scholarly journals Optimization of the Odor Microclimate

10.14311/324 ◽  
2002 ◽  
Vol 42 (2) ◽  
Author(s):  
M. V. Jokl

The odor microclimate is formed by gaseous airborne components perceived either as an unpleasant smell or as a pleasant smell. Smells enter the building interior partly from outdoors (exhaust fumes - flower fragrance) and partly from indoors (building materials, smoking cigarettes - cosmetics, dishes). They affect the human organism through the olfactory center which is connected to the part of brain that is responsible for controlling people's emotions and sexual feelings: smells therefore participate to a high level in mood formation. Sweet smells have a positive impact on human feelings and on human performance. Criteria for odor microclimate appraisal are presented together with ways of improving the odor microclimate (by stopping odors from spreading within a building, ventilation, air filtration, odor removal by plants, deodorization, etc.), including so-called AIR DESIGN.

10.14311/322 ◽  
2002 ◽  
Vol 42 (2) ◽  
Author(s):  
M. V. Jokl

The odor microclimate is formed by gaseous airborne components perceived either as an unpleasant smell or as a pleasant smell. Smells enter the building interior partly from outdoors (exhaust fumes - flower fragrance) and partly from indoors (building materials, smoking cigarettes - cosmetics, dishes). They affect the human organism through the olfactory center which is connected to the part of brain that is responsible for controlling people’s emotions and sexual feelings: smells therefore participate to a high level in mood formation. The sense of smell diminishes slowly in people over the age of 60, but all female age categories have a better sense of smell than males. Smell is extremely sensitive, e.g., during pregnancy, or if an illness is coming. Bad smells cause a decrease in human performance, loss of concentration, and loss of taste. Sweet smells have a positive impact on human feelings and on human performance. Criteria for odor microclimate appraisal are presented (concentration limits of CO2 , TVOC, plf, decipol, decicarbdiox, decitvoc).


10.14311/346 ◽  
2002 ◽  
Vol 42 (3) ◽  
Author(s):  
M. V. Jokl

Toxic (harmful) gases enter building interiors partly from outdoors (sulfur oxides, nitrogen oxides, carbon monoxide, ozone, smog and acid rains), partly originate indoors - as a result of human activity (carbon monoxide, tobacco smoke, nitrogen oxides, ozone, hydrocarbons) and also emanate from building materials (formaldehyde, volatile organic compounds). The human organism is most often exposed to cigarette smoke (especially nonsmokers are endangered, as cigarette smoke devastes the pulmonary and cardiovasculary system) and to smog entering from outdoors, paradoxically during sunny weather. Preventing toxic production is the most effective measure, e.g., by coaxing to coax smokers out of "civilized" areas, by using energy rationally (i.e., conserving energy), to turn to pure fuels and to increase energy production by non-combustion technologies. Besides ventilation and air filtration, the toxic gases can be removed to a remarkable extent by plants (by which decay the substances into nontoxic gases), and by air ionization. Review article.


1983 ◽  
Vol 27 (7) ◽  
pp. 581-583
Author(s):  
Michael L. Frazier

To ensure that all major Air Force systems are subject to adequate human factors examination, the dependence on data-free critical analysis concerning system (and human) performance should be kept to a minimum during testing. Human factors test and evaluators (T&Eers) require the timely application of state-of-the-art (SOA) test and evaluation (T&E) techologies to keep pace with advanced system design. The Air Force needs to establish high-level policies directing human factors technology to ensure there are: 1) SOA T&E procedures, models and techniques; 2) appropriate human performance criteria; 3) current specifications, standards and handbooks; 4) qualified and trained T&Eers 5) SOA T&E instrumentation and equipment, and 6) SOA T&E software. A proposed model for transfer of human factors technologies for test and evaluation is presented.


