74,945 research outputs found
Effect of health educational intervention based on the educational phase of the PRECEDE-PROCEED model on the promotion of preventive behaviors of brucellosis in the villagers of Minoodasht, Iran
No full textAims Annually, more than half a million people worldwide are infected with brucellosis. Education is one of the basic strategies in controlling and preventing this disease. The PRECEDE model provides a clear framework for planning to change behavior. The factors affecting the behavior in the educational diagnosis stage of this model are categorized. This study aimed to determine the effect of educational intervention based on the educational phase of the PRECEDE-PROCEED model on the improvement of preventative behaviors of brucellosis.
Materials & Methods This semi-experimental study was carried out on 150 villagers of Minoodasht, Iran, in 2019. The subjects were selected by stratified sampling in two control and intervention groups. Seventy-five people were assigned to each group. Data collection tools were the valid and reliable questionnaire based on the educational structures of the PRECEDE-PROCEED model and a demographic questionnaire. Data of the two groups were collected before and three months after the educational intervention. Data were analyzed using SPSS 19 software through T, Chi-square, and exact Fisher tests.
Findings There was no significant difference between the two groups in demographic variables and enabling factors before the intervention (p>0.05). In contrast, there was a significant difference between the two groups in the enabling factors and preventive behaviors of brucellosis three months after the educational intervention (p<0.05).
Conclusions The educational intervention based on the educational diagnosis phase of the PRECEDE-PROCEED model effectively promotes brucellosis prevention behaviors in the villagers
The Effect of an Educational Intervention Based on the Theory of Protection Motivation on the Promotion of Safe Traffic Behaviors in Adolescents
No full textAbstract
Introduction: Traffic accidents are one of the biggest public health challenges. Considering the role of
safe behaviors in reducing traffic accidents, the present study was conducted to determine the effect
of educational intervention based on protection motivation theory on promoting safe traffic behaviors
in male students.
Methods: In this study, male students were randomly divided into two control group (n=70) and an
intervention group (n=70). After confirming the validity and reliability, a researcher-made questionnaire
consisting of 63 questions based on the theory of protection motivation was distributed among the
students. The students in the intervention group received training for 90 minutes for four weeks. The data
were collected in the form of self-report immediately and six months after the intervention and analyzed
by the statistical tests of correlation, Chi-square, multiple regression, repeated measures ANOVA, and t
tests using SPSS version 19.
Results: The structures of protection motivation theory predicted 21% of the variance of safe behaviors.
Immediately after the educational intervention, except for the fear construct, the mean scores of other
theoretical constructs and students’ safe behaviors were significant between the two groups, but the
mean scores were not significant six months after the educational intervention except for perceived selfefficacy,
perceived response efficacy, protection motivation of other studied theoretical constructs, and safe
behaviors (P > 0.05).
Conclusion: Considering the influence of several components on the formation of safe traffic behavior, it
seems that to promote safe behaviors of students, in addition to designing theory-based training programs,
creating supportive infrastructures by policymakers and planners is essential for correct traffic behaviors
A Study on the Status, Citation Analysis, and Altmetric Indices of Journals of Golestan University of Medical Sciences
No full textBackground: Journals are regarded as the most important media for transferring knowledge and research results, accordingly their promotion is conditioned by continuous evaluation and improvement of performance. The present study aimed to determine the status, citation analysis, and altmetric indices of journals published by Golestan University of Medical Sciences.
Methods: This cross-sectional study was conducted by a descriptive approach with scientometric and citation analysis methods in 2019. The statistical population consisted of 5 journals of Golestan University of Medical Sciences. Data collection tool was a researcher-made checklist consisting of 28. Altmetric indices of journals were also evaluated. Data was analyzed by descriptive statistics; and the results were presented in diagrams and tables.
Results: All the studied journals had all "publication requirements. Only one journal had the requirement, "at least half of editorial board should be outside of the publication". Moreover, 37 percent of 105 editorial board members in the under examined journals had extra-organizational affiliation and only 8 percent were from abroad. The articles of "Journal of Gorgan University of Medical Sciences” was the most-cited article regarding citation bases.
