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Alors, fidèles ?

Pipo me relance sur la fidélité des chinoises dans cette note. C’est un bien vaste sujet que j’avais abordé avec beaucoup de légèreté dans la question sans réponse. Si vous souhaitez partager votre point de vue ou bien vos expériences, les commentaires...




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Mieux que les back dormitory boys




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Blogging or not ?

Y parait que je ne blogue plus ??? C’est le robot over-blog qui me le fait savoir tous les mois par un message de rappel… oups ! Ca va revenir, mais la c’est vrai c’est les vacances et je ne suis même pas en Chine. A+ au mois d’août… peut-être.




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Angst vor dem Altar

Die Ehe wird erst beschlossen, dann geschlossen, in beiden Fällen von der Familie. Die Verheirateten haben kein Wort mitzureden. Nach ihren Gefühlen fragt niemand. Es geht um Ehre, um Tradition, um Geld. Allein in Deutschland werden laut Terre des Femmes jährlich 30.000 Zwangsehen geschlossen.




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Angst und Schrecken in New Orleans

New Orleans, eine Stadt umgeben von Wasser. 1965 erlebte die Metropole des Jazz? seine bis dahin größte Hurrikankatastrophe. Betsy überschwemmte den Großteil der Stadt. Exakt 40 Jahre später steht die Stadt abermals unter Wasser - dieses Mal bis zu 7,6 Meter. Nach dem Bruch der Dämme trat der Lake Pontchartrain über die Ufer und überschwemmte 80 Prozent der Stadt. 1.800 Menschen kamen durch Hurrikan Katrina im August 2005 ums Leben. Kristin erlebte die Stunden vor der Ankunft des Hurrikanes vor Ort.




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Großer Mafia-Prozess: Mehr als 40 Angeklagte stehen vor Gericht

Am 5. November 2015 begann in der italienischen Hauptstadt ein großangelegter Prozess gegen die Mafia. Im Mittelpunkt steht Massimo Carminati, der im Dezember 2014 verhaftet worden war. Aus Sicherheitsgründen erscheint er nicht persönlich, sondern wird per Videoübertragung am Prozess teilnehmen. Die Angeklagten sollen Bestechungsgelder bezahlt haben, um staatliche Aufträge bei ...




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GRÜNE fordern vom Bund mehr Unterstützung bei der Unterbringung von Flüchtlingen

Zunehmende Kritik an der Flüchtlingspolitik der Bundesregierung kommt jetzt von der Partei BÜNDNIS 90 / Die GRÜNEN. Die Länder und Kommunen könnten die finanziellen Lasten nicht mehr tragen, und die Zuschüsse vom Bund reichten bei Weitem nicht aus. Bisher will der Bund die Länder mit zusätzlich 500 Millionen Euro bei ...




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US-Präsidentschaftskandidat hält an abenteuerlicher Pyramidentheorie fest

Der US-amerikanische Präsidentschaftskandidat Ben Carson vertritt eine abenteuerliche Theorie über die ägyptischen Pyramiden: nach seiner Überzeugung dienten diese als Getreidespeicher. Diese Theorie verkündete er bereits im Jahre 1998 und wiederholte sie vor kurzem gegenüber dem Nachrichtensender CBS. Bis 2013 war er der heute 64jährige Carson als Facharzt für Neurochirurgie tätig ...




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Using TCP Keepalive to Detect Network Errors

This is not only a H.323 topic, but since H.323 also uses TCP connections, it applies to H.323 as well:

To detect network errors and signaling connection problems, you can enable TCP keep alive feature. It will increase signaling bandwidth used, but as bandwidth utilized by signaling channels is low from its nature, the increase should not be significant. Moreover, you can control it using keep alive timeout.

The problem is that most system use keep alive timeout of 7200 seconds, which means the system is notified about a dead connection after 2 hours. You probably want this time to be shorter, like one minute or so. On each operating system, the adjustment is done in a different way.

After settings all parameters, it's recommended to check whether the feature works correctly - just make a test call and unplug a network cable at either side of the call. Then see if the call terminates after the configured timeout.

Linux systems

Use sysctl -A to get a list of available kernel variables
and grep this list for net.ipv4 settings (sysctl -A | grep net.ipv4).
There should exist the following variables:
net.ipv4.tcp_keepalive_time:   time of connection inactivity after which
                               the first keep alive request is sent
net.ipv4.tcp_keepalive_probes: number of keep alive requests retransmitted
                               before the connection is considered broken
net.ipv4.tcp_keepalive_intvl:  time interval between keep alive probes

You can manipulate with these settings using the following command:

sysctl -w net.ipv4.tcp_keepalive_time=60 net.ipv4.tcp_keepalive_probes=3 
    net.ipv4.tcp_keepalive_intvl=10

This sample command changes TCP keepalive timeout to 60 seconds with 3 probes,
10 seconds gap between each. With this, your application will detect dead TCP
connections after 90 seconds (60 + 10 + 10 + 10).

