El impacto de la EaD en el mundo del trabajo de los docentes universitarios: un estudio de casos

La presente ponencia intenta abordar el mundo del trabajo de los docentes de la Facultad de Ciencias Económicas de la Universidad Nacional de Río Cuarto. Los cambios sociales, económicos, políticos y tecnológicos productos del proceso de la “globalización” han impactado sobre la gestión universitaria y, particularmente sobre el trabajo docente produciendo un efecto de ruptura que se pone de manifiesto en la generación de una nueva identidad del docente universitario. La incorporación de la EaD, en la carrera de grado de nuestra facultad ha influido en la necesidad de articular la universidad con los requerimientos del mundo laboral, siendo el trabajo docente flexible, intensificado y horizontal, estos constituyen puntos de análisis que evidencias tales cambios. Finalmente se presentará el resultado de entrevistas realizadas a los docentes (profesores y tutores) de la Facultad con el relato de sus historia laborales, proceso de cambio por el que atraviesan y como el mismo influyen en la reconstrucción y construcción de identidades

Connections between Classical and Parametric Network Entropies

This paper explores relationships between classical and parametric measures of graph (or network) complexity. Classical measures are based on vertex decompositions induced by equivalence relations. Parametric measures, on the other hand, are constructed by using information functions to assign probabilities to the vertices. The inequalities established in this paper relating classical and parametric measures lay a foundation for systematic classification of entropy-based measures of graph complexity

Cohort profile: design and methods in the eye and vision consortium of UK Biobank

PURPOSE: To describe the rationale, methods and research potential of eye and vision measures available in UK Biobank. PARTICIPANTS: UK Biobank is a large, multisite, prospective cohort study. Extensive lifestyle and health questionnaires, a range of physical measures and collection of biological specimens are collected. The scope of UK Biobank was extended midway through data collection to include assessments of other measures of health, including eyes and vision. The eye assessment at baseline included questionnaires detailing past ophthalmic and family history, measurement of visual acuity, refractive error and keratometry, intraocular pressure (IOP), corneal biomechanics, spectral domain optical coherence tomography (OCT) of the macula and a disc-macula fundus photograph. Since recruitment, UK Biobank has collected accelerometer data and begun multimodal imaging data (including brain, heart and abdominal MRI) in 100 000 participants. Dense genotypic data and a panel of 20 biochemistry measures are available, and linkage to medical health records for the full cohort has begun. FINDINGS TO DATE: A total of 502 665 people aged between 40 and 69 were recruited to participate in UK Biobank. Of these, 117 175 took part in baseline assessment of vision, IOP, refraction and keratometry. A subgroup of 67 321 underwent OCT and retinal photography. The introduction of eye and vision measures in UK Biobank was accompanied by intensive training, support and a data monitoring quality control process. FUTURE PLANS: UK Biobank is one of the largest prospective cohorts worldwide with extensive data on ophthalmic diseases and conditions. Data collection is an ongoing process and a repeat of the baseline assessment including the questionnaires, measurements and sample collection will be performed in subsets of 25 000 participants every 2-3 years. The depth and breadth of this dataset, coupled with its open-access policy, will create a powerful resource for all researchers to investigate the eye diseases in later life

Periodontitis and Outer Retinal Thickness: a Cross-Sectional Analysis of the United Kingdom Biobank Cohort

\ua9 2024 American Academy of OphthalmologyPurpose: Periodontitis, a ubiquitous severe gum disease affecting the teeth and surrounding alveolar bone, can heighten systemic inflammation. We investigated the association between very severe periodontitis and early biomarkers of age-related macular degeneration (AMD), in individuals with no eye disease. Design: Cross-sectional analysis of the prospective community-based cohort United Kingdom (UK) Biobank. Participants: Sixty-seven thousand three hundred eleven UK residents aged 40 to 70 years recruited between 2006 and 2010 underwent retinal imaging. Methods: Macular-centered OCT images acquired at the baseline visit were segmented for retinal sublayer thicknesses. Very severe periodontitis was ascertained through a touchscreen questionnaire. Linear mixed effects regression modeled the association between very severe periodontitis and retinal sublayer thicknesses, adjusting for age, sex, ethnicity, socioeconomic status, alcohol consumption, smoking status, diabetes mellitus, hypertension, refractive error, and previous cataract surgery. Main Outcome Measures: Photoreceptor layer (PRL) and retinal pigment epithelium–Bruch\u27s membrane (RPE–BM) thicknesses. Results: Among 36 897 participants included in the analysis, 1571 (4.3%) reported very severe periodontitis. Affected individuals were older, lived in areas of greater socioeconomic deprivation, and were more likely to be hypertensive, diabetic, and current smokers (all P < 0.001). On average, those with very severe periodontitis were hyperopic (0.05 \ub1 2.27 diopters) while those unaffected were myopic (−0.29 \ub1 2.40 diopters, P < 0.001). Following adjusted analysis, very severe periodontitis was associated with thinner PRL (−0.55 μm, 95% confidence interval [CI], −0.97 to −0.12; P = 0.022) but there was no difference in RPE–BM thickness (0.00 μm, 95% CI, −0.12 to 0.13; P = 0.97). The association between PRL thickness and very severe periodontitis was modified by age (P < 0.001). Stratifying individuals by age, thinner PRL was seen among those aged 60 to 69 years with disease (−1.19 μm, 95% CI, −1.85 to −0.53; P < 0.001) but not among those aged < 60 years. Conclusions: Among those with no known eye disease, very severe periodontitis is statistically associated with a thinner PRL, consistent with incipient AMD. Optimizing oral hygiene may hold additional relevance for people at risk of degenerative retinal disease. Financial Disclosure(s): Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article

