959 resultados para 321016 Opthalmology and Vision Science
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A közelmúltban készült kutatásban a szerzők azt vizsgálták, hogy a kis- és középvállalkozásokban az elektronikus banki ügyintézéssel kapcsolatban milyen szokásaik, attitűdjeik és jövőképeik alakultak ki. A több mint ötszáz KKV-vezetővel készült interjú alapján elmondható, hogy a vállalkozás elektronikus ügyintézéssel kapcsolatos hozzáállása egyáltalán nem, vagy csak nagyon gyenge mértékben hozható összefüggésbe a cég objektív tulajdonságaival, például a létszámmal, az árbevétellel vagy a tevékenységi körrel. Egyértelműen látszik, hogy már az elektronikus banki ügyintézéssel kapcsolatos fogalmak értelmezése is problémát jelent a KKV-vezetők egy részénél. A tudásbeli hiányosságok pedig egyértelműen befolyásolják az e-banking attitűdöt és a használati szokásokat, pedig az elektronikus csatornákat használók elégedettsége minden vizsgált bank ügyfeleinek esetében 80% fölötti értékeket mutat. Így a legfontosabb kérdés az, hogy miként lehetne megértetni a „Szkeptikusok”-kal és a „Mérlegelők”-kel, hogy érdemes a „Haladók” klaszterébe tartozni. Az ügyfélelégedettség sikertényezői egyértelműen a biztonság, az időben és térben széles körű elérhetőség és az egyszerű használat. A válaszadók jövőképe szerint a banki szolgáltatások igénybevétele egyre inkább eltolódik majd az elektronikus csatornák irányába. Jelen cikkben a kutatás legfontosabb tanulságait mutatják be a szerzők. _________ The authors’ research was conducted to explore the ebanking attitudes, habits and vision of small and medium enterprises. By the interviews of more than 500 managers of SMEs, it is concluded that e-banking attitudes are not, or not significantly related to the objective characteristics of the enterprises, e.g. to the number of employment, the revenues or its activities. It became clear, that the interpretation of the specific e-banking terms means an important problem for some managers. The deficiencies of knowledge have direct effects on e-banking attitude and the use of electronic banking methods of the enterprises, although the value of the satisfaction level is above 80% among the customers of each examined banks. Thus, the main objective is to explain to the “Scepticals” and the “Considerers” the benefits of the “Progressives” cluster. The most important success factors of customer satisfaction are safety, availability in time and space and ease of use. According to the vision of the respondents, banking services will probably be shifted towards e-channels. In this study, the most important findings of our researches were summarized.
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This study sought to apply the concepts of inquiry-based learning by increasing the number of laboratory experiments conducted in two science classes, and to identify the challenges of this instruction for students with special needs. Results showed that the grades achieved through lab write-ups greatly improved grades overall.
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Abstract Complexity science and its methodological applications have increased in popularity in social science during the last two decades. One key concept within complexity science is that of self-organization. Self-organization is used to refer to the emergence of stable patterns through autonomous and self-reinforcing dynamics at the micro-level. In spite of its potential relevance for the study of social dynamics, the articulation and use of the concept of self-organization has been kept within the boundaries of complexity science and links to and from mainstream social science are scarce. These links can be difficult to establish, even for researchers working in social complexity with a background in social science, because of the theoretical and conceptual diversity and fragmentation in traditional social science. This article is meant to serve as a first step in the process of overcoming this lack of cross-fertilization between complexity and mainstream social science. A systematic review of the concept of self-organization and a critical discussion of similar notions in mainstream social science is presented, in an effort to help practitioners within subareas of complexity science to identify literature from traditional social science that could potentially inform their research.
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This paper introduces the concept of Open Science to policymakers and discusses how Open Science is fomenting change in the way scientific research is conducted, communicated, accessed and shared. The paper starts, firstly, by defining Open Science, identifying its pillars and describing its overall benefits. Secondly, it situates Open Science within the European Commission’s agenda for transforming science and democratising research1. Thirdly, it highlights the benefits and implications of Open Science for researchers – who are being increasingly encouraged to share research more widely and openly – and for policymakers, who have been adopting strategies and policies that encourage Open Science and open research. Importantly, this discussion paper intends to raise policymakers’ awareness to some of the reasons why researchers may or may not be supportive about Open Science. Finally, after highlighting the implications of Open Science for researchers, a reflection is made on how policymakers can implement cohesive and consistent policies and strategies that advance an Open Science agenda at the institutional, funder or national level(s).
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Mode of access: Internet.
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The structure of an animal’s eye is determined by the tasks it must perform. While vertebrates rely on their two eyes for all visual functions, insects have evolved a wide range of specialized visual organs to support behaviors such as prey capture, predator evasion, mate pursuit, flight stabilization, and navigation. Compound eyes and ocelli constitute the vision forming and sensing mechanisms of some flying insects. They provide signals useful for flight stabilization and navigation. In contrast to the well-studied compound eye, the ocelli, seen as the second visual system, sense fast luminance changes and allows for fast visual processing. Using a luminance-based sensor that mimics the insect ocelli and a camera-based motion detection system, a frequency-domain characterization of an ocellar sensor and optic flow (due to rotational motion) are analyzed. Inspired by the insect neurons that make use of signals from both vision sensing mechanisms, advantages, disadvantages and complementary properties of ocellar and optic flow estimates are discussed.