2008 ◽  
Vol 44 ◽  
pp. 11-26 ◽  
Author(s):  
Ralph Beneke ◽  
Dieter Böning

Human performance, defined by mechanical resistance and distance per time, includes human, task and environmental factors, all interrelated. It requires metabolic energy provided by anaerobic and aerobic metabolic energy sources. These sources have specific limitations in the capacity and rate to provide re-phosphorylation energy, which determines individual ratios of aerobic and anaerobic metabolic power and their sustainability. In healthy athletes, limits to provide and utilize metabolic energy are multifactorial, carefully matched and include a safety margin imposed in order to protect the integrity of the human organism under maximal effort. Perception of afferent input associated with effort leads to conscious or unconscious decisions to modulate or terminate performance; however, the underlying mechanisms of cerebral control are not fully understood. The idea to move borders of performance with the help of biochemicals is two millennia old. Biochemical findings resulted in highly effective substances widely used to increase performance in daily life, during preparation for sport events and during competition, but many of them must be considered as doping and therefore illegal. Supplements and food have ergogenic potential; however, numerous concepts are controversially discussed with respect to legality and particularly evidence in terms of usefulness and risks. The effect of evidence-based nutritional strategies on adaptations in terms of gene and protein expression that occur in skeletal muscle during and after exercise training sessions is widely unknown. Biochemical research is essential for better understanding of the basic mechanisms causing fatigue and the regulation of the dynamic adaptation to physical and mental training.


Author(s):  
Jean-François Lemay ◽  
Shauna Langenberger ◽  
Scott McLeod

Abstract Background The Alberta Children’s Hospital-Autism Spectrum Disorder Diagnostic Clinic (ACH-ASDC) was restructured due to long wait times and unsustainable clinic workflow. Major changes included the initiation of pre- and post-ASD parent education sessions and distinct ASD screening appointments before the ASD diagnostic appointment. Methods We conducted a parental program evaluation in summer 2018 of the ACH-ASDC. We used a cross-sectional survey to evaluate key outcomes including parental satisfaction, and the percentage of families obtaining access to government supports and early intervention programs. Results For the 101 eligible patients diagnosed with ASD under 36 months of age 70 (69.3%) parents agreed to participate. The mean diagnostic age of the children diagnosed with ASD was 30.6 months (SD=4.1 months). There were no statistically significant age differences between biological sexes. Ninety-three per cent of parents felt that ASD educational sessions were useful, and 92% of parents were satisfied to very satisfied with the overall ASD diagnostic process. Ninety per cent of parents had access to at least one of the key resources available for ASD early intervention in our province following diagnosis. Parents reported a positive impact on intervention provided to their child in the areas of communication, social interaction, and behaviour. Conclusion Parents of children diagnosed with ASD expressed a high level of satisfaction with the restructured ACH-ASDC process. Implementing parent education sessions was well received and met parents’ needs. Parents were able to access intervention services following diagnosis and reported positive impacts for their child. Re-envisioning program approaches to incorporate novel strategies to support families should be encouraged.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Luqman Oyekunle Oyewobi ◽  
Olufemi Seth Olorunyomi ◽  
Richard Ajayi Jimoh ◽  
James Olabode Bamidele Rotimi

Purpose Many construction businesses are currently building and keeping social media pages for their enterprises to be visible to the public to improve their social interaction, promote business interest, build trust and relationships with their targeted audience on social media. The purpose of this study is to examine the impact of social mediausage on performance of construction businesses (CBs) in Abuja, Nigeria. Design/methodology/approach This study used a quantitative research approach by identifying constructs that reveal three aspects of organisation’s physiognomies that impact the process of espousing, implementing and using technological innovations in conducting businesses. Well-structured questionnaire was used to obtain data from 113 purposively sampled building materials’ merchant operating in Dei-Dei Market, Abuja, Nigeria. This study used partial least squares structural equation modelling technique to establish the relationship among the constructs. Findings The results of this study indicated that technology has significant relationship with social media adoption, whereas social media adoption has a very strong positive impact on organisation’s performance (P < 0.001) with respect to improved customer relations and services and enhanced information accessibility. Research limitations/implications This study has implications for CBs that wish to adopt social media to promote their businesses by presenting to them the opportunity to understand the impact of technology, environment and organisational potential in improving business performance. This study is cross-sectional in nature, and this calls for caution in interpreting the results. Originality/value This paper developed and tested a conceptual framework presented to understand the interrelationships amongst the constructs, which would be of great significance to business owners in developing their social interaction and promote business interest via social media. The outcome of this research is beneficial to researchers to further study how the different social media tools could help in influencing business decisions.


