25 research outputs found
Support to parents with children with learning disablities
This dissertation attempts to understand what support from the school parents would most value when their child has been diagnosed with a learning disability. The method employed was qualitative in nature, using eight in-depth interviews with the mothers. The interviews confirmed that parents experience emotions similar to those when grieving. They also tend to feel isolated from their communities. Before embarking on a support program the school needs to recognize the depth of these emotions. The interviews also revealed that parents require timeous communication from the teacher. Parents concerns should be taken seriously or time goes by without the disability being attended to. The terminology used by professionals is often not fully understood by parents, and this causes them to feel unsure of how therapy is helping their child in the classroom and what its value is. Various guidelines are offered to support parents with regard to the above-mentioned aspects.Educational StudiesM. Ed. (Guidance and Counselling
An Anatomic Study on the Overlap Patterns of Structural Components in the Keystone Area in Noses of Koreans
ObjectivesThe keystone area has critical importance in maintaining the stability of the nasal dorsum. However, overlap patterns between structural components in the keystone area have rarely been studied, especially in the noses of Koreans.MethodsDissections were performed on 18 cadaveric noses. The length and width of the structural components in the keystone area were measured. The shape of the caudal margin of the nasal bone and the overlap patterns between the upper lateral cartilage and the nasal bone were classified.ResultsThe shape of the caudal margin of the nasal bone were classified as follows: type A, curvilinear margin; type B, paramedian retractions or "M" shape; type C, elongated midline; and type D, retracted midline. The overlap area between the upper lateral cartilage and the nasal bone was classified as follows: type Ao, crescent shape; type Bo, short midline extension; and type Co, long midline extension. The cephalocaudal length of the overlap area between the upper lateral cartilage and the nasal bone was 4-10 mm (mean, 7 mm) in the midline, and 0-7 mm (mean, 3.1 mm) in the paramedian area. The overlap width of the upper lateral cartilage with the nasal bone was 8-14 mm (mean, 9.7 mm).ConclusionThe overlap pattern of the structural components in the keystone area is variable. Therefore, a thorough understanding and a cautious evaluation of the relationships of these components before and during surgery is important in performing safe and effective nasal procedures
Evaluating threats to an endangered species by proxy: air pollution as threat to the blue swallow (Hirundo atrocaerulea) in South Africa
[Sechs Ansichten von Winterthur]
Vierseitiger, handschriftlicher Brief vom "22ten Juli 1884", bei dem der Stahlstich als Briefkopf dientBühler'sche VillaStadthausBankFriedhof KapelleWinterthurStadtkircheStahlstich v. C. Rorich & Sohn, Nbg.Datierung gemäss Fertigstellung der Kapelle Rychenberg 1870Künstler vermutlich entweder Carl Franz Rorich (1827 - 1883) oder Karl Philipp Rorich (1817 - 1890
Investigating performance improvements in wireless networks using probabilistic graphical models
Thesis (MScEng)--Stellenbosch University, 2016.ENGLISH ABSTRACT: Probabilistic Graphical Models (PGMs) have proven to be a powerful and effective
tool for predicting the behaviour of probabilistic systems. Their applicability
for improving the performance of wireless networks, where most strategies are
probabilistically founded, is therefore worth exploring. PGMs can infer states and
conditions within the network and allow protocols to act accordingly. However,
as this implies decision-making under uncertainty, investigating the application of
PGMs for this purpose would have merit.
In this work, we create an effective method for making decisions under uncertainty
by expanding the current theory of strong junction trees to allow for loopy decision
cluster graphs. However, similarly to the behaviour of loopy cluster graphs, this
method also leads to imprecise probabilities and utilities, and sub-optimal decision
strategies.
