD5 favor the retrofitting of an existing biological reactor (nitrification/denitrification) with the deammonification process and post denitrification, as this lowers average annual operational cost (in terms of energy and external carbon source) and CO2 emission by €25,850 and 15,855 kg CO2,eq respectively.
Non-Uniqueness of Minimal Superpermutations
Creators: name: Johnston, Nathaniel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We examine the open problem of finding the shortest string that contains each of the n! permutations of n symbols as contiguous substrings (i.e., the shortest superpermutation on n symbols). It has been conjectured that the shortest superpermutation has length $\sum_{k=1}^n k!$ and that this string is unique up to relabelling of the symbols. We provide a construction of short superpermutations that shows that, if the conjectured minimal length is true, then uniqueness fails for all n >= 5. Furthermore, uniqueness fails spectacularly; we construct more than doubly-exponentially many distinct superpermutations of the conjectured minimal length.
description: 9 pages, 1 figure
Origins of the Demand for Education:Evidence from Early Schools in Nigeria
Creators: name: Admin, RISE
name: Wantchékon, Léonard
name: Okoye, Dozie
name: Nyéki, Gábor
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 390304
subject: Primary education
classificationCode: 390406
subject: Gender, sexuality and education
classificationCode: 399999
subject: Other education not elsewhere classified
classificationCode: 440404
subject: Political economy and social change

description: This paper investigates the selection of students into attending the first primary schools in Nigeria, between 1845 and 1926, as well as the effect that these schools had on intergenerational mobility and social connections. The text covers both the first generation of students and their contemporaries, and their descendants in the second generation. Those who attended the first school in their area did better economically, spoke more languages, and were more likely to have friendships with people who were white, foreign, or otherwise outside of their ethnic group. Even though descendants of first-generation subjects in the control group started catching up and were substantially more likely to attend school, many of the differences persisted into the second generation. Modest evidence for heterogeneity in these differences by gender was found.
On-street parking availaibilty data in San Francisco, from stationary sensors and high-mileage probe vehicles
Creators: name: Bock, Fabian
name: Di Martino Sergio,
Publisher: name: New York, NY : Elsevier Inc.
Year: 2019
Subjects: subject: On-street parking
subject: San Francisco
subject: San Francisco Municipal Transportation Agency (SFMTA)
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: This dataset contains records of the measured on-street parking availability in San Francisco, obtained from the public API of the SFpark project. In 2011, the San Francisco Municipal Transportation Agency (SFMTA) started a project on smart parking, called SFpark, whose goal was the improvement of on-street parking management in San Francisco, mostly by means of demand-responsive price adjustments [1]. One of the key points of the project was the collection of information about on-street parking availability. To this aim, about 8,000 parking spaces were equipped with specific sensors in the asphalt, periodically broadcasting availability information. The SFpark project made available a public REST API, returning the number of free parking spaces and total number of provided parking spaces per road segment, for 5,314 parking spaces on 579 road segments in the pilot area. We collected parking availability data from 2013/06/13 until 2013/07/24, by querying this API at approximately 5-min intervals. As a result, we obtained in total about 7 million observations of parking availability on the road segments. These observations represent the first dataset we are providing. In addition, we simulated the achievable sensing coverage of on-street parking availability that could be achieved by a fleet of taxis, if they were equipped with sensors able to detect free parking spaces, like side-scanning ultrasonic sensors [3], or windshield-mounted cameras [4]. In particular, by exploiting real taxi trajectories in San Francisco from the Cabspotting project [5], we first computed the frequencies of taxi visits for each road segment covered by the SFpark sensors. Then, we downsampled the first dataset, in order to have a parking availability information for a road segment at a given time only in presence of a transit of a taxi on that segment at that time. This step was replicated for 5 different sizes of taxi fleets, namely 100, 200, 300, 400, and 486. Consequently, in total six datasets are available for further research in the field of on-street parking dynamics. All these datasets can be downloaded at: https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/YLWCSU.
