171 research outputs found
Inflöde-bearbetning-utflöde : En studie om språk- och kunskapsutvecklande arbetssätt i internationella klasser.
No full textLanguage is the basis for all communication. Man needs a rich and nuanced language to understand and be understood. With a new language is a new culture, a new identity and a new need to be included in a community. Language develops only if it is used. The use of the language through conversation, reading and writing, working in various forms, gives the student capability to process the inflow of a future outflow. Arian Asinger is the author of this essay written at Södertörn University spring semester 2009. Instructor for the paper has been Per Sundgren. The essay has been named "Inflow - processing - output. A study of language- and knowledge based development approach in international classes". This work puts forward four teachers teaching methods in international classes in a school in central Sweden. With international classes meant preparation classes to newly arrived refugees and immigrants with a different mother tongue than Swedish. The main purpose of this study is to present the teaching methods of research considers the promotion of pupils' learning and language skills development. This has been lodged against the teachers working in reality and what teaching methods they use. The material is collected from a qualitative research through interviews. The result is then analyzed against previous research which shows differences in teaching methods and educational philosophy which might depend on teachers' educational background in the subject Swedish as a second language
Inflöde-bearbetning-utflöde : En studie om språk- och kunskapsutvecklande arbetssätt i internationella klasser.
No full textLanguage is the basis for all communication. Man needs a rich and nuanced language to understand and be understood. With a new language is a new culture, a new identity and a new need to be included in a community. Language develops only if it is used. The use of the language through conversation, reading and writing, working in various forms, gives the student capability to process the inflow of a future outflow. Arian Asinger is the author of this essay written at Södertörn University spring semester 2009. Instructor for the paper has been Per Sundgren. The essay has been named "Inflow - processing - output. A study of language- and knowledge based development approach in international classes". This work puts forward four teachers teaching methods in international classes in a school in central Sweden. With international classes meant preparation classes to newly arrived refugees and immigrants with a different mother tongue than Swedish. The main purpose of this study is to present the teaching methods of research considers the promotion of pupils' learning and language skills development. This has been lodged against the teachers working in reality and what teaching methods they use. The material is collected from a qualitative research through interviews. The result is then analyzed against previous research which shows differences in teaching methods and educational philosophy which might depend on teachers' educational background in the subject Swedish as a second language
Roman primacy and the development of the synodal institution in the period of the Arian controversy
No full textThe object of this study is process of evolution of church organization in the 4th century, especially the relationships between Roman primacy and synodal institution in the epoch of the Arian controversy. The author examines evolution of the institution of the Roman synod and practice of participation of the Roman See in church councils outside Rome, focusing on the unsuccessful attempt to convene the general council in Rome in 382. Analysis of historical data shows that the ability of the Roman see to organize in a short time a representative council (mainly of the Italian bishops) allowed Rome to claim for a special status within the church communion. In the same time the Roman See did not become in the 4th century the center of conciliar activity at the universal level. Participation of Rome in Ecumenical and Western councils was quite passive. In the second part of the paper the author attempts to reconstruct various models of church organization, which were typical for the western and the eastern episcopate in the 4th century. The author concludes that the real initiator of the development of universal primacy of Rome was not originally the pope, but the western episcopate (council of Serdica, 343). In the second part of the 4th century pope Damasus developed this conception, putting the principle of primacy of the Roman See as the chair of Peter above principle of synodal consensus. At the same time eastern bishops considered the Roman chair as the center of the West, rather than the head of the whole Church. Sometimes they invited bishop of Rome and other western bishops to act as arbiters in the eastern conflicts, but more often they defended the idea of full autonomy of the East
Biographies of ancient and modern celebrated freethinkers : reprinted from an English work, entitled "Half-hours with the freethinkers" /
