Self-evolving materials based on metastable-to-stable crystal transition of polymorphic polyolefin

2022 ◽  
Author(s):  
Wenhua Yuan ◽  
Chengtao Yu ◽  
Shanshan Xu ◽  
Lingling Ni ◽  
Wenqing Xu ◽  
...  

Living organisms can self-evolve with time in order to adapt to natural environment. Analogically, self-evolving materials also show similar properties based on a non-equilibrium structural transformation. The common design of...

Author(s):  
Monika Rogowska-Stangret ◽  
Olga Cielemęcka

      As Serpil Oppermann has stated “the Anthropocene has come to signify a discourse embedded in the global scale vision of the sedimentary traces of the anthropos” (“The Scale of the Anthropocene” 2). In the following article we wish to revisit the practice of leaving traces through thinking with wastes as traces human beings leave behind and lands of waste that co-compose today’s naturecultures (Haraway, Companion Species). Situating our research in the context of Polish ecocriticism, we would like to think-with an art project by Diana Lelonek entitled Center for the Living Things, in which the artist gathers and exhibits waste that “have become the natural environment for many living organisms” (Lelonek). Following the ambivalent and chaotic traces of wastes, we offer a concept of stig(e)merging to rethink the “unruly edges” (Tsing 141-54) of capitalist wastelands. We fathom stig(e)merging as a feminist methodology that relies on reacting to changes and alterations in the milieu, as well as the actions and needs of others, and on participating in the common work of reshaping the un/wasted world together with them.


Author(s):  
Philip James

The focus of this chapter is an examination of the diversity of living organisms found within urban environments, both inside and outside buildings. The discussion commences with prions and viruses before moving on to consider micro-organisms, plants, and animals. Prions and viruses cause disease in plants and animals, including humans. Micro-organisms are ubiquitous and are found in great numbers throughout urban environments. New technologies are providing new insights into their diversity. Plants may be found inside buildings as well as in gardens and other green spaces. The final sections of the chapter offer a discussion of the diversity of animals that live in urban areas for part or all of their life cycle. Examples of the diversity of life in urban environments are presented throughout, including native and non-native species, those that are benign and deadly, and the common and the rare.


Author(s):  
Valerio Lucarini ◽  
Grigorios A. Pavliotis ◽  
Niccolò Zagli

We study the response to perturbations in the thermodynamic limit of a network of coupled identical agents undergoing a stochastic evolution which, in general, describes non-equilibrium conditions. All systems are nudged towards the common centre of mass. We derive Kramers–Kronig relations and sum rules for the linear susceptibilities obtained through mean field Fokker–Planck equations and then propose corrections relevant for the macroscopic case, which incorporates in a self-consistent way the effect of the mutual interaction between the systems. Such an interaction creates a memory effect. We are able to derive conditions determining the occurrence of phase transitions specifically due to system-to-system interactions. Such phase transitions exist in the thermodynamic limit and are associated with the divergence of the linear response but are not accompanied by the divergence in the integrated autocorrelation time for a suitably defined observable. We clarify that such endogenous phase transitions are fundamentally different from other pathologies in the linear response that can be framed in the context of critical transitions. Finally, we show how our results can elucidate the properties of the Desai–Zwanzig model and of the Bonilla–Casado–Morillo model, which feature paradigmatic equilibrium and non-equilibrium phase transitions, respectively.


Author(s):  
Sanja Tatalović Vorkapić ◽  
Petra Prović

The Positive Psychology frame and definition present a natural environment for understanding and researching children's play in the context of nurturing overall positive characteristics in children's development. Therefore, this article presents a structured review of the common ground between the basic principles of positive psychology and children's play in the context of early and preschool institutions. Also, it demonstrates the implementation of positive psychology principles in children's play and the methods by which positive psychology could be promoted through children's play in kindergartens. Within that frame, the importance is given to the needed preschool teachers' competences in this area. In this context, various activities are presented that reflect a common ground of positive psychology and children's play. Finally, some significant guidelines for future research and practice enhancement are presented.


