cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Leaf and stem anatomy of several apple cultivars, their compact mutants, and alar treated plants.
Creators: name: Liu, Alice Chen-Miao
Publisher: name: University of British Columbia
Year: 2011

description: Naturally occurring compact (spur type) apple trees (Malus sylvestris L.) were compared with standard and Alar treated trees. Stem anatomy received special attention because no comparisons had been done of the stem anatomy in standard and compact apple trees. Anatomical studies of leaves in compact mutants and in Alar treated Red Delicious are more detailed than in earlier reports. Four cultivars were used in the studies. They were Harrold Red Delicious, a compact mutant of Red Delicious, namely Starkrimson, and standard Golden Delicious, and its compact mutant Starkspur. There were three main studies in this investigation. In the first study, anatomical examinations were made on the four cultivars without Alar treatment. Starkspur Golden Delicious was found to have the thickest leaf and palisade parenchyma among the four cultivars studied. The compact type was found to have a thicker leaf, palisade parenchyma and greater mean palisade number when compared with the standard type. The effect of Alar at concentrations of 0 and 1000 ppm on the same cultivars was investigated in the second study. The suppression of terminal growth by Alar varied among the cultivars. The response to Alar was greatest with Starkspur and 50 per cent inhibition of shoot growth was observed. Starkrimson was not affected by Alar treatment. Microscopic examination revealed that there were no significant differences in cell length of collenchyma, parenchyma and pith cells or in cell diameters and tissue thickness when the samples were taken from the first internode under the growing tip. In study three, the effect of Alar and its interaction with gibberellic acid on Red and Golden Delicious were considered. In this study, comparisons were also made with the untreated compact mutants. Alar treatments of Red Delicious were found to increase thickness of total leaf, spongy parenchyma and the length of palisade cells. The latter two accounted for the increase in total thickness of Alar-treated Red Delicious leaves. Gibberellic acid stimulated the shoot growth of Golden Delicious and Starkspur by 29 per cent, but this stimulating effect was prevented by Alar.
The effects of hospitalisation on children and the implications for the hospital teacher
Creators: name: McDougall, Cynthia C
Publisher: name: University Of Tasmania
Year: 2023

description: The Effects of Hospitalisation on Children:- The Implications for the Hospital School Teacher. Cynthia C. McDougall, B.A. (Hons) presented to Tasmanian College of Advanced Education, 1977. The study examines the special psychological and educational problems of the hospitalised child from the hospital School teacher's viewpoint. It falls into three main sections:- (i) Chapter I - \A Survey of the Literature on the Effects of Hospitalisation on Children\" An historical Survey of the clinical literature 1945-65 which traces the evolution of the philosophy governing current paediatric theory and practice in regard to the case of the hospitalised child and describes the effects of hospitalisation on the child the main factors affecting his successful adjustment and the remedial measures proposed to Modify his distress. (ii) Chapter II - \"The Education of the Hospitalised Child\" This brief survey of available educational literature discusses the unique double role of the hospital school teacher - her therapeutic role in the amelioration of the hospitalised child's anxiety and her educational role in the prevention of retardation due to interrupted schooling. It also discussed the special learning problems of the student in a hospital special class. (iii) Chapter III - \"An Illustrative and Descriptive Study\" Comprises a discussion of the experiences in hospital of 37 patients in a paediatric ward - all pupils of a Hospital . Special Class. - Illustrative and supportive material for the major issues discussed in the previous two chapters is presented. The subjects' positive and negative reactions to hospital are described and their pre- and post-hospital behaviour is compared on Stotts' \"Bristol Social Adjustment Guides\" as assessed by their own class teacher.."
Contributions to the geomagnetic secular variation from a reanalysis of core surface dynamics
Creators: name: Barrois, Olivier
name: Gillet, Nicolas
name: Aubert, Julien
Publisher: name: arXiv
Year: 2023
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We invert for motions at the surface of Earth's core under spatial and temporal constraints that depart from the mathematical smoothings usually employed to ensure spectral convergence of the flow solutions. Our spatial constraints are derived from geodynamo simulations. The model is advected in time using stochastic differential equations coherent with the occurrence of geomagnetic jerks. Together with a Kalman filter, these spatial and temporal constraints enable the estimation of core flows as a function of length and time-scales. From synthetic experiments, we find it crucial to account for subgrid errors to obtain an unbiased reconstruction. This is achieved through an augmented state approach. We show that a significant contribution from diffusion to the geomagnetic secular variation should be considered even on short periods, because diffusion is dynamically related to the rapidly changing flow below the core surface. Our method, applied to geophysical observations over the period 1950-2015, gives access to reasonable solutions in terms of misfit to the data. We highlight an important signature of diffusion in the Eastern equatorial area, where the eccentric westward gyre reaches low latitudes, in relation with important up/down-wellings. Our results also confirm that the dipole decay, observed over the past decades, is primarily driven by advection processes. Our method allows us to provide probability densities for forecasts of the core flow and the secular variation.
description: Geophysical Journal International publication; Earth core; Data assimilation; Core flows inversion; 22 pages; 14 figures
On the utility of Robinson-Amitsur ultrafilters
Creators: name: Zusmanovich, Pasha
Publisher: name: arXiv
Year: 2009
Subjects: subject: Rings and Algebras (math.RA)
subject: Group Theory (math.GR)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C20, 08A30, 08B20, 08B26, 16B70, 16R10, 16S10, 16S60, 17A01, 17A50, 17B01, 17B20, 17B67, 20A10, 20E05, 20E10, 20F05, 20F22, 20F45

