A new lighting method for cultural materials using selective chromatic light

2021 ◽  
pp. 147715352110254
Author(s):  
M Gargano ◽  
S Scotuzzi ◽  
EM Angelin ◽  
O Santilli ◽  
JM del Hoyo-Meléndez ◽  
...  
Keyword(s):  
Light Sensitivity ◽  
The Other ◽  
Critical Component ◽  
Lighting System ◽  
Light Stability ◽  
Different Types ◽  
Colour Changes ◽  
Museum Environment ◽  
Lighting Systems

Lighting is a critical component in a museum environment because, together with temperature, relative humidity and pollutants, it is one of the damaging factors able to produce long‐term, cumulative and irreversible photodegradation processes. To correctly preserve artworks, limiting illuminance and exposure is recommended, allowing on one side the preservation of the object, but on the other limiting the display of the object, especially for sensitive materials. The aim of this research was to develop, evaluate and compare a new lighting method for paintings and other cultural materials to improve the experience of the objects whilst reducing the risks from exposure. The idea is based on the use of selective chromatic light where the component of the spectrum absorbed by the materials is removed. This absorption is the principal cause of photodegradation. The proposed lighting system can be obtained by combining different types of projection systems together with filtering using an appropriate light source. Six methods of light projection have been compared for two mock-ups simulating real artworks with high and medium light sensitivity. The efficiency of illumination increased from 30% to 111% compared to standard lighting systems. Light stability tests were additionally performed, finding reduced colour changes compared to traditional lighting systems.

BIOMEDICAL RESEARCH PAYS OFF

PEDIATRICS ◽  
1977 ◽  
Vol 59 (6) ◽  
pp. 832-832
Author(s):  
J. H. Comroe ◽  
R. D. Dripps
Keyword(s):  
Research And Development ◽  
Biomedical Research ◽  
Basic Research ◽  
The Other ◽  
Human Diseases ◽  
Different Types ◽  
Living Organisms

Our analysis showed . . . 41% of all work judged to be essential for later clinical advance was not clinically oriented at the time it was done. The scientists responsible for these key articles sought knowledge for the sake of knowledge. . . . Our data show that clinical advance requires different types of research and development and not one to the exclusion of the other. . . . Our data compel us to conclude (1) that a generous portion of the nation's biomedical research dollar should be used to identify and then provide long term support for creative scientists whose main goal is to learn how living organisms function, without regard to the immediate relation of their research to specific human diseases; and (2) that basic research, as we have defined it, pays off in terms of key discoveries almost twice as handsomely as other types of research and development combined.

Lighting System Preferences for VDT Stands with LCD Screens

2000 ◽  
Vol 44 (21) ◽  
pp. 3-499-3-499
Author(s):  
Agnieszka Wolska
Keyword(s):  
Visual Performance ◽  
Lighting System ◽  
Dark Light ◽  
Lighting Conditions ◽  
Different Types ◽  
Lighting Systems ◽  
New Generation

There are different types of lighting systems suitable for VDT work, which create different interior appearances with respect to the main lighting parameters at the recommended levels at the same time. A new generation of VDT screens, flat panels, which produce the image on the screen in a completely different way, may demand different lighting conditions than CRT screens. The aim of the study was to model different lighting systems for VDT work with LCD screens and their influence on the users' preferences and visual performance. The results of the study showed that the most preferred lighting system for VDT work with LCD screens is direct lighting realized by “dark-light” luminaires.

scholarly journals Greft İmplantasyonunda İnci Kesesi Oluşumunun Dört Midye Türünde (Unionidae) Karşılaştırılması

2019 ◽  
Vol 7 (10) ◽  
pp. 1699
Author(s):  
Hülya Şereflişan
Keyword(s):  
Survival Rate ◽  
Mantle Cavity ◽  
The Other ◽  
Tissue Slices ◽  
Mantle Tissue ◽  
Pearl Sac ◽  
Different Types ◽  
Pearl Formation ◽  
Graft Implantation

