Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Robert B. Fischer"'
Publikováno v:
Orthopedics. 26:501-503
This study assessed patient experiences with interscalene block anesthesia for elective shoulder surgery. Routine use of interscalene anesthesia was introduced at our institution in 1997. All patients who underwent interscalene anesthesia during the
Autor:
Robert B. Fischer, James McQuiston
Publikováno v:
Animal Behaviour. 42:949-954
The ability of the vaginal secretions of hamsters to facilitate spacing among conspecific females was examined in three experiments. In the first study, vaginal substances were applied to one half of a testing arena. Naive females placed into this ap
Autor:
Robert B. Fischer, Debra A. Salais
Publikováno v:
Journal of homosexuality. 28(1-2)
Several hypotheses have been offered to explain homosexuality. This study tests the prediction of the sociobiological model that male homosexuals should be more altruistic then heterosexuals. Subjects were dichotomized into homosexual (N=76) and hete
Autor:
Robert B. Fischer, Patricia S. Brown
Publikováno v:
Physiologybehavior. 54(2)
Although sexually receptive female hamsters prefer dominant males as mating partners, it is not clear what role the female might play facilitating aggressive interactions among males that would lead to the establishment of a status relationship. The
Publikováno v:
Behavioral Biology. 23:249-253
The activity and sleep of six male and six female wild trapped eastern chipmunks, Tamias striatus , were observed in small simple cages and larger more complex aquaria. The animals were observed for 24 consecutive hr, and their behavior was categoriz
Publikováno v:
Physiology & Behavior. 39:73-76
It is commonly assumed that sexually dimorphic cutaneous glands are important in supporting inter-male aggression in rodents. Such an intimidation role has been hypothesized as the function of the hamsters' flank gland. Two experiments failed to find
Autor:
Robert B. Fischer
Publikováno v:
Behavioural Processes. 9:293-296
Data concerning group interactions subsequent to introductions of novel or familiar animals comes primarily from studies of a few cercopithecine species. This investigation attempted to supplement these data with descriptive observationd of gorillas
Publikováno v:
Psychological Reports. 52:779-783
Two white Carneaux pigeons were trained to peck for mixed grain according to a multiple fixed-ratio 50, variable-interval 30-sec schedule of reinforcement. After the rate of responding stabilized, the pigeons were given weekly doses of diphenylhydant
Autor:
Robert B. Fischer, Ronald D. Nadler
Publikováno v:
Primates. 19:657-664
Over a period of seven months four wild born adult female lowland gorillas were observed under semi-natural captive conditions. Thirty instances of contact interactions were recorded during 80 hours of observation. These interactions were segregated
Publikováno v:
Hormones and Behavior. 22:143-149
This study evaluated the importance of dominance status on mate selection in Syrian hamsters. In one experiment, sexually receptive females were allowed to choose between tethered males which differed in status. The choice was consistently in favor o