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FUDCon Managua 2014 The Facts

Neville - Vie, 11/14/2014 - 10:00

This is a quantitative summary of the things that happened on FUDCon Managua 2014. So cold data, not so much into feelings and ideas.

Four universities other than the venue were visited to promote the event, and also Fedora (UPOLI, RUPAP, UAM and UCA). There was presence in three TV interview at different channels to promote the event.

Our online registration at the website had 175 persons, our estimated peak attendance was 150. This was really under the shadow of last year 800 people audience in Cusco. The badge for FUDCon Managua 2014 was awarded 46 times, which give us an idea of how many FAS accounts were active. Last year were only 25. This shows that our low attendance was highly engaged.

Ambassadors team got new 4 members (lilixx, searchsam, srkraken and creaturahpc) and one new candidate (menina).

Web sites team got one new team member (Echevemaster) that got involved during the preparations for FUDCon and two new candidates (lilixx and sophiekovalesky). By the time both candidates have alredy submited patches.

Packager is a bit mor difficult to describe. There is one approved memeber (williamjmorenor) and there are four people that submited packages (yaderv, franko92 magjogui and pynash). franko92 has 2 packages in review and yaderv did also the migration of icaro package from GTk2 to Gtk3.

Documentation got one candidates (searchsam) that by now is already approved.

This sum 12 people that moved from a non defined relationship with fedora to actual contributors. Many of them were in the borderline, but FUDCon did the last push to cross the line to engage wit actual teams.

Infraestructure got two person interested (mayorga and creaturehpc) but both need follow up to see if that interest become more than that.

First time that FUDCon LATAM had computer labs. There were two, we had limitations on the use of them, but we had them. We have a hacking at night, a meeting room at the hotel was available from Tuesday 21st to Friday 24th which was convenient.

We got some news hits as follow:
Printed
El Nuevo Diario Róbotica Educativa
El Nuevo Diario FUDCon

Online
La prensa TV FUDCon
Revista Help Desk TIC FUDCon

FUDCon Managua 2014 The Facts

Fedora Nicaragua - Vie, 11/14/2014 - 10:00

This is a quantitative summary of the things that happened on FUDCon Managua 2014. So cold data, not so much into feelings and ideas.

Four universities other than the venue were visited to promote the event, and also Fedora (UPOLI, RUPAP, UAM and UCA). There was presence in three TV interview at different channels to promote the event.

Our online registration at the website had 175 persons, our estimated peak attendance was 150. This was really under the shadow of last year 800 people audience in Cusco. The badge for FUDCon Managua 2014 was awarded 46 times, which give us an idea of how many FAS accounts were active. Last year were only 25. This shows that our low attendance was highly engaged.

Ambassadors team got new 4 members (lilixx, searchsam, srkraken and creaturahpc) and one new candidate (menina).

Web sites team got one new team member (Echevemaster) that got involved during the preparations for FUDCon and two new candidates (lilixx and sophiekovalesky). By the time both candidates have alredy submited patches.

Packager is a bit mor difficult to describe. There is one approved memeber (williamjmorenor) and there are four people that submited packages (yaderv, franko92 magjogui and pynash). franko92 has 2 packages in review and yaderv did also the migration of icaro package from GTk2 to Gtk3.

Documentation got one candidates (searchsam) that by now is already approved.

This sum 12 people that moved from a non defined relationship with fedora to actual contributors. Many of them were in the borderline, but FUDCon did the last push to cross the line to engage wit actual teams.

Infraestructure got two person interested (mayorga and creaturehpc) but both need follow up to see if that interest become more than that.

First time that FUDCon LATAM had a computer labs. There were two, we had limitations on the use of them, but we had them. We have a hacking night hacking room, a meeting room at the hotel was available from Tuesday 21st to Friday 24th which was convenient.

We got some news hits as follow:
Printed
El Nuevo Diario Róbotica Educativa
El Nuevo Diario FUDCon

Online
La prensa TV FUDCon
Revista Help Desk TIC FUDCon

Cómo añadir Ixquick a los motores de búsqueda de Firefox

eliasbrasa - Jue, 11/13/2014 - 11:55

Os hablaba en la entrada anterior sobre los buscadores anónimos, pero una duda que nos podía surgir era: si quiero usar Ixquick como motor de búsqueda en Firefox ¿cómo lo hago?

