Two Stage Colour Modulation of Triarylmethine Dyes Derived from a Photochromic Naphthopyran

Abstract

The synthesis of the unsymmetrical triarylmethine dyes 4derived from a lithiated naphthopyran and diaryl ketones is reported. In toluene solution 4 display a typical reversible photochromic response becoming coloured upon irradiation with UV light and fading upon cessation of irradiation. At low pH an intensely coloured dye cation is generated and UV irradiation of this solution results in a further colour change as a consequence of photochromic cycling of the naphthopyran unit.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

Burnout Syndrome in Occupational Therapists in Spain: Prevalence and Risk Factors

“…Burnout syndrome makes reference to "a syndrome of emotional fatigue, depersonalisation and reduction of personal satisfaction that can arise in people who work with people with any kind of disabilities" [1]. This is a response to events in the labour context over a prolonged time [2,3] that deploys itself through the manifestation of global signs and symptoms that vary depending on the person [3], emerging in an accumulative way and increasing progressively the severity of the symptoms [4]. It is characterised by three dimensions: emotional fatigue, depersonalisation of the treatment of people and difficulty for feeling a sense of reduction of personal satisfaction [2,5].…”

“…Burnout syndrome provokes serious consequences in the medium and long term at different levels [2]. At the individual level, it can cause chronic fatigue, cephalea, muscle soreness, sleeping disorders, hypertension, a higher incidence of alcohol and drugs abuse and a tendency to have accidents [6].…”

“…At the individual level, it can cause chronic fatigue, cephalea, muscle soreness, sleeping disorders, hypertension, a higher incidence of alcohol and drugs abuse and a tendency to have accidents [6]. At a cognitive-emotional level, it creates a feeling of helplessness and failure, anxiety, difficulty concentrating and making decisions, self-esteem decrease, negative assessment and suicidal thoughts [2,6]. With regards to the socio-familiar level, deterioration of interpersonal relationships and an increase in family problems can be seen as well [2,7].…”

“…At a cognitive-emotional level, it creates a feeling of helplessness and failure, anxiety, difficulty concentrating and making decisions, self-esteem decrease, negative assessment and suicidal thoughts [2,6]. With regards to the socio-familiar level, deterioration of interpersonal relationships and an increase in family problems can be seen as well [2,7]. At an organisational level, some consequences are absenteeism, increase in staff rotations and deterioration of the quality of the services as well as the interventions performed by the occupational therapists themselves [5].…”

“…At an organisational level, some consequences are absenteeism, increase in staff rotations and deterioration of the quality of the services as well as the interventions performed by the occupational therapists themselves [5]. Likewise, burnout syndrome poses an increasing social and public health problem with an impact on the health of professionals [2,8,9] and implication of high social and economic costs [10].…”