description: An embedding theorem for algebraic systems is presented, basing on a certain old ultrafilter construction. As an application, we outline alternative proofs of some results from the theory of PI algebras, and establish some properties of Tarski's monsters.
description: v8: cosmetical fixes
Additional file 2 of Surveillance based estimation of burden of malaria in India, 2015–2016
Creators: name: Kumar, Ashwani
name: Chaturvedi, Himanshu K.
name: Mohanty, Ajeet Kumar
name: Sharma, Surya Kant
name: Malhotra, Mantoshkumar S.
name: Pandey, Arvind
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2: Table S2. Estimated Fever Rate for all the study districts.
Some considerations regarding the grain shape of refractory raw materials
Creators: name: Möhmel, Steffen
name: Kurz, Bernhard
name: Dietze, Christin
name: Schafföner, Stefan
name: Fruhstorfer, Jens
Publisher: name: Zenodo
Year: 2021
Subjects: refractory
raw material
grain shape

description: The particle size distribution (PSD) is an essential characteristic of raw materials. This feature is taken into account by nearly all aspects related to the development and optimisation of refractory products. Nevertheless, not only the PSD itself is important but also the shape of the grains. This has long been neglected especially within the field of refractories. For e.g. building materials, road construction and abrasives it is common practice to characterise raw materials not only regarding their size distribution but also concerning their shape. Like the particle size distribution also the grain shape is already determining several important properties of the raw material itself as well as of their mixtures. This might be reflected in the behaviour of a material discharged from a silo, the miscibility of different raw materials, the flowability of a readily mixed composition into a mould, the compressibility etc. Moreover, the properties of refractory products such as porosity, strength, abrasion, corrosion as well as creep resistance might be significantly influenced not only by the size distribution but also by the shape of the raw material particles. Finally it is well known that the reactivity of a particle is determined by its specific surface area and this again is depending on the shape. Therefore in a first part of this work some general considerations regarding the definition of grain shape, its measurement and the targeted production of raw materials with certain grain shapes will be presented. A second part is then dedicated to the influence of differently shaped raw materials on the properties of refractory castables and bricks. As a result it is shown that raw materials with identical size distribution but with differently shaped grains can influence the physical, mechanical and thermo-mechanical properties of refractories.
ВЛИЯНИЕ ЧИСЛА КОРРЕКЦИЙ ТРАЕКТОРИИ УПРАВЛЯЕМОГО БОЕПРИПАСА НА ВЕРОЯТНОСТЬ ПОРАЖЕНИЯ ОДИНОЧНОЙ ЦЕЛИ
Creators: name: ДОБРЯКОВ АЛЕКСЕЙ ВИКТОРОВИЧ
name: ЗЫКОВ СТАНИСЛАВ МИХАЙЛОВИЧ
name: САННИКОВА АНАСТАСИЯ РОМАНОВНА
name: СТРЕЛЯЕВ СЕРГЕЙ ИВАНОВИЧ
name: РУСИН ВЛАДИМИР ВЛАДИМИРОВИЧ
name: ИГНАТОВ АЛЕКСАНДР ВАСИЛЬЕВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: УПРАВЛЯЕМЫЙ БОЕПРИПАС
ВЕРОЯТНОСТЬ ПОРАЖЕНИЯ
КОРРЕКЦИЯ ТРАЕКТОРИИ
ОДИНОЧНАЯ ЦЕЛЬ
GUIDED PROJECTILE
TARGET KILL PROBABILITY
PATH CORRECTION
SINGLE TARGET

description: Представлен общий вид разработанного алгоритма оценки эффективности управляемых осколочно-фугасных боеприпасов при поражении одиночной цели. Рассмотрено на конкретном примере влияние числа коррекций траектории управляемого осколочно-фугасного боеприпаса на обеспечиваемую вероятность поражения одиночной цели.
Additional file 3 of Surveillance based estimation of burden of malaria in India, 2015–2016
Creators: name: Kumar, Ashwani
name: Chaturvedi, Himanshu K.
name: Mohanty, Ajeet Kumar
name: Sharma, Surya Kant
name: Malhotra, Mantoshkumar S.
name: Pandey, Arvind
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 3: Table S3. Estimated Test Positive Rate Crude).
A stroll among effective temperatures in aging systems: limits and perspectives
Creators: name: Leuzzi, Luca
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we present a short survey on the concept of effective temperature, on its onset as a glass former vitrifies, on the various definitions in literature and their limits of applicability. An exactly solvable model glass is employed to compare effective temperatures among them and to set a criterion for the occurrence of a universal extra temperature in the framework of a "two temperature thermodynamics" for off-equilibrium aging systems. It will be shown that aging in glass formers is not a sufficient requirement. As an instance, memory effects typical of glasses are not compatible with a unique effective temperature. Yet, a reduced range of applicability can still be established and investigated.
description: 9 pages, 5 figures, contribution to the "Glass and Entropy" special volume of J. Non-Cryst. Solids
МЕТОДИКА ОПРЕДЕЛЕНИЯ ПОСЛЕДОВАТЕЛЬНОСТИ ВЫПОЛНЕНИЯ УЧЕБНЫХ ЗАДАЧ НА ТРЕНАЖЕРЕ ПТРК
Creators: name: РОМАНЮТА АЛЕКСАНДР ЕВГЕНЬЕВИЧ
name: КОВИНЬКО АНДРЕЙ ИВАНОВИЧ
name: СИГИТОВ ВИКТОР ВАЛЕНТИНОВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: ТРЕНАЖЕР
УЧЕБНАЯ ЗАДАЧА
ОПЕРАТОР ПТРК
SIMULATOR
TRAINING TASK
ATGMOPERATOR

