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Inherent variability among measures of fertility of rats and its implications in the design of mating trials
Inherent variability rats mating trials
2009/2/17
Mating trials are used extensively to assess the effects of experimental treatments on the fertility of male or female subjects. Such trials are often insensitive because many measures of fertilit...
This paper describes the difficulties encountered in evaluating frozen sperm in both animal and human experiments, and discusses the principles of experimental design used to overcome them. Issues i...
On the design of looped orthodontic retainer wires
Retainer wire Labial bow Fatigue Wire temper Resilience Heat-treatment
2009/1/14
Removable Hawley orthodontic retainers have long been prescribed by clinicians following completion of active therapy. Only minor changes have occurred in the design of the retainer over the past ...
An analytical evaluation of a new spring design for segmented space closure
Geometric nonlinearities Segmental spring Translational unit Anchorage unit Applied force Effective force Limit of activation Activator
2009/1/12
Contemporary segmented-arch space-closure springs require activation techniques that have the side effect of producing a significant amount of geometric nonlinearity. This nonlinearity makes these s...
Specialized Spring Design in Segmented Edgewise Orthodontics：Further Verification of Dedicated Software
Spring design Dedicated software Experimental-analytical comparison
2008/12/29
A software program for use in the investigation of specialized springs used in the segmented arch technique has previously been developed and an example of its clinical application has been shown....
Design and Effectiveness of a Computer-Based Continuing Education Program for Orthodontists
Orthodontic continuing education Internet delivery
2008/12/26
The design of computer-based continuing education for health professionals is an important consideration for Internet delivery because the size of graphic files greatly affects the speed with whic...
An Improved Transpalatal Bar Design. Part II. Clinical Upper Molar Derotation—Case Report
Molar rotation Transpalatal bar
2008/12/19
Bilaterally rotated upper first molars (mesial in, distal out) were derotated in two different cases by using a custom-made transpalatal bar. The bars were reactivated, if necessary, at four-week co...
An Improved Transpalatal Bar Design. Part I. Comparison of Moments and Forces Delivered by Two Bar Designs for Symmetrical Molar Derotation
Zachrisson-type transpalatal bar Goshgarian-type transpalatal bar Symmetrical derotation of molars
2008/12/19
Moments and forces delivered during symmetrical derotation of upper molars by 10 Goshgarian-type (GTPB) and 10 Zachrisson-type transpalatal bars (ZTPB) were measured in laboratory experiments usin...
The Effect of Variation in Mesh-Base Design on the Shear Bond Strength of Orthodontic Brackets
Bracket base Mesh type Shear bond strength
2008/12/12
This study compared the shear bond strengths of two metallic orthodontic brackets, one with a single-mesh bracket base and the other with a double-mesh bracket base. The Transbond XT adhesive syst...
Frictional Evaluations of Dental Typodont Models Using Four Self-ligating Designs and a Conventional Design
Frictional resistance Self-ligating brackets Conventional brackets Typodont models Multiple brackets
2008/11/26
After a previous study using typodonts and three standardized archwire (AW) sizes, the frictional evaluations of four self-ligating brackets were directed toward the optimal AW-bracket system. Fou...
The design, development, and evaluation of a prototypic, prosthetic venous valve
a prototypic, prosthetic venous valve vivo models
2010/2/25
The results of this study show that this prototype vein valve design is capable of providing significant relief of reflux under realistic conditions without inducing any increase in antegrade flow res...
Principles-based Learning Design for an Online Postgraduate Psychiatric Pharmacy Course
psychiatry pharmacy postgraduate education online mental health
2018/5/7
Objectives. To implement an interactive, Web-based postgraduate course aimed at improving the knowledge, skills, and confidence of health care practitioners with interest in providing pharmaceutical c...
The Relevance of Prior Knowledge in Learning and Instructional Design
prior knowledge assessment instructional design pharmacy education
2018/5/7
Objectives. To determine how different types of prior knowledge (declarative and procedural) impact student achievement and how prior-knowledge assessment can be used as an instructional design tool.
...
Body fat measurement by bioelectrical impedance and air displacement plethysmography: a cross-validation study to design bioelectrical impedance equations in Mexican adults
bioelectrical impedance fat measurement
2008/4/23
The study of body composition in specific populations by techniques such as bio-impedance analysis (BIA) requires validation based on standard reference methods. The aim of this study was to develop a...
A large-scale field trial to evaluate the efficacy of bacillus larvicides for controlling malaria in western Kenya: Study design and methods
bacillus larvicides malaria western Kenya
2010/12/10
Since malaria vaccine development is slow and parasite resistance to anti-malarial drugs is developing rapidly, vector control is still the most practical method for reducing malaria transmission in d...