نتایج جستجو برای: separations
تعداد نتایج: 7786 فیلتر نتایج به سال:
Extended maternal separations before age 5 were evaluated as a predictor of long-term risk for offspring borderline personality disorder (BPD) symptoms in longitudinal data from a large random community sample. Early separations from mother predicted elevations in BPD symptoms assessed repeatedly from early adolescence to middle adulthood. Early separations also predicted a slower than normal r...
We investigate the lowest energy configurations for string antistring pairs at fixed separations by numerically minimizing the energy. We show that for separations smaller than a critical value, a region of false vacuum develops in the middle due to large gradient energy density. Consequently, well defined string antistring pairs do not exist for such separations. We present an example of vorte...
1 SUMMARY As part of a study of almost-everywhere complex sets, we i n vestigate sets that are immune to AC 0 ; that is, sets with no innnite subset in AC 0. W e show that such sets exist in P PP and in DSPACElog n log n. Our main result is an oracle construction indicating that any improvement in these immunity results will represent a signiicant advance, in that we show that any answer to the...
Results in recursion-theoretic inductive inference have been criticized as depending on unrealistic self-referential examples. Barzdin proposed a way of ruling out such examples, and conjectured that one of the earliest results of inductive inference theory would fall if his method were used We refute Barzdin’s conjecture. We propose a new line of research examining robust separations; these ar...
This work presents an inertial microfluidic band-pass filter, enabling continuous separation of three sizes of particles or cells with <3μm difference in diameter. The design uses inertial forces to focus particles into two bands along side walls. Two chambers with side outlets are cascaded in series to generate microvortices for continuous band-pass separations. Particles with diameters 23μm, ...
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Performance of three-dot bisection was determined as a function of orientation for a variety of feature separations and field meridians at eccentricities of 0-10 deg for two observers. The dot stimuli and separations were scaled in size to compensate for eccentricity. The precision of three-dot bisection was found to depend on the direction of test-feature offset. In the fovea, horizontal and v...
Aims. The purpose of this work is to investigate the characteristics of a new frequency separation of stellar p-modes. Methods. Frequency separations are deduced from the asymptotic formula of stellar p-modes. Then, using the theoretical adiabatic frequencies of stellar model, we compute the frequency separations. Results. A new separation σl−1l+1(n), which is similar to the scaled small separa...
W" begin with three observations: . Methods for separating chemicals, materials, and objects are a crit ical part of chemical technology' . Magnetic interactions can achieve separations that are impossible or impractical to achieve l ' ,) ' other techniques. . Magnet ic separat ions are inf reqtrent ly used in chemistry. How is it that chemistry, which has cheerfully exploited separations based...
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