No full textOn cover: Half hours with freethinkers.Thomas Hobbes.--Lord Bolingbroke.--Condorcet.--Spinoza.--Anthony Collins.--Des Cartes.--M. de Voltaire.--John Toland.--Compte de Volney.--Charles Blount.--Percy Byssche Shelley.--Claude Arian Helvetius.--Frances W. D'Arusmont.--Epicurus.--Zeno.--Matthew Tindal.--David Hume.--Dr. Thomas Burnet.--Thomas Paine.--Baptiste de Mirabaud.--Baron d'Holbach.--Robert Taylor.--Joseph Barker.Mode of access: Internet
Sustained epidermal growth factor receptor levels and activation by tethered ligand binding enhances osteogenic differentiation of multi-potent marrow stromal cells
No full textAuthor Manuscript 2011 April 29.Epidermal growth factor receptor (EGFR)-mediated signaling helps regulate bone development and healing through its effects on osteogenic cells. Here, we show how EGFR activity and osteogenic differentiation responses in primary human bone marrow-derived multipotent stromal cells (MSCs) are influenced by presenting covalently tethered epidermal growth factor (tEGF) on the culture substratum, a presentation mode that reduces EGFR internalization and restricts signaling to the cell surface. In both absence and presence of tEGF, MSCs increase expression levels of EGFR and its heterodimerization partner HER2 during the course of osteogenic differentiation. tEGF substrata increased levels of phosphorylated EGFR and phosphorylated extracellular regulated kinase (ERK) compared to control substrata, and these elevations were associated with a twofold enhancement of MSC alkaline phosphatase activity at day 7 and matrix mineralization at day 21. Surprisingly, addition of soluble EGF (sEGF) to cells cultured on tEGF substrata reduces osteogenic differentiation, even though EGFR signaling is more strongly activated in acute, short-term manner by sEGF treatment than by tEGF treatment. A striking concomitant result of the sEGF effects is near-complete downregulation of EGFR and HER2, demonstrating that the tEGF/EGFR interaction is dynamically reversible even though temporally sustained. Taken together, our results show that enhanced MSC osteogenic differentiation corresponds to a sustained combination of receptor expression and ligand presentation, both of which are maintained by tEGF.National Institutes of Health (U.S.) (Grant R01-GM059870-07)National Institutes of Health (U.S.) (Grant R01-DE 019523-10)National Institutes of Health (U.S.) (Grant P40RR017447)United Negro College Fund (Merck Postdoctoral Fellowship)Georgia Institute of Technology (FACES Fellowship)National Center for Research Resources (U.S.) (Grant P40RR017447
Gold metal detector
No full textTitle:
Preliminary Field Evaluation of a Custom-Built Titanium Antenna Locator Device
Abstract:
This document presents an initial field-based evaluation of a custom-built antenna‑type locator device designed by the author. The device is claimed to detect metallic targets at distances up to 300 meters and to indicate the approximate position of the target. The purpose of this report is to document the structure of the device, summarize field results, and provide access to video evidence and user feedback.
Introduction:
Antenna‑based locating devices have been discussed for many years, yet their performance remains controversial due to the lack of controlled scientific studies. The author has developed a new locator device with a titanium body and a multi‑chamber internal structure. Although the external design is simple, the device is reported to demonstrate capabilities not observed in commercial detection systems such as OKM or Minelab. The goal of this report is to present the device, describe its claimed performance, and provide publicly accessible documentation for further independent evaluation.
Device Structure:
The locator consists of a titanium body and three internal chambers:
- one chamber inside the handle,
- one chamber at the tip of the antenna,
- and one chamber at the rear section of the antenna.
Each chamber contains a proprietary mixture of materials selected by the author. The exact composition is not disclosed for intellectual‑property reasons. According to the author, this internal configuration contributes to the device’s sensitivity and long‑range response.
Field Performance Claims:
The author reports that the device is capable of:
- detecting metallic targets at distances up to 300 meters,
- identifying the approximate direction of the target,
- and narrowing down the final position with high accuracy.
More than 200 trainees have reportedly used the device in real field conditions, and many of them have successfully located buried metallic objects. Over 180 video demonstrations have been published online.
Evidence and Documentation:
All field tests, demonstrations, and user results are publicly available on the author’s Instagram page. The videos include real‑world tests, trainee feedback, and practical demonstrations of the device’s operation.
Instagram Page (Video Evidence):
@Sardar_radyab
Contact:
Individuals interested in observing the device in person or requesting a live demonstration may contact the author directly through Instagram.
Conclusion:
The author emphasizes that the purpose of this document is evidence, not claims. The device’s performance is presented through field results and publicly available video documentation. Further controlled scientific testing is encouraged to independently evaluate the device’s capabilities.