description: Предложена методика выбора порядка следования задач по показателям их сложности и однотипности. Показано, что последовательность отработки однотипных учебных задач должна устанавливаться с учетом обеспечения максимально возможного положительного переноса навыков.
Andrzej Derdziuk OFMCap, Teologia moralna w służbie wiary Kościoła, Wydawnictwo KUL, Lublin 2010, ss. 411
Creators: name: Dziuba, Andrzej Franciszek
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 19 No 2 (2011)
Collaboratively assessing urban alerts in ad hoc participatory sensing
Creators: name: Castro-Jul, Fátima
name: Redondo, Rebeca Díaz
name: Fernández-Vilas, Ana
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Ad hoc architectures have emerged as a valuable alternative to centralized participatory sensing systems due to their infrastructureless nature, which ensures good availability, easy maintenance and direct user communication. As a result, they need to incorporate content-aware assessment mechanisms to deal with a common problem in participatory sensing: information assessment. Easy contribution encourages users participation and improves the sensing task but may result in large amounts of data, which may not be valid or relevant. Currently, prioritization is the only totally ad hoc scheme to assess user-generated alerts. This strategy prevents duplicates from congesting the network. However, it does not include the assessment of every generated alert and does not deal with low-quality or irrelevant alerts. In order to ensure users receive only interesting alerts and the network is not compromised, we propose two collaborative alert assessment mechanisms that, while keeping the network flat, provide an effective message filter. Both of them rely on opportunistic collaboration with nearby peers. By simulating their behavior in a real urban area, we have proved them able to decrease network load while maintaining alert delivery ratio.
Topological excitations in 2D spin system with high spin $s>= 1$
Creators: name: Bernatska, Julia
name: Holod, Petro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We construct a class of topological excitations of a mean field in a two-dimensional spin system represented by a quantum Heisenberg model with high powers of exchange interaction. The quantum model is associated with a classical one (the continuous classical analogue) that is based on a Landau-Lifshitz like equation, and describes large-scale fluctuations of the mean field. On the other hand, the classical model is a Hamiltonian system on a coadjoint orbit of the unitary group SU($2s {+} 1$) in the case of spin $s$. We have found a class of mean field configurations that can be interpreted as topological excitations, because they have fixed topological charges. Such excitations change their shapes and grow preserving an energy.
description: 10 pages, 1 figure
УПРАВЛЕНИЕ ПРОЦЕССОМ ДОБЫЧИ С АДАПТАЦИЕЙ К РАЗНОВИДНОСТЯМ ГОРНОЙ ПОРОДЫ
Creators: name: ЗЕЛЕНКОВ АЛЕКСАНДР ВАДИМОВИЧ
name: ШПРЕХЕР ДМИТРИЙ МАРКОВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: ОЧИСТНОЙ КОМБАЙН
МАКСИМАЛЬНЫЙ ТОК
СКОРОСТЬ ПОДАЧИ
НЕЧЕТКАЯ ЛОГИКА
SHEARER
MAXIMUM CURRENT
MOVING SPEED
FUZZY LOGIC

description: Рассмотрен перспективный способ управления электроприводом очистного комбайна, основанный на применении аппарата нечеткой логики. Разработана база правил нечёткого логического вывода в численной форме и проведено имитационное моделирование в среде MATLAB/Simulink с целью сравнения исследуемой и классической схемы управления, основанной на ПИ законе регулирования
VIII Salwatoriańskie Sympozjum Misyjne. Nie ustawać w głoszeniu Dobrej Nowiny – Bagno, 9 maja 2011 r.
Creators: name: Słupek, Roman
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 19 No 2 (2011)
Weyl submodules in restrictions of simple modules
Creators: name: Shchigolev, Vladimir
Publisher: name: arXiv
Year: 2009
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20G05

description: Let F be an algebraically closed field of characteristic p>0. Suppose that SL_{n-1}(F) is naturally embedded into SL_n(F) (either in the top left corner or in the bottom right corner). We prove that certain Weyl modules over SL_{n-1}(F) can be embedded into the restriction L(ω)\downarrow_{SL_{n-1}(F)}, where L(ω) is a simple SL_n(F)-module. This allows us to construct new primitive vectors in L(ω)\downarrow_{\SL_{n-1}(F)} from any primitive vectors in the corresponding Weyl modules. Some examples are given to show that this result actually works.
СТРУКТУРНО-ПАРАМЕТРИЧЕСКИЙ СИНТЕЗ ЦИФРОВЫХ АВТОКОЛЕБАТЕЛЬНЫХ СИСТЕМ УПРАВЛЕНИЯ
Creators: name: КОЗЫРЬ АНДРЕЙ ВЛАДИМИРОВИЧ
name: ФЕОФИЛОВ СЕРГЕЙ ВЛАДИМИРОВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: ЦИФРОВАЯ АВТОКОЛЕБАТЕЛЬНАЯ СИСТЕМА УПРАВЛЕНИЕ
РЕЛЕ
СИНТЕЗ
ФАЗОВЫЙ ГОДОГРАФ РЕЛЕЙНОЙ СИСТЕМЫ
DIGITAL SELF-OSCILLATING CONTROL SYSTEM
RELAY
SYNTHESIS
PHASE HODOGRAPH OF THE RELAY SYSTEM

