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Non-poisson distribution of sperm from grandfathers in zona-free hamster ova
Penetrating sperm age Poisson distribution human
2009/2/7
Earlier reports indicated that sperm from 25% of patients from infertile couples, but not from normal or fertile donors, show deviations from the theoretical Poisson distribution of the number of sp...
Force distribution comparisons of various retraction archwires
Maxillary retraction Space closure Crown tip Root torque Photoelastic analysis
2009/1/23
A photoelastic study comparing the effects of the activations of three retraction arch wires used in orthodontic therapy. Schematic representations of space consolidations, intrusion and root torque a...
Does a secular trend exist in the distribution of occlusal patterns?
Secular trend Occlusion Angle classification
2009/1/7
The existence of a secular trend in the distribution of occlusal patterns was studied in two generations of children. Study models and demographic data of a sample of 265 children from the previou...
The distribution of clefts of the primary and secondary palates by sex, type, and location
Cleft lip Cleft palate frequency Primary palate Secondary palate Sidedness
2009/1/7
The frequency and patterns of distribution of cleft lip, cleft lip and alveolus, cleft lip and palate, and isolated cleft palate, together with the possible association between sex, type of cleft,...
Displacement and stress distribution in the temporomandibular joint during clenching
Stress analysis Temporomandibular joint Clenching Finite element analysis
2009/1/7
The aim of this study was to analyze biomechanical reactions in the mandible and TMJ during clenching under various restraint conditions. A three-dimensional finite element model of the mandible, ...
A Finite Element Model of Apical Force Distribution From Orthodontic Tooth Movement
Stress analysis Loading Orthodontic forces
2008/12/26
This study was undertaken to determine the types of orthodontic forces that cause high stress at the root apex. A 3-dimensional finite element model of a maxillary central incisor, its periodontal l...
Stress Distribution Produced by the Correction of the Mandibular Second Molar in Lingual Crossbite
Stress distribution Photoelastic analysis Lingual crossbite Ectopic eruption
2008/12/26
The purpose of this study was to evaluate the stress distribution produced in the dentoalveolar system by a mandibular posterior crossbite appliance used for the correction of mandibular second mo...
Stress Distribution Produced by Correction of the Maxillary Second Molar in Buccal Crossbite
Stress distribution Photoelastic analysis Buccal crossbite Ectopic eruption
2008/12/26
The purpose of this study was to evaluate the stress distribution produced in the dentoalveolar system by a maxillary posterior crossbite appliance used for the correction of maxillary second molars...
Separation of ram spermatozoa bearing X and Y chromosome by centrifugal countercurrent distribution in an aqueous two-phase system
ram spermatozoa X and Y chromosome centrifugal countercurrent aqueous two-phase system
2008/12/25
The availability of reliable quantification techniques of X and Y chromosome-bearing spermatozoa in a given insemination dose would allow further approaches to their separation, which is a topic o...
Dynamic subcellular distribution of the DAZL protein is confined to primate male germ cells
Dynamic subcellular distribution DAZL protein primate male germ cells
2008/12/25
We have examined the location of the DAZL protein in fetal and adult rodents and human specimens and found that there is a shift from a predominantly nuclear to a predominantly cytoplasmic distribut...
Characterizing the Glycocalyx of Poultry Spermatozoa：I. Identification and Distribution of Carbohydrate Residues Using Flow Cytometry and Epifluorescence Microscopy
Turkey chicken semen glycoconjugate lectin
2008/12/24
The aim of the present work was to use a battery of lectins to 1) delineate the carbohydrate content of sperm glycocalyx in the turkey and chicken using flow cytometry analysis, and 2) evaluate the ...
Follicle-Stimulating Hormone Receptor Gene Haplotype Distribution in Normozoospermic and Azoospermic Men
Male infertility polymorphism SNP testis azoospermia
2008/12/23
The human follicle-stimulating hormone (FSH) receptor (FSHR) gene possesses single nucleotide polymorphisms (SNP) in exon 10, which influence serum FSH levels in women, but not in men. In the presen...
Particle Distribution in Low-Volume Capillary-Loaded Chambers
Spermatozoa concentration capillary slide hemacytometer Poiseuille Segre-Silberberg
2008/12/23
Accurate determination of sperm concentration in fluid suspension is a critical component in a semen analysis. Inaccurate estimations can lead to misinterpretation of the spermiogram and, in the c...
Study of Stress Distribution and Displacement of Various Craniofacial Structures Following Application of Transverse Orthopedic Forces—A Three-dimensional FEM Study
Rapid maxillary expansion (RME) Finite element model (FEM) Stress distribution Displacement Maxilla
2008/12/17
The purpose of this study was to analyze the stress distribution patterns within the craniofacial complex during rapid maxillary expansion. Therefore, a finite element model of a young human skull...
Remodeling of Airway Walls in Fatal Asthmatics Decreases Lymphatic Distribution; Beyond Thickening of Airway Smooth Muscle Layers
airway-remodeling bronchial asthma lymphangiogenesis lymphatic capillary mucosal edema
2010/11/17
These results indicate that distribution of lymphatics were decreased in the airway walls of fatal asthmatics which contained muscle bundles and fibro-connective tissues both of which were augmented i...