the present research was performed in patom, namkhaneh, gorazbon, chelir and baharbon districts in kheyrud forest. due to existence of forest typology map and extension of study area, this study was confined to beech dominated forests. a stratified sampling method based on landform is used to locate 1000 m2 circular sample plots. the number of fagus orientalis lipsky trees ? 7.5 cm in dbh withi...

The present work aims to analyse jointly four contiguous watersheds in the eastern part of the Serra da Mantiqueira with respect to the distribution of fish fauna and physical structure. The watersheds of Piracuama river, Ribeirão Grande, Buenos and Guaratinguetá are located in Pindamonhangaba, Campos do Jordão and Guaratinguetá municipalities, in the state of São Paulo. Data were collected bet...

BACKGROUND AND OBJECTIVES This study investigated whether the slope of estimated GFR is different between nonproteinuric subjects with and without diabetes, and what clinical factors are associated with the GFR slope. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS An observational cohort study was performed in 923 subjects, and the predictive value of baseline variables on the GFR slope was in...

Isolated canine papillary muscle-false tendon tissue preparations stimulated at a cycle length of 630 msec were treated with ouabain (2.1 X ICHM) until an increase in the slope of diastolic depolarization of Purkinje fibers was produced. Then the effects of changes in cycle length on the slope were tested. Sustained shortening of the cycle length increased the slope, and sustained lengthening h...

Accommodation may indirectly influence visually guided eye growth by affecting the retinal defocus signal used to guide growth. Specifically, increased lags of accommodation associated with low stimulus-response (S-R) function slopes will impose increased hyperopic blur on the retina and may induce axial elongation and myopia. The purpose of this study was (1) to measure accommodation in awake,...

OBJECTIVE To investigate the relation between QT and RR intervals in the sick sinus syndrome or high degree atrioventricular block. PATIENTS 32 patients with episodes of prolonged RR intervals (> or = 2.6 s) on Holter electrocardiographic recordings. DESIGN QT and RR intervals were measured manually every 100 to 150 beats on electrocardiographic strips reprinted from the Holter tape over 24...

This paper presents the results of a number of computations using the 2D FEM to show the effects of significant variables on the behavior of geosynthetically reinforced earth slopes. The verification and reliability of the results are primarily examined through comparisons with experimental data available. The results seem to be quite acceptable and can be used with a high degree of reliability...

Emmert's law and the size-distance invariance hypothesis have been said to be formally equivalent, provided that Emmert's law means that the perceived size of an afterimage is proportional to the perceived distance of the projected surface of the afterimage. However, there have been very few studies that have attempted to verify this formal equivalence empirically. We measured both the perceive...