Sencillo, pulsáis sobre el motor de búsqueda que estéis usando (por defecto Google) y os sale una ventana como la siguiente:

Motores de búsqueda Firefox

Bastará pulsar en el enlace “Obtener más motores de búsqueda” (ver enlace en azul en la parte inferior izquierda) y buscar Ixquick HTTPS Privacy Search Engine entre los resultados. Otra opción es que hagáis clic en el enlace que os he dejado en el nombre de la extensión. Una vez lo instaléis lo tendréis disponible como motor de búsqueda (como podéis ver en la imagen anterior) y podréis sustituirlo por el que estéis usando.


FUDCon Managua 2014 The rough edges

Neville - Jue, 11/13/2014 - 09:47

We have a paradox. We are equally fedora contributors and members of the fedora project but we are not equal. There are two variables that I will like to point, income and confidence. We have successful people very confident and with relative good income on one side and students with no job building their character. Some of the students depend on scholarship to keep them in college.

So, one extreme may get pushy to say we are equal, we have to chip in the same for food and drinks. That is unfair. We all not have the same resources and we all not drink alcohol. This is a rough edge that we should avoid. This kind of pressure is not trivial for some people.

In the other extreme, you get questions like: there will be something to pay for gas to help the ride? You may think that is because they don’t want to get ask for money that they don’t have. But I like to believe it is because they know the value of things and want to help is they can.

You find very nice contributors that take care of the whole bill, and most people think they do that because they can. But I firmly believe they do because they know that there are someones that can’t afford their share in that bill.

But sometimes somebody said that will take care of the bill and then collect later. Which is a way to spare those who can afford their share. Some times people that can cover their share don’t repay and is odd to be reminding people about that.

For me the worts of all is the sum . Those that overdue they excitement and end up short on money. They are usually the same who don’t repay, those who do not ask if a share is needed, those who do not thanks if the bill has been covered for them and also those who force others to chip equally.

But if we are not aware that we have diversity in income and in character, we will be hurting people when we get all together. Please pause and think. We should not hurt our friend just because our equality as contributors is overestimate .

FUDCon Managua 2014 The rough edges

Fedora Nicaragua - Jue, 11/13/2014 - 09:47

We have a paradox. We are equally fedora contributors and members of the fedora project but we are not equal. There are two variables that I will like to point, income and confidence. We have successful people very confident and with relative good income on one side and students with no job building their character. Some of the students depend on scholarship to keep them in college.

So, one extreme may get pushy to say we are equal, we have to chip in the same for food and drinks. That is unfair. We all not have the same resources and we all not drink alcohol. This is a rough edge that we should avoid. This kind of pressure is not trivial for some people.

In the other extreme, you get questions like: there will be something to pay for gas to help the ride? You may think that is because they don’t want to get ask for money that they don’t have. But I like to believe it is because they know the value of things and want to help is they can.

You find very nice contributors that take care of the whole bill, and most people think they do that because they can. But I firmly believe they do because they know that there are someones that can’t afford their share in that bill.

But sometimes somebody said that will take care of the bill and then collect later. Which is a way to spare those who can afford their share. Some times people that can cover their share don’t repay and is odd to be reminding people about that.

For me the worts of all is the sum . Those that overdue they excitement and end up short on money. They are usually the same who don’t repay, those who do not ask if a share is needed, those who do not thanks if the bill has been covered for them and also those who force others to chip equally.

But if we are not aware that we have diversity in income and in character, we will be hurting people when we get all together. Please pause and think. We should not hurt our friend just because our equality as contributors is overestimate .

[Vídeo] Todos los triángulos son equiláteros

Gaussianos - Jue, 11/13/2014 - 05:00

Interesante vídeo el que nos traen los cracks de Numberphile. En él Carlo H. Séquin, de la Universidad de Berkeley, nos presenta una supuesta demostración de que todos los triángulos son equiláteros:

A ver quién nos explica dónde está el fallo de dicha prueba.

Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un mensaje.

Construye tú también el poliedro de Császár.

Delicious Homemade Juice with Juicer Machine

Fedora Uruguay - Mié, 11/12/2014 - 21:52

Homemade juices are the healthiest drink we can possibly have. Given we have the freedom to experiment on various fruits that are all teeming with essential vitamins and nutrients, the possibilities are endless as long as you have a reliable juicer. Are you interested to know about the best juicer machine? Although the competition to achieve such honor is very intense nowadays as more and more new juicers are introduced in the market, this article will introduce the two most famous juicers in terms of number of sales and how warm they were welcomed by customers worldwide.