description: В работе рассматривается проблема поиска структуры и оптимизации параметров цифровых автоколебательных систем управления с разрывным управлением. Дискретизация сигналов в таких системах приводит к существенным отличиям от аналогового случая, что не позволяет использовать известную классическую теорию релейных систем управления (РСУ). Предлагается методика синтеза цифровой системы управления, учитывающая дискретную реализацию уже на этапе оптимизации параметров регулятора. Приведен пример синтеза конкретной цифровой системы управления техническим объектом, демонстрирующий преимущества используемого подхода по сравнению с существующими методами.
Zero Modes of Matter Fields on Scalar Flat Thick Branes
Creators: name: Zhang, Li-Jie
name: Yang, Guo-Hong
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Zero modes of various matters with spin 0, 1 and 1/2 on a class of scalar flat thick branes are discussed in this paper. We show that scalar field with spin 0 is localized on all thick branes without additional condition, while spin 1 vector field is not localized. In addition, for spin 1/2 fermionic field, the zero mode is localized on the branes under certain conditions.
description: 11 pages,no figures
Additional file 1 of Surveillance based estimation of burden of malaria in India, 2015–2016
Creators: name: Kumar, Ashwani
name: Chaturvedi, Himanshu K.
name: Mohanty, Ajeet Kumar
name: Sharma, Surya Kant
name: Malhotra, Mantoshkumar S.
name: Pandey, Arvind
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Estimated Fever Rate in high, moderate and low malaria strata.
On Separation of Variables for Integrable Equations of Soliton Type
Creators: name: Bernatska, Julia
name: Holod, Petro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We propose a general scheme for separation of variables in the integrable Hamiltonian systems on orbits of the loop algebra $\mathfrak{sl}(2,\Complex)\times \mathcal{P}(λ,λ^{-1})$. In particular, we illustrate the scheme by application to modified Korteweg--de Vries (MKdV), sin(sinh)-Gordon, nonlinear Schrödinger, and Heisenberg magnetic equations.
description: 22 pages
VII Ogólnopolski Zjazd Pedagogiczny. Po życie sięgać nowe. Teoria a praktyka edukacyjna – Toruń, 20–21 września 2010 r.
Creators: name: Wawrzynów, Kazimiera
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 19 No 2 (2011)
Isospin dependence of the eta prime meson production in nucleon-nucleon collisions
Creators: name: Przerwa, J.
name: Moskal, P.
name: Budzanowski, A.
name: Czerwinski, E.
name: Czyzykiewicz, R.
name: Gil, D.
name: Grzonka, D.
name: Jarczyk, L.
name: Johansson, T.
name: Kamys, B.
name: Khoukaz, A.
name: Klaja, P.
name: Krzemien, W.
name: Oelert, W.
name: Piskor-Ignatowicz, C.
name: Ritman, J.
name: Rejdych, B.
name: Sefzick, T.
name: Siemaszko, M.
name: Silarski, M.
name: Smyrski, J.
name: Taeschner, A.
name: Wolke, M.
name: Wuestner, P.
name: Zdebik, J.
name: Zielinski, M. J.
name: Zipper, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A comparison of the close-to-threshold total cross section for the eta prime production in pp --> pp eta prime and pn --> pn eta prime reactions constitutes a tool to investigate the eta prime meson structure and the reaction mechanism in the channels of isospin I=0 and I=1 and may provide insight into the flavour-singlet (perhaps also into gluonium) content of the eta prime meson. In this contribution we present preliminary results of measurement of the quasi-free production of the eta prime meson in the proton-neutron collisions conducted using the COSY-11 facility.
description: Presented at 10th International Workshop on Meson Production, Properties and Interaction (MESON 2008), Cracow, Poland, 6 - 10 June 2008
ОПТИМИЗАЦИЯ ТРАЕКТОРИИ ДОСТИЖЕНИЯ ЗАДАННОЙ ОБЛАСТИ ПОИСКА ДЛЯ БЕСПИЛОТНОГО ЛЕТАТЕЛЬНОГО АППАРАТА
Creators: name: ФЕОФИЛОВ ДМИТРИЙ СЕРГЕЕВИЧ
name: ФЕОФИЛОВ СЕРГЕЙ ВЛАДИМИРОВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: БПЛА
ТРАЕКТОРИЯ ПОЛЕТА
ТЕОРЕМА КУНА-ТАККЕРА
МЕТОД НЕОПРЕДЕЛЕННЫХ МНОЖИТЕЛЕЙ ЛАГРАНЖА
UAVS
FLIGHT TRAJECTORY
KUHN-TUCKER THEOREM
METHOD OF INDEFINITE LAGRANGE MULTIPLIERS

description: Предлагается алгоритм, позволяющий выбирать кратчайшую траекторию полета БПЛА до заданной области ответственности. Решение ищется с помощью методов конечномерной оптимизации на основе теоремы Куна-Таккера. Разработанный алгоритм может быть использован в бортовом программном обеспечении. Рассмотрен поиск оптимальной траектории на конкретном примере произвольно заданных начальных координат и области, определяемой выражениями в виде неравенств.
Export and isotropic composition of organic matter in the Subantarctic and polar frontal zones of the Southern Ocean
Creators: name: Lourey, Martin John
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis aims to improve estimates of net community production and carbon export in the Subantarctic (SAZ) and Polar Frontal Zones (PFZ) of the Southern Ocean from estimates of nutrient depletion, and to use measurements of stable isotopes in suspended and sinking organic matter to assess ecosystem processes responsible for nitrate and CO2 depletion. Estimates of seasonal surface water nutrient depletion corrected for frontal movements and changes in water masses using observed quasi-linear nutrient-salinity relationships, suggest that from July to March nitrate depletion and carbon export in the SAZ (510 mmol N 111 -2 and 3,400 mmol C m-2 ) was approximately twice that of the PFZ (250 mmol N m-2and 1,600 mmol C m -2 ). Phosphate depletions were similar (29 and 24 mmol P m -2for the SAZ and PFZ, respectively) between the regions due to a lower N/P ratio of depletion in the PFZ (8.3 ¬¨¬± 5.4) than the SAZ (15.1 ¬¨¬± 2.3). Comparison with sediment trap and primary production estimates suggests that differences in nitrate depletion are the result of differences in production. However, the relative magnitude of export in the two zones remains uncertain because resupply of nutrients from the south may lower the observed nutrient depletions in the PFZ. Only 2 to 3% of the material leaving the surface reaches deep water sediment traps deployed at 800 to 1000 m, suggesting most organic carbon is remineralised and its constituent nutrients and CO2 transported to lower latitudes in the Antarctic Intermediate and Subantarctic Mode Waters.
Ergoregion instability of black hole mimickers
Creators: name: Pani, Paolo
name: Cardoso, Vitor
name: Cadoni, Mariano
name: Cavaglia, Marco
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Ultra-compact, horizonless objects such as gravastars, boson stars, wormholes and superspinars can mimick most of the properties of black holes. Here we show that these "black hole mimickers" will most likely develop a strong ergoregion instability when rapidly spinning. Instability timescales range between 10^-5 s and 1 weeks depending on the object, its mass and its angular momentum. For a wide range of parameters the instability is truly effective. This provides a strong indication that astrophysical ultra-compact objects with large rotation are black holes.
description: 10 pages, to appear in the proceedings of Black Holes in General Relativity and String Theory - August 24-30 2008 - Veli Losinj, Croatia
PALEOLIT DAVRI YODGORLIKLARI
Creators: name: ZARIPOVA, ZIYODA
Publisher: name: Zenodo
Year: 2023