In this study, the most suitable mantle part and host mussel species for pearl sac formation were determined. A total of 400 mussels, consisting of four different types (Unio terminalis, Potamida littoralis, Leguminaia wheatleyi and Anodonta pseudodopsis) were used. The average dorso-ventral lengths of the mussels were respectively; 7.89±0.25; 7.28±0.38; 10.68±0.27 and 11.14±0.34 cm. Mantle tissue slices in the size of 3×3 mm obtained from the pallial edge of mantle tissue were used as grafts. Two different mantle sections were identified for graft implantation, one being the mantle cavity and the other was incisions on the mantle tissue. At the end of the three-month pearl culture, the mantle cavity section was identified as the best graft implant site. U. terminalis was determined as the most successful species in terms of survival rate and pearl formation. P. littoralis was the second successful species and L. wheatleyi was the lowest among the species. This study is a guide for long-term pearl production on nacre thickness and quality which are considered important in pearl production.

scholarly journals Balancing adaptation and innovation for resilience in healthcare – a metasynthesis of narratives

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hilda Bø Lyng ◽  
Carl Macrae ◽  
Veslemøy Guise ◽  
Cecilie Haraldseid-Driftland ◽  
Birte Fagerdal ◽  
...  
Keyword(s):  
Grounded Theory ◽  
Narrative Inquiry ◽  
Conceptual Understanding ◽  
Transitional Care ◽  
The Other ◽  
Short Term ◽  
Lower Priority ◽  
Healthcare Settings ◽  
Different Types

Abstract Background Adaptation and innovation are both described as instrumental for resilience in healthcare. However, the relatedness between these dimensions of resilience in healthcare has not yet been studied. This study seeks to develop a conceptual understanding of adaptation and innovation as a basis for resilience in healthcare. The overall aim of this study is therefore to explore how adaptation and innovation can be described and understood across different healthcare settings. To this end, the overall aim will be investigated by identifying what constitutes adaptation and innovation in healthcare, the mechanisms involved, and what type of responses adaptation and innovation are associated with. Methods The method used to develop understanding across a variety of healthcare contexts, was to first conduct a narrative inquiry of a comprehensive dataset from various empirical settings (e.g., maternity, transitional care, telecare), that were later analysed in accordance with grounded theory. Narrative inquiry provided a contextually informed synthesis of the phenomenon, while the use of grounded theory methodology allowed for cross-contextual comparison of adaptation and innovation in terms of resilience in healthcare. Results The results identified an imbalance between adaptation and innovation. If short-term adaptations are used too extensively, they may mask system deficiencies and furthermore leave the organization vulnerable, by relying too much on the efforts of a few individuals. Hence, short-term adaptations may end up a barrier for resilience in healthcare. Long-term adaptations and innovation of products, processes and practices proved to be of a lower priority, but had the potential of addressing the flaws of the system by proactively re-organizing and re-designing routines and practices. Conclusions This study develops a new conceptual account of adaptation and innovation as a basis for resilience in healthcare. Findings emerging from this study indicate that a balance between adaptation and innovation should be sought when seeking resilience in healthcare. Adaptations can furthermore be divided into short-term and long-term adaptations, creating the need to balance between these different types of adaptations. Short-term adaptations that adopt the pattern of firefighting can risk generating complex and unintended outcomes, but where no significant changes are made to organization of the system. Long-term adaptations, on the other hand, introduce re-organization of the system based on feedback, and therefore can provide a proactive response to system deficiencies. We propose a pattern of adaptation in resilience in healthcare: from short-term adjustments, to long-term reorganizations, to innovations.

