scholarly journals Compression of limbs by tight bandages

2019 ◽  
Vol 68 (1) ◽  
pp. 8-11
Author(s):  
Željko Šomođi ◽  
Emilija Zdraveva ◽  
Željka Pavlović
Keyword(s):  
Mechanical Properties ◽  
Human Health ◽  
Elastic Properties ◽  
Human Body ◽  
Body Parts ◽  
Composite Cylinder ◽  
Negative Effects ◽  
Rigid Core ◽  
Edge Conditions ◽  
Tissue Stresses

Human body parts are sometimes compressed by tight clothes, footwear, bandages etc. Therefore, it is important to balance between functionality and comfort of garments in order to avoid negative effects on human health. Mechanical properties of both garment and tissue need to be taken into account for the analysis of pressure of tight garments. The thick walled tube theory is adjusted to a composite cylinder with a rigid core, as an approximate limb model with corresponding edge conditions. The results suggest the effect of tightness and elastic properties of the tissue and the tight garment on the level and type of tissue stresses.

Fast, simultaneous metal reduction/deposition on electrospun a-WO3/PAN nanofiber membranes and their potential applications for water purification and noble metal recovery

2018 ◽  
Vol 6 (30) ◽  
pp. 14577-14586 ◽  
Author(s):  
Jing Wei ◽  
Xiuling Jiao ◽  
Ting Wang ◽  
Dairong Chen
Keyword(s):  
Human Health ◽  
Noble Metal ◽  
Human Body ◽  
Water Purification ◽  
Metal Reduction ◽  
Negative Effects ◽  
Metal Pollutants ◽  
Potential Applications ◽  
Nanofiber Membranes ◽  
Pan Nanofiber

Wastewater containing metal pollutants has raised concerns owing to their accumulation in the human body and their negative effects on human health.

Marketing Body Parts: Morality, Law, and Public Opinion

2017 ◽  
Vol 17 (6) ◽  
pp. 1102-1115
Author(s):  
Michael Davis
Keyword(s):  
Public Opinion ◽  
Informed Consent ◽  
Human Body ◽  
Body Parts ◽  
Negative Effects ◽  
Economic Market

This article offers an economic (market-based) argument for prohibiting not only transplant commercialism (trafficking and tourism) but also donation of quasi-replaceable body parts (such as first kidney) that require the mutilation of a living human body (turning a part of a person that does not regenerate into a thing to be implanted in another). The argument relies on the concept of pollution (negative effects of a market that fall on participants without their informed consent). The article includes a critique of part of the Declaration of Istanbul.

Modelling and Simulation of NO2 Dispersion Phenomenon in Atmosphere by Analytical-Experimental Methods

2008 ◽  
Vol 59 (10) ◽  
Author(s):  
Delia Perju ◽  
Harieta Pirlea ◽  
Gabriela-Alina Brusturean ◽  
Dana Silaghi-Perju ◽  
Sorin Marinescu
Keyword(s):  
Mathematical Model ◽  
Nitrogen Dioxide ◽  
Modeling And Simulation ◽  
Human Health ◽  
Experimental Methods ◽  
Negative Effects ◽  
Real Situation ◽  
Experimental Values ◽  
The Mathematical Model

The European laws and recently the Romanian ones impose more and more strict norms to the large nitrogen dioxide polluters. They are obligated to continuously improve the installations and products so that they limit and reduce the nitrogen dioxide pollution, because it has negative effects on the human health and environment. In this paper are presented these researches made within a case study for the Timi�oara municipality, regarding the modeling and simulation of the nitrogen dioxide dispersion phenomenon coming from various sources in atmosphere with the help of analytical-experimental methods. The mathematical model resulting from these researches is accurately enough to describe the real situation. This was confirmed by comparing the results obtained based on the model with real experimental values.

Novel Technologıes and Nanotoxıcology of Medıcal Implants

2020 ◽  
Vol 16 ◽  
Author(s):  
Ramazan Akçan ◽  
Halit Canberk Aydogan ◽  
Mahmut Şerif Yıldırım ◽  
Burak Taştekin ◽  
Necdet Sağlam
Keyword(s):  
Human Health ◽  
Human Body ◽  
Diagnostic Procedures ◽  
Toxic Effects ◽  
Medical Implants ◽  
Healthcare Applications ◽  
Detailed Review ◽  
Novel Technologies ◽  
Technological Developments

Background/aim: Use of nanomaterials in the healthcare applications increases in parallel to technological developments. It is frequently utilized in diagnostic procedures, medications and in therapeutic implementations. Nanomaterials take place among key components of medical implants, which might be responsible for certain toxic effects on human health at nano-level. In this review, nanotoxicological effects, toxicity determination of nanobiomaterials used in human body and their effects on human health are discussed. Material and Method: A detailed review of related literature was performed and evaluated as per nanomaterials and medical implants. Results and Conclusion: The nanotoxic effects of the materials applied to human body and the determination of its toxicity are important. Determination of toxicity for each nanomaterial requires a detailed and multifactorial assessment considering the properties of these materials. There are limited studies in the literature regarding the toxic effects of nanomaterials used in medical implants. Although these implants are potentially biocompatible and biodegradable, it is highly important to discuss nanotoxicological characteristics of medical implant.

