1,829 research outputs found
Biobased materials for skin-contact products promoted by POLYBIOSKIN project
No full textThe skin is the body outermost tissue and acts as a barrier and defense line to protect our organs [...]
THE CIRCULAR ECONOMY AND BUILT ENVIRONMENT. MAINTENANCE, REHABILITATION AND ADAPTIVE REUSE: CHALLENGING STRATEGIES FOR CLOSING LOOPS
No full textThis paper discusses attitudes towards maintenance, rehabilitation, and adaptive reuse as strategies to give new life to decaying and abandoned spatial and social contexts (World Economic Forum, 2018). The methodology is based on a mixed deductive and inductive approach, following three main steps: 1) conceptual framework; 2) design actions; 3) best practices screening. Through matching values preservation with resource optimization, life cycle lengthening emerges as a privileged medium for passing past identities to the future. Saving the performance of spaces or devicesis the approach suggested to fit best within a built system with high prior degrees of stiffness, working procedures, operators, and scheduled times. Integrating new systems and processes alongsideexisting ones is a way to manage aging processes, as well as transferring, planning, and testing final suitability
PIDR(s): IDR(s) as a Projection Method
No full textThe Induced Dimension Reduction(s) method (or the IDR(s) method) is an example of an iterative method used for solving systems of linear equations. Projection methods are a special type of iterative method. They find an approximate solution in a subspace (the right subspace) by requiring that the residual is orthogonal to another subspace (the left subspace). In this thesis we investigate how we can implement IDR(s) as a projection method. We call this method IDR(s), which stands for Projected IDR(s).We present an implementation of PIDR(s) for solving systems of linear equations and for solving eigenvalue problems. These implementations are not meant to be optimal, but they are used to show that IDR(s) can indeed be seen as a projection method.Track: educationScience Education and CommunicationApplied Science
Skin and pollution: the smart nano-based cosmeceutical-tissues to save the planet’ ecosystem
No full textNanotechnology is key to the design and manufacture of the new generation of cosmetics. Nanotechnology can enhance the performance and properties of cosmetics, including colour, transparency, solubility, texture, and durability. Sunscreen products, such as UV nano-filters, nano-TiO2 and nano-ZnO particles, can offer an advantage over their traditional counterparts due to their broad UV-protection and non-cutaneous side effects. For perfumes, nano‐droplets can be found in cosmetic products including Eau de Toilette and Eau de Parfum.
Nanomaterials can also be used in cosmetics as transdermal drug delivery systems. By using smart nanocontainers, active compounds such as vitamins, antioxidants, nutrients, and anti-inflammatory, anti-infective agents, can be delivered effectively. These smart nanocontainers are typically related with the smart releasing property for their embedded active substances. These smart releases could be obtained by using the smart coatings as their outer nano-shells. These nano-shells could prevent the direct contact between these active agents and the adjacent local environments.
Nanocosmetics: Fundamentals, Applications and Toxicity explores the formulation design concepts and emerging applications of nanocosmetics. The book also focuses on the mitigation or prevention of their potential nanotoxicity, potential global regulatory challenges, and the technical challenges of mass implementation. It is an important reference source for materials scientists and pharmaceutical scientists looking to further their understanding of how nanotechnology is being used for the new generation of cosmetics
Actie podium van de stad - De plek voor overlapping van publieke en private actie; onderzoeksrapport. Het grote huis en de kleine stad - de stad van ankers in plaats van wortels; essay, onderdeel van onderzoeksrapport.