Nostalgic neighborhood belongings: Theorizing the interrelationship among nostalgias, belongings and neighborhood changes

2021 ◽  
pp. 003802612110294
Author(s):  
Clément Colin
Keyword(s):  
Empirical Research ◽  
The Other ◽  
The Past ◽  
Physical Environments ◽  
The Social ◽  
Different Types ◽  
The One ◽  
Depth Interviews

Depending on one’s socio-territorial contexts, age, and time spent residing in the same place, the spatial-temporal experience of belonging is lived differently. Within this framework, this article looks at perspectives of neighborhood belonging in long-term residents aged 65 years and older. Based on the narratives of 51 people from three neighborhoods of Valparaíso, Chile, who participated in the 2019 workshops and/or in-depth interviews, I identify different types of nostalgic senses of belonging; and examine the social and spatial conditions that influence their formation. From this empirical research, I argue that these belongings are based on daily practices that refer to the past neighborhood and that, at the same time, are embodied in their current materialities. The results show, on the one hand, the role of nostalgia in the formation of a belonging, from the past to the present; and, on the other, the influence of place in these experiences. From the above, this article contributes to the conceptualization of the material dimension of nostalgic belongings and their interrelationships among nostalgias, belongings, and changes in social and physical environments.

scholarly journals Low-cost circular LED dome lighting system for Insecta (Hexapoda) image capture in self-assembly stereomicroscope

2021 ◽  
Vol 14 ◽  
pp. e957
Author(s):  
André da Silva Ferreira ◽  
Freddy Bravo ◽  
Ivan Castro
Keyword(s):  
High Resolution ◽  
Self Assembly ◽  
Low Cost ◽  
The Other ◽  
Lighting System ◽  
Image Capture ◽  
Other Hand ◽  
3D Printers ◽  
High Resolution Images ◽  
Lighting Systems

The use of high-resolution images in studies of morphology, taxonomy and systematics has been increasingly frequent, especially in Insecta. However, suitable lighting systems are still very expensive and/or difficult to use. On the other hand, currently the use of 3D printers has helped to make lighting equipment more accessible for researchers to equip their laboratories. Here we present a low-cost circular LED dome lighting system for capturing scientific micro and macro photography on a self-assembly stereomicroscope. We also present the necessary components for making the dome, as well as the elements used to capture the photographs.

Historical trends in spring ice breakup for the Aura River in Southwest Finland, AD 1749–2018

The Holocene ◽  
2019 ◽  
Vol 29 (6) ◽  
pp. 953-963 ◽  
Author(s):  
Stefan Norrgård ◽  
Samuli Helama
Keyword(s):  
Time Series ◽  
18Th Century ◽  
The Other ◽  
Historical Trends ◽  
Single Time ◽  
Climate Research ◽  
Ice Breakup ◽  
Different Types ◽  
Long Term Trends

Ice breakup (IBU) observations have been recorded for Aura River in Turku, southwest Finland, since the mid-18th century. The latest long-term investigation covered the period 1749–1906, but the series contains several biases. In this article, we present a fully revised and extended IBU series (1749–2018) of Aura River for climate research purposes. Instead of typical univariate IBU data (a single time series with one data point per year), this series includes three different types of IBU data. These are the initial observations of the ice starting to break up (IBU1), the river recorded as free from ice within city limits (IBU2) and, finally, the arrival of the ice from behind the Halinen dam, the so-called Halinen ice (IBU3). The IBU1 series shows negative, statistically significant long-term trends since 1749. While the other two phenological events also exhibit negative long-term trends, indicative of earlier and warmer springs towards the present day, their trends are not significant over multi-centurial scales. The IBU2 series is the only series covering the entire period, and it shows a significant negative trend towards earlier breakups (16 days) between 1919 and 2018. Consequently, breakups in March, which were extremely rare before the 1900s, have become common, while breakups in May (previously once per decade) have not occurred since 1881. These results are indicative of sub-seasonal trends in the breakups. Our results also confirm defects in the previous time series, which shows a bias of up to 16 days.

scholarly journals Payments under the Common Agricultural Policy as a determinant of development of different types of agricultural holdings