2021 ◽  
Author(s):  
Clémence Brun ◽  
Alexis Akinyemi ◽  
Laurène Houtin ◽  
Claire Mizzi ◽  
Thierry Cardoso ◽  
...  

Objectives: Providing quality care requires compassion, and encouraging caregivers to develop a patient-centred care relationship could be beneficial for both patients and caregivers. Such a goal can be achieved through mindfulness-based programmes, which can improve caregivers’ compassion and self-compassion. They are particularly relevant for caregivers, as they have a high risk of experiencing work-related burnout due to the high level of involvement required in their work. We hypothesised that a mindfulness training programme specifically focused on situations that are relevant for caregivers could improve patient–caregiver relationships and the care provided by the latter. Methods: We conducted a qualitative study with 10 interviews designed to explore the perceived psychological consequences of such training programmes amongst caregivers who experienced a mindfulness training programme specifically elaborated for the medical staff at APHP Sorbonne University (i.e., the Mindfulness Based (MB) CARE programme). Results: Content analysis results showed that the training had an overall positive impact on the caregivers’ ability to feel compassion toward their patients and themselves. The caregivers were more attentive to their patients and their needs, without being able to articulate how well they were paying attention to them. The programme also helped them develop kindness towards themselves and their patients. The participants were better able to accept more sympathetically the difficult experiences they might encounter in the workplace or those reported by their patients. Conclusions: We conclude that professional mindfulness training programmes could be operational levers for institutions aiming at fostering a more compassionate caregiver–patient relationship, which in turn, can improve the efficiency of care provision.


2017 ◽  
Vol 2 (1) ◽  
pp. 17-22
Author(s):  
Furi Chorina Agustin ◽  
Yudi Dirgantara ◽  
Ade Yeti Nuryantini

This study originated from the lack of utilization of learning media during the learning process. Teaching methods used by teachers are less varied so that learners are only trained in cognitive abilities only while for high-level thinking skills such as critical thinking ability is still low. One alternative that can be done to improve the skills of critical thinking is to utilize the Software Tracker media. This study aims to determine the improvement of critical thinking skills of learners through the use of Software Tracker media on the material impulse and momentum. The research method used is Pre-Experiment with design One-Group Pretest-Posttest Design. The sample of this research using Purposive Sampling technique. The research instrument used in this research is the critical thinking skills of the students of impulse material and momentum to measure the critical thinking ability of learners. The data analysis technique uses normality test, and t test to normalized n-gain value from pretest and posttest value of learners using Microsoft Excel. The results showed that the critical thinking skills of learners increased after utilizing the Software Tracker media during learning. The result of this research is proved from the significant value of ttable test of 1.691 while t count is 24.53 which means H0 is rejected and Ha accepted. The results of this study indicate that the use of Software Tracker media on the material impulse and momentum have a positive impact on improving the critical thinking skills of learners.


Author(s):  
Oskar Ekelund ◽  
Kim Ekblom ◽  
Sofia Somajo ◽  
Johanna Pattison-Granberg ◽  
Karl Olsson ◽  
...  