The Breville Juicer
The Breville Juicer series is known for speed and overall performance. It is said that these juicers are fast enough to create 8-ounce of juice within 5 seconds. Aside from their unmatched speed, Breville juicers are also known worldwide because they are very easy to use. Their package comes with a comprehensive guide so even those who never tried using such kind of kitchen device before can utilize them effectively in just a few tries. Although Breville juicers are not cheap, majority of its buyers, if not all, never regretted about making such an investment as it lead them towards a healthier and more fulfilling life.

The Jack Lalanne Juicer
The Jack Lalanne Juicer is bulky like majority of juicers in the market today. Nevertheless, many are impressed on how it simplifies juicing. The fact that it is endorsed by Jack Lalanne himself, an infamous nutritionist and TV personality is more than enough to convince millions of health-conscious individuals across the world to try it out. Another exciting feature of the Jack Lalanne Juicers is its ability to limit noise and trash. No other juicer in the market today offers such kind of convenience while delivering optimum results.

Regardless which of these top juicers you choose, you’ll never go wrong. Simply pick one that satisfies all your needs and carries a price that perfectly fits your budget.

The post Delicious Homemade Juice with Juicer Machine appeared first on Janice in the Kitchen.

Confirmado que el 44º primo de Mersenne es en realidad el 44º primo de Mersenne

Gaussianos - Mié, 11/12/2014 - 10:00

Menudo título para un post… Parece una obviedad como un castillo, ¿verdad? Pues no lo es, ni mucho menos, y vamos a explicar el porqué. GIMPS, el proyecto colaborativo de búsqueda de primos de Mersenne, ha terminado la verificación de que el cuadragésimo cuarto primo de Mersenne que se encontró es, efectivamente, el primo de Mersenne número 44 si los colocamos en orden numérico de menor a mayor.

La historia es como sigue. Hasta septiembre de 2006 se conocían 43 primos de Mersenne…

Recordemos que un primo de Mersenne es un número entero positivo de la forma 2^n-1 (para algún n también entero positivo) que además es un número primo. Su nombre se debe a Marin Mersenne, que fue quien propuso esa expresión como generadora de números primos, y se suelen denotar como M_n.



…y se sabía que no había ningún otro primo de Mersenne menor que ese cuadragésimo tercero (que es M_{30402457}), por lo que hasta ese momento la lista de primos de Mersenne estaba completa hasta ese número.

Marin MersenneA principios de ese mes de septiembre de 2006 se encuentra un nuevo primo de Mersenne, concretamente el siguiente:

M_{32582657}=2^{32582657}-1

que, por tanto, era el cuadragésimo cuarto primo de Mersenne que se encontraba. Evidentemente, este número era mayor que el cuadragésimo tercero de la lista, M_{30402457}, pero lo que no se sabía era si entre ellos había algún otro primo de Mersenne que todavía no se había encontrado. Bien, pues eso es lo que han confirmado ahora: que no hay ningún otro número de Mersenne que sea primo entre el que se encontró en la posición 43, M_{30402457}, y el que se encontró en la posición 44, M_{32582657}. Esto es lo que puede verse ahora mismo en la web de GIMPS:

Esto significa entonces que ahora la lista de primos de Mersenne está completa hasta el cuadragésimo cuarto. Tened en cuenta que han tardado más de 8 años en verificarlo, o sea que la cosa no era tan obvia…

Se conocen más primos de Mersenne, evidentemente mayores que M_{32582657} (concretamente cuatro más), pero todavía no se sabe si hay alguno más entre éste y los conocidos mayores que él, por lo que la lista colocada en orden numérico creciente podría no estar completa desde el 44 en adelante (aquí podéis ver el listado completo de los primos de Mersenne conocidos hasta la fecha, y más información acerca de ellos). Habrá que esperar algo más de tiempo para confirmar la posición de estos números en la lista o, por qué no, para encontrar otros primos de Mersenne que nos hayamos dejado por el camino. Intentaré manteneros informados de los pormenores de dicha búsqueda.

Vía The Aperiodical.

Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un mensaje.

Construye tú también el poliedro de Császár.