Conclusions: Journals of Golestan University of Medical Sciences need to revise their structures, especially for editorial board members namely being international, having an organizational affiliation outside the university, as well as the presence of editorial board members with further research activity and background
The Benefits of Being Economics Professor A (and not Z)
No full textAlphabetic name ordering on multi-authored academic papers, which is the convention in the economics discipline and various other disciplines, is to the advantage of people whose last name initials are placed early in the alphabet. As it turns out, Professor A, who has been a first author more often than Professor Z, will have published more articles and experienced afaster growth rate over the course of her career as a result of reputation and visibility. Moreover, authors know that name ordering matters and indeed take ordering seriously: Several characteristics of an author group composition determine the decision to deviate from the default alphabetic name order to a significant extent.performance measurement, incentives, economists, name ordering
Final word on Jersey Dutch
No full textIn this article, William Z. Shetter compares and contrasts the dialects that developed between different Dutch colonies in the New World. He explores in-depth the nuances of Jersey Dutch, and provides theories to explain how Dutch and colonial languages blended. The article is reprinted from American Speech, December 1958, Volum XXXIII, No. 4
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Statistics of the subgrid scales after the shock-turbulence interaction
No full textThe interaction of a normal shock with isotropic turbulence (IT) represents a basic problem for studying some of the phenomena associated with high speed flows, such as hypersonic flight, supersonic combustion and Inertial Confinement Fusion (ICF). In general, in practical applications, the shock width is much smaller than the turbulence scales and the upstream turbulent Mach number is modest. In this case, recent high resolution shock-resolved Direct Numerical Simulations (DNS) (Ryu and Livescu, J. Fluid Mech., 756, R1, 2014) show that the interaction can be described by the Linear Interaction Approximation (LIA). By using LIA to alleviate the need to solve the shock, DNS post-shock data can be generated at much higher Reynolds numbers than previously possible. Here, such results with Taylor Reynolds number around are used to investigate the properties of the subgrid scales (SGS). In particular, it is shown that the shock interaction decreases the asymmetry of the SGS dissipation PDF as the shock Mach number increases, with a significant enhancement in size of the regions and magnitude of backscatter
Transition to turbulence in a qblique shock-wave/boundary-layer interaction at M=15
No full textDirect numerical simulations are carried out for different forcing techniques to trigger transition during the interaction between an oblique shock-wave and a laminar boundary-layer at M = 1.5. Three forcing methods are used: a) forcing of oblique unstable modes, whose shape and behaviour are determined by the local linear stability theory, b) broadband free-stream acoustic disturbances, and c) a cold plasma flow control device. While the oblique-mode breakdown is dominant for low-amplitude forcing, long streaky structures drive the transition process in a high-amplitude disturbance environment. LES are also performed on the experimental setup by the Institute of Theoretical and Applied Mechanics (ITAM) from Novosibirsk State University with cold plasma actuation. As well as the disturbance type, the effect of Reynolds number and forcing amplitude will be investigated
Triangular Constellations in Flows
No full textParticles advected on the surface of a fluid can exhibit fractal clustering. The local structure of a fractal set is described by its dimension , which is the exponent of a power-law relating the mass in a ball to its radius : . It is desirable to characterise the {\em shapes} of constellations of points sampling a fractal measure, as well as their masses. The simplest example is the distribution of shapes of triangles formed by triplets of points, which we investigate for fractals generated by chaotic dynamical systems. The most significant parameter describing the triangle shape is the ratio of its area to the radius of gyration squared. We show that the probability density of has a phase transition: is independent of and approximately uniform below a critical flow compressibility , which we estimate. For the distribution appears to be described by two power laws: when , and when
Preferential concentration of particles in compressible turbulence
No full textThe behavior of particles in compressible turbulence has been seldom investigated to date despite its importance in many natural and industrial flows. Direct numerical simulations of particle-laden compressible isotropic turbulence are performed to study the preferential concentration of particles and the underling mechanisms. It turns out that heavy particles tend to concentrate in regions of low enstrophy and high fluid density (i.e, strain regions between vortex rings), especially the particles of Kolmogorov scale, which show the largest number density. Due to the compressibility, fluid particles do not distribute uniformly as in incompressible case, but show a tendency to bunch up in high density zones. The preliminary result might give some insights into compressible turbulent transport, dispersion and mixing as well as the subgrid-scale modeling for large-eddy simulation of particle-laden compressible flows
- …