Romanische Kunst an der Maas im 11., 12. und 13. Jahrhundert
Creators: name: Kötzsche, Dietrich
Publisher: name: Aachener Kunstblätter
Year: 2016

description: Rezension zu: Romanische Kunst an der Maas im 11., 12. und 13. Jahrhundert Text und Bildbeschreibung von Suzanne Colion-Gevaert, Jean Lejeune und Jacques Stiennon. Vorwort und Einleitung von Germaine Faider-Feytmans. 331 Seiten mit 13 schwarz-weißen und 75 farbigen Tafeln. Deutsche Übersetzung des französi- schen Originaltextes von Giselci und Peter Bloch. Briissel 1962. Kunstverlag L’Arcade.
description: Aachener Kunstblätter, Bd. 29 (1964): Aachener Kunstblätter
Origins of Western Education and Persistent Inequities in Access to Education
Creators: name: Admin, RISE
name: CRT, Nigeria
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 390201
subject: Education policy
classificationCode: 399999
subject: Other education not elsewhere classified
classificationCode: 440499
subject: Development studies not elsewhere classified

description: This text discusses the origins and spread of mass education in Nigeria and explores how conflicting interests, particularly between Christian missions and the colonial government, affected access to education. It highlights persistent inequities in educational attainment between the northern and southern parts of the country. The study examines the timing and type of the earliest schools, showing that government schools in restricted areas were slow to establish, limiting access to education for a significant portion of the population. In contrast, mission schools were more inclusive. The analysis suggests that the spread of education was faster in areas where missions were allowed, contributing to the education gap between northern and southern Nigeria.
Horizons cannot save the Landscape
Creators: name: Bena, Iosif
name: Buchel, Alex
name: Dias, Oscar J. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Solutions with anti-D3 branes in a Klebanov-Strassler geometry with positive charge dissolved in fluxes have a certain singularity corresponding to a diverging energy density of the RR and NS-NS three-form fluxes. There are many hopes and arguments for and against this singularity, and we attempt to settle the issue by examining whether this singularity can be cloaked by a regular event horizon. This is equivalent to the existence of asymptotically Klebanov-Tseytlin or Klebanov-Strassler black holes whose charge measured at the horizon has the opposite sign to the asymptotic charge. We find that no such KT solution exists. Furthermore, for a large class of KS black holes we considered, the charge at the horizon must also have the same sign as the asymptotic charge, and is completely determined by the temperature, the number of fractional branes and the gaugino masses of the dual gauge theory. Our result suggests that antibrane singularities in backgrounds with charge in the fluxes are unphysical, which in turn raises the question as to whether antibranes can be used to uplift AdS vacua to deSitter ones. Our results also point out to a possible instability mechanism for the antibranes.
description: 25 pages, 8 figures
Reliability of design approaches for axially loaded offshore piles and its consequences with respect to the North Sea
Creators: name: Schmoor, Kirill A.
name: Achmus, Martin
name: Foglia, Aligi
name: Wefer, Maik
Publisher: name: Amsterdam : Elsevier B.V.
Year: 2018
Subjects: subject: Global safety factors (GSFs)
subject: Model error
subject: Pile load test
subject: Quality factors
subject: System reliability
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: In the near future, several offshore wind farms are planned to be built in the North Sea. Therefore, jacket and tripod constructions with mainly axially loaded piles are suitable as support structures. The current design of axial bearing resistance of these piles leads to deviant results regarding the pile resistance when different design methods are adopted. Hence, a strong deviation regarding the required pile length must be addressed. The reliability of a design method can be evaluated based on a model error which describes the quality of the considered design method by comparing measured and predicted pile bearing resistances. However, only few pile load tests are reported with regard to the boundary conditions in the North Sea. This paper presents 6 large-scale axial pile load tests which were incorporated within a new model error approach for the current design methods used for the axial bearing resistance, namely API Main Text method and cone penetration test (CPT)-based design methods, such as simplified ICP-05, offshore UWA-05, Fugro-05 and NGI-05 methods. Based on these new model errors, a reliability-based study towards the safety was conducted by performing a Monte-Carlo simulation. In addition, consequences regarding the deterministic pile design in terms of quality factors were evaluated. It is shown that the current global safety factor (GSF) prescribed and the partial safety factors are only valid for the API Main Text and the offshore UWA-05 design methods; whereas for the simplified ICP-05, Fugro-05 and NGI-05 design methods, an increase in the required embedded pile length and thus in the GSF up to 2.69, 2.95 and 3.27, respectively, should be considered to satisfy the desired safety level according to DIN EN 1990 of β = 3.8. Further, quality factors for each design method on the basis of all reliability-based design results were derived. Hence, evaluation of each design method regarding the reliability of the pile capacity prediction is possible.
