3.8 Heavy Drinkers/Alcoholic Use Disorders (AUD)

These two are different concepts.

(Monnig 2015) To be diagnosed as AUD, participants must complete the Alcohol Use Disorders Identification Test (AUDIT), the Alcohol Dependence Scale (ADS), and the Impaired Control Scale (ICS), as well as demographic and drinking history questionaires.White matter damage is a hallmark injury of alcohol use disorders (AUD).

(Dawson 2011): Definition for heavy drinking: no less than 4 drinks for women, no less than 5 drinks for men for one time (episode).'

(Mar.17) Dieter: according to DSM-IV, alcohol abuse and alcohol dependence are two distinct conditions. AUD encompasses both.

2.25 Do some review and prepare for the interview

Today I did a little review of Nishimura's Principles of Magnetic Resonance Imaging, page 30 and 31. To excite a certain slice, Gz must be turned on, applying a soft RF containing that frequency. Then what about hard RF? It will excite everything because it contains all the frequencies. I looked back into the textbook because I was reading on Dr. Changho Choi's research in MRS analysis on brain tumor. In his research, Dr. Choi constantly optimizing the PRESS (point-resolved spectroscopy). So I also looked into Dr.Xiaojuan Li's lecture notes on that and find the PRESS profile. I wonder the difference between an RA pulse and sinc function. RF pulse are truncated sinc function.
I briefly read Changho's 3 articles and came up with a summary table.

2.22 Back to Office

Dieter asked if I gained 20 more pounds. The first step is to reset my password and get logged in to my workstation.

Have been traveling too long and need to go back to work and refresh my memory on everything I did.

12.13 Too complicated

God I made these too complicated. I should have talked with someone else to make it simpler, and it obviously can.

Accept the fact that I am not perfect, and I need others' help and advice.

【HKBU CIE Internship Programme】Students of Life Science in HKBU Cell Bio...

Such a good experience.

12.2 Your Brain on Drugs: Imaging of Drug-related Changes in the Central Nervous System

Your Brain on Drugs: Imaging of Drug-related Changes in the Central Nervous System
This is a review article. They cited a 2003 article about cocaine-dependent alcoholics having shrinked white matter more than alcoholics without any commorbid substance use. Why the findings can be contradictory?

Chemical structure of cocaethylene:

This is a hard argument, but volumetric loss may not correlate with FA decrease.

12.1 Barplot in R base plotting

Still having trouble playing ggplot2.

These two websites are helpful for me to get started with barplot:

• http://monkeysuncle.stanford.edu/?p=485
• http://stackoverflow.com/questions/13932708/how-do-i-control-space-between-bars