FUDCon Managua 2014 The Regrets

Neville - Mié, 11/12/2014 - 09:00

I want to apologize to people that I hurt. I was on the edge having to deal with too many things, apparently it was a cutting edge and not in the good sense.

First, I want to apologize to a friend who usually bring the fun to the meetings. I was so desperate to get things done for the event that forgot that we needed fun. Even that I always said that fun is important. I miss him as part of our team, as a friend.

Second, I want to apologize to Eduardo Echeverria. We had a block in communication and I lost it. Before doing or saying anything regrettable, I left. This was not well understood. People do not believe that as amicable as I usually am, I can lost it. Usually it is not a good idea to put a finger into a spinning fan. I try to avoid people from the hazard of my spinning. Nothing said, nobody hurt, but it was an awkward moment at an inconvenient time an took me a while a regain my self control. This also should include apologies to Lila and Samuel who took my load during this time.

Third, I want to apologize to Fernando. He is a kind person and sometimes I feel that he look up to me. A trivial issue for me, that was important for him. I dismissed him harshly and rushy twice. Worst of all, second time in front of other people.

I think that most likely there are people that I am missing on this list, I am most sorry to have been hurting some one and not even noticing. I apologize to all.

FUDCon Managua 2014 The Regrets

Fedora Nicaragua - Mié, 11/12/2014 - 09:00

I want to apologize to people that I hurt. I was on the edge having to deal with too many things, apparently it was a cutting edge and not in the good sense.

First, I want to apologize to Porfirio who usually bring the fun to the meeting. I was so desperate to get things done for the event that forgot that we needed fun. Even that I always said that fun is important. I miss him as part of our team, as a friend.

Second, I want to apologize to Eduardo Echeverria. We had a block in communication and I lost it. Before doing or saying anything regrettable, I left. This was not well understood. People do not believe that as amicable as I usually am, I can lost it. Usually it is not a good idea to put a finger into a spinning fan. I try to avoid people from the hazard of my spinning. Nothing said, nobody hurt, but it was an awkward moment at an inconvenient time an took me a while a regain my self control. This also should include apologies to Lila and Samuel who took my load during this time.

Third, I want to apologize to Fernando. He is a kind person and sometimes I feel that he look up to me. A trivial issue for me, that was important for him. I dismissed him harshly and rushy twice. Worst of all, second time in front of other people.

I think that most likely there are people that I am missing on this list, I am most sorry to have been hurting some one and not even noticing. I apologize to all.

Influencer o currante

Jose Salgado - Mié, 11/12/2014 - 07:12

influencer

Siete de la mañana, sentado en la cocina tomando un café leyendo la prensa mientras hacía tiempo para despertar a los niños y empezar la rutina. Voy deslizando el dedo por el lector de feeds y me encuentro con este titular: ‘Influencer’ sociable o trabajador incansable… ¿Qué prefieres ser?. Me atraganto con el café, se me caen los ojos al suelo, y al intentar recuperarlos me piso globo ocular derecho, resbalo y el

Esto es un resumen del artículo Influencer o currante escrito para Exelisis. Visita la web para más información y compártelo si crees que es interesante.

¡¡Gaussianos es finalista en la categoría “Mejor Blog de Ciencia” en los Premios #XBitácoras 2014!!

Gaussianos - Mié, 11/12/2014 - 05:00

Tal y como podéis ver en el título de esta entrada, Gaussianos ha entrado entre los tres finalistas en la categoría de “Mejor Blog de Ciencia” de los Premios Bitácoras 2014.

La competencia en esta categoría ha sido durísima, como en los años anteriores, y los cambios en la clasificación entre los seis o siete primeros puestos han sido la nota predominante en las sucesivas clasificaciones parciales. Pero al final se ha conseguido el primero de los objetivos: entrar dentro de los tres primeros clasificados.

El segundo paso, que sería obtener el premio final, es muy complicado, como no podía ser de otra forma. Los otros dos blogs que optan al premio en la categoría de Ciencia, Cuentos Cuánticos y Dimetilsulfuro, son dos grandes blogs, por lo que la cosa no será nada fácil. Pero bueno, dicen que la esperanza nunca se pierde, por lo que habrá que esperar a la elección del jurado para ver quién es el que levanta el trofeo.