description: Qadimgi tosh asri uch davrga bo’linadi: ilk paleolit, o’rta paleolit va so’nggi paleolit. O’rta Osiyodagi qadimgi tosh asri manzilgohlari va ularning madaniy qatlamlaridan topilgan ashyolarga qarab hukm chiqarilsa, bu o’lkaga odamlar juda erta kelib o’rnasha boshlaganligini bilish mumkin.
Expansion of reactome functional interaction network to allow exposure of knowledge space of understudied proteins in the context of biological pathways
Creators: name: Sanati, Nasim
name: Shorser, Solomon
name: Brunson, Timothy
name: Haw, Robin
name: Matthew, Lisa
name: Stein, Lincoln
name: D’Eustachio, Peter
name: Guanming Wu
Publisher: name: F1000 Research Limited
Year: 2020

description: Currently one of the major overarching questions in research is “how to match drug response with omics?”. Even in the era of super computation and massive data flow, a small fraction of the human genome is still understudied. Designing clinically actionable therapeutics targeting proteins encoded by these understudied genes requires an expansion of knowledge space. Reactome is the most comprehensive, open-source biological pathway knowledgebase, widely used for pathway analysis and visualization. As part of the Cutting Edge Informatics Tools program of the NIH Illuminating the Druggable Genome (IDG) Consortium, we are expanding the Reactome Functional Interaction Network to provide a pathway and network knowledge space for these understudied proteins. We have collected more than 100 highly reliable protein pairwise relationship data sources, including tissue/cancer-specific gene coexpressions from GTEx and TCGA, gene similarities from Harmonizome, and protein-protein interactions from StringDB, BioGrid, and BioPlex. We are developing a machine learning approach to integrate these data sources to predict functional relationships between understudied proteins and Reactome annotated proteins. Placing these understudied proteins in the context of Reactome pathways will facilitate generation of hypotheses for new potential targetable proteins. We have made the data accessible and navigable via our new Reactome IDG portal, idg.reactome.org.
БАЗОВЫЙ СИНТЕЗ НЕЙРОСЕТЕВЫХ РЕГУЛЯТОРОВ ДЛЯ СЛЕДЯЩИХ СИСТЕМ УПРАВЛЕНИЯ
Creators: name: ХАПКИН ДМИТРИЙ ЛЕОНИДОВИЧ
name: ФЕОФИЛОВ СЕРГЕЙ ВЛАДИМИРОВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: СИСТЕМЫ УПРАВЛЕНИЯ
ИСКУССТВЕННЫЕ НЕЙРОННЫЕ СЕТИ
НЕЙРОЭМУЛЯТОР
НЕЙРОСЕТЕВЫЕ РЕГУЛЯТОРЫ
CONTROL SYSTEMS
ARTIFICIAL NEURAL NETWORKS
NEUROMOTOR
NEURAL NETWORK CONTROLLERS

description: В работе рассматриваются некоторые подходы к обучению нейросетевых регуляторов. Затрагиваются вопросы истории их использования, классификации и актуальности применения в современной технике. На простых примерах иллюстрируются некоторые подходы к синтезу прямого и инверсного нейроэмуляторов.
ПРИМЕНЕНИЕ ЦИФРОВОГО СКОЛЬЗЯЩЕГО РЕЖИМА В СЛЕДЯЩЕМ ПРИВОДЕ
Creators: name: ПЛЫКИНА ЕКАТЕРИНА ВИКТОРОВНА
name: РУДНЕВ СЕРГЕЙ АЛЕКСАНДРОВИЧ
name: МАКАРОВ НИКОЛАЙ НИКОЛАЕВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: СЛЕДЯЩАЯ СИСТЕМА
ЦИФРОВОЙ РЕГУЛЯТОР
ОПТИМАЛЬНОЕ УПРАВЛЕНИЕ
СКОЛЬЗЯЩИЙ РЕЖИМ
TRACKING SYSTEM
DIGITAL CONTROLLER
OPTIMAL CONTROL
SLIDING MODE