I am the creator of this locator device, and I offer it for sale at a price of $990. Each purchase includes complete, step‑by‑step training, from beginner to advanced. Anyone interested in acquiring the device or receiving training can contact me directly through Instagram:sardar_radya
Different Environments, Same Profession: Potential Application of it for Computer Generated Archival Description in the Archives
No full textAutor razmatra različite IT alate u obradi registraturnog i arhivskog gradiva polazeći od procesa s gradivom, bez obzira na to odvijaju li se oni u primarnoj okolini stvaratelja gradiva ili u sekundarnoj okolini nadležnog arhiva. Oslanja se na model kontinuuma zapisa, zaključak o struci T. Thomassena i propitivanje mogućnosti korištenja IT alata za opis D. Kušena. Rad se nastavlja na prethodno izrađenu komparativnu
analizu sustava za upravljanje arhivskim gradivom, no u središtu je pažnje sama funkcionalnost računalne izrade opisa gradiva bez obzira na vrstu IT alata. Autor raspravlja o početnim problemima i propituje mogućnost i smisao primjene generiranja opisa gradiva iz aplikacija te analizira zahtjev za računalno generiranim opisom na primjeru
organizacije u kojoj radi.Author considers application of different IT tools for processing of current and archival records. Author’s starting point is archival processing no matter where it occurs – in the primary environment of records creator or in the secondary environment of archival institution. Article relies on conclusions arising from records continuum model and T. Thomassen and D. Kusen writings. In the article, author focuses on development of computer generated archival description functionality of different IT tools in archives. Author discusses initial problems, examines possibilities and relevance of this functionality, and analyses user requirements on the example of particular records creator
Marcellus of Ancyra and the Arian controversy: a bishop in context
No full textThe 1980s saw an explosion of scholarly work 011 the 'Arian controversy', which
sought to rethink the categories of the controversy ab initio. Building on this, a
number of figures connected with the controversy came in for individual study in the
1990s, including the bishop Marcellus of Ancyra, who was the subject of a number of
books and articles in that decade, nearly all of which concentrated on his theology and
touched his place in the historical events of the wider controversy only tangentially.
This thesis attempts to situate Marcellus in relation to the major ecclesiastical events
of the controversy between 314 and 345, arguing that attention to his role gives a
better picture of how the 'anti-Arian' party in particular understood itself during these
years. Marcellus' skills as administrator and canonist, displayed in the 314 Synod of
Ancyra, over which he presided, form the background to the portrait of him that
emerges. His roles before and during the synod of Nicaea, before, during and after the
synods of Tyre and Jerusalem, in Rome for fifteen months during the years 339-341,
and at the synod of Sardica are examined, and furnish a number of new suggestions for
ways to understand these events. The synod of Ancyra which was moved by
Constantine to Nicaea, it is suggested, was not originally called by the emperor, but by
Alexander and his allies, with the express purpose of condemning Eusebius of
Nicomedia and his allies, with Marcellus as the intended president. Gerhard Feige's
view that Marcellus was doubtless, like Eustathius of Antioch, unhappy with the actual
synod of Nicaea, and contrary to popular assumption had little to do with the writing
of the creed (which he did not even personally sign), is endorsed, although Marcellus'
greater involvement in the writing of the canons is suggested. The synod of Tyre is
shown by careful examination of the various accounts of it, particularly that of
Eusebius of Caesarea, to have been a travesty, a view which builds on Girardet's
analysis of its views of its own authority in relation to the canonical traditions of the
time. Marcellus' role in the creation of the myth of 'Arianism' is examined, a myth
which is shown to have taken its characteristic form in Rome during the period he and
Athanasius spent there together. Marcellus is argued to be the author of the 'Western
Creed of Sardica', as Klaus Seibt suggested, which was provisionally accepted by
Ossius and Protogenes and the groups they headed as the faith of the synod, but
referred in the face of Athanasius' opposition to Julius of Rome, who vetoed it in
favour of privileging the 'ecumenical' creed of Nicaea. Marcellus' silence after
Sardica is ascribed to his refusal to desert his former pupil Photinus, while recognising
that he was generally considered theologically intolerable even by Marcellus' own
allies. Works after that synod which are sometimes ascribed to Marcellus are therefore
to be ascribed either to his school, to the continuing Eustathians at Antioch, or to some
other group. The Canons of Ancyra 314, the Contra Asterinm (not appropriately
named Opus ad Constantinum Imperatorem, since it was not originally written for the
emperor), the Letter to Julius and De Sancta Ecclesia, as well as the Western Creed of
Sardica, are argued on the other hand to be either wholly or mainly by Marcellus.
