A LABORATORY STUDY ON VISUAL AND EMOTIONAL COMFORT EVALUATION OF LED WIDE BEAM ANGLE LAMPS : TAKING 3000K/ 4000K / 5000 K LINEAR LAMPS AS RESEARCH OBJECT

2021 ◽  
Author(s):  
Kai Feng ◽  
Luoxi Hao ◽  
Shujian Dai
Keyword(s):  
Laboratory Experiment ◽  
Laboratory Study ◽  
Negative Evaluation ◽  
Light Pollution ◽  
Visual Comfort ◽  
Beam Angle ◽  
Wide Beam ◽  
Comfort Evaluation ◽  
Medium Speed ◽  
Negative Feelings

LED wide beam angle lamps have been widely used but might leading to glare or light pollution easily than traditional floodlighting lamps. Standards for wide beam angle products is not enough and a laboratory experiment was carried out in which visual and emotional comfort was used as evaluation items. 3 linear lamps (3000K/4000K/5000K) were used to evaluate emotional and visual comfort changes by performing different brightness or dynamic speed. Results showed that both brightness and dynamic speed could lead to negative feelings while emotional discomfort always occurs behind the eye’s discomfort. A higher brightness could leading to more negative evaluations, while some people think that medium brightness gives a more comfort feeling. A faster speed leads to more negative evaluation while some subjects prefer a medium speed (both in shading and erasure situations); In different lighting scenes, the significance of different indicators is different.

scholarly journals Competition and Food Intake: A Laboratory Study

2018 ◽  
Vol 14 (10) ◽  
pp. 53
Author(s):  
Marisa Bucheli ◽  
Mariana Gerstenbluth ◽  
Maximo Rossi
Keyword(s):  
Food Intake ◽  
Laboratory Experiment ◽  
Eating Behavior ◽  
Laboratory Study ◽  
The Other ◽  
Incentive Scheme ◽  
Piece Rate ◽  
Competitive Environments

The aim of this paper is to analyze the intake of two types of sweet snacks by women using competitive environments as stressors. We study the effect of competition on food intake from two perspectives: overall consumption and the substitution between two snacks (a “healthy” and a “nonhealthy” snack). For this purpose we did a laboratory experiment in which the participants were women. They were offered chocolate candies and raisins as they solved several problems. Half of the participants completed the tasks at a noncompetitive piece rate and the other half under a competitive tournament incentive scheme. The results show that at the median the participants’ intake was higher under tournament than piece rate payment. Moreover, the increase in food intake was led by a rise in chocolate consumption. We conclude that competition increases the consumption of fat, calories and carbohydrates and thus affects eating behavior and promotes unhealthy patterns. This research contributes to the strand of the literature that focuses on factors that affect the eating behavior which influences health.

scholarly journals Daylighting, Space, and Architecture: A Literature Review

2015 ◽  
Vol 12 (1) ◽  
Author(s):  
Dalia Hafiz
Keyword(s):  
Visual Field ◽  
Literature Review ◽  
Simulation Software ◽  
Decision Makers ◽  
Design Element ◽  
Visual Comfort ◽  
Review Of The Literature ◽  
Lighting Conditions ◽  
Comfort Evaluation ◽  
Constant Change

Daylighting dynamism and constant change can characterize buildings and spaces with a living quality that cannot be achieved with any other design element. However, daylighting can create unwanted lighting conditions in the visual field causing discomfort and glare. This may affect the performance of building occupants such as workers or students. Consequently, designing for daylighting needs a good understanding of daylighting. Designers can rely on information from simulation software to re-imagine the space, especially to examine possible unexpected visual discomfort conditions.This paper aims to represent different visual comfort evaluation methods that can help decision-makers make better informed decisions. Different definitions and structures associated with daylight and glare are examined. It also presents a review of the literature of previous research conducted on daylighting, visual comfort analysis and glare studies.

Parental calls and the approach behavior of young Canada geese: a laboratory study

1973 ◽  
Vol 51 (6) ◽  
pp. 647-650 ◽  
Author(s):  
P. J. Cowan
Keyword(s):  
Laboratory Experiment ◽  
Laboratory Study ◽  
Individual Recognition ◽  
The Other ◽  
Canada Goose ◽  
Canada Geese ◽  
Approach Behavior ◽  
Visual Movement ◽  
Visual Elements

A laboratory experiment was conducted to test whether parental calls of the Canada goose, calls A, B, and C, each recorded from a different individual goose, differentially affect the approach behavior of call A experienced and parental call naive goslings. Experience before with call A produced a greater number of approach responses to this call relative to the other calls and a parental call of the ring-billed gull. After training with a call, in the experiment paired with visual movement, individual parental calls can have distinct effects on the approach behavior of goslings. This process involving auditory and visual elements may be the basis of individual recognition in the Canada goose.