description: Целью работы является формирование и сравнение разных вариантов реализации цифрового закона управления следящим приводом, сочетающих высокую точность слежения с низкой параметрической чувствительностью. Определяется особый режим движения - цифровой скользящий режим, обеспечивающий движение по поверхности переключений при дискретном времени.
MOESM11 of Transcriptome analysis of Clinopodium gracile (Benth.) Matsum and identification of genes related to Triterpenoid Saponin biosynthesis
Creators: name: Shan, Chunmiao
name: Wang, Chenkai
name: Zhang, Shengxiang
name: Shi, Yuanyuan
name: Ma, Kelong
name: Yang, Qingshan
name: Wu, Jiawen
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 11: Figure S6. (a) The ultraviolet Absorption Spectrum of the buddlejasaponin IV. (b) Standard curve of buddlejasaponin IV at 250â€‰nm.
Guidelines for the next 10 years of proteomics
Creators: name: Wilkins, Marc R
name: Appel, Ron D
name: Van Eyk, Jennifer E
name: Chung, Maxey C M
name: Görg, Angelika
name: Hecker, Michael
name: Huber, Lukas A
name: Langen, Hanno
name: Link, Andrew J
name: Paik, Young-Ki
name: Patterson, Scott D
name: Pennington, Stephen R
name: Rabilloud, Thierry
name: Simpson, Richard J
name: Weiss, Walter
name: Dunn, Michael J
Publisher: name: arXiv
Year: 2009
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: In the last ten years, the field of proteomics has expanded at a rapid rate. A range of exciting new technology has been developed and enthusiastically applied to an enormous variety of biological questions. However, the degree of stringency required in proteomic data generation and analysis appears to have been underestimated. As a result, there are likely to be numerous published findings that are of questionable quality, requiring further confirmation and/or validation. This manuscript outlines a number of key issues in proteomic research, including those associated with experimental design, differential display and biomarker discovery, protein identification and analytical incompleteness. In an effort to set a standard that reflects current thinking on the necessary and desirable characteristics of publishable manuscripts in the field, a minimal set of guidelines for proteomics research is then described. These guidelines will serve as a set of criteria which editors of PROTEOMICS will use for assessment of future submissions to the Journal.
Dynamics of a two-level system coupled to a quantum oscillator: Transformed rotating-wave approximation
Creators: name: Gan, Congjun
name: Zheng, Hang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For studying the dynamics of a two-level system coupled to a quantum oscillator we have presented an analytical approach, the transformed rotating-wave approximation, which takes into account the effect of the counter-rotating terms but still keeps the simple mathematical structure of the ordinary rotating-wave approximation. We have calculated the energy levels of ground and lower-lying excited states, as well as the time-dependent quantum dynamics. It is obvious that the approach is quite simple and can be easily extended to more complicated situation. Besides, the results are compared with the numerically exact ones to show that for weak and intermediate coupling and moderate detuning our analytic calculations are quantitatively in good agreement with the exact ones.
description: 12 pages, 5 figures
$L^{\infty}$ estimates and integrability by compensation in Besov-Morrey spaces and applications
Creators: name: Keller, Laura Gioia Andrea
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J60, 58E20

description: $L^{\infty}$ estimates in the integrability by compensation result of H. Wente fail in dimension larger than two when Sobolev spaces are replaced by the ad-hoc Morrey spaces. However, in this paper we prove that $L^{\infty}$ estimates hold in arbitrary dimension when Morrey spaces are replaced by their Littlewood Paley counterparts: Besov-Morrey spaces. As an application we prove the existence of conservation laws to solution of elliptic systems of the form $-Δu= Ω\cdot \nabla u$ where $Ω$ is antisymmetric and both $\nabla u$ and $Ω$ belong to these Besov-Morrey spaces for which the system is critical.
description: 37 pages
Self-induced parametric resonance in collective neutrino oscillations
Creators: name: Raffelt, Georg G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We identify a generic new form of collective flavor oscillations in dense neutrino gases that amounts to a self-induced parametric resonance. It occurs in a homogeneous and isotropic ensemble when a range of neutrino modes is prepared in a different flavor than the neighboring modes with lower and higher energies. The flavor content of the intermediate spectral part librates relative to the other parts with a frequency corresponding to a typical Delta m^2/2E. This libration persists in the limit of an arbitrarily large neutrino density where one would have expected synchronized flavor oscillations.
description: 9 pages, 4 figures
Finite Element, Discontinuous Galerkin, and Finite Difference Evolution Schemes in Spacetime
Creators: name: Zumbusch, Gerhard
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Numerical schemes for Einstein's vacuum equation are developed. Einstein's equation in harmonic gauge is second order symmetric hyperbolic. It is discretized in four-dimensional spacetime by Finite Differences, Finite Elements, and Interior Penalty Discontinuous Galerkin methods, the latter related to Regge calculus. The schemes are split into space and time and new time-stepping schemes for wave equations are derived. The methods are evaluated for linear and non-linear test problems of the Apples-with-Apples collection.
description: final version
ОСОБЕННОСТИ ПРИМЕНЕНИЯ ШАГОВОГО ЭЛЕКТРОДВИГАТЕЛЯ В СИСТЕМАХ НАВЕДЕНИЯ И СТАБИЛИЗАЦИИ
Creators: name: СТЕПОЧКИН АЛЕКСАНДР ОЛЕГОВИЧ
name: ГОРЯЧЕВ ОЛЕГ ВЛАДИМИРОВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: СИСТЕМА НАВЕДЕНИЯ И СТАБИЛИЗАЦИИ
ГИБРИДНЫЙ ШАГОВЫЙ ДВИГАТЕЛЬ
РЕЗОНАНСНЫЕ ЯВЛЕНИЯ В СИЛОВОЙ СИСТЕМЕ ПРИВОДА
ВЕКТОРНЫЙ РЕГУЛЯТОР
НАБЛЮДАТЕЛЬ СКОРОСТИ И ПОЛОЖЕНИЯ
GUIDANCE AND STABILIZATION SYSTEM
HYBRID STEPPER MOTOR
RESONANCE IN THE DRIVE POWER SYSTEM
VECTOR CONTROLLER
SPEED AND POSITION OBSERVER

