Dedicated to Fred Rapp

SP RAPP 2005_27_omslag.indd

A constitutive model based on plasticity theory with a non-associative flow rule has been developed. The model is formulated in terms of sleeper displacements and forces, and includes hardening and softening controlled by irreversible transversal (lateral and longitudinal) sleeper displacements. The model has been calibrated using results from lateral and longitudinal ballast resistance tests c...

This is dedicated to our former chairman Dr. Mahmoud Rohani

Rapp Hodgkin Syndrome

© 2017 Indian Dermatology Online Journal | Published by Wolters Kluwer Medknow Ectodermal dysplasias are a heterogeneous group of disorders resulting from abnormalities of structures derived from embryonic ectoderm (skin, teeth, and appendage). Rapp Hodgkin Syndrome (RHS) is a type of anhidrotic ectodermal dysplasia, which was described by Rapp and Hodgkin in 1968.[1] This syndrome is character...

Fred Chang

Fred grew up in California and studied biology and played the violin at Princeton as an undergraduate. He obtained an M.D. Ph.D. at UCSF, studying under the wise tutelage of the late Ira Herskowitz. As a graduate student, he played with budding yeast ‘shmoos’ and studied how yeast pheromones arrest the cell cycle. He then went to do postdoctoral stints with Paul Nurse in Oxford and London, and ...

Fred K

Machine Learning, Signal Processing, and Data Analyst Accomplished research scientist with over 5 year of academic experience as well as 4 years of industry experience developing and implementing algorithms for extracting and making sense of different type of data. My expertise goes beyond the usual machine learning topics to include:  logistic regression, Neural Networks, Support Vector Machi...