Os dejo el listado de los diez primeros clasificados en esta categoría de Ciencia:

  1. Cuentos Cuánticos
  2. Dimetilsulfuro
  3. Gaussianos

  4. Ese punto azul pálido
  5. Gominolas de petróleo
  6. Ciencia de sofá
  7. La pizarra de Yuri
  8. Scientia
  9. Los mundos de Brana
  10. Mujeres con ciencia

El resto de la clasificación podéis verla en el enlace que aparece al principio de esta entrada. Y, por cierto, os recomiendo que buceéis en ella, que le echéis un vistazo a todos los blogs que aparecen ahí, porque todos merecen mucho la pena.

Por otra parte, la ceremonia de entrega de premios tendrá lugar en Madrid, concretamente en La Casa Encendida, el próximo viernes 21 de noviembre. Si no ocurre nada que lo impida, servidor estará allí de cuerpo presente. Ya os iré contando cómo va todo.

Por otra parte, no quería dejar pasar esta oportunidad sin compartir con vosotros mis votos en la categoría de Ciencia de estos premios:

  • Tito Eliatron Dixit: porque es de lo mejor en matemáticas que te puedes encontrar por la red. Aunque ya no tenga tiempo para escribir (lástima), siempre tendrá mi voto por todo lo que ha aportado a las matemáticas en la blogosfera.
  • Historias de la Ciencia: porque fue uno de los primeros blogs de ciencia que recuerdo haber visitado (posiblemente el primero junto al de Tío Petros) y porque siempre he aprendido algo de todo lo mucho y muy bueno que ha escrito en su larga trayectoria.
  • Cuentos Cuánticos: porque no he visto a nadie más que a él explicar conceptos físicos (en ocasiones muy complejos) con esa destreza. Y porque a veces también “se atreve” con las matemáticas, haciéndolo también de maravilla.
  • La ciencia de la mula Francis: porque no conozco ningún otro blog en español que toque temas tan complejos y tan variados como él, y que demuestre una y otra vez en sus artículos sus amplios conocimientos en muchos campos y su gran capacidad para mantenernos al día en todos ellos.
  • Gaussianos: porque es mi blog, y como es natural me tenía que autovotar.
    • Y, para terminar, os tengo que agradecer a todos el apoyo que dais al blog a diario, con vuestras visitas, comentarios o menciones en redes sociales y, cómo no, que vuestros votos hayan hecho que Gaussianos pueda optar a este premio. Sin vosotros este blog no sería nada, y es vuestra presencia aquí la que hace que siga con ganas de continuar con él. De nuevo, muchas gracias a todos.

      Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un mensaje.

      Construye tú también el poliedro de Császár.

Buscadores anónimos

eliasbrasa - Mar, 11/11/2014 - 10:56

¿Por qué puede ser interesante utilizar buscadores anónimos en vez de el archifamoso Google? Básicamente para defender tu intimidad, pero hablando de una manera más funcional hay que tener en cuenta que Google te ofrece los resultados de una manera sesgada, por ejemplo, si utilizas mucho Wikipedia comenzará a ofrecerte por sistema a Wikipedia como primeros resultados ¿es eso malo? No, pero si Wikipedia es el ejemplo imaginad que visitamos por sistema páginas de cierto tipo de ideas políticas, por ejemplo liberales, cada vez los resultados en nuestras búsquedas estarán más sesgados y cada vez nos “radicalizaremos” más en contra de los conservadores, no veremos ningún contraste al buscar en Google porque este nos ofrece resultados personalizados a nosotros, no a la realidad.

Pasemos a lo que nos interesa:

DuckDuckGo es un buscador que está muy bien y que trabaja muy bien en inglés, pero hay que decir que se está poniendo las pilas en castellano también, así que, como siempre, es una de las primeras opciones a tener en cuenta. (Enlace) y, además, os dejo un enlace a una entrada que realicé hace poco sobre este buscador.

Si lo tuyo es adicción a Google no te preocupes Ixquick y Startpage utilizan su motor de búsqueda, pero sin enviar datos de usuario. Las diferencias entre uno y otro no las tengo muy claras, pero sí que puedo afirmar que Ixquick se puede personalizar y Startpage no.

Pero si lo que te gusta es el medio ambiente y, además, no te importa usar como motor de búsqueda a Yahoo! y/o Bing lo tuyo es Ecosia, plantan árboles en Brasil con el 80% de los beneficios de la empresa ;) ;)

Es decir, no tienes escusa si lo que quieres es proteger tu privacidad a la hora de trabajar con buscadores web.