description: Рассмотрены особенности применения шагового электродвигателя гибридного типа при реализации электрического привода наведения и стабилизации, определяемые наличием резонансных явлений в его силовой системе. Представлен алгоритм управления исполнительным двигателем, позволяющий исключить соответствующие резонансные явления. Разработан векторный регулятор момента шагового двигателя с использованием алгоритма наблюдения скорости и угла поворота, позволяющий реализовать заданные требования по точности.
New estimates of the CMB angular power spectra from the WMAP 5 yrs low resolution data
Creators: name: Gruppuso, A.
name: De Rosa, A.
name: Cabella, P.
name: Paci, F.
name: Finelli, F.
name: Natoli, P.
name: de Gasperis, G.
name: Mandolesi, N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A Quadratic Maximum Likelihood (QML) estimator is applied to the WMAP 5 year low resolution maps to compute the CMB angular power spectra at large scales for both temperature and polarization. Estimates and error bars for the six angular power spectra are provided and compared, when possible, to those obtained by the WMAP team, without finding any inconsistency. The conditional likelihood slices are also computed for the $C_{\ell}$ of all the six power spectra from $\ell =2$ to 10 through a pixel based likelihood code. Both the codes treat the covariance for $(T,Q,U)$ in a single matrix without employing any approximation. The inputs of both the codes (foreground reduced maps and related covariances) are provided by the WMAP team. The peaks of the likelihood slices are always consistent with the QML estimates within the error bars, however an excellent agreement occurs when the QML estimates are used as fiducial power spectrum instead of the best-fit theoretical power spectrum. By the full computation of the conditional likelihood on the estimated spectra, the value of the temperature quadrupole $C_{\ell=2}^{TT}$ is found to be less than $2 σ$ away from the WMAP 5 yrs $Λ$CDM best-fit value. The $BB$ spectrum is found well consistent with zero and upper limits on the B-modes are provided. The parity odd signals $TB$ and $EB$ are found consistent with zero.
description: 9 pages, 8 Figures. Accepted for publication in MNRAS
СИНТЕЗ КОРРЕКТИРУЮЩЕГО АЛГОРИТМА ДЛЯ ВЫСОКОДИНАМИЧНОГО ПРИВОДА СИСТЕМЫ ДОСТАБИЛИЗАЦИИ
Creators: name: ГОРЯЧЕВ ОЛЕГ ВЛАДИМИРОВИЧ
name: САФОНОВА СОФИЯ СЕРГЕЕВНА
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: СИНТЕЗ
КОРРЕКТИРУЮЩИЙ АЛГОРИТМ
МЕТОД ГЛУБОКОЙ ОТРИЦАТЕЛЬНОЙ ОБРАТНОЙ СВЯЗИ
ПРОПОРЦИОНАЛЬНО-ДИФФЕРЕНЦИАЛЬНЫЙ РЕГУЛЯТОР
ФИЛЬТР
SYNTHESIS
CORRECTING ALGORITHM
DEEP NEGATIVE FEEDBACK METHOD
PROPORTIONAL-DIFFERENTIAL CONTROLLER
FILTER

description: В данной работе рассмотрен синтез корректирующего алгоритма для высокодинамичного электрического следящего привода системы достабилизации: методом глубокой отрицательной обратной связи получено параллельное корректирующее устройство; для улучшения качества переходного процесса введен последовательный пропорционально-дифференциальный регулятор; выведена цифровая реализация в среде Matlab корректирующего алгоритма, объединяющего фильтры.
title: Threshold concepts and teaching programming
Creators: name: Shinners-Kennedy, Dermot
Publisher: name: University of Kent
Year: 2021

description: This thesis argues that the urge to build and the adoption of a technocratic disposition have influenced and affected the pursuit and development of a deeper understanding of the discipline of computing and its pedagogy. It proposes the introduction to the discipline of the threshold concept construct to improve both the understanding and the pedagogy. The research examines the threshold concept construct using the theory of concepts. The examination establishes the conceptual coherence of the features attributed to threshold concepts and formalises the basis for threshold concept scholarship. It also provides a refutation for critiques of threshold concepts. The examination reveals the inextricable links between threshold concepts and pedagogic content knowledge. Both rely on the expertise of reflective pedagogues and are situated at the site of student learning difficulties and their encounters with troublesome knowledge. Both have deep understanding of discipline content knowledge at their centre. The two ideas are mutually supportive. A framework for identifying threshold concepts has been developed. The framework uses an elicitation instrument grounded in pedagogic content knowledge and an autoethnographic approach. The framework is used to identify state as a threshold concept in computing. The significant results of the research are two-fold. First, the identification of state as a threshold concept provides an insight into the disparate difficulties that have been persistently reported in the computer science education literature as stumbling blocks for novice programmers and enhances and develops the move towards discipline understanding and teaching for understanding. Second, the embryonic research area of threshold concept scholarship has been provided with a theoretical framework that can act as an organising principle to explicate existing research and provide a coherent focus for further research.
A vanishing result for a Casson-type instanton invariant
Creators: name: Zentner, Raphael
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Casson-type invariants emerging from Donaldson theory over certain negative definite 4-manifolds were recently suggested by Andrei Teleman. These are defined by a count of a zero-dimensional moduli space of flat instantons. Motivated by the cobordism program of proving Witten's conjecture, we use a moduli space of PU(2) Seiberg-Witten monopoles to exhibit an oriented one-dimensional cobordism of the instanton moduli space to the empty space. The Casson-type invariant must therefore vanish.
РАЗРАБОТКА ПРОГРАММНОГО ОБЕСПЕЧЕНИЯ ДЛЯ УНИВЕРСАЛЬНОГО МИКРОПРОЦЕССОРНОГО БЛОКА УПРАВЛЕНИЯ РАЗЛИЧНЫМИ ТИПАМИ ИСПОЛНИТЕЛЬНЫХ ДВИГАТЕЛЕЙ
Creators: name: ЧЕРКАСОВА НАДЕЖДА ДМИТРИЕВНА
name: ЕФРОМЕЕВ АНДРЕЙ ГЕННАДЬЕВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: МЕХАТРОННЫЙ МОДУЛЬ
МИКРОПРОЦЕССОРНАЯ СИСТЕМА УПРАВЛЕНИЯ
ЭЛЕКТРОННЫЙ БЛОК УПРАВЛЕНИЯ
ВСТРОЕННОЕ ПРОГРАММНОЕ ОБЕСПЕЧЕНИЕ
MECHATRONICS MODULE
MICROPROCESSOR CONTROL SYSTEM
ELECTRONIC CONTROL UNIT
EMBEDDED SOFTWARE

