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Tamer Salama - Learning Journey
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Non-tech companies and the Data Science challenges

I recently came across ‘Can Data Scientists spell Sustainability?’ by Yogi Schulz The article portrays the opposing views held by data science and information system departments and how each side ...

Software Engineering for Professionals

I was invited by my friends at Untapped Energy to speak about Software Engineering. I’ve been lately seeing a lot of professionals (Engineers, Geologists, Accountants, Analysts, etc…) venturing in...

Blog revived

It has been a while since I added contents to the website. I started out this blog in 2004, back when blogging was the social media of the day. Inspired by professionals who I admired, I tried to ...

RubyMotion – PullToRefresh

To add Sam Vermette’s SVPullToRefresh to your RubyMotion project: Add the SVPullToRefresh pod Add the Quartz Framework # In your Rakefile Motion::Project::App.setup do |app| # ... app...

Using NUI with RubyMotion

NUI is an open-source library that allows you to style your iOS applications using CSS-like files and syntax. In my opinion, NUI carries few benefits over its commercial, KickStart backed, competit...

Consultancy Masterclass

Last weekend, I sat through the two-day Consultancy Masterlcass by Brennan Dunn & Obie Fernandez. Both Brennan and Obie have extensive experience building their own successful consultancy firms...

Thoughts on building vs growing

Many times I’ve heard professionals talk and plan out building software applications. Great ideas they’d like seen implemented, and how it could make things better. Though might not seem obvious – ...

Rails and inner query choices

Consider that we have two models; `` and `` . A Well represent an oil/gas/water well, each with multiple SurveyPoints. A SurveyPoint represent the well’s coordinate at a certain depth. class Well ...

JRuby – can’t convert Hash into String

I’ve recently upgraded a JRuby/Rails application from JRuby 1.6.3 (1.8 compatibility mode) to 1.6.8 (1.9 mode). Everything was working out fine except for actions relying on internal CSV library (F...

newrelic – undefined method `-’ for nil:NilClass

Using JRuby with trinidad (developer mode) – I was intermittently getting this error. Apparently thrown as estimated_time for the transaction was returning nil. I was also having all sorts of other...

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