Traveling backward
نویسنده
چکیده
class of neurons known as starburst amacrine cells compute the direction of a visual stimulus, according to new results from Thomas Euler, Peter Detwiler (University of Washington, Seattle, WA), and Winfried Denk (Max Planck Institute for Medical Research, Heidelberg, Germany). The experiments show that starburst dendrites signal independently of the electrical activity of the soma, an ability that dendrites of other A
منابع مشابه
Backward-Wave Cancellation in Distributed Traveling-Wave Photodetectors
This paper describes the design, fabrication, and measurement of backward-wave-cancelled distributed traveling-wave photodetectors. One of the fundamental issues in traveling-wave photodetectors is the generation of backward-waves, which reduces bandwidth or, in the case of matched input termination, reduces their radio-frequency (RF) efficiencies by up to 6 dB. We report a traveling-wave photo...
متن کاملTraveling Wave and Aggregation in a Flux-Limited Keller-Segel Model
Flux-limited Keller-Segel (FLKS) model has been recently derived from kinetic transport models for bacterial chemotaxis and shown to represent better the collective movement observed experimentally. Recently, associated to the kinetic model, a new instability formalism has been discovered related to stiff chemotactic response. This motivates our study of traveling wave and aggregation in popula...
متن کاملA Computational Study of Bi-directional Dynamic Programming for the Traveling Salesman Problem with Time Windows
This paper presents computational studies for the traveling salesman problem with time windows by applying a bi-directional resource-bounded label correcting algorithm. Label extensions and dominance start simultaneously in both forward and backward directions: the forward direction from the starting depot and the backward direction from the terminating depot. The resultant label extension proc...
متن کاملInteractions between the right ventricle and pulmonary vasculature in the fetus.
A midsystolic plateau differentiates the pattern of fetal pulmonary trunk blood flow from aortic flow. To determine whether this plateau arises from interactions between the left (LV) and right ventricle (RV) via the ductus arteriosus or from interactions between the RV and the lung vasculature, we measured blood flows and pressures in the pulmonary trunk and aorta of eight anesthetized (ketami...
متن کاملBreakdown of the Slowly Varying Amplitude Approximation: Generation of Backward Traveling Second Harmonic Light
By numerically solving the nonlinear field equations, we simulate second-harmonic generation by laser pulses within a nonlinear medium without making the usual slowly-varying-amplitude approximation, an approximation which may fail when laser pulses of moderate intensity or ultrashort duration are used to drive a nonlinear process. Under these conditions we show that a backward-traveling, secon...
متن کاملEvidence of a dominant backward-propagating "suction" wave responsible for diastolic coronary filling in humans, attenuated in left ventricular hypertrophy.
BACKGROUND Coronary blood flow peaks in diastole when aortic blood pressure has fallen. Current models fail to completely explain this phenomenon. We present a new approach-using wave intensity analysis-to explain this phenomenon in normal subjects and to evaluate the effects of left ventricular hypertrophy (LVH). METHOD AND RESULTS We measured simultaneous pressure and Doppler velocity with ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of Cell Biology
دوره 158 شماره
صفحات -
تاریخ انتشار 2002