Author(s):  
Hakan Sezerel ◽  
Cihan Kaymaz

Does development mean employment and social welfare, or the natural environment, ecosystem, and biodiversity? The answer to this question is sought worldwide while trying to solve the dichotomy between ecological sustainability and the development sustainability. The authors observe a series of pursuits under the names of ecological tourism, environmentally friendly tourism, and socially responsible tourism that emerge in order to overcome this dichotomy in the tourism discipline. They all merge around the common idea of offering a framework that examines economic activities for this dilemma. Meanwhile, this chapter examines the pursuits within the scope of sustainable tourism based on the assumptions of principal ecological approaches (e.g., environment protection, shallow ecology, deep ecology, and social ecology) and determines the position of sustainable tourism within these ecological approaches. It is deduced that sustainable tourism is actually sustainable at very low levels from the perspective of ecological sustainability.


2009 ◽  
Vol 15 (4) ◽  
pp. 203-210 ◽  
Author(s):  
Ana Grancaric ◽  
Anita Tarbuk ◽  
Ivancica Kovacek

Activated natural zeolite clinoptilolite is microporous hydrated aluminosilicates crystals with well-defined structures containing AlO4 and SiO4 tetrahedral linked through the common oxygen atoms. It is to point out that zeolites act as strong adsorbents and ion-exchangers but having many other useful properties. Due to its cationexchange ability, zeolites have catalytic properties and, for that, multiple uses in medicine and industry, agriculture, water purification and detergents. Zeolites are nontoxic substance, excellent for UVR and microbes protection, for proteins and small molecules such as glucose adsorption. In this paper its positive effect on the metabolism of living organisms and its anticancerogenic, antiviral, antimetastatic and antioxidant effect. The activity of natural zeolite as natural immunostimulator was presented as well as its help in healing wounds. Therefore, the present paper is an attempt to modify cotton (by mercerization) and polyester (by alkaline hydrolysis) fabrics for summer clothing with addition of natural zeolite nanoparticles for achieving UV and antibacterial protective textiles.


Geosciences ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 242
Author(s):  
Anna V. Mikhailenko ◽  
Dmitry A. Ruban ◽  
Vladimir A. Ermolaev ◽  
A.J. (Tom) van Loon

Cadmium is a highly-toxic metal, and, its environmental occurrence and human exposure consequently deserve close attention. The insight into the relationships between cadmium and tourism relations has deepened during the past three decades and the research into this relationship is reviewed. For this purpose, 83 relevant publications (mainly articles in international journals) were analyzed. It was found that investigation of Cd in the tourism environment took place in all continents (except Antarctica) and has intensified since the mid-2000s; Chinese researchers are the most active contributors. The Cd occurrence in air, living organisms, sediments, soil, suspended particular matter, water, and of the human environment has been studied. It has become clear that tourism contributes to Cd pollution (particularly, by hotel wastewater and increased traffic), and, vice versa, Cd pollution of beaches, coastal waters, food, urban parks, etc. creates risks for tourists and increases human exposure to this toxic metal. Both mechanisms have received equal attention. Examples concern many places worldwide, with the Mediterranean and Central and Eastern Europe as apparently critical regions. Our significantly incomplete knowledge of the relationships between cadmium and tourism must be ascribed to the common oversimplification of these relationships and to the scarcity or even absence of information supplied by the most important tourist destinations. The present review demonstrates that more studies of heavy metals and, particularly, Cd in the tourism environment are needed.


2016 ◽  
Author(s):  
Maria Pilar Buera ◽  
Yrjö Roos ◽  
Harry Levine ◽  
Louise Slade ◽  
Horacio R. Corti ◽  
...  

2017 ◽  
Vol 66 (1) ◽  
pp. 153-167
Author(s):  
Władysław Harmata ◽  
Zbigniew Szcześniak ◽  
Marian Sobiech

The paper describes general rules for the use of collective protection against contamination. There are presented certain recommendations for functional and operational requirements in the case of collective protection measures. The functional and maintenance recommendations are described in the field of the collective protection against modern agents in the concern of the hardened facilities in relation to the ventilation systems and objects themselves. Individual protection is a key element of dealing in the massive destruction weapon (MDW) environment. The protective cloth provides the capability of working in a contaminated area but it makes individuals less operable and effective, also in the lasting. The common collec-tive protection is organized for people (solders or civilians) to be able to operate in a contaminated area. It means, that there are necessary certain facilities which protect personnel against toxics. The point of the collective protection is to keep an environment adequate for defense missions, rest, or decontamination. These facilities give more light feeling in the physical and psychological sense of dealing without the individual protective cloth. There is also a description of the ventilation system’ objects, depending on the type of collective protection systems. Keywords: construction, chemical toxics, protection of exercising personnel and natural environment


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