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[FoRK] Programming languages, operating systems, despair and anger

by karlcow & 1 other

And so for 20 years now these folks --- *the* shining lights, in many ways, of "practical" programming language, operating systems, and general systems research --- have continued to fail to "get" the fundamental practical needs of everyday programmers working in The Real World.

12 November 2009

Geek to Live: Mirror files across systems with rsync - Backup utilities - Lifehacker

by ghis
You use more computers and operating systems to get your work done today than ever before. But how do you keep your files synchronized between them? Plenty of OS-specific tools can mirror folders, but you need something cross-platform and highly customizable. You need the 10-year-old command line file mirroring utility called rsync.

The Go Programming Language

by srcmax & 2 others

a systems programming language

expressive, concurrent, garbage-collected

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11 November 2009

VoiceCenter DVX-2000MS SMB VoIP Phone Systems

by danijelzi (via)
The D-Link VoiceCenter DVX-2000MS is a VoIP phone system designed for small to medium-sized businesses. It is based on Microsoft Response Point phone system software and supports up to 50 users.

The Go Programming Language

by karlcow & 2 others

a systems programming language

expressive, concurrent, garbage-collected

10 November 2009

08 November 2009

AdulauWikiDiary: 2009-09-13 Machine Tag Taxonomy and Binomial Nomenclature

by karlcow

I have gathered some notes on my use of machine tag for biology taxonomy. So you can express easily the classification on web services using tagging (like flickr or del.icio.us) a machine tag that can be read by human and by machine (read information automated systems) :

04 November 2009

RemoteOperations 3D Software Helps H1N1-Affected Businesses

by danijelzi (via)
Forterra Systems today announced the availability of RemoteOperations 3D Internet collaboration solution, helping organizations to continue normal operations in the event they are directly affected by the H1N1 flu outbreak.

01 November 2009

Sibe 2009

by karlcow

Infrastructure provides the basic needs for society, and sustainable infrastructure systems are essential for the survival, health and well-being of a society. For developing countries, the civil and environmental engineer are at the epicenter in seeking means to enhance human life through modernization of infrastructure as evidenced by provision of shelter, water, and transport, amongst others.

The current rate of urbanization and industrialization has caused a rise in environmental issues, involving environmental mismanagement which has been associated with unforeseen global catastrophes. The problems are further aggravated with environmental degradation such as soil erosion, depletion of water resources, etc.

In order to meet these multifaceted challenges, proper planning, implementation and verification exercises are required, via an integrated, multidisciplinary and holistic approach. The global momentum for sustainable development must now lead to practical applications of the engineering and science of sustainability.

MD5SUM (Matéria)