scholarly journals Effectiveness of Beauveria bassiana Bioinsecticide against the Erannis jacobsoni diak

2021 ◽  
Vol 3 (2) ◽  
pp. 22-25
Author(s):  
Otgonjargal Khureldagva ◽  
Batsaikhan Enkhsaikhan
Keyword(s):  
Field Experiment ◽  
Laboratory Experiment ◽  
Field Study ◽  
Beauveria Bassiana ◽  
Laboratory Study ◽  
Local Strain ◽  
As Species

We tested the bioactivity bioinsecticide of Beauveria bassiana –G07 /Bassiana muscardin/ against the Jacobson's spanworm /Erannis jacobsoni Diak/, which is the most destructive pest in the forest. The experiment was conducted 5 variants (1.5×106 spore/ml, 1.5×107 spore/ml, 1.5×108 spore/ml, 1.5×109 spore/ml, control), 3 times on the larvaes in the laboratory in 14 days. For the field experiment, we used 4 variants (1.5×1013 spore/he, 2.5×1013 spore/he, 3.5×1013 spore/he, control), 3 times in 21 days. From the result of laboratory study the 1.5×109 spore shows 91.9% bioactivity, and in the field study 3.5×1013 spore/he shows 80% bioactivity. Local strain B. bassiana –G07 and cultures of B. Bassiana, which were isolated from larvaes, died during the laboratory experiment, were detected and it was identified as species B. bassiana by PCR.

scholarly journals An Analysis of the Perspective of People in Training “Conscripted” to Manage COVID-19 Hospital Patients in Mexico

2021 ◽  
Author(s):  
Gabriela Moreno ◽  
Miguel Torres Ruiz ◽  
Eleazar Lara Padilla ◽  
Rosalba Garduño ◽  
Antonio Franco Vadillo ◽  
...  
Keyword(s):  
Health Care ◽  
Online Survey ◽  
Health Workers ◽  
Negative Evaluation ◽  
Personal Protection ◽  
Cross Sectional ◽  
Convenience Sample ◽  
Personal Protection Equipment ◽  
Hospital Patients ◽  
Negative Feelings

Background In order to address the COVID-19 pandemic, health systems have used all their resources, including health care workers in training. Knowing the insights of these workers is of the utmost importance to generate adequate educative/political /administrative strategies. Methods An anonymous cross-sectional online survey was made by the General Directorate of Quality and Health Education in Mexico, in a convenience sample of 6,020 participants who belong to personnel in training for the health area, which included practitioners and professional technologists, undergraduate doctors, nursing, and residents in several specialties. Results Different positive and negative feelings were identified by the health workers who participated in facing this health emergency; emphasizing elements such as the need for Personal Protection Equipment (PPE) that, when deficient or lacking, generate concerns that raise questions about the medical/epidemiological attention to the pandemic. Based on an analysis of feelings, 8 main feelings were identified, which by frequency of appearing were: distrust(24.83%), fear(21.97%), sadness(12.45%), anticipation(11.65%), anger(10.71%), disgust(9.69%), joy(4.97%) and surprise(3.72%) which influence health workers in training and their wrok performance day to day. Concerning their positive and negative evaluation of their experience facing this health emergency, 13.83% of participants had a positive perception about participating in this kind of health emergency to support the country, 49.94% showed a negative evaluation, and 36.23% kept a neutral evaluation about their participation. Conclusions The health workers in training in Mexico gave a negative evaluation of the management of the health emergency. Distrust as a response to the absence of timely information from the education/health institutions, as well as concern about lack of personal protection equipment/inputs, are the main conflicts reported. We must establish a credible globally relevant continuity plan for the education of health care personnel in training, facing emergencies and disasters, so that next time we are properly prepared.

scholarly journals Shame and Theory-of-Mind Predicts Rule-Following Behavior

Games ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 36
Author(s):  
Garret Ridinger
Keyword(s):  
Theory Of Mind ◽  
Laboratory Experiment ◽  
Moral Emotions ◽  
Rule Following ◽  
Social Rules ◽  
Psychometric Measures ◽  
Shame And Guilt ◽  
Negative Feelings

This paper examines the idea that adherence to social rules is in part driven by moral emotions and the ability to recognize the emotions of others. Moral emotions like shame and guilt produce negative feelings when social rules are transgressed. The ability to recognize and understand the emotions of others is known as affective theory of mind (ToM). ToM is necessary for people to understand how others are affected by the violations of social rules. Using a laboratory experiment, individuals participated in a rule-following task designed to capture the propensity to follow costly social rules and completed psychometric measures of guilt, shame, and ToM. The results show that individuals who feel more shame and have higher ToM are more likely to follow the rules. The results from this experiment suggest that both shame and ToM are important in understanding rule-following.

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