scholarly journals Biological activity of carbon nanoparticles produced in combustion process

2019 ◽  
Vol 179 (4) ◽  
pp. 269-273
Author(s):  
Jarosław KAŁUŻNY ◽  
Natalia IDASZEWSKA ◽  
Tomasz RUNKA ◽  
Adam PIASECKI ◽  
Marek NOWICKI ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Experimental Study ◽  
Carbon Nanoparticles ◽  
Dominant Role ◽  
Combustion Process ◽  
Industrial Applications ◽  
Carbon Allotropes ◽  
Air Purifier ◽  
Residential Space

In the recent years industrial applications of carbon allotropes such as carbon nanotubes (CNTs) and graphene have been tested extensively, thus justifying research on the environmental impact these materials have. In the current paper we compare EDS spectroscopy results of a cabin filter used in a car to a filter used in an air purifier inside a residential space. The contaminants adsorbed on the carbon nanoparticles trapped in both types of filters allows for determining of their source of origin demonstrating clearly the dominant role of non-road emissions in Poland. Finally we present the experimental study on the growth of plants on substrates intentionally enriched with CNTs.

scholarly journals Translocation of Functionalized Multi-Walled Carbon Nanotubes across Human Pulmonary Alveolar Epithelium: Dominant Role of Epithelial Type 1 Cells

ACS Nano ◽  
2016 ◽  
Vol 10 (5) ◽  
pp. 5070-5085 ◽  
Author(s):  
Pakatip Ruenraroengsak ◽  
Shu Chen ◽  
Sheng Hu ◽  
Jodie Melbourne ◽  
Sinbad Sweeney ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Dominant Role ◽  
Alveolar Epithelium ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Evaluation of the role of carbon nanotubes on the electrical properties of poly(butylene terephthalate) nanocomposites for industrial applications

2018 ◽  
Vol 51 (1) ◽  
pp. 3-25 ◽  
Author(s):  
A Dorigato ◽  
V Freitas ◽  
JA Covas ◽  
MC Paiva ◽  
M Brugnara ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Conductive Polymer ◽  
Melt Flow Index ◽  
Industrial Applications ◽  
Flow Index ◽  
Scanning Calorimetry ◽  
Electrically Conductive ◽  
Joule Effect ◽  
Butylene Terephthalate

In this article, innovative electrically conductive polymer nanocomposites based on poly(butylene terephthalate) (PBT) filled with carbon nanotubes (CNTs) at different concentrations, to be used in the automotive field, have been investigated. Field emission scanning electron microscopy (FESEM) analysis revealed how a good nanofiller dispersion was obtained, especially by using surface treated nanotubes and by processing these materials using a more restrictive screw configuration. Melt flow index measurements highlighted that the processability of these nanocomposites was reduced at elevated filler amounts, even if CNT surface treatment promoted a partial retention of the fluidity of the neat PBT. Thermal degradation stability was improved upon the addition of CNT, even at limited filler amounts. Differential scanning calorimetry measurements evidenced how the presence of CNT slightly increased both the crystallization temperature and the crystalline fraction of the materials. The additivation of CNTs promoted a stiffening effect at elevated CNT contents, associated to an evident embrittlement of the samples. Electrical resistivity measurements showed that the most interesting results (i.e. 2.6 × 101 Ω·cm) were obtained for nanocomposites with a total filler content of 3 wt%, processed using the more restrictive screw configuration. For these materials, it was possible to obtain a rapid surface heating through Joule effect at applied voltages of 12 V.

Chronic Pain: Fundamental Scientific Considerations, Specifically for Legal Claims

2013 ◽  
Vol 18 (1) ◽  
pp. 1-18 ◽  
Author(s):  
Robert J. Barth
Keyword(s):  
Health Outcomes ◽  
Pain Perception ◽  
Driving Forces ◽  
Psychological Treatment ◽  
Dominant Role ◽  
Meta Analysis ◽  
General Medicine ◽  
Pain Syndrome ◽  
Problematic Relationship

Abstract Scientific findings have indicated that psychological and social factors are the driving forces behind most chronic benign pain presentations, especially in a claim context, and are relevant to at least three of the AMA Guides publications: AMA Guides to Evaluation of Disease and Injury Causation, AMA Guides to Work Ability and Return to Work, and AMA Guides to the Evaluation of Permanent Impairment. The author reviews and summarizes studies that have identified the dominant role of financial, psychological, and other non–general medicine factors in patients who report low back pain. For example, one meta-analysis found that compensation results in an increase in pain perception and a reduction in the ability to benefit from medical and psychological treatment. Other studies have found a correlation between the level of compensation and health outcomes (greater compensation is associated with worse outcomes), and legal systems that discourage compensation for pain produce better health outcomes. One study found that, among persons with carpal tunnel syndrome, claimants had worse outcomes than nonclaimants despite receiving more treatment; another examined the problematic relationship between complex regional pain syndrome (CRPS) and compensation and found that cases of CRPS are dominated by legal claims, a disparity that highlights the dominant role of compensation. Workers’ compensation claimants are almost never evaluated for personality disorders or mental illness. The article concludes with recommendations that evaluators can consider in individual cases.