by tadeufilippini (via)
Matérias / Matéria MD5SUM Como verificar a integridade de arquivos puxados da Internet Por Fábio Melatti em 21/Out/2003 O MD5SUM é um programa de domínio público usado para verificar mensagens criptografadas e integridade de arquivos. Portanto quando as ISOs são feitas é usado o MD5SUM para que você possa ter certeza que a ISO que foi baixada é exatamente igual a que está no servidor. Por ser uma ferramenta de 128-bit te dá uma excelente garantia de que o seu arquivo está exatamente igual ao original, a menos que os md5sums sejam diferentes ;-), pois qualquer alteração em meio bit do arquivo resultará em um conjunto de caracteres totalmente diferentes. Quando o MD5SUM é rodado sobre um arquivo é gerado um conjunto de 32 caracteres, semelhante a esse: dddb5786219f57fef20b0ae3616afc67 isoqualquer.1.3-5.iso Pronto, agora que sabemos o que é e para que serve, vamos para a parte prática. As distribuições Linux por padrão já incluem o programa MD5SUM, por isso não há muito trabalho, basta abrir qualquer terminal e digitar: md5sum isoqualquer.1.3.iso E depois de algum tempo, afinal de contas estamos verificando arquivos de 650 MB em média, ele retornará um conjunto de caracteres, então é só conferir com o md5sum do servidor. É claro que agora vem a pergunta clássica, mas eu estou usando o Windows, como vou usar o MD5SUM? Ai você terá duas opções, existem aqui mesmo no Superdownloads versões de MD5SUM para rodar no ambiente gráfico do Windows e em janela do DOS, fica a sua escolha, as duas fazem exatamente a mesma coisa. Usando a versão para janela do DOS é só ir para a pasta em que está a ISO e dar o mesmo comando acima, como no Linux. Se você tiver o problema de limite de caracteres com o nome do arquivo do tipo, 8 caracteres para o nome e 3 para a extensão (8.3), renomeie o arquivo para outro nome similar que fique dentro desses limites. Caso queira mais opções com o MD5SUM, digite: md5sum -h Na versão gráfica antes de mais nada é necessário instalar o programa, depois rode e escolha a pasta onde está a ISO e clique em "create sums", vá tomar um café, e depois de algums minutos você verá um monte de números e letras na frente do nome do arquivo, é o seu md5sum. Dicas importantes Caso o md5sum da ISO que você baixou não bater com o que está no Superdownloads, antes de apagar e começar a baixar novamente, verifique o md5sum do servidor de onde você baixou, por exemplo, se você utilizou este link "ftp://ftp.univie.ac.at/systems/linux/Mandrake/iso/Mandrake91-cd1-inst.i586.iso", é só tirar o nome do arquivo e abrir no seu navegador, ficaria assim esse link "ftp://ftp.univie.ac.at/systems/linux/Mandrake/iso/", lá estará a relação das ISOs e o md5sum. É dificil, mas ocasionalmente pode haver uma pequena diferença nas ISOs de um servidor para outro, o que resulta em um md5sum diferente. Para fazer o download das ISOs é preciso usar o modo binário (binary mode), pois se for usado o modo ASCII (como a maioria dos navegadores fazem), com certeza haverá alteração dos dados durante a transferência e sua ISO será corrompida e o m5sum nunca irá bater. Por isso sempre utilize um cliente de FTP ou gerenciador de download com a função de continuar downloads interrompidos (muito importante considerando o tamanho dos arquivos) e que faça o download em modo binário (binary mode). Links relacionados # Todos os softwares relacionados a MD5

30 October 2009

Daring Fireball Linked List: One-Handed Computing With the iPhone

by night.kame

One-handed operation wasn’t feasible on stylus-based systems.

Parfois on peut invoquer l'ignorance ; mais pas toujours. Alors on doit faire appel à la stupidité.

Birmingham timelapse on Vimeo

by karlcow

In the 1960s and 70s research chemist and amateur photographer Derek Fairbrother made over 20 photographic time-lapse sequences showing the demolition of old buildings and their replacement by new buildings and road systems in Birmingham city centre.

24 October 2009

7 Days of Source Day #3 – tree.growth | blprnt.blg

by karlcow

Project: tree.growth

Date: September, 2006

Language: Processing

Key Concepts: Lindenmayer Systems, recursion, biomimicry

19 October 2009

USGS Twitter Earthquake Detector : GIS Lounge - Geographic Information Systems

by karlcow

The USGS is now testing out Twitter to collect early response information about earthquakes: “the USGS is developing a system that gathers real-time, earthquake-related messages from the social networking site Twitter and applies place, time, and quantity data to provide geo-located earthquake detection within 60 seconds of an event’s origin time.“ Social media can be a valuable tool in helping to assess earthquake hazards through anecdotal information from hundreds and potentially thousands of local users.

18 October 2009

Toward urban systems design « Adam Greenfield’s Speedbird

by karlcow

you said: “Especially given the by-now-clichéd recognition that we’ve decisively become an urban species”

It is indeed very interesting to think about urban systems design given there was a major move toward cities. That said I have the feeling that this move comes with, at least, three issues:

1. access to the “thought” urban environment,

2. the space left where 50% of the population is still living,

3. the space of this growth

There are many areas in the world where the growth of the cities is made by people without access or a limited access to the thought urban environment. Poor people living in slums or just in a space which is not part of the work of urban planner per say. In a recent exhibition about slums I went, it was very interesting to see that the organic structure of the slums was making possible for the individuals to create a rich and meaningful space, driving sometimes to less criminality than more traditional areas of the city. The slum is a forced collective creative space for survival.

The rest of the population, the 50% living in deserted areas are the forgotten of this story. It’s indeed more “fun”, interesting for researchers, sociologists to observe and think about the density in urban space (richness of interactions) more than the low level of activities in the “countryside”. Though there are equal challenges there in terms of design and space organization, access to services, etc.

