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- C Wang, Karen S L Lam, Joann Tully MA, T-L Chan, Mingyuan Liu, Ralph T T Yeung
- Clinical endocrinology
- 1987

Fifty-one patients with hyperprolactinaemia (23 with macroadenoma, 23 with microadenoma, and five with idiopathic hyperprolactinaemia) were treated with bromocriptine for 2-12 years (4.9 +/- 2.9 years, mean +/- SD). During therapy, the serum PRL levels were suppressed into the normal range in all but five patients. In these five patients, despite the high… (More)

- T-L Chan, Murilo L. Tiago, Efthimios Kaxiras, James R. Chelikowsky
- Nano letters
- 2008

We studied the electronic properties of phosphorus-doped silicon nanocrystals using the real-space first-principles pseudopotential method. We simulated nanocrystals with a diameter of up to 6 nm and made a direct comparison with experimental measurement for the first time for these systems. Our calculated size dependence of hyperfine splitting was in… (More)

- T-L Chan, C. Z. Wang, Kai-Ming Ho, James R. Chelikowsky
- Physical review letters
- 2009

We propose an efficient scheme to simulate noncontact atomic force microscopy images by using first-principles self-consistent potential from the sample as input without explicit modeling of the atomic force microscopy tip. Our method is applied to various types of semiconductor surfaces including Si(111)-(7x7), TiO2(110)-(1x1),… (More)

- T-L Chan, C. Z. Wang, Myron Hupalo, Michael C. Tringides, Kai-Ming Ho
- Physical review letters
- 2006

An intriguing growth morphology of Pb islands on a Si(111) surface is observed in our STM experiments: the growth of a Pb layer on Pb islands with unstable heights starts from the periphery and moves towards the center, while the nucleation of the next layer on stable Pb islands starts away from the periphery. Using first-principles total energy… (More)

- James R. Chelikowsky, Alexey T. Zayak, T-L Chan, Murilo L. Tiago, Yunkai Zhou, Yousef Saad
- Journal of physics. Condensed matter : an…
- 2009

Solving the electronic structure problem for nanoscale systems remains a computationally challenging problem. The numerous degrees of freedom, both electronic and nuclear, make the problem impossible to solve without some effective approximations. Here we illustrate some advances in algorithm developments to solve the Kohn-Sham eigenvalue problem, i.e. we… (More)

A classical additive basis question is Waring’s problem. It has been extended to integer polynomial and non-integer power sequences. In this paper, we will consider a wider class of functions, namely functions from a Hardy field, and show that they are asymptotic bases.

- Jiaxin Han, Murilo L. Tiago, T-L Chan, James R. Chelikowsky
- The Journal of chemical physics
- 2008

We present a real space pseudopotential method for calculating the electronic structure of one-dimensional periodic systems such as nanowires. As an application of this method, we examine H-passivated Si nanowires. The band structure and heat of formation of the Si nanowires are presented and compared to plane wave methods. Our method is able to offer the… (More)

1. I was a bit surprised to see you saying that this is the first time someone has causally linked RNA splicing to aging. I can think of at least a few previous studies that highlight the important role of RNA splicing in longevity assurance (e.g. splicing defects driving the progeroid syndrome HGP, splicing defects in age-related diseases such as cancer,… (More)

- Danny Shum, D. Houssameddine, +36 authors Samina Alam
- 2017

Perpendicular Spin-Transfer Torque (STT) MRAM is a promising technology in terms of read/write speed, low power consumption and non-volatility, but there has not been a demonstration of high density manufacturability at small geometries. In this paper we present an unprecedented demonstration of a robust STT-MRAM technology designed in a 2x nm CMOSembedded… (More)

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