We created 3 PGM-augmented Round Robin Medium Access Control (MAC)
protocols by using different PGMs to determine which slave node the master node
should poll next. This resulted in reduced latency for packets during unequal traffic
loads. Furthermore, we created a PGM-augmented Carrier Sense Multiple Access
with Collision Avoidance (CSMA/CA) MAC protocol by using a PGM in order
to estimate the number of contending nodes and allowing the node to change the
length of its contention window accordingly. This resulted in an efficient and fair network protocol irrespective of the number of nodes in the network.AFRIKAANSE OPSOMMING: Probabilistiese Grafiese Modelle (PGM’e) het reeds bewys dat dit ‘n kragtige en
doeltreffende manier bied om die gedrag van probabilistiese stelsels te voorspel. Dit
blyk dus aantreklik om hul toepassing in radionetwerke, waar strategië probabilisites
van aard is, te ondersoek. PGM’e kan die toestande en omstandighede van die
netwerk afskat en protokolle kan daarvolgens optree. Aangesien dit egter impliseer
dat daar besluite tydens onsekerheid geneem moet word, is die ondersoek om PGM’e
te gebruik vir hierdie doel ook van belang.
In hierdie werk skep ons ‘n effektiewe metode om besluite tydens onsekerheid te
neem deur die huidige teorie van sterk aansluitingsbome uit te brei om beslissingkluster-
grafieke met lusse moontlik te maak. Soortgelyk aan kluster-grafieke, lewer
hierdie metode egter onakkurate waarskynlikhede, nut-waardes en sub-optimale
beslissing-strategië.
Ons het 3 PGM-uitgebreide ‘Round Robin’ medium toegangsbeheer-protokolle
geskep deur verskillende PGM’e te gebruik om te bepaal watter slaaf-node die
meester-node volgende moet ondervra. Hierdie lei tot verkorte transmissievertragings
van pakkies tydens ongelyke netwerkladings. Verder het ons ‘n PGM-uitgebreide
‘CSMA/CA’ medium toegangsbeheer-protokol geskep deur ‘n PGM te gebruik om
af te skat hoeveel nodusse aan die kontensie wil deelneem en die lengte van die
kontensie-venster daarvolgens aan te pas. Hierdie lei tot ‘n meer doeltreffende en billike netwerk, ongeag die aantal nodusse in die netwerk
An\ue1lisis de un plan \ufanico de cuentas como herramienta de control fiscal para el sector privado
La presente investigaci\uf3n se desarroll\uf3 con el prop\uf3sito de analizar un plan \ufanico de cuentas como herramienta de control fiscal para el sector privado. Este estudio est\ue1 enmarcado en una metodolog\ueda documental, apoyada en instrumentos, fuentes bibliogr\ue1ficas de primera y segunda mano que permitieron abordar la tem\ue1tica planteada con base a las caracter\uedsticas de un plan \ufanico de cuentas como herramienta de control fiscal para el sector privado en el sistema tributario venezolano. Por ello, se realiz\uf3 una descripci\uf3n detallada de los elementos te\uf3ricos que forman parte de la investigaci\uf3n que son base fundamental para el an\ue1lisis de la situaci\uf3n objeto de estudio desarrollado en el planteamiento del problema encuadrado en un cuerpo de conceptos y supuestos que permitieron profundizar en la tem\ue1tica planteada. Asimismo, en el marco metodol\uf3gico se delimit\uf3 el tipo y naturaleza de la investigaci\uf3n, al igual que el dise\uf1o, t\ue9cnicas para la recolecci\uf3n e interpretaci\uf3n de los datos recabados, mediante el uso de la observaci\uf3n documental, el m\ue9todo anal\uedtico, sint\ue9tico, cr\uedtico con el manejo de la informaci\uf3n a trav\ue9s de las t\ue9cnicas interpretativas de an\ue1lisis hermen\ue9utico, comparativo; que sirvieron de apoyo medular para realizar las conclusiones y recomendaciones como un aporte que pudiera permitir presentar alternativas de soluci\uf3n para mejorar el control fiscal en el sector privado en el pa\ueds a partir de la ordenaci\uf3n sistem\ue1tica de todas las cuentas del sistema contable basadas en una codificaci\uf3n uniforme asignada por el ente rector en la materia simplificando su labor fiscalizadora garantizando
mayor eficiencia en sus funciones