246 research outputs found
Modelling seasonal landslide motion: Does it only depend on fluctuations in normal effective stress?
No full textLandslide motion is often simulated with interface-like laws able to capture
changes in frictional strength caused by the growth of the pore water pressure
and the consequent reduction of the effective stress normal to the plane of sliding.
Here it is argued that, although often neglected, the evolution of all the 3D
stress components within the basal shear zone of landslides also contributes to
changes in frictional strength and must be accounted for to predict changes in
seasonal velocity. For this purpose, an augmented sliding-consolidation model is
proposed which allows for the computation of excess pore pressure development
and downslope sliding with any constitutive law with 3D stress evolution. Simulations
of idealised infinite slope models subjected to hydrologic forcing are used
to study the role of in-situ stress conditions and stress rate multiaxiality. Specifically,
a Drucker-Prager perfectly plastic model is used to replicate frictional
failure and shear deformation at the base of landslides. The model reveals that
conditions amenable to the shearing of a frictional interface are met only after
numerous rainfall cycles, that is, when multiaxial stress rates are suppressed.
In this case, the landslide is predicted to move through a seasonal ratcheting
controlled only by the effective stress component normal to the plane of sliding.
By contrast, in newly formed landslides, the multiaxial stress evolution is found
to produce further regimes of motion, from plastic shakedown to cyclic failure,
neither of which can be captured by interface-like frictional laws. Notably, the
model suggests that a transition across these regimes can emerge in response
to an aggravation of the magnitude of forcing, implying that (i) fluctuations in
climate may alter the seasonal trends of motion observed today; (ii) our ability
to quantify landslide-induced risks is impaired unless proper geomechanical
models are used to examine their long-term dynamics
Konsep diri dalam eksistensialisme Rollo May
No full textThe main purpose of this research is to describe the concept of “self" according to Rollo May, by departing from the previous concepts of “self”, in this case, from the perspective of psychology and existentialism. The results of this study was found that existentialism is a practical philosophy that brings humans to understand life with self-awareness, and anxiety leads to individual awareness as a person who exists in the world.The author uses a qualitative literature method which focuses on one of Rollo May's books, Man's Search for Himself, and assisted by other works. So the first step of the writer describes the concept of “self” which came before Rollo May, then draws a common thread from previous theories, to search for areas that have not been touched, and arrive at the concept of the importance of awareness of “self” as an existing perso
Subtrochanteric femoral shortening osteotomy combined with cementless total hip replacement for Crowe type IV developmental dysplasia: a retrospective study
No full textBACKGROUND: Total hip replacement for high dislocation of the hip presents some difficulties, considering patients' young ages, the abnormal hip anatomy and the high rate of complications. In this study, we present our experience in terms of clinical and radiological results in the treatment of Crowe type IV hips with subtrochanteric femoral shortening osteotomy and cementless total hip replacement.
MATERIALS AND METHODS: We retrospectively reviewed 15 patients with Crowe type IV hip dysplasia (two bilateral cases for a total of 17 hips) treated with cementless total hip replacement associated with shortening subtrochanteric osteotomies (nine transversal and eight Z-shape osteotomies) between March 2000 to February 2006. The mean follow-up was 88 months (range 63-133). Harris hip score, leg length discrepancy, neurological status, union status of the osteotomy and the component stability were the criteria of the evaluation. All complications were noted.
RESULTS:The mean HHS improved from 38.3 (range 32-52) to 85.6 (range 69-90). The mean preoperative leg length discrepancy was of 45 mm (range 38-70) and reduced to a mean of 12 mm (range 9-1.6) postoperatively. All osteotomies resulted healed at an average of 12.3 weeks (range 10-15). No cases of delayed union or nonunion were detected. Two patients (11%) showed early symptoms of sciatic nerve palsy which resolved uneventfully in 6 months. There was no migrations and none of the implants required revision.