NOTA: Fijaros en un pequeño detalle: todos los enlaces de estos buscadores son https ;) ;)

Fuentes: Ounae y Bron.


Número 10 de la revista online de matemáticas “PIkasle”

Gaussianos - Mar, 11/11/2014 - 10:00

Hace unos días salió nuevo número, el décimo, de PIkasle, revista online de matemáticas creada por un grupo de estudiantes de la Universidad del País Vasco.

En este nuevo número la portada está dedicada al Año Internacional de la Cristalografía:

Os dejo los contenidos de este número contados por los propios autores:

En este nuevo número, la cristalografía es la protagonista, pues la UNESCO ha decidido hacer de este año 2014 el año de la cristalografía, que, más allá de su interés en sí, guarda estrecha relación con las matemáticas. Así es que PIkasle se suma a la celebración.

  • ¡PIkasle se renueva! Así comienza la sección de noticias, donde el comité editorial explica los cambios realizados en la organización de PIkasle.
  • Irene Llana nos habla del próximo estreno en la gran pantalla The Imitation Game, la película de la vida de Alan Turing.
  • Víctor Manero ha tenido el placer de entrevistar a Sheila Carreño, matemática de la UPV/EHU que nos cuenta sobre su experiencia laboral.
  • ¡Entrevista con Ron de Vore! En este número se entrevista, de la mano de Ricardo Grande y Josué Tonelli-Cueto, al famoso matemático americano.
  • Amaiur Holgado y Nahia Agirregoikoa nos traen la segunda parte de Fantasiazko Eraikinak.
  • Aitziber Ibáñez nos habla de El Café Escocés, un artículo contando la curiosa historia de El Libro Escocés (tema que, por cierto, ya tratamos en Gaussianos hace un tiempo).
  • Finalmente, Manuel Santos nos presenta a Poincaré, no como matemático, sino como filósofo.

Podéis acceder online a este décimo número de PIkasle en este enlace, y también podéis descargarlo de manera gratuita en este otro enlace. Pues nada, ya solamente queda desearos que la disfrutéis. Bueno, y también que la difundáis entre vuestros amigos y conocidos y vuestras redes sociales, la gente de PIkasle lo merece.

Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un mensaje.

Construye tú también el poliedro de Császár.

FUDCon Managua 2014 Web Site

Neville - Mar, 11/11/2014 - 09:00

I am not sure why am writing this. For once I know that true man do not ask directions. In the other hand against all philosophy of sharing and reusing the best code, true is that FUDCon LATAM sites never reuse what was done before.

The most important thing is that the results of the web site are not under only one person alone. Depend in the input from others, the request from event organizers, the time to spare, the help received, among other factors.

We had a beautiful site for FUDCon Managua 2014. We needed to show off who will come, what they will talk about, where this will happening and promote our sponsors. All this was accomplished. Plus we have registration and vote cast on talks to help us put together the schedule. All in all was a good site. I can go on talking the beauties of the site and why the new organizing team should use it. But, I think there are some issues that need to be considered for the next team.

Most of web sites do not have hard dead line. Event web sites are a special category, they do have hard dead line. You need to show people that you are serious and I don’t know why, having a website is a proof. Probably is following the saying: “If it is on internet, it should be true”.

The web site is how do you get sponsorship, how do you get other experts to join your speaker list, how do you get doors opened in universities to talk to students and how do you get attention from media. You need to list your sponsors, your topics and your speakers. Sadly, if you have foreign speakers you will get more attention. The sooner you got this in place, the sooner you can start getting things flowing. We had troubles with time. It is not one person fault, it was everybody fault.

But you can’t lie, so you have to mark those that are invited and those that have already confirmed. At some point you have to hide (erase) those who are not coming and accordingly hide (erase) they talks. This was an issue that were not implemented at the beginning, and the implementation was not aesthetics as it should.

Let’s take a small side track. When I was in the first steps of the free software community, I was invited to an event and asked to create a Launch Pad Ubuntu account. At that moment I didn’t mind. Six years after, if I am invited to give a talk in a conference, and they ask me to fill an account with their membership … well you know … I will say yes to everything and do nothing.

