Performance in Kahoot! activities as predictive of exam performance.

Background: Game-based learning (GBL) is effective for increasing participation, creativity, and student motivation. However, the discriminative value of GBL for knowledge acquisition has not yet been proven. The aim of this study is to assess the value of Kahoot! as a discriminative tool for formative assessment in medical education in two different subjects.

Simple preparation of broadband UV filters based on TiO coated with aqueous extracts of native trees from the Chaco region of Argentina.

The native forest of northwestern Argentina, as part of the Chaco region, is a rich and unexploited source of phytochemical compounds for medicinal/cosmetic applications. In the present study, fruit, leaf, branch, and bark organs of the native trees Sarcomphalus mistol (Mistol, M) and Schinopsis lorentzii (Quebracho Colorado santiagueño, QC) were harvested, and aqueous plant extracts (PE) were prepared. The spectroscopic (UV-Vis absorbance, diffuse reflectance, ATR-FTIR) and antioxidant (TEAC, Folin-Ciocalteu) properties of PE were characterized and used as TiO coating material to obtain a series of TiO@PE nanocomposites.

Interaction effect of tegmen tympani and superior semicircular canal statuses on the thickness of the roof of the glenoid fossa: a cross-sectional descriptive study.

Purpose: Homogeneous development of temporal bone structures is explained by their ontogenic origin; tegmen tympani (TT) and superior semicircular canal (SSC) are related with the glenoid fossa at the temporomandibular joint (TMJ). Therefore, our objective was to determine a possible relationship between TT status (dehiscence or integrity) and the roof of the glenoid fossa (RGF) thickness; SSC status has also been considered.

Methods: This cross-sectional descriptive study was conducted in two tertiary hospitals on 95 patients (109 ears) presenting hypoacusia, facial palsy, vertigo, tinnitus, and other single or combined symptoms, and submitted to a thin-section multidetector-row computed axial tomography (CT) scan.

A Novel Approach to Enhancing Upper Extremity Coordination in Children with Autism Spectrum Disorder.

Recent studies examining children diagnosed with Autism Spectrum Disorder (ASD) have revealed kinematic markers highlighting deficits in the preparatory and online phases of upper extremity movements. In the following study, 12 children with high functioning ASD were first assessed (pre-test) on 15 trials of a reciprocal upper extremity Fitts Law target task by flexing and extending their right arm in the horizontal plane between two targets as fast and accurately as possible. Following the initial assessment, the children either continued with 30 additional trials of the target task (control) or were asked to track a sine wave template (experimental).

Development of ossification in the vertical semicircular canals: tomographic study.

Purpose: To describe the ontogeny of vertical semicircular canals using computed tomography.

Materials And Methods: We have studied 39 human fetuses aged between 17 and 38 weeks of development through multi-helicoidal CT.

Results: The first signs of ossification in the semicircular canals, superior and posterior, are from 19 weeks of development, through two primary ossification centers in each canal, which will take part in the formation of the outer cover oriented towards the middle and posterior brain fossae, respectively.

Influence of Sex and Age on Posterior Semicircular Canal Thickness.

Objective: The aim of this study is to determine whether sex and age influence posterior semicircular canal (PSC) thickness.

Methods: This observational study was conducted in 3 tertiary hospitals. The minimal distance between the PSC and the posterior cranial fossa (PSC thickness) was estimated by thin-section multidetector row computed axial tomography (CAT) scan of the temporal bones.

Ontogenetic explanation for tegmen tympani dehiscence and superior semicircular canal dehiscence association.

Objectives: To analyze the ontogeny of the superior semicircular canal and tegmen tympani and determine if there are common embryological factors explaining both associated dehiscence.

Methods: We analyzed 77 human embryological series aged between 6 weeks and newborn. Preparations were serially cut and stained with Masson's trichrome technique.

Association Between Tegmen Tympani Status and Superior Semicircular Canal Pattern.

Objective: Detecting and quantifying the possible association between tegmen tympani (TT) status and superior semicircular canal (SSC) pattern.

Design: Observational study.

Setting: Study conducted in three tertiary Spanish hospitals.

[Peculiarities in the development of the superior semicircular canal].

Objective: Our objective was to study the ontogeny of the superior semicircular canal in order to describe its peculiarities.

Methods: We analyzed 76 series of human embryos aged between 32 days (6mm) and newborns. The samples were cut serially and stained using Martin's trichrome technique.

Radiological patterns of the posterior semicircular canal.

Objectives: The identification and definition of the radiological patterns of the posterior semicircular canal (PSC), with a view to obtain readily applicable conclusions.

Design: The parietal morphology of the PSC has been studied by multi-slice helical computed tomography (Philips Brilliance 6). We have determined the distribution of the different types of bone cover of the PSC, taking some previously notified, standardised measurements of normality as reference.

Congenital dehiscence in the posterior semicircular canal.

Hypothesis: Posterior semicircular canal dehiscence (PSCD) may be of congenital origin.

Background: PSCD is characterized by the lack of bone coverage, which results in its lumen being exposed to the meninges of the posterior cranial fossa or to the gulf of the jugular vein. It has an incidence of 0.

Effect of semicircular canal dehiscence on contralateral canal bone thickness.

Objectives: Our objective was to determine if the existence of dehiscence in the superior or posterior semicircular canal was associated with the thinning of the bone roof in the rest of the vertical canals (superior or posterior).

Methods: The thickness of the superior and posterior semicircular canals contralateral to a dehiscence was studied using computerized tomography and compared statistically.

Results: When a superior semicircular canal had a dehiscence, the contralateral canal showed a significant mean decrease in its thickness of 0.

Radiological patterns of the bony roof of the superior semicircular canal.

Objectives: To study the radiological patterns of the bony roof of the superior semicircular canal with a view for obtaining readily applicable conclusions.

Design: 84 patients (163 petrous bones) have been studied by Multi-slice Helical Computed tomography (Philips Brilliance 6). We have determined the distribution of the different types of bone cover of the superior semicircular canal, taking some previously notified, standardised measurements of normality as reference.

[Defect of the bony roof in the superior semicircular canal and its clinical implications].

Introduction And Objective: The aetiology of the superior semicircular canal dehiscence is currently unknown. Our objective was to analyse and discuss different hypotheses about the origin of this pathology.

Methods: In this study performed on 295 temporal bones, one case of partial alteration of the bony roof in the right superior semicircular canal was described from the anatomical and radiological points of view, and compared with the temporal bone on the other side.

Development of the stapedius muscle canal and its possible clinical consequences.

Objective: To study the development of the stapedius muscle canal in human embryos and foetuses.

Materials And Methods: 46 temporal bones with ages between 9mm and new-borns were studied. The preparations were dyed using Martins' trichrome technique.

Intimal thickenings in the inferior epigastric artery and coronary bypass.

Objective: To investigate the relationship between the inferior epigastric artery and the development of pathological intimal thickenings.

Material And Methods: The inferior epigastric artery structure was studied with conventional histology techniques, histochemistry, immunohistochemistry and morphometry.

Results: The inferior epigastric artery develops 2 types of intimal thickenings: physiological and pathological.