description: В работе рассмотрено устройство универсального микропроцессорного блока управления, способного работать с различными типами исполнительных двигателей. Описана структура встроенного управляющего программного обеспечения блока, учитывающего его универсальность.
МЕТОДИКА ПРОГНОЗИРОВАНИЯ ТЕХНИЧЕСКОГО СОСТОЯНИЯ СРЕДСТВ СВЯЗИ СЕТИ СВЯЗИ СПЕЦИАЛЬНОГО НАЗНАЧЕНИЯ
Creators: name: МИЛАШЕВСКИЙ АЛЕКСЕЙ ВИКТОРОВИЧ
name: КРИВЦОВ СТАНИСЛАВ ПЕТРОВИЧ
name: ДОРОШЕНКО ГЕННАДИЙ ПЕТРОВИЧ
name: ГУРЬЯНОВ ДМИТРИЙ ИГОРЕВИЧ
name: ГУБСКАЯ ОКСАНА АЛЕКСАНДРОВНА
name: АГАФОНОВ ДМИТРИЙ АЛЕКСЕЕВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: ПРОГНОЗИРОВАНИЕ
СРЕДСТВА СВЯЗИ
СЕТЬ СВЯЗИ
ДРЕЙФ
FORECASTING
COMMUNICATION TOOLS
COMMUNICATION NETWORK
DRIFT

description: В статье предложена методика прогнозирования технического состояния средств связи сети связи специального назначения, особенность которой в том, что в отличие от известных методик прогнозирования, в ней учитывается как дрейф значений параметров, так и наличие скачкообразных изменений значений параметров.
Ks. Piotr Sroczyński, Środki dydaktyczne i warunki ich skutecznego stosowania w katechezie szkolnej, Wrocław 2008, ss. 267
Creators: name: Panuś, Tadeusz
Publisher: name: Wrocławski Przegląd Teologiczny
Year: 2020

description: Wrocławski Przegląd Teologiczny, Vol 19 No 2 (2011)
Lactate and pyruvate metabolism during hyperthermia in the dog
Creators: name: Dunn, Robert Bruce
Publisher: name: University of British Columbia
Year: 2011

description: The effects of an increase in body temperature per se on the lactate and pyruvate concentrations of the arterial blood, muscle venous blood, sagittal sinus blood, and cerebrospinal fluid were determined. Paralysed anesthetized dogs with near normal arterial pH and PC0(2) values were ventilated with a 50% 0(2), 50% N(2) mixture and heated to a temperature of 42°C and maintained at this temperature for a period of 2 hours. During hyperthermia a slight increase in lactate and pyruvate was observed in the arterial blood. However, this was not statistically significant. Also a slight increase in the concentration of these substances occurred in the muscle venous blood and sagittal sinus blood. This change, however, was parallel to that observed in the arterial blood. The lactate-pyruvate ratio of the arterial blood, muscle venous blood and sagittal sinus blood did not show any significant change and thus no increase in anaerobic processes was detected during the hyperthermic period. On the other hand the cerebrospinal fluid lactate and pyruvate increased significantly throughout the hyperthermic period but maintained a constant lactate-pyruvate ratio. The results indicate that the increase of lactate and pyruvate in the cerebrospinal fluid are a result of an increased rate of aerobic glycolysis. The fact that the increases observed in the cerebrospinal fluid lactate and pyruvate were not reflected in the cerebral venous blood indicates lactate and pyruvate may have difficulty in diffusing across the blood brain barrier and cerebral venous blood is thus a poor index of cerebral lactate and pyruvate changes.
Treaty making in Van Diemen's Land
Creators: name: Higgins, KM
Publisher: name: University Of Tasmania
Year: 2023

description: The aim of this thesis is to analyse the Aboriginal crisis in Van Diemen's Land with a view to establishing what effective efforts were made in the late 1820s and early 1830s towards realising a treaty between the colonial administration and the Aboriginal tribes of Van Diemens Land. The idea is not a new one. In 1995 Professor Henry Reynolds' published Fate of a Free People in which he argues that for a number of prominent Aboriginal leaders, at least, a de facto peace treaty was negotiated with the Colonial Government. Reynolds focuses primarily on roles played by the Aborigines in bringing their people in and their interpretation of how the crisis was concluded. This thesis does not challenge Reynolds' claims. Instead, it attempts to evaluate the Aboriginal-settler clash from the perspective of the Colonial Government, and Lieutenant-Governor Sir George Arthur in particular. Specifically it seeks to determine to what extent Arthur participated in a treaty-making process, even if he did not ultimately conclude a treaty with the Aborigines of Van Diemen's Land. This thesis examines British policies towards the Aborigines of Van Diemen's Land from the time of its official settlement in 1804 through to the effecting of the Treaty of Waitangi in January 1840. While it focuses in greatest detail on relations between the colonial government and the Aborigines of Van Diemen's Land in the 1820s and early 1830s, the study of colonial relations is broadened both chronologically (to 1840) and geographically-north to mainland Australia, and east to New Zealand-to include brief accounts of the negotiations of the Batman treaty and the Treaty of Waitangi, so as to provide a wider context by which to evaluate Governor George Arthur's efforts with treaty-making in the Van Diemen's Land.