Forming-induced Gloss Reduction of Coil Coated Sheets for White Goods
Creators: name: Behrens, Bernd-Arno
name: Hübner, Sven
name: Gaebel, Christoph Michael
Publisher: name: London : Elsevier Ltd.
Year: 2017
Subjects: subject: Coil Coating
subject: Forming Limit
subject: Gloss Reduction
subject: Coatings
subject: Domestic appliances
subject: Sensory perception
subject: Sheet metal
subject: Strain
subject: Application examples
subject: Coil coated materials
subject: Coil coatings
subject: Forming limits
subject: Forming simulations
subject: High resolution
subject: In-situ measurement
subject: Simulation model
subject: Coated materials
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In the household appliance industry piecework coating of body components has been successively substituted by usage of coil-coated sheets. For components with low strains or components not visible for the customer and therefore with no requirements concerning the visual impression these organic-coated materials bear a proper possibility for cost savings. But besides that, for high quality household appliances there are high visual requirements on the front panels. Already the gloss reduction of the coating layer due to higher strains restricts the application for front panels in most cases. From an economic point of view the application of coil-coated sheets even for these components is highly demanded. For an acceptable substitution the resulting paintwork properties after the forming process should be able to forecast within numerical simulations. Therefore the forming-induced gloss reduction of the respective coated material has to be determined in a proper manner. This paper deals with analyses concerning the forming-induced and strain-state-depending gloss reduction of a coil-coated material commercially used for white goods components. The investigations include measurements of strains and gloss by using an in situ approach. For that purpose, material specimens are formed using a modified experimental setup referring to the Marciniak-Test (ISO 12004-2). A fundamental advantage of the in situ measurements is a minor demand of experiments together with a high resolution of the measured variables. In conclusion, based on the experimental results a conceivable forming limit criterion is defined and integrated in an exemplarily simulation model. The front panel of a front-loading washing machine is used as a practice-oriented application example. Using of the pursued approach improper gloss reductions on the formed panel can be predicted within forming simulation.
The Problem of Out-of-School Children in Nigeria
Creators: name: Admin, RISE
name: Oyekan, Khalimath
name: Ayorinde, Ayodotun
name: Adenuga, Oreoluwa
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 390201
subject: Education policy
classificationCode: 399999
subject: Other education not elsewhere classified
classificationCode: 440404
subject: Political economy and social change
classificationCode: 440499
subject: Development studies not elsewhere classified

description: This text discusses the global challenge of out-of-school children, focusing on Nigeria. It highlights the 2030 Agenda for Sustainable Development's Goal 4, which aims to ensure quality education for all. The text emphasizes the prevalence of out-of-school children in Nigeria, particularly in rural and deprived areas. It mentions the government's efforts and suggests the Accelerated Education Programme (AEP) as a solution
Properties of pulsed-laser deposited nanocomposite NiO:Au thin films for gas sensing applications
Creators: name: Fasaki, I.
name: Kandyla, M.
name: Kompitsas, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanocomposite thin films formed by gold nanoparticles embedded in a nickel oxide matrix have been synthesized by a new variation of the pulsed laser deposition technique. Two actively synchronized laser sources, a KrF excimer laser at 248 nm and an Nd:YAG laser at 355 nm, were used for the simultaneous ablation of nickel and gold targets in oxygen ambient. The structural, morphological, and electrical properties of the obtained nanocomposite films were investigated in relation to the fluence of the laser irradiating the gold target. The nanocomposite thin films were tested as electrochemical hydrogen sensors. It was found that the addition of the gold nanoparticles increased the sensor sensitivity significantly.
