5,308 research outputs found
Die invloed van die reg op ons Suid-Afrikaanse beskawingspatroon
Die vraag of die reg ons beskawingspatroon beïnvloed kan sonder veel omhaal van woorde bevestigend beantwoord word as ons, uitgaande van bepaalde verskynsels eie aan ons be skawingspatroon, telkens aantoon dat daar regsbepalinge be staan wat 'n conditio sine qua non is vir die bestaan van bepaalde aspekte van ons Suid-Afrikaanse lewenswyse. ’n Indrukwekkende dog vervelige lang lys van gemeenregtelike en wetteregtelike bepalinge sou dan aan u voorgehou kan word as voorwaardelik vir die bestaan van bepaalde verskyn sels. Die gevaar bestaan egter dat onder die magdom van woorde noodsaaklik vir die voltooiing van hierdie indeks van regsoorsake met voortvloeiende gevolge binne die kader van wat ons beskawingspatroon genoem word, ’n breër perspektief verskuil gaan en ander bydraende faktore misgekyk word. Deur hierdie benaderingswyse sou tewens ook ’n aanmatigend belangrike plek en invloedsfeer aan die juridiese toegedig word. Die legalistiese beskouing dat die reg as ’n soort selfgenoeg- same grootheid met een pennestreep gehele biblioteke tot rommelpapier kan reduseer, soos Von Kirchmann in sy op- spraakwekkende geskrif: „Die Wertlosigkeit der Jurispru- denz als Wissenschaft" beweer, gaan mank aan die gebrek van eensydigheid en oormatige veralgemening
Openbaring, teologie en die regswetenskap
In die jongste tyd is telkens en weer gewaarsku teen die gevare van oorspesialisasie en die hipertrofie van professionalisme. Die gemis aan ’n totaliteitsvisie wat hiermee gepaard gaan, word dan ook tereg teengegaan en wel deur aan die Wysbegeerte as die Wetenskap van die totaliteit van die kosmos in toenemende mate sy regmatige plek as wetenskapsintegreerder te gun. Hierdie grootmoedige gun van ’n plek in die son van geleerdheid kan egter ook uit bedenklike motiewe plaasvind. Die vakwetenskaplike kan nie of wil nie die plek en betekenis van sy spesifieke vak bepaal en bepeins nie en vind dit in elk geval moeilik om die verband tussen Gods Woord en sy besondere vak in duidelike perspektief te sien; vandaar dan ’n grootmoedige toelaat dat die wysbegeerte die „veritas” dien terwyl die eie ek tevrede is om die „utilitas” onderdanig te wees
Resonant tunneling in a Luttinger liquid for arbitrary barrier transmission
A numerically exact dynamical quantum Monte Carlo approach has been developed
and applied to transport through a double barrier in a Luttinger liquid with
arbitrary transmission. For strong transmission, we find broad Fabry-Perot
Coulomb blockade peaks, with a lineshape parametrized by a single parameter,
but at sufficiently low temperatures, non-Lorentzian universal lineshapes
characteristic of coherent resonant tunneling emerge, even for strong
interactions. For weak transmission, our data supports the recently proposed
correlated sequential tunneling picture and is consistent with experimental
results on intrinsic nanotube dots.Comment: 4 pages, 4 figure
Biophysical modelling of a drosophila photoreceptor
It remains unclear how visual information is co-processed
by different layers of neurons in the retina. In particular, relatively little is known how retina translates vast environmental light changes into
neural responses of limited range. We began examining this question in a bottom-up way in a relatively simple °y eye. To gain understanding of how complex bio-molecular interactions govern the conversion of light input into voltage output (phototransduction), we are building a
biophysical model of the Drosophila R1-R6 photoreceptor. Our model, which relates molecular dynamics of the underlying biochemical reactions to external light input, attempts to capture the molecular dynamics of
phototransduction gain control in a quantitative way
Application of spectral phase shaping to high resolution CARS spectroscopy
By spectral phase shaping of both the pump and probe pulses in coherent anti-Stokes Raman scattering (CARS) spectroscopy we demonstrate the extraction of the frequencies, bandwidths and relative cross sections of vibrational lines. We employ a tunable broadband Ti:Sapphire laser synchronized to a ps-Nd:YVO mode locked laser. A high resolution spectral phase shaper allows for spectroscopy with a precision better than 1 cm-1 in the high frequency region around 3000 cm-1. We also demonstrate how new spectral phase shaping strategies can amplify the resonant features of isolated vibrations to such an extent that spectroscopy and microscopy can be done at high resolution, on the integrated spectral response without the need for a spectrograph
Long range planning of radiotherapy facilities in the Netherlands
The subject of this paper is long range planning or policy development for healthcare in the Netherlands. Especially the co-ordinating function of planning will be discussed. In healthcare different actors or stakeholders are involved. Each of these actors may have their own interests, expectations, goals, and knowledge. The main goal of this paper is to discuss the alleged centralisation versus decentralisation dichotomy in healthcare strategic decision making and planning. The development of facilities for radiotherapy is used as an exemplary case for this explorative research. The radiotherapy case illustrates that a more centralised, comprehensive, and systemic way of planning and strategic decision making might be necessary to take into account and balance the different developments, which are relevant for this specific problem field, at the macro level. This kind of strategic process involves inputs from medical specialists and other experts with various disciplinary backgrounds. All relevant knowledge regarding facts and trends on demographic, social, epidemiological, technological, and therapeutic factors, and also those concerning the basic disciplines (such as biology) should be collected and analysed to obtain the insights needed. This expertise can not be found on a local or even regional level. It requires initiatives from co-ordinating boards like the Health Council, but also professional bodies play an important role, next to initiatives from influential and respected individuals
The Past Has Ears (PHE): XR Explorations of Acoustic Spaces as Cultural Heritage
Hearing is one of our most pervasive senses. There is no
equivalent to closing our eyes, or averting our gaze, for the ears. When
we think about great architectural achievements in European history,
such as ancient amphitheatres or Gothic cathedrals, their importance
is strongly tied to their acoustic environment. The acoustics of a heritage
site is an intangible consequence of the space's tangible construction
and furnishings. Inspired by the project's namesake (Phe, for the
constellation Phoenix), and the relatively recent res at Cathedrale de
Notre Dame de Paris and Teatro La Fenice opera hall, the PHE project
focuses on virtual reconstruction of heritage sites, bringing them back
from the ashes. In addressing the intangible acoustic heritage of architectural
sites, three main objectives have been identied for this research
project: Documentation, Modelling, and Presentation. In parallel, three
heritage sites are participating as case studies: Tindari Theatre (IT),
Notre-Dame de Paris Cathedral (FR), and The Houses of Parliament
(UK). The acoustics of a space is immersive, spatial, and due to the nature
of auditory perception egocentric, in contrast to visual perception
of an object, which can be observed from outside". Consequently, presentation
methods for communicating acoustic heritage must represent
the spatially immersive and listener-centric nature of acoustics. PHE will
lead development of a museum grade hardware/software prototype for
the presentation of immersive audio experiences adaptable to multiple
platforms, from on-site immersive speaker installations, to mobile XR
via smartphone applications
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