منابع مشابه
Heterosis resulting from degenerative changes.
ERITABLE variations in inbred strains of maize occur infrequently. All H the mutations BO far found either do not increase the amount of growth and productiveness or clearly reduce the plants in some degree (JONES 1924, 193a, 1944; SINGLETON 1943). Several changes have been noted recently and reported in a preliminary way (JONES 1944) which reduce the vigor of the inbred plants but which increa...
متن کاملThe etiology of transient endothelial changes in the human cornea.
To investigate the etiology of contact lens-induced transient endothelial changes (blebs) in the human cornea, the effects of five different stimuli on corneal thickness and the appearance of the corneal endothelium were assessed. The stimuli included: (1) a silicone contact lens; (2) a silicone contact lens in combination with anoxia; (3) anoxia alone; (4) a thick hydroxyethyl methacrylate (HE...
متن کاملExercise-induced changes in degenerative mitral regurgitation.
OBJECTIVES We sought to quantify exercise-induced changes in patients with degenerative mitral regurgitation (MR), to examine the relationship between exercise-induced changes in MR and in systolic pulmonary artery pressure (PAP), and to identify their potential impact on symptom-free survival. BACKGROUND MR severity can change during exercise in patients with functional MR. Quantified change...
متن کامل[Fundus changes evaluation in degenerative myopia].
PURPOSE To evaluate the presence of fundus changes in degenerative myopia. METHODS Forty patients with refractive error of at least -6.00 diopters were selected for ophthalmologic examination followed by posterior pole photograph and echobiometry. RESULTS We studied 57 eyes of 37 patients with refractive error ranging from -6.25 to -28.50 diopters, with mean -14.05, and axial length ranging...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1927
ISSN: 0035-9157
DOI: 10.1177/003591572702000968