Following the line taken by Martin Tetz and Joseph Lienhard, Marcellus is argued
never to have been dropped by his former allies as such, merely himself to have
withdrawn from communion with them on account of his loyalty to Photinus; the creed
of Eugenius the Deacon was a formula which allowed those in communion with
Marcellus to repudiate Photinus without Marcellus himself having to do so
Surrogate modelling framework for probabilistic assessment of slope stability of dikes on heterogeneous soils
No full textClimatic conditions in uence peak discharges in rivers and change sea levels; therefore, attention to the safety of dikes is of ever growing importance. Macro instability is one of the dike failure mechanisms that can inundate the hinterland. Soil heterogeneity plays an important role in assessing dike safety, especially for slope stability, because it is a major source of uncertainty. To assess a dike network for safety, numerical simulations for a full probabilistic analysis can be computationally expensive. Therefore, this study investigates how to build a state-of-the-art data-driven framework from a numerical model to predict the safety margins from the macro stability of dikes. Inputs and outputs of tens of thousands D-Stability simulations were used to create a training dataset. The most relevant features were selected based on global sensitivity analysis and the representation of soil heterogeneity in the framework. The maximisation of Shannon's information entropy and the generation of the training dataset was achieved by employing a smart sampling strategy for the input parameters. The sampling strategy consists of a Latin hypercube optimised uncorrelated uniform distributed dataset combined with a correlated dataset for optimal training eciency. The uncertainty due to soil heterogeneity is represented by a Gaussian random eld with a trend. This trend is commonly determined from a geotechnical cone penetration test. With a CPT, it also is possible to nd the vertical scale of uctuation, which is parametrised by the correlation length of the uctuations in soil strength. The second-order Markov correlation function is used to represent the correlation of the random elds. The Gaussian random eld is later mapped onto 16 stacked horizontal layers to model the heterogeneous soil properties. The surrogate model consists of an ensemble of thirteen machine learning models. The most important model is a multi-layer perceptron feed forward articial neural network. The other models are histogram based gradient boosting regression trees. Random search and Bayesian optimisation are used as hyperparametrisation techniques to optimise the prediction capability is of the individual ML algorithms. Weights for each model are determined based on optimisation for error reduction for maximum performance. The surrogate predicts the factor of safety (FOS) as well as the coordinates of the slop failure circles and line of depth from the Uplift-Van method. The surrogate model ensemble that predicted FOS is quite accurate with respect to the numerical FOS of D-Stability, and yet the prediction of the failure plane is still slightly worse. A case study was used to demonstrate the performance of the framework. Despite the uncertainty of the subsoil, due to the soil heterogeneity, the surrogate was able to accurately predict the failure probability. However, the prediction of the far end circle coordinates showed lower performance due to propagating errors. Concluding, application of the framework is possible for dike reinforcement optimisation, risk-based dike safety assessment, length effect, and effcient Monte Carlo simulations.Civil Engineering | Hydraulic Structure
On the usage of wavelet-based techniques for Synthetic Image Detection
No full textWith the rise of zero-shot synthetic image generation models, such as Stability.ai's Stable Diffusion, OpenAI's DALLE or Google's Imagen, the need for powerful tools to detect synthetic generated images has never been higher. In this thesis we contribute to this goal by considering wavelet-based approaches for synthetic image detection.We will introduce multi-level discrete wavelet transform, which to the best of our knowledge has never been considered for this goal prior to this work. A similar approach that has been considered for the goal of synthetic image detection, is the multi-level wavelet packet transform used by Wolter et al. We will show that not only is our proposed approach more efficient and easier interpretable, it also performs better in a number of experimental settings and therefore forms a suitable addition to the toolset for the detection of synthetic images. Moreover, we will try and generalize performance of our used classifiers to out-of-dataset samples and see that our used classifier in general does not allow for such generalization. Finally, we will discuss the challenges of this work and offer interesting directions for further research.Applied Mathematic
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