So I can’t ask local experts and expect that they create a FAS account to be on the event site. You can not build a site based on FAS, of course you are doing a Fedora convention. But you are asking favors. If everything go smooth, they may like to join fedora community. If I start by forcing them to create a FAS, they won’t. If I made that mandatory, I will loose local experts talks. My favorite phrase is “How I can help you help me”.

One issue that was spotted at last time was, that there was no name on talks, only the image of people that was going to give the talk.

Having a short time, affected the vote cast option. We had what can be considered more like an random sample rather than a statistical significant amount of data to support our schedule desitions.

Another issue, was that people doing multiple talks did not provide sequence. Most times this did not matter. But some cases was important. As the schedule was made based on votes, and having at one side the special request, not having this information made lot of problem at the event. It will be desirable to have a more complete output for the vote, to help people make the schedule.

The vote and the schedule was a first experience on FUDCon LATAM. This is a cultural issue. People want to know what they will attend. There is no culture for des-conferences. You can not count on all people having devices to vote on site. Not to mention the schedule nightmare that we had with the votes. Thus, the event would crash. And if you have too much people, you can not have the marking sheets. I remember once that there were some dark marking sheets, where mark had low contrast. I still think that for LATAM, the vote cast was a good idea and we failed in implementation. Failed in time and communication. It is something that we can built on. Pass this experience.

A good idea that got pending was the link to upload the slides. It was even includen in the booklet. Slides were not possible to be upload by each person giving a talk. They have to be collected in order to be uploaded using ssh. In the end, the slides were not collected. So, there upload bottle neck was not an issue.

I have to thanks Echevemaster for a beautiful site, with so many features and so much time invested. It was an amazing result for the time given. Lilixx did a nice touch with the slides. Axioma provide help. But all in all was Echevemaster brainchild. Best way to recognize this work is to reuse and improve the inner work for next FUDCon LATAM

FUDCon Managua 2014 Web Site

Fedora Nicaragua - Mar, 11/11/2014 - 09:00

I am not sure why am writing this. For once I know that true man do not ask directions. In the other hand against all philosophy of sharing and reusing the best code, true is that FUDCon sites never reuse what was done before.

The most important thing is that the results of the web site are not under only one person alone. Depend in the input from others, the request from event organizers, the time to spare, the help received, among other factors.

We had a beautiful site for FUDCon Managua 2014. We needed to show off who will come, what they will talk about, where this will happening and promote our sponsors. All this was accomplished. Plus we have registration and vote cast on talks to help us put together the schedule. All in all was a good site. I can go on talking the beauties of the site and why the new organizing team should use it. But, I think there are some issues that need to be considered for the next team.

Most of web sites do not have hard dead line. Event web sites are a special category, they do have hard dead line. You need to show people that you are serious and I don’t know why, having a website is a proof. Probably is following the saying: “If it is on internet, it should be true”.

The web site is how do you get sponsorship, how do you get other experts to join your speaker list, how do you get doors opened in universities to talk to students and how do you get attention from media. You need to list your sponsors, your topics and your speakers. Sadly, if you have foreign speakers you will get more attention. The sooner you got this in place, the sooner you can start getting things flowing. We had troubles with time. It is not one person fault, it was everybody fault.

But you can’t lie, so you have to mark those that are invited and those that have already confirmed. At some point you have to hide (erase) those who are not coming and accordingly hide (erase) they talks. This was an issue that were not implemented at the beginning, and the implementation was not aesthetics as it should.

Let’s take a small side track. When I was in the first steps of the free software community, I was invited to an event and asked to create a Launch Pad Ubuntu account. At that moment I didn’t mind. Six years after, if I am invited to give a talk in a conference, and they ask me to fill an account with their membership … well you know … I will say yes to everything and do nothing.

So I can’t ask local experts and expect that they create a FAS account to be on the event site. You can not build a site based on FAS, of course you are doing a Fedora convention. But you are asking favors. If everything go smooth, they may like to join fedora community. If I start by forcing them to create a FAS, they won’t. If I made that mandatory, I will loose local experts talks. My favorite phrase is “How I can help you help me”.

One issue that was spotted at last time was, that there was no name on talks, only the image.

Having a short time, affected the vote cast option. We had what can be considered more like an random sample rather than a statistical significant amount of data to support our schedule desitions.

Another issue, was that people doing multiple talks did not provide sequence. Most times this did not matter. But some cases was important. As the schedule was made based on votes, and having at one side the special request, not having this information made lot of problem at the event. It will be desirable to have a more complete output for the vote, to help people make the schedule.