A possible Italian contribution in the NASA asteroid redirect robotic mission (ARRM)

As part of its Journey to Mars strategy, NASA announced the Asteroid Redirect Mission (ARM) program, composed of the Asteroid Redirect Robotic Mission (ARRM) first and then the Asteroid Redirect Crew Mission (ARCM). In the ARRM the Asteroid Redirect Vehicle (ARV), powered by advanced Solar Electric Propulsion (SEP), is deployed to rendezvous with a large NEO, being 2008 EV5 the current reference asteroid target. The ARV will characterize the asteroid, descend, and capture a boulder from the asteroid surface. As written in the NASA Formulation Assessment and Support Team (FAST) report released in February 2016, based on radar imaging and size distribution power laws that have been seen in data from laboratory experiments and spacecraft observations of other asteroids, 2008 EV5 is expected to have 3,000-16,000 boulders with 1-5 m diameters and 360-1,300 boulders with 2-3 m diameters. Once the boulder is captured, the ARV will perform a planetary defense test, by applying the enhanced gravity tractor technique, and then fly back towards Earth to take the boulder in a stable Lunar Distant Retrograde Orbit (DRO), as the DRO that Orion, launched on SLS, will target in Exploration Mission 1 (EM-1) scheduled for 2018. The Italian Space Agency (ASI) is considering the opportunity to participate to the NASA ARM program, beginning with a possible Italian contribution to the ARRM. Options include payloads and instruments to be accommodated on the ARV (such as a stereo camera and VIS-NIR spectrometer, possibly integrated in a newly designed instrument able to produce 3D hyper spectral images, dedicated to the asteroid surface and asteroid boulder characterization, a drill for sampling asteroid material, a sounding radar to study the internal structure of the asteroid), space communications and tracking (such as the potential use of the 64 meter Sardinia Radio Telescope (SRT) for a spacecraft telecommunications and tracking demonstration of ARRM, supplementing and in collaboration with NASA's Deep Space Network), and trajectory analysis (to provide low thrust trajectory analysis of ARRM). In this paper all these options will be briefly described

A possible Italian contribution in the NASA asteroid redirect robotic mission (ARRM)

As part of its Journey to Mars strategy, NASA announced the Asteroid Redirect Mission (ARM) program, composed of the Asteroid Redirect Robotic Mission (ARRM) first and then the Asteroid Redirect Crew Mission (ARCM). In the ARRM the Asteroid Redirect Vehicle (ARV), powered by advanced Solar Electric Propulsion (SEP), is deployed to rendezvous with a large NEO, being 2008 EV5 the current reference asteroid target. The ARV will characterize the asteroid, descend, and capture a boulder from the asteroid surface. As written in the NASA Formulation Assessment and Support Team (FAST) report released in February 2016, based on radar imaging and size distribution power laws that have been seen in data from laboratory experiments and spacecraft observations of other asteroids, 2008 EV5 is expected to have 3,000-16,000 boulders with 1-5 m diameters and 360-1,300 boulders with 2-3 m diameters. Once the boulder is captured, the ARV will perform a planetary defense test, by applying the enhanced gravity tractor technique, and then fly back towards Earth to take the boulder in a stable Lunar Distant Retrograde Orbit (DRO), as the DRO that Orion, launched on SLS, will target in Exploration Mission 1 (EM-1) scheduled for 2018. The Italian Space Agency (ASI) is considering the opportunity to participate to the NASA ARM program, beginning with a possible Italian contribution to the ARRM. Options include payloads and instruments to be accommodated on the ARV (such as a stereo camera and VIS-NIR spectrometer, possibly integrated in a newly designed instrument able to produce 3D hyper spectral images, dedicated to the asteroid surface and asteroid boulder characterization, a drill for sampling asteroid material, a sounding radar to study the internal structure of the asteroid), space communications and tracking (such as the potential use of the 64 meter Sardinia Radio Telescope (SRT) for a spacecraft telecommunications and tracking demonstration of ARRM, supplementing and in collaboration with NASA's Deep Space Network), and trajectory analysis (to provide low thrust trajectory analysis of ARRM). In this paper all these options will be briefly described