Occurrence of micropollutants in the wastewater streams of cruise ships
Creators: name: Westhof, Lena
name: Köster, Stephan
name: Reich, Margrit
Publisher: name: Amsterdam : Elsevier BV
Year: 2016
Subjects: subject: Cruise ships
subject: MBR
subject: Organic micropollutants
subject: Permeate
subject: PPCPs
subject: Wastewater
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt

description: Nowadays the protection of the marine environment raises increasing academic and public attention. The issue of organic micropollutants is of equally high importance for the marine ecosystems. Maritime vessels are considered to significant sources of micropollutants especially if the ship carries many passengers, which is often true for cruise ships which frequent attractive and sensitive sea areas. The emission pathways for micropollutants include wastewater discharges and sewage sludge disposal. The findings of the German research and development project NAUTEK contribute to bridging the knowledge gap about micropollutant emissions from cruise ships. As expected, micropollutants were detected in both the blackwater and greywater on board, emitted from either the passengers or certain ship operations. In total, 16 out of 21 target substances were detected. Peak concentrations of pharmaceuticals could be found mainly in blackwater (peak conc. Carbamazepine 3.9 μg/L, Ibuprofen 29 μg/L, Diclofenac 0.04 μg/L), while greywater is mainly characterized by substances such as ointment residues, UV-filters and flame retardants (peak conc. Diclofenac 0.65 μg/L, Bisphenol A 8 μg/L, Tris(1-chloro-2-propyl)phosphate 136 μg/L). Further analyses suggest a gradual removal of the micropollutants by the onboard MBR plant (MBR effluent peak conc. Carbamazepine 0.47 μg/L, Ibuprofen 6.8 μg/L, Diclofenac 0.3 μg/L). Findings of this research provide a critical stepstone for shaping technical solutions for onboard micropollutants removal and water resource recycling.
Generation and propagation of ship-borne waves - Solutions from a Boussinesq-type model
Creators: name: David, C. Gabriel
name: Roeber, Volker
name: Goseberg, Nils
name: Schlurmann, Torsten
Publisher: name: Amsterdam : Elsevier BV
Year: 2017
Subjects: subject: Coastal engineering
subject: Ships
subject: Wave propagation
subject: Boussinesq-type equations
subject: Boussinesq-type models
subject: Depth-averaged equations
subject: Irregular bathymetries
subject: Kelvin wedge
subject: Ship waves
subject: Surrounding environment
subject: Waterway infrastructure
subject: Water waves
subject: Vessel wake
subject: Waterway and port engineering
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Ship-borne waves are of significant interest for the design of port and waterway infrastructure and the maintenance of its surrounding environment. Computation of these nonlinear and dispersive waves has mainly been focusing on their near-field generation as a fluid-body interaction problem. This study presents an approach for the computation of ship waves generated by a moving pressure disturbance with phase-resolving and depth-averaged equations. To support a wide range of applicability, the paper deals with the evolution of the vessel wedge compared to an analytical solution for sub-to supercritical speeds and the assessment of wave patterns from a broad range of pressure term dimensions, including cross-references to findings in other studies. The conducted numerical experiments showcase the typical response of a Boussinesq-type model to a simplified moving pressure disturbance and identify the main factors and criteria for ship-wave propagation in the far-field of a vessel. Finally, a unique field dataset underlines the capability of an extended Boussinesq-type model to compute the propagation of vessel waves over an irregular bathymetry.
Myosotis silvatica Hoffm.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: M. silvatica (Ehrh.) Hoffm. Ssp. silvatica (Ehrh.) Gams 1927 (ssp. eu-silvatica Hayek 1928, P. Fournier 1938; M. silv. Hoffm. s. str.) Cat. 262. Obere Höhengrenze festzustellen. (Die Angabe des Cat.: «2950m»beruht auf einem Versehen.) Forma lactea Bönningh.- 2: Wolfstritt ob Leukerbad(Becherer). Forma micrantha Fiori - 3: Alp Tracuit ob Zinal (Sulger). Ssp. alpestris (F. W. Schmidt) Marcailhou-d'Aymeric em. Gams (M. alpestris F. W. Schmidt) Cat. 262. Bis 3029 m: bei der Gandegghütte ob Zermatt (Becherer 1944 und 1945). (Ebenda, bei 3005 m, schon Thellung1922). Var.ambigens (Beguinot) Gams - 2: Grande Garde ob Saillon (Gams). Var. exscapa(DC.) - l: Vieux-Emosson (Exk.Soc.Murith.).- 2:Faldumpass (J.). - 3:Penninische Kette vielfach. - 3a:Hohlicht am Simplon (Chenevard). - 4:Saflischtal (P.). Var.macrocarpa (Vestergren) - 3a:Seehorn (Chenevard).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
School-Based Committee Management, Parental Investment and Educational Outcomes in Nigeria
Creators: name: Admin, RISE
name: CRT, Nigeria
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 390402
subject: Education assessment and evaluation
classificationCode: 390403
subject: Educational administration, management and leadership
classificationCode: 399999
subject: Other education not elsewhere classified

description: This paper examines the relationship between students' performance and the structure and functioning of School-Based Management Committees (SBMCs) in Nigerian public primary schools. Surveying various stakeholders, including head teachers, teachers, pupils, and households, the study analyzes the impact of SBMC factors such as parents' membership, gender composition, and decision-making processes on student test scores. The findings indicate a positive correlation between student performance and the presence of women in SBMCs, but do not establish a clear link between democratic functioning of SBMCs and test scores.