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During the 117th General Assembly of South Carolina, the Commission for Minority Affairs introduced the Student Achievement and Vision Education (SAVE) Proviso. The Proviso was so named to emphasize the importance of addressing student achievement by closing the gap that exists between majority and minority student performance and visioning students toward educational success through the implementation of the Education and Economic Development Act. This report documents the progress to date on the study; the impact of budget cuts on the CMA and complying agencies; the CMA's ability to complete the comprehensive study document using most current information; and the need for further study beyond February 2009.
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The term Artificial intelligence acquired a lot of baggage since its introduction and in its current incarnation is synonymous with Deep Learning. The sudden availability of data and computing resources has opened the gates to myriads of applications. Not all are created equal though, and problems might arise especially for fields not closely related to the tasks that pertain tech companies that spearheaded DL. The perspective of practitioners seems to be changing, however. Human-Centric AI emerged in the last few years as a new way of thinking DL and AI applications from the ground up, with a special attention at their relationship with humans. The goal is designing a system that can gracefully integrate in already established workflows, as in many real-world scenarios AI may not be good enough to completely replace its humans. Often this replacement may even be unneeded or undesirable. Another important perspective comes from, Andrew Ng, a DL pioneer, who recently started shifting the focus of development from “better models” towards better, and smaller, data. He defined his approach Data-Centric AI. Without downplaying the importance of pushing the state of the art in DL, we must recognize that if the goal is creating a tool for humans to use, more raw performance may not align with more utility for the final user. A Human-Centric approach is compatible with a Data-Centric one, and we find that the two overlap nicely when human expertise is used as the driving force behind data quality. This thesis documents a series of case-studies where these approaches were employed, to different extents, to guide the design and implementation of intelligent systems. We found human expertise proved crucial in improving datasets and models. The last chapter includes a slight deviation, with studies on the pandemic, still preserving the human and data centric perspective.
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Purpose. To analyze dry eye disease (DED) tests and their consistency in similar nonsymptomatic population samples living in two geographic locations with different climates (Continental vs. Atlantic). Methods. This is a pilot study including 14 nonsymptomatic residents from Valladolid (Continental climate, Spain) and 14 sex-matched and similarly aged residents from Braga (Atlantic climate, Portugal); they were assessed during the same season (spring) of two consecutive years. Phenol red thread test, conjunctival hyperemia, fluorescein tear breakup time, corneal and conjunctival staining, and Schirmer test were evaluated on three different consecutive visits. Reliability was assessed using the intraclass correlation coefficient and weighted kappa (J) coefficient for quantitative and ordinal variables, respectively. Results. Fourteen subjects were recruited in each city with a mean (TSD) age of 63.0 (T1.7) and 59.1 (T0.9) years (p = 0.08) in Valladolid and Braga, respectively. Intraclass correlation coefficient and J values of the tests performed were below 0.69 and 0.61, respectively, for both samples, thus showing moderate to poor reliability. Subsequently, comparisons were made between the results corresponding to the middle and higher outdoor relative humidity (RH) visit in each location as there were no differences in mean temperature (p Q 0.75) despite RH values significantly differing (p e 0.005). Significant (p e 0.05) differences were observed between Valladolid and Braga samples on tear breakup time (middle RH visit, 2.76 T 0.60 vs. 5.26 T 0.64 seconds; higher RH visit, 2.61 T 0.32 vs. 5.78 T 0.88 seconds) and corneal (middle RH, 0.64 T 0.17 vs. 0.14 T 0.10; higher RH, 0.60 T 0.22 vs. 0.0 T 0.0) and conjunctival staining (middle RH, 0.61 T 0.17 vs. 0.14 T 0.08; higher RH, 0.57 T 0.15 vs. 0.18 T 0.09). Conclusions. This pilot study provides initial evidence to support that DED test outcomes assessing the ocular surface integrity and tear stability are climate dependent. Future large-sample studies should support these outcomes also in DED patients. This knowledge is fundamental for multicenter clinical trials. Lack of consistency in diagnostic clinical tests for DED was also corroborated. (Optom Vis Sci 2015;92:e284Ye289)
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Purpose. The purpose of this work was to evaluate the potential of a novel custom-designed rigid gas permeable (RGP) contact lens to modify the relative peripheral refractive error in a sample of myopic patients. Methods. Fifty-two right eyes of 52 myopic patients (mean [TSD] age, 21 [T2] years) with spherical refractive errors ranging from j0.75 to j8.00 diopters (D) and refractive astigmatism of 1.00 D or less were fitted with a novel experimental RGP (ExpRGP) lens designed to create myopic defocus in the peripheral retina. A standard RGP (StdRGP) lens was used as a control in the same eye. The relative peripheral refractive error was measured without the lens and with each of two lenses (StdRGP and ExpRGP) using an open-field autorefractometer from 30 degrees nasal to 30 degrees temporal, in 5-degree steps. The effectiveness of the lens design was evaluated as the amount of relative peripheral refractive error difference induced by the ExpRGP compared with no lens and with StdRGP conditions at 30 degrees in the nasal and temporal (averaged) peripheral visual fields. Results. Experimental RGP lens induced a significant change in relative peripheral refractive error compared with the nolens condition (baseline), beyond the 10 degrees of eccentricity to the nasal and temporal side of the visual field (p G 0.05). The maximum effect was achieved at 30 degrees. Wearing the ExpRGP lens, 60% of the eyes had peripheral myopia exceeding j1.00 D, whereas none of the eyes presented with this feature at baseline. There was no significant correlation (r = 0.04; p = 0.756) between the degree of myopia induced at 30 degrees of eccentricity of the visual field with the ExpRGP lens and the baseline refractive error. Conclusions. Custom-designed RGP contact lenses can generate a significant degree of relative peripheral myopia in myopic patients regardless of their baselin spherical equivalent refractive error.