Background: The recently launched high-throughput assays for the detection of antibodies against SARS-CoV-2 may change the managing strategies for the COVID-19 pandemic. This study aimed at investigating the performance of three high-throughput assays and one rapid lateral flow test relative to the recommended criteria defined by regulatory authorities. Methods: A total of 133 samples, including 100 pre-pandemic samples, 20 samples from SARS-CoV-2 RT-PCR positive individuals, and 13 potentially cross-reactive samples were analysed with SARS-CoV-2 IgG (Abbott), Elecsys Anti-SARS-CoV-2 (Roche), LIAISON SARS-CoV-2 S1/S2 IgG (DiaSorin) and 2019-nCOV IgG/IgM Rapid Test (Dynamiker Biotechnology Co). Results: All assays performed with a high level of specificity; however, only Abbott reached 100% (95% CI 96.3-100). The pre-pandemic samples analysed with Roche, DiaSorin and Dynamiker Biotechnology resulted in two to three false-positive results per method (specificity 96.9-98.0%). Sensitivity differed more between the assays, Roche exhibiting the highest sensitivity (100%, CI 83.9-100). The corresponding figures for Abbott, DiaSorin and Dynamiker Biotechnology were 85.0%, 77.8% and 75.0%, respectively. Conclusions: The results of the evaluated SARS-CoV-2 assays vary considerably as well as their ability to fulfil the performance criteria proposed by regulatory authorities. Introduction into clinical use in low-prevalent settings, should therefore, be made with caution.


Author(s):  
Stefanie Evelyn ◽  
Sutrisnowati Machdijar

BSD City is an area that is planned to be a pioneer of the Integrated Smart Digital City, triggered by the population of BSD which is dominated by millennials and alpha generations who grow up following technological developments. Millennials have a high level of anxiety, stress and depression. To reduce high levels of stress art has an important role where art can change one's emotions and behavior, have a positive impact on stress management, reduce anxiety levels and improve mood. Digital technology has allowed art to go beyond existing boundaries, so that art in the present and in the future will be more dynamic, flexible in accordance with the character of the millennials generation. Therefore, this design aims to provide a forum for interaction between art and humans and among fellow human beings from various groups by utilizing technological advances to maximize the interactions that occur and foster creative thinking and self-expression through digital art. The design is done by survey method and shape grammar. A museum where visitors can explore digital art and interact directly with the artwork and express their emotions freely into a museum, is needed by the Millennials at this time. AbstrakKota BSD merupakan suatu kawasan yang direncanakan akan menjadi pionir Integrated Smart Digital City, dipicu oleh penduduk BSD yang didominasi oleh generasi milenial dan generasi alfa yang tumbuh dengan mengikuti perkembangan teknologi. Generasi  milenial memiliki  tingkat kecemasan, stress, dan depresi yang tinggi. Untuk mengurangi tingkat stress yang tinggi itu seni memiliki peran yang penting dimana seni dapat mengubah emosi dan perilaku seseorang, memberi dampak positif pada manajemen stress, mengurangi tingkat kecemasan dan meningkatkan mood.[1] Teknologi digital telah memungkinkan seni untuk melampaui batasan-batasan yang ada, sehingga seni di masa sekarang dan di masa yang akan datang menjadi lebih dinamis, fleksibel sesuai dengan karakter generasi millennials. Oleh karena itu, perancangan ini bertujuan untuk menyediakan wadah interaksi antara seni dengan manusia dan antara sesama  manusia dari berbagai golongan dengan memanfaatkan kemajuan teknologi untuk memaksimalkan interaksi yang terjadi serta menumbuhkan pemikiran kreatif dan ekspresi diri melalu seni digital. Perancangan dilakukan dengan metode survei dan shape grammar. Museum dimana pengunjung dapat mengeksplorasi seni digital dan berinteraksi langsung dengan karya seni tersebut serta mengekspresikan emosinya secara bebas menjadi museum yang dibutuhkan generasi milenial di masa ini.[1] Sabine C. Koch & Fuchs T, Embodied Arts Therapies, (Arts Psychother, 2011)


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