This article presents an introduction to the Health Belief Model (HBM). The HBM states that the perception of a personal health behavior threat is influenced by at least three factors: general health values, interest and concern about health; specific beliefs about vulnerability to a particular health threat; and beliefs about the consequences of the health problem. Once an individual perceives a threat to his health and is simultaneously cued to action, if his perceived benefits outweighs his perceived costs, then the individual is most likely to undertake the recommended preventive health action. Key words: health promotion, health belief model, perceived susceptibility, perceived severity, perceived benefits, perceived barriers, cues to action, self-efficacy. Content available only in Romanian.

Health Belief Model

Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003

Spontaneous, single-walled, equilibrium vesicles can be prepared from aqueous mixtures of simple, commercially available, single-tailed cationic and anionic surfactants. Vesicle size, surface charge, or permeability can be readily adjusted by varying the ratio of anionic to cationic surfactant. Vesicle formation apparently results from the production of anion-cation surfactant pairs that then act as double-tailed zwitterionic surfactants. These vesicles are quite stable in comparison to conventional vesicles prepared by mechanical disruption of insoluble liquid crystalline dispersions.

http://science.sciencemag.org/content/sci/245/4924/1371.full.pdf

Spontaneous vesicle formation in aqueous mixtures of single-tailed surfactants

Association and segregation in aqueous polymer/polymer, polymer/surfactant, and surfactant/surfactant mixtures: similarities and differences

Hongyuan Yan and Kyung Ho Row* Center for Advanced Bioseparation Technology, Department of Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon, 402–751, Korea * Corresponding author. E-mail: rowkho@inha.ac.kr Received: 12 April 2006 / Accepted: 27 June 2006 / Published: 29 June 2006 Abstract: Molecularly imprinted polymers (MIP) exhibiting high selectivity and affinity to the predetermined molecule (template) are now seeing a fast growing research. However, optimization of the imprinted products is difficult due to the fact that there are many variables to consider, some or all of which can potentially impact upon the chemical, morphological and molecular recognition properties of the imprinted materials. This review present a summary of the principal synthetic considerations pertaining to good practice in the polymerization aspects of molecular imprinting, and is primarily aimed at researcher familiar with molecular imprinting methods but with little or no prior experience in polymer synthesis. The synthesis, characteristic, effect of molecular recognition and different preparation methods of MIP in recent few years are discussed in this review, unsolved problems and possible developments of MIP were also been briefly discussed. Keywords: molecularly imprinted polymer, special molecular recognition, synthetic approach 1. Molecular Imprinting Technology Molecular imprinting technology is a rapidly developing technique for the preparation of polymers having specific molecular recognition properties for a given compound, its analogues or for a single enantiomer [1-3]. Synthesis of MIP is a relatively straightforward and inexpensive procedure. In short, the molecularly imprinted polymer is prepared by mixing the template molecule with functional monomers, cross-linking monomers and a radical initiator in a proper solvent, most often an aprotic and non polar solvent. Subsequently, this pre-polymerization mixture is irradiated with UV light or

/pdf/characteristic-and-synthetic-approach-of-molecularly-4qg1pl3pgs.pdf

Characteristic and synthetic approach of molecularly imprinted polymer

Can we rationally design molecularly imprinted polymers

Catanionic surfactants: phase behavior and microemulsions

Phase equilibria in the sodium octanoate-octylammonium octanoate-water system

We have studied the equilibrium between a lamellar phase and crystalline salts in a four-component system containing both a cationic and an anionic surfactant in water. The chemical potentials for the different components have been derived from a thermodynamic model for the free energy.

Phase equilibria in systems containing both an anionic and a cationic amphiphile. A thermodynamic model calculation

Digital contact tracing applications (CTAs) have been one of the most widely discussed technical methods of controlling the COVID-19 outbreak. The effectiveness of this technology and its ethical justification depend highly on public acceptance and adoption. This study aims to describe the current knowledge about public acceptance of CTAs and identify individual perspectives, which are essential to consider concerning CTA acceptance and adoption. In this scoping review, 25 studies from four continents across the globe are compiled, and critical topics are identified and discussed. The results show that public acceptance varies across national cultures and sociodemographic strata. Lower acceptance among people who are mistrusting, socially disadvantaged, or those with low technical skills suggest a risk that CTAs may amplify existing inequities. Regarding determinants of acceptance, eight themes emerged, covering both attitudes and behavioral perspectives that can influence acceptance, including trust, privacy concerns, social responsibility, perceived health threat, experience of and access to technologies, performance expectancy and perceived benefits, and understanding. Furthermore, widespread misconceptions about the CTA function are a topic in need of immediate attention to ensure the safe use of CTAs. The intention-action gap is another topic in need of more research.

Päivi Jokela

Papers

Can we rationally design molecularly imprinted polymers

Catanionic surfactants: phase behavior and microemulsions

Phase equilibria in the sodium octanoate-octylammonium octanoate-water system

Phase equilibria in systems containing both an anionic and a cationic amphiphile. A thermodynamic model calculation

Digital Contact Tracing Applications during COVID-19: A Scoping Review about Public Acceptance