Numerical Investigations on District Heating Pipelines under Combined Axial and Lateral Loading
Creators: name: Gerlach, Tim
name: Achmus, Martin
name: Terceros, Mauricio
Publisher: name: London : Elsevier Ltd.
Year: 2018
Subjects: subject: buried pipelines
subject: combined loading
subject: numerical modelling
subject: Soil-structure interaction
subject: District heating
subject: Friction
subject: Heat resistance
subject: Heating equipment
subject: Numerical models
subject: Oil well drilling equipment
subject: Pipelines
subject: Soil structure interactions
subject: Soils
subject: Buried pipelines
subject: Combined loading
subject: District heating networks
subject: Numerical investigations
subject: Pipe-soil interaction
subject: Skin friction resistance
subject: Temperature dependent
subject: Three dimensional finite element model
subject: Loading
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Within the design process of district heating networks, the soil resistances in axial and lateral pipeline direction are commonly treated independently as friction resistance and bedding pressure. However, at curved segments or near ellbows, these resistances occur simultaneously and affect each other. The state of knowledge regarding this topic is summarized, and it is shown that only limited information exists for this case of loading. Therefore, a three-dimensional finite element model was developed, using the sophisticated concept of hypoplasticity as an advanced constitutive model for the bedding material. This soil model is able to account for dilatancy, barotropy and pycnotropy of granular soils. Subsequently, variations of the loading direction were performed for a reference system. The investigations give a good insight into the behaviour of district heating pipelines under combined loading, showing the interdependency of skin friction resistance and bedding pressure. We present a design approach which incorporates interaction terms, derived from the presented investigations. Results gained from these investigation are then transferred to the academic district heating network design tool IGtH-Heat, to evaluate in which manner the incorporation of coupling terms between bedding and friction resistance influences the pipe-soil interaction. Additionally, a temperature dependent formulation of maximum friction resistance is adopted to incorporate the effects of radial pipe displacement. Thereby we demonstrate that the predicted pipeline's displacement significantly change when these effects are taken into account. Using this new formulation, model predictions are compared to data from full scale field measurements.
title: ОСОБЕННОСТИ ТЕРРИТОРИАЛЬНОЙ ОРГАНИЗАЦИИ ПИЩЕВОЙ ПРОМЫШЛЕННОСТИ АГРАРНОГО РЕГИОНА
title: FEATURES IN THE TERRITORIAL ORGANIZATION OF THE FOOD  INDUSTRY IN  THE AGRICULTURAL REGION
Creators: name: Криулина, Е.Н.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Кризисные явления 2012–2017 годов оказали негативное влияние на развитие пищевой от-расли Северо-Кавказского федерального округа (далее – Округа, СКФО). Значительная часть предприятий отрасли слабо адаптирова-лась к структурному кризису, сохранение финансовой стабильности в условиях ко-торого актуализирует необходимость кар-динальных социально-экономических изме-нений. Государственные программы под-держки импортозамещения, продоволь-ственное эмбарго на ввоз некоторых видов товаров из стран ЕС, США, Канады, Австра-лии и Норвегии создали реальные предпо-сылки для развития отечественного про-довольственного рынка и отрасли в целом. Оценка различных точек зрения на направ-ления развития Северного Кавказа позво-ляет утверждать, что данный регион, обла-дающий значительным и уникальным демо-графическим, рекреационным, гидроэнер-гетическим, биологическим потенциалом, должен занять ведущее место в производ-стве продукции пищевой промышленности наряду с Центральной Россией, Поволжьем и Уралом. Степень локализации, массово-сти, устойчивости к кризисным явлениям и негативным экономическим изменениям позволяет считать пищевую промышлен-ность инвестиционно привлекательной, быстроокупаемой и рентабельной отрас-лью. Вместе с тем преобладание в структу-ре экономики большинства субъектов Округа секторов с низкой производитель-ностью труда требует ее инновационного развития.
