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UX, design and Computer Science blog

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Windows 10 Start Menu and Cortana Stop Working: How to fix

by DorivalJuly 1, 2016

I may not have good news for you, but this problem happens in different machines under different circumstances. The fix here may not solve your problem, but it’s totally harmless, so it deserves a try. Step 1 Hit WINDOWS+R key to … Continue reading

Exploring Arrays: Exercises and Interview Questions

by DorivalAugust 12, 2013

If you are not familiar with some advanced operations with arrays I have wrote an article covering some of the common structures and theory about arrays (or vectors). In this article, let’s face some common questions that use arrays to … Continue reading

Exploring Arrays: Introduction

by DorivalAugust 8, 2013

I am assuming that you are familiar with arrays/vectors, so what I gonna do here is explore some data structures that we use to deal with array problems. I will present here the famous string, the HashTable and the StringBuilder, … Continue reading

The “Big O” notation

by DorivalAugust 7, 2013

In Computer Science, the so called “Big O notation” is in short used to express the working space requirements and processing time of a given algorithm. If you want to explore a little bit about this subject, who is behind … Continue reading

Método de eliminação de Gauss para Sistemas Lineares

by DorivalJune 27, 2012

Gauss, ou Johann Carl Friedrich Gauss, foi um matemático que viveu entre 1777 e 1855 e concebeu muitas contribuições para a matemática, astronomia e física. Objetivo Uma das contribuições que Gauss nos deu, é uma técnica para simplificar a resolução … Continue reading

Alternative for Server.MapPath()

by DorivalMarch 30, 2012

What to do when HttpContext.Server is null and you can not access anything inside it? In addition to this problem, the MapPath function throws an error: System.Web.HttpException (0x80004005): Request is not available in this context. Your problematic code might looks … Continue reading

The Unboxing Experience

by DorivalDecember 3, 2011

We know the term User Experience (UX) is very attached to the Web, actually, the term exploded because of that, I dare to say. But UX is explorable everywhere, and should be considered on every commodity. I posted an article … Continue reading

A Mug, self explaining

The User Experience and the Mug

by DorivalSeptember 26, 2011

This a UX Tale, set on a humble IT Office, explaining with some deviations why a mug can communicate like any other thing Continue reading

A Summary about Usability

by DorivalSeptember 26, 2011

Usability has a lot to say, but I will give a brief history about the principles of this trending topic, today very recognized and well accepted in the industry. Continue reading

Qual o perfil de um Game Designer?

by DorivalMarch 31, 2009

Há muito gosto desse universo de games, e um Game Designer é uma profissão que muitos consideram “Divertida” mas toda profissão tem seu ócio e essa não vai ser uma excessão, mas mesmo assim acredito ser uma profissão que valha … Continue reading

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