city flows – a comparative visualization environment of urban bike mobility

Aug 21, 2016

cf. city flows is a comparative visualization environment of urban bike mobility designed to help citizens casually analyze three bike-sharing systems in the context of a public exhibition space.
More info at uclab.fh-potsdam.de/cf/
This is the non-interactive, lower-res rendering for a large media wall at FH Potsdam.
NYC Citywide View, at 0:00
NYC Station View, at 0:23
NYC Small Multiples, 0:37
Berlin Citywide View, at 1:47
Berlin Station View, at 2:03
Berlin Small Multiples, at 2:16
London Citywide View, at 2:37
London Station View, at 3:03
London Small Multiples, at 3:06
See vimeo.com/173760057 for our visualization in an exhibition setup.

cf. city flows – Screencast from Till Nagel on Vimeo.

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The World’s Areas Most Affected by Large Flood Events

Aug 19, 2016

One of the most destructive threats out there is flooding and the most at risk are major cities along the coast as well as inland. As we’ve seen with the latest Louisiana flooding this month. Record-setting rainfall and flooding in southern Louisiana have been calculated at NASA with data from satellites. The rains were so heavy that one meteorologist referred to the event as a “rain bomb” on Twitter. An extremely severe rainfall event hit the states of Louisiana and southern Mississippi when a very slow moving low pressure system continuously pulled tropical moisture from the Gulf of Mexico.

This disaster is being called the worst natural disaster since Hurricane Sandy, it might make sense to be informed by knowing where the most flood risks are so I am posting about some tools that might be of benefit to others.

NASA has recently analyzed the Louisana flooding

NOAA’s Sea Level Rise Viewer is a web mapping tool to visualize community-level impacts from coastal flooding or sea level rise (up to 6 feet above average high tides). Photo simulations of how future flooding might impact local landmarks are also provided, as well as data related to water depth, connectivity, flood frequency, socio-economic vulnerability, wetland loss and migration, and mapping confidence.

NOAA Sea Level Rise Viewer

Anyone interested in volunteering for this effort should go to VolunteerLouisiana.gov.

The costliest US floods (credit CNN) :

Hurricane Katrina in 2005: $16.3 billion

Superstorm Sandy in 2012: $8.3 billion

Hurricane Ike in 2008: $2.7 billion

Hurricane Ivan in 2004: $1.6 billion

Hurricane Irene in 2011: $1.3 billion

Source: Federal Emergency Management Agency

The following maps from Caliper Maptitude maps help to illustrate the regions most at risk to flood threats.

World Map

Maptitude map of areas affected by flooding events 2001-2016

United States

Maptitude map of North America areas affected by flooding events 2001-2016

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Updating my blog

Aug 14, 2016

It’s been a while since I maintained my blog consistently. I’m going to be posting here more often especially on topics related to startups, engineering, AI, big data, data science and cybersecurity.

I look forward to providing more updates!

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New research sheds light on neuronal communication

Jan 4, 2016

neurosciencestuff:

New research sheds light on neuronal communication

Researchers at the Max Planck Florida Institute for Neuroscience
have uncovered a critical molecule that regulates synaptic transmission

Synaptic proteins and neuronal transmission

A synapse consists of a presynaptic terminal of one neuron and a
postsynaptic terminal of another. The presynaptic terminal stores
vesicles containing neurotransmitters, while the postsynaptic terminal
contains neurotransmitter receptors. A dense collection of proteins is
present in these terminals, however the functional role of many of these
proteins remains unknown.

In particular, the G-protein-coupled receptor kinase-interacting
proteins (GITs) exert a critical control in synaptic transmission, since
deletions of these proteins are lethal or cause sensory deficits and
cognitive impairments in mice. In particular, GIT proteins and the
pathways they regulate have been implicated in neurological disorders
such as Attention Deficit Hyperactivity Disorder (ADHD) and Huntington’s
Disease. Several studies have demonstrated the role of GITs in the
postsynaptic terminal, but very little is known about their role in the
presynaptic terminal. Researchers in Samuel Young Jr.’s research team at
the Max Planck Florida Institute for Neuroscience set out to
investigate the role of GITs in the giant synapse, the calyx of Held, of
the auditory system – the optimal model to study the presynaptic
terminal independently from the postsynaptic terminal.

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You Don’t Have To Be Mean To Be Lean

Jun 17, 2015

Lean Thinking is a business methodology which aims to provide a new way to think about how to organize human activities to deliver more benefits to society and value to individuals while eliminating waste.

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Startups Are A Risky Business

Jun 11, 2015

Risk is the potential of losing something of value. Values (such as physical health, social status, emotional well being or financial wealth) can be gained or lost when taking risk resulting from a given action, activity and/or inaction, foreseen or unforeseen. Risk can also be defined as the intentional interaction with uncertainty. Uncertainty is a potential, unpredictable, unmeasurable and uncontrollable outcome, risk is a consequence of action taken in spite of uncertainty.

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Startup Weekend

Jun 10, 2015

Startup Weekend is a global challenge that takes place in cities all over the world – where entrepreneurs come together and turn an idea into reality within 54 hours.

This documentary short film follows the journey of two competing teams in Startup Weekend Toronto and explores what it means to start your own business.

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Living a Full Life

Jun 10, 2015

Life is a characteristic distinguishing physical entities having biological processes (such as signaling and self-sustaining processes) from those that do not, either because such functions have ceased (death), or because they lack such functions and are classified as inanimate.

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How I’ve Become A Better Founder By Practicing Patience

May 28, 2015

Patience (or forbearing) is the state of endurance under difficult circumstances, which can mean persevering in the face of delay or provocation without acting on negative annoyance/anger; or exhibiting forbearance when under strain, especially when faced with longer-term difficulties.

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