description: The crisis of 2012–2017 had a negative impact on the development of the food industry in the North Caucasus Federal District ( hereinafter District, NSFD). A significant part of the enterprises in the branch is poorly adapted to the structural crisis, the preservation of financial stability in the conditions of which actualizes the need for fundamental social and economic changes. State programs to support import substitution, the food embargo on the importation of certain goods types  from the EU, USA, Canada, Australia and Norway have created real prerequisites for the development of the domestic food market and the industry as a whole. An assessment of different points of view on the development directions of the North Cauca-sus suggests that this region, which has a significant and unique demographic, recreational, hydropower, and biological potential, should take a leading place in the production of food products along with Central Russia, the Volga region, and the Urals. The degree of localiza-tion, mass character, resistance to crisis phenomena and negative economic changes allowes us to consider the food industry to be  an attractive investment, quickly paid back and profitable industry. At the same time, the predominance of sectors with low labor  productivity  in the economy structure of mоst constituent entities in the District requires its innovative develop-ment.
Predicting growth and finding biomass production using the general growth mechanism
Creators: name: Shestopaloff, Yuri K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: First, we briefly describe the general growth mechanism, which governs the growth of living organisms, and its mathematical representation, the growth equation. Using the growth equation, we compute growth curve for S. cerevisiae and show that it corresponds to available experimental data. Then, we propose a new method for finding amount of synthesized biomass without complicated stoichiometric computations and apply this method to evaluation of biomass production by S. cerevisiae. We found that obtained results are very close to values obtained by methods of metabolic flux analysis. Since methods of metabolic flux analysis require finding produced biomass, which is one of the most important parameters affecting stoichiometric models, a priori knowledge of produced biomass can significantly improve methods of metabolic flux analysis in many aspects, which we also discuss. Besides, based on the general growth mechanism, we considered evolutionary development of S. cerevisiae and found that it is a more ancient organism than S. pombe and is apparently its direct predecessor.
description: 15 pages, 3 tables, 4 figures
title: ХИМИКО-БИОЛОГИЧЕСКОЕ ОБОСНОВАНИЕ РАЗ-РАБОТКИ ТЕХНОЛОГИИ НОВЫХ ФУНКЦИОНАЛЬНЫХ ПРОДУКТОВ ПИТАНИЯ НА ОСНОВЕ ЦЕЛЕБНЫХ РАСТЕНИЙ
title: CHEMICAL AND BIOLOGICAL JUSTIFICATION OF THE DEVELOPMENT OF TECHNOLOGY OF NEW FUNCTIONAL PRODUCTS OF FOOD ON THE BASIS OF HEALING PLANTS
Creators: name: Горобец, Д.В.
name: Анискина, М.В.
name: Ничипуренко, Е.Н.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Здоровье человека во многом зависит от качества и количества поступивших с пищей биологически активных веществ (БАВ). Актуальность применения целебных (пищевых и лекарственных) растений все в большей мере возрастает, так как растительные ле-чебно- оздоровительные средства, полученные из них биодоступны организму челове-ка по своей природе, они практически нетоксичны, зачастую без побочных действий, но невысокое со-держание БАВ требует длительного курса приема. В связи с этим необходимо разрабатывать и внедрять продукты для здорового питания, которые поз-волят и поддерживать здоровье человека в тонусе и, тем самым, улучшать его.
description: Human health depends largely on the quality and quantity of biologically active substances (BAS) from food. The relevance of the use of medicinal (food and medicinal) plants is in-creasingly increasing, since the herbal medicinal and health-improving agents obtained from them are bioavailable to the human body by their nature, they are practically non-toxic, often without side effects, but the low content of BAS requires a long course admission. In this re-gard, it is necessary to develop and introduce products for a healthy diet that will allow and maintain human health in good shape and, thereby, improve it.
School-Based Committee Management, Parental Investment and Educational Outcomes in Nigeria
Creators: name: Admin, RISE
name: CRT, Nigeria
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 390304
subject: Primary education
classificationCode: 390402
subject: Education assessment and evaluation
classificationCode: 399999
subject: Other education not elsewhere classified

description: Using linear regression analysis on a representative stratified sample of head teachers, teachers, pupils, and households connected to public primary schools in five Nigerian states, a forthcoming RISE working paper analyzes the relationship between students' performances at school as measured by test scores and School Based Management Committees� (SBMCs�) structure and functioning (parents' membership, gender composition, and decision-making processes). Results suggest a significant and positive relationship between student performance and the percentage of women in SBMCs. That said, results on the relationship between democratic functioning of SBMCs and student test scores were inconclusive.
