نتایج جستجو برای: sex reversal
تعداد نتایج: 241473 فیلتر نتایج به سال:
Species-specific vocalizations can act as a reproductive isolating mechanism between closely related populations. We analyzed vocal differences 2 hybridizing species of sex-role reversed polyandrous shorebirds, the Northern Jacana (Jacana spinosa) and Wattled (J. jacana). found that calls have higher fundamental frequency peak than calls. also compared females males, both jacana are compete for...
Among vertebrates, teleost fish exhibit a considerably wide range of sex determination patterns that may be influenced by extrinsic parameters. However even for model fish species like the zebrafish Danio rerio the precise mechanisms involved in primary sex determination have not been studied extensively. The zebrafish, a gonochoristic species, is lacking discernible sex chromosomes and the sex...
The male Macrobrachium species (giant freshwater prawn) typically achieve better growth and a larger harvest size than females. Hence, it is clear that the monosex culture of all-male prawn populations would be inexpensively advantageous. This study aimed to determine whether androgenic gland (AG) ablation induces sex reversal giant dacqueti. AG was ablated through bilateral microsurgery (AG ab...
Species exhibiting sex-role reversal provide an unusual perspective on the evolution of sex roles and sex differences. However, the proximate effects of sex-role reversal are largely unknown. Endocrine disruptors provide an experimental mechanism to address hormonal regulation of sexually dimorphic gene expression in sex-role-reversed taxa. Here, we investigate gene expression patterns in the l...
Tic disorders, including childhood disorders is the most important in the absence of treatment and recovery can affect the life and future of children. The goal of this study was the Effectiveness of Habit Reversal Techniques Training in Reduction Intensity and Frequency Motor tics. So, 2 boys with motor tic were selected by available sampling from bozorgmehr clinic in Tabriz city. Each of the ...
Trichotillomania refferes compulsive hair pulling that results in considerable hair loss.Many medical and nonedical therapies have been applied for treatment of this disorder. The purpose of this study was to compare the efectiveness of Clomipramine, Hydroxyzine, and behavior therapy (habit reversal) in the treatment of trichottillomania. To achieve this 15 patients with trichotillomania were r...
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