43,421 research outputs found
An investigation on the skewness patterns and fractal nature of research productivity distributions at field and discipline level
The paper provides an empirical examination of how research productivity
distributions differ across scientific fields and disciplines. Productivity is
measured using the FSS indicator, which embeds both quantity and impact of
output. The population studied consists of over 31,000 scientists in 180 fields
(10 aggregate disciplines) of a national research system. The Characteristic
Scores and Scale technique is used to investigate the distribution patterns for
the different fields and disciplines. Research productivity distributions are
found to be asymmetrical at the field level, although the degree of skewness
varies substantially among the fields within the aggregate disciplines. We also
examine whether the field productivity distributions show a fractal nature,
which reveals an exception more than a rule. Differently, for the disciplines,
the partitions of the distributions show skewed patterns that are highly
similar
Measuring Perceived Effects of Drinking an Extract of Basidiomycetes Agaricus Blazei Murill: A Survey of Japanese Consumers with Cancer
BACKGROUND. To survey cancer patients who consume an extract of the Basidiomycetes Agaricus blazei Murill mushroom (Sen-Sei-Ro) to measure their self-assessment of its effects and to develop an instrument for use in future randomized trials. METHODS. We designed, translated and mailed a survey to 2,346 Japanese consumers of Sen-Sei-Ro self-designated as cancer patients. The survey assessed consumer demographics, cancer history, Sen-Sei-Ro consumption, and its perceived effects. We performed exploratory psychometric analyses to identify distinct, multi-item scales that could summarize perceptions of effects. RESULTS. We received completed questionnaires from 782 (33%) of the sampled Sen-Sei-Ro consumers with a cancer history. Respondents represented a broad range of cancer patients familiar with Sen-Sei-Ro. Nearly all had begun consumption after their cancer diagnosis. These consumers expressed consistently positive views, though not extremely so, with more benefit reported for more abstract benefits such as emotional and physical well-being than relief of specific symptoms. We identified two conceptually and empirically distinct and internally consistent summary scales measuring Sen-Sei-Ro consumers' perceptions of its effects, Relief of Symptoms and Functional Well-being (Cronbach's alpha: Relief of Symptoms, α = .74; Functional Well-Being, α = .91). CONCLUSION. Respondents to our survey of Sen-Sei-Ro consumers with cancer reported favorable perceived effects from its use. Our instrument, when further validated, may be a useful outcome in trials assessing this and other complementary and alternative medicine (CAM) substances in cancer patients.Kyowa-S.S.I., Tokyo, Japa
Validation of the Vaccination Confidence Scale: A Brief Measure to Identify Parents at Risk for Refusing Adolescent Vaccines
Objective To validate a brief measure of vaccination confidence using a large, nationally representative sample of parents. Methods We analyzed weighted data from 9018 parents who completed the 2010 National Immunization Survey–Teen, an annual, population-based telephone survey. Parents reported on the immunization history of a 13- to 17-year-old child in their households for vaccines including tetanus, diphtheria, and acellular pertussis (Tdap), meningococcal, and human papillomavirus vaccines. For each vaccine, separate logistic regression models assessed associations between parents\u27 mean scores on the 8-item Vaccination Confidence Scale and vaccine refusal, vaccine delay, and vaccination status. We repeated analyses for the scale\u27s 4-item short form. Results One quarter of parents (24%) reported refusal of any vaccine, with refusal of specific vaccines ranging from 21% for human papillomavirus to 2% for Tdap. Using the full 8-item scale, vaccination confidence was negatively associated with measures of vaccine refusal and positively associated with measures of vaccination status. For example, refusal of any vaccine was more common among parents whose scale scores were medium (odds ratio, 2.08; 95% confidence interval, 1.75–2.47) or low (odds ratio, 4.61; 95% confidence interval, 3.51–6.05) versus high. For the 4-item short form, scores were also consistently associated with vaccine refusal and vaccination status. Vaccination confidence was inconsistently associated with vaccine delay. Conclusions The Vaccination Confidence Scale shows promise as a tool for identifying parents at risk for refusing adolescent vaccines. The scale\u27s short form appears to offer comparable performance
How long do top scientists maintain their stardom? An analysis by region, gender and discipline: evidence from Italy
We investigate the question of how long top scientists retain their stardom.
We observe the research performance of all Italian professors in the sciences
over three consecutive four-year periods, between 2001 and 2012. The top
scientists of the first period are identified on the basis of research
productivity, and their performance is then tracked through time. The analyses
demonstrate that more than a third of the nation's top scientists maintain this
status over the three consecutive periods, with higher shares occurring in the
life sciences and lower ones in engineering. Compared to males, females are
less likely to maintain top status. There are also regional differences, among
which top status is less likely to survive in southern Italy than in the north.
Finally we investigate the longevity of unproductive professors, and then check
whether the career progress of the top and unproductive scientists is aligned
with their respective performances. The results appear to have implications for
national policies on academic recruitment and advancement
Integrating Ayurvedic Concepts with Western Measures for Treating Mental Health in India
With a steadily growing population that has just reached over 1 billion people, India is on track to become the most populated country on earth. With this population continuing to grow, the issue of mental health within the subcontinent is becoming increasingly important. The “Western” ideas and concepts of mental health are heavily considered as taboo within many parts of India due to socio-cultural reasons, limiting the response to mental health problems. However, the integration of indigenous concepts and techniques from Ayurvedic medicine can ameliorate socio-cultural concerns and thus be the key to make progress addressing mental health in India. Ayurveda has been established as the traditional system of healthcare in India for thousands of years. The basis of Ayurveda revolves around the three Doshas, which are different combinations of characteristics that influence our physical and mental tendencies. The three Doshas are Vatta, Pitta, and Kapha. These Doshas along with their meanings and characteristics that they represent in terms of well being have great potential to be integrated alongside western measures of mental health in a clinical setting. For this poster, I will cover a few examples from classical Ayurvedic thought and contemporary discussions that detail how Ayurvedic techniques can be paired with mainstream western measures of mental health to assess and treat these health issues
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