No full textHet onderzoeksrapport is in samenwerking van bovengenoemde auteurs tot stand gekomen. Het essay is enkel geschreven door M.B. Dekker.At home in the city - BerlinDwellingArchitectur
MECHANICAL, RHEOLOGICAL AND THERMAL EVALUATION OF POLY(LACTIC ACID) (PLA)/MICRO FIBRILLATED CELLULOSE (MFC) PLASTICIZED BIOCOMPOSITES PRODUCED WITH FLAT DIE EXTRUSION AND CALENDERING
No full textThe use of Micro Fibrillated Cellulose (MFC) as filler for polymeric matrices attempts
an increasing interest both in academia and industry. In this framework, encouraging results have been obtained using plasticizers, as dispersing aids, during twin-screw extrusion that optimizes the process parameters and avoid MFC agglomeration. In this work, two commercial typologies of waterborne solution of MFC (Exilva and Celish) were melt-compounded in a PLA matrix through semi-industrial twin-screw extruder and calendered, producing films of 150 μm thickness. These films were mechanically and thermally characterized, moreover the migration of the plasticizer along the time was evaluated through analytical model and the diffusion coefficient was calculated
Author Correction:A 41,500 year-old decorated ivory pendant from Stajnia Cave (Poland)
No full textCorrection to: Scientific Reports https://doi.org/10.1038/s41598-021-01221-6, published online 25 November 2021The original version of this Article contained errors in the author list where Marjolein D. Bosch was omitted from the author list, and Mikołaj Urbanowski was incorrectly listed as an author of the original Article, and has subsequently been removed.The Author contributions section now reads:“S.T. W.N. and A.N. conceived the project; S.T., W.N., A.P., M.B., S.C., M.D., H.F., A.M., M.D. B., D.P., M.P.R., C.M.R., V.S-M., G.M.S., P.S., M.S., K.S., A.V., F.W., H.W., A.W., M.Z., S.B., A.N., J-J. H., performed research; S.T., A.P., W.N., M.B., M.D.B., S.C., M.D., H.F., A.M., D.P., M.P.R., C.M.R., V.S-M., G.M.S., P.S., M.S., K.S., A.V., F.W., H.W., A.W., M.Z., S.B., A.N., J-J. H. analysed all archaeological data; S.T. and A.P. wrote the paper with the collaboration of all the co-authors.”The original Article and its accompanying Supplementary Information file have been corrected
Internet and e-health Care: an Interdigital Field of Study
No full textThe foreword focuses on a historical definition of the e-health field. The author contributed to shaping the e-health field in the international community being one of the pioneers' scholars since the 1990s. The chapter discusses current and challenging future scenarios based on the international evolution that brings about new challenges
LA PRIMA RICEZIONE DELLA FENOMENOLOGIA NEGLI STATI UNITI: UN'ANALISI STORICO-CRITICA
No full textMy research analyzes the characteristics of the first reception of husserlian phenomenology in the United States. The base of this work is a detailed historiographical reconstruction of this phase representing the point of departure of all those studies on phenomenological tradition that have been developed in the American academic world. Several institutions belong to the context in which this reception took place: the New School for Social Research as the original center for the teaching of phenomenology and a number of societies arisen since the sixties to diffuse Husserl’s philosophy in the United States (First Part: Chapter 2 and Chapter 3).
This first reception, promoted since the late thirties by Kaufmann, Schutz, Gurwitsch, Cairns and Farber, must be distinguished from an earlier phase, presenting only the general approach to Husserl’s thought of some American scholars (Second Part: Chapter 1). The origin of the studies of each author undoubtedly typifies their promotion of husserlian phenomenology: Gurwitsch, Schutz and Kaufmann belong to the European tradition, (First Part: Chapter 1) while the Americans Farber and Cairns mainly owe the growing interest in Husserl’s thought to their studies in Freiburg (Second Part: Chapter 2). Nevertheless, during this phase of reception of phenomenology, the original adherence to his lesson – useful to distinguish them from others Husserl’s students emigrated in United States – gradually disappears from their critiques. The aim of my research is to single out the salient features that characterize the different interpretations of Husserl’s thought elaborated by each author, whereas their originality can be indicated as decisive for following developments (Third Part). Gurwitsch builds an interesting critique of Husserl’s whole-part theory, focuses his analysis on the noema, and elaborates a non-egological conception of consciousness. Schutz’s critique of transcendental phenomenology mainly refers to his concept of mundane intersubjectivity. For what concerns Cairns, his few writings published until now don’t allow to deepen the exam on his interpretation. After the arrival in the United States, Kaufmann concentrates his discussion on the relationship between husserlian phenomenology and the logic. Farber proposes a critique which is far from being an original interpretation, although his analysis remains bound to the interest in phenomenology until the end.
With this work I want to explain how the interest about husserlian phenomenology began in the United States, who were its promoters, and also what kind of interpretations they developed in the American academic world. It must be considered that they hadn’t a decisive influence on further developments of phenomenological studies, but in any case helped bringing the attention on Husserl’s thought throughout their teaching
Fracture behavior and mechanical, thermal, and rheological properties of biodegradable films extruded by flat die and calender
No full textThe development of biodegradable materials for tailored applications, particularly in the field of polymeric films and sheets, is a challenging technological goal as well as a contribution to help protect the environment. Poly(lactic) acid (PLA) is a promising substitute for several oil-based polymers; however, to overcome its thermal and mechanical drawbacks, researchers have developed solutions such as blending PLA with polybutylene adipate terephthalate (PBAT), which is capable of increasing the ductility of the final material. In this study, PLA/PBAT binary blends, with minimum possible content of nonrenewable materials, were examined from processing, thermal, morphological, and rheological perspective. An optimized PLA/PBAT ratio was chosen as the polymeric basis to obtain a biodegradable formulation by adding a biobased plasticizer and appropriate fillers to produce a micrometer film with tailored flexibility and tear resistance. The processing technology involved flat-die extrusion, followed by calendering. The tearing resistance of the produced film was investigated, and the results were compared with literature data. A study on the essential work of fracture was implemented to explore the mode III out-of-plane fracture resistance starting from a trouser tear test
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