Management ◽  
2016 ◽  
Vol 20 (2) ◽  
pp. 442-456
Author(s):  
Andrzej Czyżewski ◽  
Łukasz Kryszak
Keyword(s):  
Economic Development ◽  
Agricultural Policy ◽  
The Other ◽  
Return On Equity ◽  
Agricultural Income ◽  
Different Types ◽  
The Common ◽  
Economic Size

Summary The main aim of this article was to investigate the influence of payments under the CAP on economic development of different types of farms. The main source of data was FADN database. A period of research covers the years of 2004-2013. The article referred to previous results of research in the field of payments and its role for the economic situation of agricultural holdings. Then the share of payments in agricultural income was examined as well as the use of subsidies on investments. The process of accumulation, both in real and theoretical approach, and influence of this phenomenon on change of economic size were also presented. In addition the paper analysed the changes in return on equity in order to show the changes in economic efficiency of farms. The analyses that were conducted showed a significant role of payments in the formation of incomes and accumulation. On the other hand payments may lead to decrease in efficiency. In long term there is a risk that dependence on payments in functioning of farm will be excessive.

scholarly journals SAVING ENERGY: A REVIEW ON ENERGY SAVINGS IN LIGHTING BUILDINGS IN AN INSTALLATION

2017 ◽  
Vol 5 (11) ◽  
pp. 290-294
Author(s):  
Vijayant Kumar
Keyword(s):  
Energy Saving ◽  
Energy Savings ◽  
Operating Time ◽  
Lighting System ◽  
End User ◽  
Light Production ◽  
Significant Achievement ◽  
Energy Saving Technology ◽  
Lighting Systems

The fossil fuel reserves in India are rapidly exhausting with the country's development. To cope with the energy crisis, end-user efficiency plays an important role. This paper deals with energy saving in lighting systems with the replacement of lighting programs, as in India there is in all sectors a growing demand for energy. A number of commonly used lighting sources and their comparison in light production were discussed. The campus lighting system consisting of a T12 fluorescent lamp for monitoring the residential and institutional area of an existing device can be replaced by proposed LED lighting with equivalent performance, but has greater efficiency to reduce light energy consumption, This improvement Endbenutzereffizienz reduce the peak and the average demand of electricity, which reduces the load on the power grid. The annual energy savings through the proposed system are about 65% over current costs, which is a significant achievement of the energy saving technology. The retrofit period for the proposed lighting system installation is a little over three years. The initial investment for a short-term rating is slightly higher, but at a long-term valuation, the initial investment for the proposed regime is reduced by 50%, as the operating time of the proposed system is approximately five times higher higher than the current regime.

The Acute Effect of Alcohol on Various Memory Processes

2010 ◽  
Vol 24 (4) ◽  
pp. 249-252 ◽  
Author(s):  
Márk Molnár ◽  
Roland Boha ◽  
Balázs Czigler ◽  
Zsófia Anna Gaál
Keyword(s):  
Low Dose ◽  
Short Term Memory ◽  
Acute Effect ◽  
Long Term Memory ◽  
Term Memory ◽  
Memory Processes ◽  
Different Types ◽  
The Brain ◽  
Legal Consequences

This review surveys relevant and recent data of the pertinent literature regarding the acute effect of alcohol on various kinds of memory processes with special emphasis on working memory. The characteristics of different types of long-term memory (LTM) and short-term memory (STM) processes are summarized with an attempt to relate these to various structures in the brain. LTM is typically impaired by chronic alcohol intake but according to some data a single dose of ethanol may have long lasting effects if administered at a critically important age. The most commonly seen deleterious acute effect of alcohol to STM appears following large doses of ethanol in conditions of “binge drinking” causing the “blackout” phenomenon. However, with the application of various techniques and well-structured behavioral paradigms it is possible to detect, albeit occasionally, subtle changes of cognitive processes even as a result of a low dose of alcohol. These data may be important for the consideration of legal consequences of low-dose ethanol intake in conditions such as driving, etc.

Sign in / Sign up

Export Citation Format

Share Document