Search results for "visio"

Meta-analysis of Genome-Wide Association Studies Identifies Novel Loci Associated With Optic Disc Morphology

2015

Primary open-angle glaucoma is the most common optic neuropathy and an important cause of irreversible blindness worldwide. The optic nerve head or optic disc is divided in two parts: a central cup (without nerve fibers) surrounded by the neuroretinal rim (containing axons of the retinal ganglion cells). The International Glaucoma Genetics Consortium conducted a meta-analysis of genome-wide association studies consisting of 17,248 individuals of European ancestry and 6,841 individuals of Asian ancestry. The outcomes of the genome-wide association studies were disc area and cup area. These specific measurements describe optic nerve morphology in another way than the vertical cup-disc ratio, …

Relationship between functional vision and balance and mobility performance in community-dwelling older adults

2013

Background and Aims: Vision is an important prerequisite for balance control and mobility. The role of objectively measured visual functions has been previously studied but less is known about associations of functional vision. That refers to selfperceived vision-based ability to perform daily activities. The aim was to investigate the relationship between functional vision and balance and mobility performance in a community-based sample of older adults. Methods: This study is part of a Geriatric Multidisciplinary Strategy for the Good Care of the Elderly project (GeMS). Participants (576) aged 76 to 100 years (mean age 81 years, 70% women) were interviewed using a seven-item functional vis…

Postural balance and health-related factors in middle-aged and older women with injurious falls and non-fallers.

2004

Background and aims: Older jailers aged over 70 years have shown impaired balance abilities, but it is unclear if impairment in balance control can be detected among jallers who are in their 50’s and 60’s. The aim oj this study was to analyze possible differences in balance control and other health-related factors between female fallers and nonfallers aged 50–68 years. Methods: Women 50–68 years of age (N=40) who had fallen outside and needed medical attention were recruited through a larger fall accident study. Non-fallers (N=97) were women representing the same age group who had not fallen during the preceding 12 months. A battery of standing force platform balance tests were administered…

Poor vision accompanied with other sensory impairments as a predictor of falls in older women

2008

Objectives:we studied visual acuity (VA) and co-existing hearing impairment and poor standing balance as predictors of falls. Design: prospective study with 1-year follow-up. Setting: research laboratory and residential environment. Participants: 428 women aged 63‐76 years from the Finnish Twin Study on Aging. Measurements: participants were followed up for incidence of falls over 1 year. VA, hearing ability and standing balance were assessed at the baseline. The incidence rate ratios (IRR) for falls were computed using the negative binomial regression model. Results: during the follow-up, 47% of participants experienced a fall. After adjusting for age and interdependence of twin sisters, p…

Homodimeric murine interleukin-3 agonists indicate that ligand dimerization is important for high-affinity receptor complex formation.

1994

Homodimeric murine interleukin 3 (mIL-3) agonists were generated by intermolecular cystine-bonding. Steady-state binding assays and association kinetics performed at 4 degrees C using these agonists revealed specific binding to both the high- and low-affinity receptor. DSS-mediated crosslinking studies performed at 4 degrees C with agonist concentrations compatible with high-affinity receptor complex formation allowed to detect protein complexes of the alpha chain, the beta chain(s) and the high-affinity receptor complex migrating with apparent molecular weights of 90 kDa, 140 kDa, and above 180 kDa, respectively. In contrast, monomeric mIL-3 was crosslinked to the alpha chain receptor only…

Th1-induced Allergic Airway Disease Is More Susceptible To NTreg-mediated Suppression In Contrast ToTh2 Responses

2010

Audiovisual Verification in the evolution of television newsrooms: Al Jazeera and the transition from satellite to the cloud

2021

With the spread of the digital sphere and the proliferation of images from indirect sources that can be accessed by systems and users, verification routines have become essential to ensure media corporations' credibility. The advances in artificial intelligence which allow automated fact-checking (AFC) initiatives to be created help detect falsehoods, but they do not eliminate the need for human intervention. On the contrary, information professionals are necessary, and their functions increasingly include procedures such as mediating in videos and images. This study analyses the evolution of verification routines in audiovisual journalism and how new techniques have influenced the percepti…

Uso de los museos para contribuir a superar visiones deformadas de la ciencia

2017

El trabajo se centra en la aportación de la educación no reglada, y más concretamente de los museos de ciencia y tecnología, al proceso de alfabetización científica. La enseñanza de las ciencias no facilita, en general, la familiarización de los estudiantes con las estrategias propias del trabajo científico. Y lo mismo sucede con la educación científica proporcionada por museos, medios de difusión, etc. Por ello las concepciones de los estudiantes y de la ciudadanía sobre la naturaleza de la ciencia y la actividad científica muestran, habitualmente, graves deformaciones que no solo dificultan un aprendizaje significativo sino que provocan el desinterés y rechazo hacia los estudios tecnocien…

Group graded algebras and almost polynomial growth

2011

Let F be a field of characteristic 0, G a finite abelian group and A a G-graded algebra. We prove that A generates a variety of G-graded algebras of almost polynomial growth if and only if A has the same graded identities as one of the following algebras: (1) FCp, the group algebra of a cyclic group of order p, where p is a prime number and p||G|; (2) UT2G(F), the algebra of 2×2 upper triangular matrices over F endowed with an elementary G-grading; (3) E, the infinite dimensional Grassmann algebra with trivial G-grading; (4) in case 2||G|, EZ2, the Grassmann algebra with canonical Z2-grading.

Proving convexity preserving properties of interpolatory subdivision schemes through reconstruction operators

2013

We introduce a new approach towards proving convexity preserving properties for interpolatory subdivision schemes. Our approach is based on the relation between subdivision schemes and prediction operators within Harten's framework for multiresolution, and hinges on certain convexity properties of the reconstruction operator associated to prediction. Our results allow us to recover certain known results [10,8,1,7]. In addition, we are able to determine the necessary conditions for convexity preservation of the family of subdivision schemes based on the Hermite interpolation considered in [4].