Medic Interaction Modes and Hospitalized Children Health

2019 ◽  
Author(s):  
Naveed Shibli ◽  
Miss Shehrish Farooq
Keyword(s):  
Experimental Study ◽  
Health Outcomes ◽  
Block Design ◽  
Pain Scale ◽  
Hospitalized Children ◽  
Face Pain ◽  
Children Health ◽  
Face Pain Scale

<p></p><p>In the present experimental study different interaction ‘modes’ those took place between a psychologist and a child were tested for the role of these towards health recovery of the child? Following were the interaction modes, a) presenting a flower with smile plus inquiring about health, b) offering a blessing plus inquiring about health, c) making an indifferent presence plus inquiring about health with flat tone, d) inquiring about health with providing precautions about prognosis. It was assumed that all modes would differently influence health outcomes? 100 hospitalized children located in child wards of different hospitals with randomized pre-post block design interacted. One each from four interaction modes was used for a group of 25 participants each. Actual ward discharge was compared with anticipatory estimated by each ward in-charge to calculate effect of mode on outcome. Face Pain Scale, The Children Happiness Scale and a Demographic Sheet were also used. Results reflected ‘modes’ relationship with outcomes. More studies would clarify further.</p><br><p></p>

The influence of information relevance on the continued influence effect of misinformation

2020 ◽  
Author(s):  
Hua Jin ◽  
Lina Jia ◽  
Xiaojuan Yin ◽  
Shilin Wei ◽  
Guiping Xu
Keyword(s):  
Experimental Study ◽  
Questionnaire Survey ◽  
Personal Involvement ◽  
Influence Effect ◽  
Information Relevance ◽  
Different Types ◽  
Role Of Information

Misinformation often continues to influence people’s cognition even after corrected (the ‘continued influence effect of misinformation’, the CIEM). This study investigated the role of information relevance in the CIEM by questionnaire survey and experimental study. The results showed that information with higher relevance to the individuals had a larger CIEM, indicating a role of information relevance in the CIEM. Personal involvement might explain the effects of information relevance on the CIEM. This study provides insightful clues for reducing the CIEM in different types of misinformation and misinformation with varying relevance.

Breathing and its stimulatory responses in parkinsonism: repercussions for physiotherapy

2020 ◽  
Author(s):  
Mieczyslaw Pokorski
Keyword(s):  
Experimental Study ◽  
Chronic Hypoxia ◽  
Motor Impairments

This study addresses respiratory and motor impairments in an experimental reserpine-induced model of parkinsonism in rats. The role of chronic hypoxia due to diminished ventilation in the development and course of neurodegeneration is addressed. An attempt was made to distinguish between central and peripheral dopamine pathways in the mechanisms of neurodegeneration. A dissociation of putative mechanisms of respiratory and motor impairments is tackled as well. Although this purely experimental study cannot be directly extrapolated to human pathophysiology, the corollaries have been drawn concerning the potential repercussions of the respiratory and motor impairments for the physiotherapeutic procedures in the management of chronic neurodegeneration.

НЕКОТОРЫЕ ОСОБЕННОСТИ РАСПРОСТРАНЕННОСТИ РЕСПИРАТОРНОЙ АЛЛЕРГИИ НА ЮГЕ РОССИИ

2019 ◽  
Author(s):  
D.Sh. Macharadze
Keyword(s):  
Dominant Role ◽  
Pollen Allergy ◽  
Respiratory Allergy ◽  
House Dust Mites ◽  
Dust Mites ◽  
The Past ◽  
Regional Features ◽  
Respiratory Allergies ◽  
Southern Russia

В обзорной статье приведены данные по распространенности респираторной аллергии - аллергического ринита и бронхиальной астмы на юге России, опубликованные за последние десятилетия. Показана доминирующая роль пыльцевой аллергии практически во всем южном регионе России. В Чеченской Республике у больных респираторной аллергией обнаружена сходная частота встречаемости сенсибилизации к клещам домашней пыли и пыльце злаковых трав (51,1 и 52,5 соответственно), тогда как сенсибилизация к пыльце амброзии и полыни встречалась в 3 раза реже (26,6 и 20,7 соответственно) по сравнению с соседними регионами юга России. Эти данные демонстрируют климатогеографические, экологические и другие региональные особенности в распространении респираторной аллергии.The review article presents data on the prevalence of respiratory allergy - allergic rhinitis and bronchial asthma in southern Russia, published over the past decades. The dominant role of pollen allergy is shown in almost the entire southern region of Russia. In the Chechen Republic, sensitization to house dust mites and grass pollen was found in patients with respiratory allergy equally (51.1 and 52.5, respectively), whereas ragweed and mugwort sensitization was 3 times less (26.6 and 20.7, respectively) compared with the neighboring regions of southern Russia. These data demonstrate climate-geographical, environmental and other regional features in the prevalence of respiratory allergies.

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