The vote and the schedule was a first experience on FUDCon LATAM. This is a cultural issue. People want to know what they will attend. There is no culture for des-conferences. You can not count on all people having devices to vote on site. Not to mention the schedule nightmare that we had with the votes. Thus, the event would crash. And if you have too much people, you can not have the marking sheets. I remember once that there were some dark marking sheets, where mark had low contrast. I still think that for LATAM, the vote cast was a good idea and we failed in implementation. Failed in time and communication. It is something that we can built on. Pass this experience.

I have to thanks Echevemaster for a beautiful site, with so many features and so much time invested. It was an amazing result for the time given. Lilixx did a nice touch with the slides. Axioma provide help. But all in all was Echevemaster brainchild. Best way to recognize this work is to reuse and improve the inner work for next FUDCon LATAM

Conocimiento y experiencia

Jose Salgado - Mar, 11/11/2014 - 08:51

conocimiento

Conocimiento es saber como funciona pero que a la hora de ponerlo en práctica no salga nada y experiencia es hacerlo funcionar pero no tener ni remota idea del porqué. Y esta debería de ser una lección que todos deberíamos de tener almacenada en nuestra mente, al lado de la que afirma que no hay nada más práctico que una buena teoría y nada más teórico que una buena práctica.

Cuando empezamos nuestra andadura creemos que sabemos de todo y que somos los maestros de nuestro propio universo, pero cuanto más avanzas en

Esto es un resumen del artículo Conocimiento y experiencia escrito para Exelisis. Visita la web para más información y compártelo si crees que es interesante.

Cinco primos relativos por parejas

Gaussianos - Mar, 11/11/2014 - 04:00

Vamos con el problema de esta semana. Aquí tenéis el enunciado:

Dado el conjunto S=\lbrace 1,2,3, \ldots ,280 \rbrace, encontrar el mínimo número natural n tal que en todo subconjunto de S que tenga n elementos haya cinco números que son primos relativos dos a dos.

A por él.

Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un mensaje.

Construye tú también el poliedro de Császár.

Instalar MariaDB 10.0 en Ubuntu 14.04 y derivados

Xenode - Mar, 11/11/2014 - 00:43

Para instalar MariaDB 10.0 en Ubuntu 14.04 y derivados tenemos que hacer lo siguiente:

1. sudo apt-get install software-properties-common
2. sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xcbcb082a1bb943db
3. sudo add-apt-repository 'deb http://sfo1.mirrors.digitalocean.com/mariadb/repo/10.0/ubuntu trusty main'
4. sudo apt-get update
5. sudo apt-get purge mysql*
6. sudo apt-get purge mariadb*
7. sudo apt-get install mariadb-server
Y eso sería todo... Se nos pedirá una contraseña de root para nuestra base de datos y listo.

¿Servidor en producción? Instalación Segura

Para hacer una instalación segura corremos el comando:

sudo /usr/bin/mysql_secure_installation

Que nos hará algunas preguntas las cuales debemos leer detenidamente para proteger nuestro setup.

Extra: Maniputlar el arranque/detención

sudo /etc/init.d/mysql stop (si está corriendo)
sudo /etc/init.d/mysql start (si está detenida)

Usando MariaDB...

Luego de instalar podremos loguearnos como root a la base de datos con el comando:

mysql -u root -p

para comenzar a utilizarla como lo haríamos comúnmente (creando DB's, usuarios y demás).

P.D. Si vas a acceder remotamente a tu DB, no olvides abrir en tu firewall el puerto 3306/tcp para dicho cometido.

Un tweet por artículo

Jose Salgado - Lun, 11/10/2014 - 14:03

tweet

Más o menos, todos los que se dedican al marketing conocen los tres tipos de publicidad que una empresa puede tener: Paid Media, Earned Media y Owned Media. Dicho así en inglés queda muy chulo, pero traducido sería algo como la publicidad que pagas, la que sale en tus propios medios, y la que te comparten en redes sociales.

En un artículo que hablaba sobre este tema, recomendaba la opción de obligar a la gente a hacer un tweet o cualquier tipo de acción sobre cualquier red social para incrementar su earned media. Es una

Esto es un resumen del artículo Un tweet por artículo escrito para Exelisis. Visita la web para más información y compártelo si crees que es interesante.

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