Search results for " skull"
showing 10 items of 25 documents
Ten-year Experience with the Supraorbital Subfrontal Approach through an Eyebrow Skin Incision
2005
Abstract OBJECTIVE: More than ever before, the priority in contemporary neurosurgery is to achieve the greatest therapeutic effect while causing the least iatrogenic injury. The evolution of microsurgical techniques with refined instrumentation and illumination and the enormous development of preoperative and intraoperative diagnostic tools enable neurosurgeons to treat different lesions through limited and specific keyhole approaches. METHODS: Based on our surgical experience, the technique of supraorbital subfrontal craniotomy is described in detail in this article. After an eyebrow skin incision is made, a limited supraorbital craniotomy is performed with a width of 15 to 25 mm and a hei…
Grist for Riedl's mill: A network model perspective on the integration and modularity of the human skull
2013
This research project was supported by Grant BFU2008‐00643 to D.R.G. from the Spanish Ministerio de Ciencia e Innovacion as well as project CGL2012‐37279 to M.B., from the Spanish Ministerio de Economia y Competitividad.
Effects of maxillary protraction determined by laser metrology
1990
In this work we studied some of the main effects of the maxillary protraction orthopedic device. The initial dento-craniofacial reactions induced by maxillary protraction similar to that commonly employed in clinical practice are reported. The fringe counting holographic interferometry technique is used to measure displacements. The experiments were performed on a dried human skull; traction application points were situated over the permanent lateral incisors or over the first permanent molars. The results fundamentally reveal an anterior rotation of the dentomaxillary complex, more intense when traction is applied to the lateral incisors, as shown by a more marked extrusion of the molars i…
A preliminary correlation study between skull structures and OSAS in adults
2017
Landmark identification on direct digital versus film-based cephalometric radiographs: A human skull study
2002
The purpose of this study was to investigate differences in landmark identification on vertically scanned, direct digital and conventional (18 x 24 cm) cephalometric radiographs. Eight observers, all orthodontists or postgraduate orthodontic students, recorded 6 landmarks twice on 3 digital and 3 conventional cephalograms obtained from 3 human skulls in a standardized fashion. Digital images were displayed on a 15.1-in TFT monitor in 3:1 mode (20 x 26 cm). Recordings were transferred into standardized coordinate systems and evaluated separately for each coordinate. After correcting for magnification, precision was assessed with Maloney-Rastogi tests, and intraobserver and interobserver repr…
The Human Biodiversity in the Middle of the Mediterranean. Study of native and settlers populations on the Sicilian context
2020
[IT] Negli ultimi 200.000 anni, la specie umana si è diffusa in tutta la Terra, adattando la sua morfologia e fisiologia a un'ampia gamma di habitat. Lo scheletro umano ha quindi registrato i principali effetti ambientali e di conseguenza i reperti scheletrici assumono grande importanza nell'indagine dei processi evolutivi. Oggi le moderne tecniche di indagini quantitative delle principali caratteristiche morfologiche consentono di metterle in relazione con la variabilità genetica. La posizione geografica della Sicilia, l'isolamento e la sua lunga e dinamica storia di colonizzazione (diversi e numerosi contributi culturali e biologici) hanno creato un contesto peculiare che consente uno stu…
A rare case of solitary brain Langerhans cell histiocytosis with intratumoral hemorrhage in a patient affected by Turner syndrome
2016
Background: Langerhans cell histiocytosis (LCH) is a rare disease involving clonal proliferation of cells with characteristics similar to bone marrow-derived Langerhans cells. The case of a young woman, affected by Turner syndrome and a solitary intraparenchymal LCH associated with an osteolytic lesion of the overlying skull, is presented. Case Description: The patient, with an insidious history of headache and a growing soft mass in the left frontal region, presented with a sudden generalized tonic-clonic epileptic seizure. Neuroradiological investigations showed an osteolytic lesion of the left frontal bone and an underlying brain lesion associated with recent signs of bleeding. The patie…
Holographische Untersuchung zur Darstellung initialer Verformungen eines mazerierten menschlichen Schädels unter der Einwirkung einer orthopädischen …
1995
Das Phanomen der Oberkieferverformung und der resultierenden Wachstumsveranderungen unter der orthopadischen Wirkung des Headgears ist sehr komplex und wenig erforscht. Ziel der vorliegenden Arbeit war es, mit Hilfe der holographischen Interferometrie die initiale Knochenverformung des Oberkieferkomplexes nach der Einwirkung verschiedener Zugrichtungen eines Headgears zu untersuchen. Ein oberhalb, unterhalb und durch das Widerstandszentrum der ersten bleibenden Molaren gerichteter okzipitaler, zervikaler und Kombinationszug wurde mit 560 g an einem mazerierten menschlichen Schadel simuliert. Die Registrierung der dabei stattfindenden knochernen Veranderungen fand mit Hilfe der Laserholograp…
LA MODALIDAD EPISTÉMICA ASERTIVA COMO RECURSO RETÓRICO EN NOTICIAS CIENTÍFICAS: EL CASO DEL HALLAZGO PALEONTOLÓGICO DEL HOMBRE DE ORCE
2007
La publicación original está disponible en http://www.upv.es/dla/revista/
Skull mania. Le dinamiche di un motivo iconografico tra arte, moda e design
2013
Il motivo iconografico del teschio è uno dei più antichi e ricorrenti nella tradizione artistica. Nella contemporaneità questa immagine, oltrepassando i confini dell’arte, prolifera nella sfera della moda e del design. Questa migrazione ha il punto di svolta in For the Love of God (2007), il teschio intarsiato di diamanti, opera di Damien Hirst, a cui si è ispirato lo stilista Alexander McQueen per le sue creazioni di moda e accessori. Diffondendosi nella cultura di massa l’immagine del teschio acquista una vita autonoma, obliando la sua derivazione artistica, e caricandosi di nuove plurime valenze simboliche che rendono evidenti le contaminazioni tra arte, moda e design proprie della cultu…