Mesh-based piecewise planar motion compensation and optical flow clustering for ROI coding
Creators: name: Meuel, Holger
name: Munderloh, Marco
name: Reso, Matthias
name: Ostermann, Joern
Publisher: name: Cambridge : Cambridge University Press
Year: 2015
Subjects: subject: Region of interest ROI coding
subject: Mesh-based motion compensation
subject: Superpixel segmentation
subject: Low bit rate HDTV video coding
subject: Moving object detection
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: For the transmission of aerial surveillance videos taken from unmanned aerial vehicles (UAVs), region of interest (ROI)-based coding systems are of growing interest in order to cope with the limited channel capacities available. We present a fully automatic detection and coding system which is capable of transmitting high-resolution aerial surveillance videos at very low bit rates. Our coding system is based on the transmission of ROI areas only. We assume two different kinds of ROIs: in order to limit the transmission bit rate while simultaneously retaining a high-quality view of the ground, we only transmit new emerging areas (ROI-NA) for each frame instead of the entire frame. At the decoder side, the surface of the earth is reconstructed from transmitted ROI-NA by means of global motion compensation (GMC). In order to retain the movement of moving objects not conforming with the motion of the ground (like moving cars and their previously occluded ground), we additionally consider regions containing such objects as interesting (ROI-MO). Finally, both ROIs are used as input to an externally controlled video encoder. While we use GMC for the reconstruction of the ground from ROI-NA, we use meshed-based motion compensation in order to generate the pelwise difference in the luminance channel (difference image) between the mesh-based motion compensated and the current input image to detect the ROI-MO. High spots of energy within this difference image are used as seeds to select corresponding superpixels from an independent (temporally consistent) superpixel segmentation of the input image in order to obtain accurate shape information of ROI-MO. For a false positive detection rate (regions falsely classified as containing local motion) of less than 2. we detect more than 97. true positives (correctly detected ROI-MOs) in challenging scenarios. Furthermore, we propose to use a modified high-efficiency video coding (HEVC) video encoder. Retaining full HDTV video resolution at 30 fps and subjectively high quality we achieve bit rates of about 0.6-0.9Mbit/s, which is a bit rate saving of about 90. compared to an unmodified HEVC encoder.
Ion polishing as a method of imaging the magnetic structures in CoNiGa monocrystal
Creators: name: Żak, Andrzej
name: Łaszcz, Amadeusz
name: Hasiak, Mariusz
name: Gerstein, Gregory
name: Maier, Hans Jürgen
name: Dudzinski, Wlodzimierz
Publisher: name: Amsterdam : Elsevier B.V.
Year: 2018
Subjects: subject: CoNiGa
subject: Ion polishing
subject: Magnetic domains
subject: Magnetic shape memory alloy
subject: TEM
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Magnetic domain structure of magnetic shape memory alloy was observed using backscattered electron detector in scanning electron microscope and using Fresnel imaging in transmission electron microscope. The sample subjected to additional ion polishing allowed observation of the contrast associated with the magnetic structure of the material under conditions that exclude the use of Foucault or Fresnel transmission electron microscopy imaging. The additional research conducted using atomic force microscopy showed a significant relationship between the method of preparation and the magnetic shape memory alloy sample surface.
HST Spectral Mapping of L/T Transition Brown Dwarfs Reveals Cloud Thickness Variations
Creators: name: Apai, Daniel
name: Radigan, Jacqueline
name: Buenzli, Esther
name: Burrows, Adam
name: Reid, Iain N.