Property in Human Body Parts

2020 ◽  
Author(s):  
Justine Pila
Keyword(s):  
Intellectual Property ◽  
Property Rights ◽  
Human Body ◽  
First Principles ◽  
The Political ◽  
Body Parts ◽  
Cautionary Tale ◽  
Regulatory Approach ◽  
Legal Position ◽  
The Law

This chapter surveys the current legal position concerning property in bodies and bodily materials. Of especial relevance in the current age of advanced genetic and other bio technologies, it looks beyond property in bodies and their materials ‘as such’ to consider also (a) the availability of rights of personal and intellectual property in objects incorporating or derived from them, and (b) the reliance on quasi-property rights of possession and consent to regulate the storage and use of corpses and detached bodily materials, including so-called ‘bio-specimens’. Reasoning from first principles, it highlights the practical and conceptual, as well as the political and philosophical, difficulties in this area, along with certain differences in the regulatory approach of European and US authorities. By way of conclusion, it proposes the law of authors’ and inventors’ rights as simultaneously offering a cautionary tale to those who would extend the reach of property even further than it extends currently and ideas for exploiting the malleability of the ‘property’ concept to manage the risks of extending it.

scholarly journals Protein Hydrogels: The Swiss Army Knife for Enhanced Mechanical and Bioactive Properties of Biomaterials

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1656
Author(s):  
Carla Huerta-López ◽  
Jorge Alegre-Cebollada
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Polymer Networks ◽  
Biological Tissues ◽  
Modern Medicine ◽  
Body Parts ◽  
Biomedical Sciences ◽  
Protein Hydrogels ◽  
Large Water ◽  
Design Options

Biomaterials are dynamic tools with many applications: from the primitive use of bone and wood in the replacement of lost limbs and body parts, to the refined involvement of smart and responsive biomaterials in modern medicine and biomedical sciences. Hydrogels constitute a subtype of biomaterials built from water-swollen polymer networks. Their large water content and soft mechanical properties are highly similar to most biological tissues, making them ideal for tissue engineering and biomedical applications. The mechanical properties of hydrogels and their modulation have attracted a lot of attention from the field of mechanobiology. Protein-based hydrogels are becoming increasingly attractive due to their endless design options and array of functionalities, as well as their responsiveness to stimuli. Furthermore, just like the extracellular matrix, they are inherently viscoelastic in part due to mechanical unfolding/refolding transitions of folded protein domains. This review summarizes different natural and engineered protein hydrogels focusing on different strategies followed to modulate their mechanical properties. Applications of mechanically tunable protein-based hydrogels in drug delivery, tissue engineering and mechanobiology are discussed.

3D-printing human body parts

2017 ◽  
Vol 60 (10) ◽  
pp. 15-17 ◽  
Author(s):  
Keith Kirkpatrick
Keyword(s):  
3D Printing ◽  
Human Body ◽  
Body Parts

scholarly journals Numerical Studies of the Effects of Water Capsules on Self-Healing Efficiency and Mechanical Properties in Cementitious Materials

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Haoliang Huang ◽  
Guang Ye
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Cementitious Materials ◽  
Self Healing ◽  
Negative Effects ◽  
Numerical Studies ◽  
Healing Efficiency ◽  
The Impact ◽  
Positive Effect

In this research, self-healing due to further hydration of unhydrated cement particles is taken as an example for investigating the effects of capsules on the self-healing efficiency and mechanical properties of cementitious materials. The efficiency of supply of water by using capsules as a function of capsule dosages and sizes was determined numerically. By knowing the amount of water supplied via capsules, the efficiency of self-healing due to further hydration of unhydrated cement was quantified. In addition, the impact of capsules on mechanical properties was investigated numerically. The amount of released water increases with the dosage of capsules at different slops as the size of capsules varies. Concerning the best efficiency of self-healing, the optimizing size of capsules is 6.5 mm for capsule dosages of 3%, 5%, and 7%, respectively. Both elastic modulus and tensile strength of cementitious materials decrease with the increase of capsule. The decreasing tendency of tensile strength is larger than that of elastic modulus. However, it was found that the increase of positive effect (the capacity of inducing self-healing) of capsules is larger than that of negative effects (decreasing mechanical properties) when the dosage of capsules increases.

scholarly journals Mechanical properties of zirconium alloys and zirconium hydrides predicted from density functional perturbation theory

2015 ◽  
Vol 44 (43) ◽  
pp. 18769-18779 ◽  
Author(s):  
Philippe F. Weck ◽  
Eunja Kim ◽  
Veena Tikare ◽  
John A. Mitchell
Keyword(s):  
Mechanical Properties ◽  
Perturbation Theory ◽  
Elastic Properties ◽  
Density Functional ◽  
Mechanical Stability ◽  
Zirconium Alloys ◽  
Density Functional Perturbation Theory ◽  
Zirconium Hydrides

The elastic properties and mechanical stability of zirconium alloys and zirconium hydrides have been investigated within the framework of density functional perturbation theory. Results show that the lowest-energy Pn3̄m δ-ZrH1.5 phase is not mechanically stable.

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