Search results for "ALERTNESS"
showing 10 items of 31 documents
Antecedents of International Opportunity Recognition in Born Global Firms
2017
ABSTRACTInternational opportunity recognition has become an important field of research in recent years. This study deals with the effects of entrepreneurial alertness, systematic search, prior knowledge, and social networks on first-time international opportunity recognition of entrepreneurs inside born global firms. In order to answer this research question, a quantitative survey within born global firms was conducted. The empirical results demonstrate that entrepreneurs of born global firms tend to recognize the first international opportunity through a combination of entrepreneurial alertness and systematic search. Furthermore, network relationships are essential for entrepreneurs withi…
Three-Way Interactions Among Interruptions/Multitasking Demands, Occupational Age, and Alertness: A Diary Study
2015
In this study, we examined the within-person relationships between workday “cognitive” stressors (multitasking demands and workflow interruptions) and strain (situational well-being throughout the day and irritation in the evening). We hypothesized that occupational age, in terms of job tenure and an indicator of functional age (alertness), would moderate these relationships in that employees with low experience and low alertness would suffer most from the stressors. We conducted a 5-day diary study in a sample of 123 nurses, with 4 measurements per day (3 taken during the work shift and 1 taken in the evening), and 1 survey (occupational age) and computer-based cognitive performance test b…
The self-reported causes of sleepiness in shift-working tram and truck drivers
2021
Identifying the causes of sleepiness in various safety-critical work environments is neces-sary for implementing more efficient fatigue management strategies. In transportation, little is known about drivers' own perceptions of these causes. Therefore, we instructed shift-working tram (n = 23) and long-haul truck drivers (n = 52) to report at the end of their shifts what made them sleepy if they felt so. These self-reports, measured on-duty sleepiness, and sleep amounts were recorded on every shift over a period of 2-3 weeks per driver. The causes of sleepiness were queried with smartphone applications and sleep logs. Sleepiness was measured with the Karolinska Sleepiness Scale (KSS) and sl…
The social entrepreneur: Analysis of social awareness
2015
Resumen Los emprendedores sociales están ganando cierto reconocimiento como uno de los agentes de cambio social más importantes. Aun así, poco se conoce sobre sus motivaciones y el proceso a través del cual sus ideas se conciben y desarrollan. En este trabajo se analiza el proceso de descubrimiento de oportunidades en el caso de los emprendedores sociales, partiendo de la teoría del descubrimiento y del concepto de alerta emprendedora que, en este caso, rebautizamos como alerta social. Para ello se estudia el papel de la formación y la experiencia previa del emprendedor, la cercanía a otros emprendedores y la cercanía al problema social como variables relacionadas con la alerta social. Dada…
Analysis of Social Media Impact on Opportunity Recognition. A Social Networks and Entrepreneurial Alertness Mixed Approach
2020
This paper investigates the effects of social media on entrepreneurial opportunity recognition. Combining the internal and external approaches of opportunity recognition, the study analyzes how social media influences the entrepreneurs in discovering new entrepreneurial opportunities. Structural equation modeling was used in this study, using the variance-based partial least squares (PLS)&ndash
NEW METHODS DEEPENING UNDERSTANDING OF STUDENTS' EXPERIENCES AND THEIR RELATION TO PHYSIOLOGICAL ALERTNESS VARIATIONS DURING LEARNING
2019
In this study we explored whether physiological measurement technologies could be used in a combination with traditional educational research methods to investigate learning experiences. We aimed, first, to explore individual physiological reactions during learning and how these reactions relate to experiences, emotions and contexts of learning and, second, to test new methodology and its suitability for investigating learning. The data was collected during a teacher education programme in a Finnish university. A total of 14 students participated in the study. The data was collected during two contact periods of three days and the weekends after them, ten days in total. We used a mixed meth…
Correlation of cognition and FDG-PET findings in early multiple sclerosis
2007
Introduction: Patients with multiple sclerosis (MS), disease history of 11.5 years, an expanded disability status scale (EDSS) up to 6.0 and an involvement of verbal and/or spatial and long-term memory showed a bilateral reduction of glucose metabolism in the cingulate gyrus, thalamus, associative occipital cortex and cerebellum. To our knowledge no similar studies in early stages of MS are reported. Therefore we stressed the question of possible correlation of quality of life, objective cognitive impairment and FDG-PET findings in newly diagnosed definite MS according to McDonald criteria. Methods: In 11 patients (f=4, m=7, mean age: 35 years (CI 25–42), IQ 112 (CI 97–118)) with newly diag…
Coffee and Anxiety
2015
Abstract This chapter discusses the effects of coffee consumption on anxiety response, taking into account vulnerability factors such as sex and genetics. In light of research concerning the effects of coffee on normal anxiety, and particularly research carried out in our laboratory, current knowledge can be summarized as follows: (1) men appear to be more sensitive to the effects of coffee than women; and (2) coffee can increase alertness in habitual consumers after acute deprivation, but not above the level of that observed in nonconsumers. In addition, we discuss clinical evidence of the varying sensitivity of anxiety disorder patients to the effects of coffee. The caffeine challenge tes…
Recurrent On-Duty Sleepiness and Alertness Management Strategies in Long-Haul Airline Pilots
2018
Introduction We examined whether long-haul airline pilots without recurrent on-duty sleepiness obtain more prior sleep and use more effective in-flight alertness management strategies than their colleagues with recurrent on-duty sleepiness. Methods There were 51 pilots who flew at least twice from Helsinki to Asia. Of them, 44 flew at least twice back to Helsinki following 1 local night. On-duty sleepiness was measured by the Karolinska Sleepiness Scale (KSS), alertness management strategies by a diary, and sleep by a diary and activity monitor. Pilots who rated KSS ≥ 7 on each, some, or none of the flights were classified as "regularly", "sometimes", and "never" sleepy, respectively. This …
Evaluation of endovenous sedation using BIS monitoring in dentistry. A systematic review
2018
Background The aim of the present review was evaluate the utility and validity of the Bispectral Index (BIS) in dental treatment carried out under endovenous sedation, and compare its efficacy with clinical sedation scales. Material and Methods Electronic and manual literature searches were conducted by two independent reviewers for articles published up to April 2017 in several databases, including Medline and Cochrane Library. Results Sixteen articles met the inclusion criteria. A correlation was identified between BIS and clinical sedation scales. A BIS range between 75 and 84 showed a high probability of corresponding to an Observer’s Assessment of Alertness and Sedation Scale (OAA/S) v…