name: Jayawardhana, Ray
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Most directly imaged giant exoplanets are fainter than brown dwarfs with similar spectra. To explain their relative underluminosity unusually cloudy atmospheres have been proposed. However, with multiple parameters varying between any two objects, it remained difficult to observationally test this idea. We present a new method, sensitive time-resolved Hubble Space Telescope near-infrared spectroscopy, to study two rotating L/T transition brown dwarfs (2M2139 and SIMP0136). The observations provide spatially and spectrally resolved mapping of the cloud decks of the brown dwarfs. The data allow the study of cloud structure variations while other parameters are unchanged. We find that both brown dwarfs display variations of identical nature: J- and H-band brightness variations with minimal color and spectral changes. Our light curve models show that even the simplest surface brightness distributions require at least three elliptical spots. We show that for each source the spectral changes can be reproduced with a linear combination of only two different spectra, i.e. the entire surface is covered by two distinct types of regions. Modeling the color changes and spectral variations together reveal patchy cloud covers consisting of a spatially heterogenous mix of low-brightness, low-temperature thick clouds and brighter, thin and warm clouds. We show that the same thick cloud patches seen in our varying brown dwarf targets, if extended to the entire photosphere, predict near-infrared colors/magnitudes matching the range occupied by the directly imaged exoplanets that are cooler and less luminous than brown dwarfs with similar spectral types. This supports the models in which thick clouds are responsible for the near infrared properties of these underluminous exoplanets.
description: Astrophysical Journal, in press
Numerical Investigation for the Design of a Hot Forging Die with Integrated Cooling Channels
Creators: name: Behrens, Bernd-Arno
name: Bouguecha, Anas
name: Vucetic, M.
name: Bonhage, M.
name: Malik, I.Y.
Publisher: name: Amsterdam : Elsevier
Year: 2016
Subjects: subject: powder metaalurgy
subject: cooling system
subject: thermo-mechanical simulations
subject: hot forging
subject: numerical simulations
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: Ongoing research at the Institute of Forming Technology and Machines (IFUM) within the scope of sub-project E3 of the Collaborative Research Centre 653 deals with the generation of controlled cavities inside a sintered hot forging die. The primary objective of sub-project E3 is to develop a forging die which can “feel”, “learn” and “control” autonomous reactions to process variations. The current project stage aims at developing a hot forging die with integrated cooling channels. This paper presents the findings of numerical investigations carried out to analyze the hot forging die made of tool steel powder and equipped with internal cooling channels. Two different geometric variations have been numerically investigated in order to study the stress states within the die under process boundary conditions.
title: ПОКАЗАТЕЛИ МИКРОБИОЛОГИЧЕСКОЙ БЕЗОПАСНОСТИ АЛЬБУМИИНОЙ ПАСТЫ С ФИТООБОГАТИТЕЛЕМ В ПРОЦЕССЕ ХРАНЕНИЯ
title: INDICATORS OF MICROBIOLOGICAL SAFETY OF PASTA AL-BUMEN WITH HERBAL DRESSING DURING STORAGE
Creators: name: Держапольская, Ю.И.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Основная характеристика безопасности молочных продуктов  их микробиологическая обсемененность, поэтому в решении проблемы производства безопасной обогащенной продукции главное значение имеет обеспечение микробиологической безопасности, которая определяется количеством микроорганизмов, их видом и способностью развиваться в продукции. В работе рассматриваются вопросы изучения микробиологических показателей альбуминной пасты с фитообогатителем в процессе хранения.
description: The main characteristic of the safety of dairy products – their microbiological contamination, therefore, in solving the problem of production of safe enriched products, the main importance is to ensure microbiological safety, which can be determined by the number of microorganisms, their type and ability to develop in products. The paper deals with the study of microbiological parameters of albumin paste with Phyto concentrator during storage.
Modeling hydraulic cracks and inclusion interaction using XFEM
Creators: name: He, Bo
name: Zhuang, Xiaoying
Publisher: name: Amsterdam : Elsevier
Year: 2018
Subjects: subject: Porous media
subject: XFEM
subject: Hydraulic fractures
subject: Crack propagation
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In this study, we employ a coupled hydromechanical model to study the hydraulic fracture propagation path in porous media under the influence of existing pressurized voids. The hydraulic fracturing field study reveals that the existing natural voids and cracks alter the local properties of the porous media and influence the fracture propagation pattern. We incorporate these phenomena into the presented hydromechanical model, which is constructed from the mass and momentum balance equations for saturated porous media. The extended finite element method (XFEM) is applied for modeling the fluid flow through discrete cracks. The nonlinear hydromechanical equations are solved by the Newton-Raphson scheme with an implicit time integration procedure. Finally, numerical examples are presented and compared with experimental results. It is found that the fracture propagation path is significantly influenced by the existing pressurized voids and essential properties of the porous media; that is, the crack trends to propagate towards the pressurized voids.