Finally, is it really cities which are growing? What we call urban space often relates to the city center, but I have the feeling that the growth is happening in the in-between space (suburbs), which is again a complete disaster in terms of design, even more so in rich countries. The private space is becoming a space of non-creativity, dead areas of non activities. Someone, who wants to start a small business in between two buildings on the grass of a random suburb of a rich city, will not last for very long. Complete different dynamic than the slum where unregulated areas give the opportunity of creative solutions for surviving or living.

17 October 2009

15 October 2009

Plumber Jack: Python Logging 101

by karlcow

Basic logging of errors to text files and system logs is an old technique, but not very flexible. In this post, I introduce a logging system for the Python programming language. This system, while it borrows ideas from other systems, is not a port of anything but an independent implementation for use by Python developers.The logging package has been part of Python since Python 2.3 (released in 2002).

Coding from Scratch: A Conversation with Virtual Reality Pioneer Jaron Lanier, Part One

by karlcow & 1 other

answer Right. And it results in a type of error that doesn't teach you anything. You have chaotic errors where all you can say is, "Boy, this was really screwed up, and I guess I need to go in and go through the whole thing and fix it." You don't have errors that are proportionate to the source of the error. And that means you can never have any sense of gradual evolution or approximate systems. So, the real difference between the current idea of software, which is protocol adherence, and the idea I'm discussing, pattern recognition, has to do with the kinds of errors we're creating. We need a system in which errors are more often proportional to the source of the error.

The International Virtual Observatory Alliance

by karlcow

The International Virtual Observatory Alliance (IVOA) was formed in June 2002 with a mission to "facilitate the international coordination and collaboration necessary for the development and deployment of the tools, systems and organizational structures necessary to enable the international utilization of astronomical archives as an integrated and interoperating virtual observatory." The IVOA now comprises 17 VO projects from Armenia, Australia, Brazil, Canada, China, Europe, France, Germany, Hungary, India, Italy, Japan, Korea, Russia, Spain, the United Kingdom, and the United States. Membership is open to other national and international projects according to the IVOA Guidelines for Participation.

12 October 2009

Why CouchDB?

by marco (via)
Apache CouchDB is one of a new breed of database management systems. This chapter explains why there's a need for new systems as well as the motivations behind building CouchDB.

09 October 2009

Dr. Rebecca Carley

by rwatuny
Hippocrates Systems, Holistic Health, Vaccination Detox, VIDS (vaccine induced diseases), Reverse Diseases

07 October 2009

SystemRescueCd

by m.meixide & 7 others (via)
SystemRescueCd is a Linux system rescue disk available as a bootable CD-ROM or USB stick for administrating or repairing your system and data after a crash. It aims to provide an easy way to carry out admin tasks on your computer, such as creating and editing the partitions of the hard disk. It comes with a lot of linux software such as system tools (parted, partimage, fstools, ...) and basic tools (editors, midnight commander, network tools). It requires no installation since you just have to boot on the CD-ROM. It can be used to perform admin tasks on both linux servers, linux desktops or windows boxes. The kernel supports most of the important file systems (ext2/ext3/ext4, reiserfs, reiser4, btrfs, xfs, jfs, vfat, ntfs, iso9660), as well as network filesystems (samba and nfs).

Bart's Preinstalled Environment (BartPE) bootable live windows CD/DVD

by m.meixide & 30 others
Bart's PE Builder helps you build a "BartPE" (Bart Preinstalled Environment) bootable Windows CD-Rom or DVD from the original Windows XP or Windows Server 2003 installation/setup CD, very suitable for PC maintenance tasks. It will give you a complete Win32 environment with network support, a graphical user interface (800x600) and FAT/NTFS/CDFS filesystem support. Very handy for burn-in testing systems with no OS, rescuing files to a network share, virus scan and so on. This will replace any Dos bootdisk in no time!

25 September 2009

Porter Stemming Algorithm

by karlcow

The Porter stemming algorithm (or ‘Porter stemmer’) is a process for removing the commoner morphological and inflexional endings from words in English. Its main use is as part of a term normalisation process that is usually done when setting up Information Retrieval systems.

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