The duration of the daily nursing episode was studied in five rabbits from Day 3 to Day 22 postpartum. Over the first 5 days there was a decrease in the mean duration from 225 sec. to 150 sec. Over the next 10 days it remained steady at about 150 sec. Second, five does were subjected to treatments which were intended to reduce suckling stimulation. Such treatments increased the duration of nurs...

There are infrequent instances when cardiac beats with the electrocardiographic characteristics of the pre-excitation type appear occasionally in an otherwise normal tracing (Sanghvi and Misra, 1958). A recent observation helped us to clarify the problem of diagnosis and interpretation, and we present the following case history because of its practical and theoretical interest. B. T., a 48-year...

Two great underthrusting earthquakes that occurred along the coast of Peru in 2001 and 2007 involve spatiotemporal slip distributions that differ from the predominantly unilateral or bilateral rupture expansion of many great events. Commonly used finite-source rupture model parameterizations, with specified rupture velocity and/or short duration of slip at each grid point applied to the seismic...

background and purpose: this study was designed to investigate of simulation based education in achieves skills proficiency in medical radiation technologist students. methods: the students randomly were divided in two groups, a (n=25) and b (n=22) that received a routine course and simulation based education respectively. the chain of experiments was concerned to evaluate of skills proficiency...

The seismic moment and source orientation of the 8 November 1980 Eureka, California, earthquake (Ms = 7.2) are determined using long-period surface and body wave data obtained from the SRO, ASRO, and IDA networks. The favorable azimuthal distr ibution of the recording stations allows a well-constrained mechanism to be determined by a simultaneous moment tensor inversion of the Love and Rayleigh...

in this study, analysis is presented in two steps. in the first step, the theoretical s-wave displacement spectra, conditioned by frequency-independent q, was fitted with the observed displacement spectra. therefore corner frequency, moment magnitude and frequency-independent q for each record were estimated simultaneously and the estimate of error is given in the root-mean-square sense over al...

The lung is a common site for metastatic foci from extrapulmonary malignancies. Abrams’ found the lung involved, metastatically, in 46.5 per cent of 1,000 autopsied cases of carcinoma. On the basis of radiographic evaluation, Pendergrass’ estimated the incidence of pulmonary metastases from all carcinomas to be 30 per cent and as high as 75 per cent from renal cancer. In general, the secondary ...

Adult male albino rats of three strains--Wistar, Sprague-Dawley and Holtzman--were trained to press a lever to avoid electric shocks under Sidman-type (R-S interval-20 sec; S-S interval=5 sec) and discriminated avoidance (ITI-15 sec; warning duration=5 sec) schedules, and the acquisition processes of avoidance responses, and the properties of behavioral baselines were investigated. Under both s...

The aim of the present study was to investigate whether a gradually increasing reperfusion algorithm, in which the brief reperfusion was lengthened as the duration of each reperfusion/reocclusion cycle remained fixed, enhances cardioprotection. Rats were randomized into 5 groups: the sham, reperfusion injury (R/I), gradually decreased reperfusion (GDR; 30/10‑25/15‑15/25‑10/30 sec of reperfusion...