Search results for "Head"
showing 10 items of 1640 documents
Syndrome de la fissure orbitaire supérieure post-traumatique : mise au point
2016
The traumatic superior orbital fissure syndrome is an uncommon complication of craniomaxillofacial trauma. The diagnosis is clinical and associates ophtalmoplegia (constantly at initial clinical examination), ptosis and anaesthesia of the forehead. Young men victim of road traffic accidents are most often affected. CT-scan usually shows facial and/or craniofacial fractures more or less spreading towards the superior orbital fissure. The absence of fracture seen at the X-rays does not eliminate the diagnosis. Initial management should be multidisciplinary (maxillofacial surgeons, ophthalmologists and neurosurgeons) and conducted early if possible. It combines high-dose corticosteroids and de…
The article <i>a(n)</i> in English quantifying expressions: A default marker of cardinality
2020
Certain English quantificational expressions feature what appears to be an indefinite article, e.g. a bunch, a few, a hundred. These can be divided into three types of quantifying expressions: pseudopartitives (a lot, a bunch, a ton), article-requiring quantifiers (a few, a couple, a hundred), and article-free quantifiers (three, many, several); article-free quantifiers have an article under certain circumstances, e.g. modification by an adjective (a surprising 30 …). While standard analyses would take the article in these expressions to be a D head, it is argued here that the article is not in D, nor is it singular or count, as evidenced by its (lack of an) interaction with verbal agreemen…
Homotopy limits for 2-categories
2008
AbstractWe study homotopy limits for 2-categories using the theory of Quillen model categories. In order to do so, we establish the existence of projective and injective model structures on diagram 2-categories. Using these results, we describe the homotopical behaviour not only of conical limits but also of weighted limits. Finally, pseudo-limits are related to homotopy limits.
Randomized renaming in shared memory systems.
2021
Abstract Renaming is a task in distributed computing where n processes are assigned new names from a name space of size m . The problem is called tight if m = n , and loose if m > n . In recent years renaming came to the fore again and new algorithms were developed. For tight renaming in asynchronous shared memory systems, Alistarh et al. describe a construction based on the AKS network that assigns all names within O ( log n ) steps per process. They also show that, depending on the size of the name space, loose renaming can be done considerably faster. For m = ( 1 + ϵ ) ⋅ n and constant ϵ , they achieve a step complexity of O ( log log n ) . In this paper we consider tight as well as loos…
Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests
2010
Recent train accidents have reaffirmed the need for developing a rail defect detection system more effective than that currently used. One of the most promising techniques in rail inspection is the use of ultrasonic guided waves and noncontact probes. A rail inspection prototype based on these concepts and devoted to the automatic damage detection of defects in rail head is the focus of this paper. The prototype includes an algorithm based on wavelet transform and outlier analysis. The discrete wavelet transform is utilized to denoise ultrasonic signals and to generate a set of relevant damage sensitive data. These data are combined into a damage index vector fed to an unsupervised learning…
Síndrome de Horner como manifestación de disección carotídea
2011
Caso Clínico: Un varón de 42 años se presenta con ptosis y miosis izquierda después de una historia de cefalea homolateral de 20 días de evolución, que empeora progresivamente durante los últimos días. Una angioresonancia revela disección de la arteria carótida interna. Discusión: El «síndrome de Horner doloroso» destaca como una urgencia médica por posible manifestación de una disección carotídea. Consideramos que el perfecto conocimiento de las urgencias neurooftalmológicas es de gran necesidad para el médico oftalmólogo y que estas requieren una atención multidisciplinaria para asegurar un seguimiento y tratamiento adecuado. Clinical Case: A 42-year-old man presented with ptosis and mios…
Double-Blind Study on the Effects of Steroids on Severe Closed Head Injury
1976
The results of a double-blind study on the effects of a low dose and a high dose of dexamethasone on severe closed head injury are presented. The steroid, particularly in high dose, reduced mortality, improved the neurologic course and the final outcome. Timing of steroid administration is of great importance.
Dracocephalum ruyschiana L. (Numerne, 1888)
1888
Nordischer Drachenkopf finden in lichte Kieferwaldhouge Nemerno. /// Ruiša pūķgalve, atradne: gaiša priežu meža nogāne Numernē. /// Northern Dragon-head, deposit: light pine forest slope in Numerne. [Attēls no LU Muzeja kolekcijas Herbarium Balticum (RIG I); (BOT2791_12)]
Dracocephalum ruyschiana L. (Numerne)
1936
Ruiša pūķgalve; Atradne: Latgalē, Numernē, austrumos no Puriņu mežsarga mājām. /// Northern Dragon-head, deposit: In Latgale, Numerne, east of the Purin forest rangers home. [Attēls no LU Muzeja kolekcijas Herbarium Latvicum (RIG II); (BOT1029_13)]
Dracocephalum ruyschiana L. (Suntažu pagasts)
1938
Ruiša pūķgalve, atradne: Rīgas apriņķa Suntažu pagasta Lielo Kangaru klajās dienvidu nokares piekājē, 43. km no Rīgas. /// Northern Dragon-head, deposit: Riga District Suntažu parish on the southern slope of Lielie Kangari, 43 km from Riga. [Attēls no LU Muzeja kolekcijas Herbarium Latvicum (RIG II), (BOT1029_26) ]