CONCLUSIONS: Cementless THA with shortening subtrochanteric osteotomy is an effective method in the treatment of patients with Crowe type IV development dysplasia of the hip
La littérature de l’entre-deux et le regard sur la langue française. Enjeux linguistiques et identitaires dans l\u27oeuvre de Fouad Laroui
No full textFouad Laroui, a talented Moroccan author who writes in French and at times Dutch, is an exemplar of the in-between – in fact, the in-between-several-cultures. Like many Moroccans, he is “neither here nor there”. His original work, notable for the author’s dual belonging as well as its highly ironic vein, embodies multiple facets of multiculturalism, which he experienced during his youth at the French “lycée” in Casablanca, his trips to the western world (he now lives in Amsterdam) and through openness to European cultures. His stories in French are enriched with diverse references, resulting in a sort of patchwork – a jumble of words where the French language is present, but it is coloured by other languages and literary reminiscences (Laroui cited in Martin & Drevet 107).This article reflects on the author’s relationship with the French language and culture, by analysing the sense of identity and search for identity of his characters whose connections with France, and the western world, are marked by conflicting feelings, bearing traces of the Maghreb authors’ own sense of being torn. Is French an instrument of oppression or emancipation? The article focuses on two representative works, “Le jour où Malika ne s’est pas mariée” (2009) and “Une année chez les Français” (2010), set against the complex, multilingual backdrop of Morocco as discussed in his essay “Le drame linguistique marocain” (2011).Fouad Laroui, a talented Moroccan author who writes in French and at times Dutch, is an exemplar of the in-between – in fact, the in-between-several-cultures. Like many Moroccans, he is “neither here nor there”. His original work, notable for the author’s dual belonging as well as its highly ironic vein, embodies multiple facets of multiculturalism, which he experienced during his youth at the French “lycée” in Casablanca, his trips to the western world (he now lives in Amsterdam) and through openness to European cultures. His stories in French are enriched with diverse references, resulting in a sort of patchwork – a jumble of words where the French language is present, but it is coloured by other languages and literary reminiscences (Laroui cited in Martin & Drevet 107).This article reflects on the author’s relationship with the French language and culture, by analysing the sense of identity and search for identity of his characters whose connections with France, and the western world, are marked by conflicting feelings, bearing traces of the Maghreb authors’ own sense of being torn. Is French an instrument of oppression or emancipation? The article focuses on two representative works, “Le jour où Malika ne s’est pas mariée” (2009) and “Une année chez les Français” (2010), set against the complex, multilingual backdrop of Morocco as discussed in his essay “Le drame linguistique marocain” (2011)
Young men have always wanted to rush into print: a note on Denis Glover's writings on typography
No full textDenis Glover was a self-assessed expert on typography. This article reviews Glover’s education and training as a typographer and discusses his four accessible published articles. The article then assesses his contribution to the establishment of higher standards of type selection and use in the post-WWII period, particularly for book work. The 'new' typography he and others promoted is now the established typography.Lindsay Rollo, a retired one-time technical editor, is now an independent researcher.Correspondence about this article may be directed to the author at [email protected]</jats:p
Glover’s and Fairburn’s Inklings
No full textDenis Glover and ARD Fairburn each contributed three items to the long defunct trade house magazine Inkling: 1947– 51. The significance of the publication to New Zealand printing industry is discussed. The influence of the two authors in proselytising improved client relations and adopting higher standards of typography is assessed in the context of the literary nationalism that emerged in the late 1930s. Inkling was also an important vehicle for the illustrator and cartoonist Robert Brett.Lindsay Rollo, a retired one-time technical editor, is now an independent researcher.Correspondence about this article may be directed to the author at [email protected]
Young men have always wanted to rush into print: a note on Denis Glover's writings on typography
No full textDenis Glover was a self-assessed expert on typography. This article reviews Glover’s education and training as a typographer and discusses his four accessible published articles. The article then assesses his contribution to the establishment of higher standards of type selection and use in the post-WWII period, particularly for book work. The 'new' typography he and others promoted is now the established typography.Lindsay Rollo, a retired one-time technical editor, is now an independent researcher.Correspondence about this article may be directed to the author at [email protected]
Glover’s and Fairburn’s Inklings
No full textDenis Glover and ARD Fairburn each contributed three items to the long defunct trade house magazine Inkling: 1947– 51. The significance of the publication to New Zealand printing industry is discussed. The influence of the two authors in proselytising improved client relations and adopting higher standards of typography is assessed in the context of the literary nationalism that emerged in the late 1930s. Inkling was also an important vehicle for the illustrator and cartoonist Robert Brett.Lindsay Rollo, a retired one-time technical editor, is now an independent researcher.Correspondence about this article may be directed to the author at [email protected]</jats:p
Analisi preliminari della risposta sismica di una diga in terra
No full textNella presente nota viene affrontata la modellazione numerica in campo statico e dinamico del prototipo di una diga in terra zonata il cui modello fisico in scala ridotta sarà successivamente testato attraverso prove statiche e dinamiche in centrifuga geotecnica. La modellazione numerica eseguita in PLAXIS 2D in condizioni di deformazione piana ha consentito di definire la configurazione geometrica che garantisce un prefissato margine di sicurezza in campo statico e un prefissato livello di danno durante la fase sismica
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