FreeBSD and MacOS X

For the list of available TCP settings (FreeBSD 4.8 an up and 5.4):

sysctl -A | grep net.inet.tcp

net.inet.tcp.keepidle - Amount of time, in milliseconds, that the (TCP) 
connection must be idle before keepalive probes (if enabled) are sent.

net.inet.tcp.keepintvl - The interval, in milliseconds, between 
keepalive probes sent to remote machines. After TCPTV_KEEPCNT (default 
8) probes are sent, with no response, the (TCP)connection is dropped.

net.inet.tcp.always_keepalive - Assume that SO_KEEPALIVE is set on all 
TCP connections, the kernel will periodically send a packet to the 
remote host to verify the connection is still up.

therefore formula to calculate maximum TCP inactive connection time is 
following:

net.inet.tcp.keepidle + (net.inet.tcp.keepintvl x 8)

the result is in milliseconds.

therefore, by setting
net.inet.tcp.keepidle = 10000
net.inet.tcp.keepintvl = 5000
net.inet.tcp.always_keepalive =1 (must be 1 always)

the system will disconnect a call when TCP connection is dead for:
10000 + (5000 x 8) = 50000 msec (50 sec)

To make system remember these settings at startup, you should add them 
to /etc/sysctl.conf file

Solaris

For the list of available TCP settings:

ndd /dev/tcp ?

Keepalive related variables:
- tcp_keepalive_interval - idle timeout

Example:
ndd -set /dev/tcp tcp_keepalive_interval 60000

Windows 2000 and Windows NT

Search Knowledge Base for article ID 120642:
http://support.microsoft.com/kb/120642/EN-US

Basically, you need to tweak some registry entries under
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters




or

A Magnetic Mount for a Wireless Fast Charging Dock

I like the convenience of a charger for my phone in my car or by my desk at the office. The constant plugging and unplugging a micro-usb cord is a bit harsh though, a least from a first world problem perspective. I ran across a post on the XDA-Developers forum that described modding a Wireless Charger […]

The post A Magnetic Mount for a Wireless Fast Charging Dock first appeared on robotthoughts.




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Installation Notes for Kubuntu 18.10 on the Alienware 17 R5 Laptop

Before Installation Installing Kubuntu / Ubuntu on the Alienware 17 R5 Laptop NVME Drive To get the NVME drive or M.2 drive to show up as an installation candidate for the installer, you need to make a small BIOS change and modify two kernel arguments at boot time. First, boot into the BIOS on the […]

The post Installation Notes for Kubuntu 18.10 on the Alienware 17 R5 Laptop first appeared on robotthoughts.




or

Build PlatformIO on Windows Subsystem for Linux (Ubuntu)

I usually prefer running platformio from command line so I can stream the build process into my backup and recovery processes. With versioning, I can roll back to a know good working build. I am most often building Marlin firmware for my 3D print farm so there is a small example of the build commands […]

The post Build PlatformIO on Windows Subsystem for Linux (Ubuntu) first appeared on robotthoughts.




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bookoasis: The World In A Bookshop by infra-leve. My living...



bookoasis:

The World In A Bookshop by infra-leve.

My living room is starting to look like this actually…





or

How I delayed at least 25,000 people's journey to work this morning

This is not an exciting story, despite the title. But it’s true. And it happens to dozens of people every day, and is the reason why getting to work in London can sometimes take so long.

First, let me explain that this is not a story of me causing a fire alarm to go off, for anti-terrorist police to close a station for half an hour, or some dramatic incident that has left TfL seeking an ASBO against me.

This is a story that starts with a strap of a backpack. This strap, in fact:

This morning I caught a tube from Baron’s Court on the District Line heading East. Normally I change at South Kensington for a Circle Line to Moorgate, or hop off at Mansion House and walk up to the office through the City. This morning I had decided to stay on the District line until Blackfriars, and change there for a Circle line. It’s a man’s perogative, etc.

The tube this morning was very busy. During the Olympics it has on the whole been very quiet, but this morning it was the normal 8:15-8:45am peak time crush. I was stood right next to the door at the very front of the train, crushed in by about 20 other souls attempting to share the exact same square foot I was stood on.

At Victoria, as is often the way for the District Line, a lot of hustling and bustling went on as people fought their way out to the platform, and others tried to struggle onto the train. After around a minute, the doors closed.

Except for the one next to me. Looking down, it was jammed on my bag strap.

Swearing, I attempted to free it. It was jammed solid because the hydraulic pressure of the door was pushing against it, but not with sufficient force for the door to close. The guy next to me tried to help. The guy on the platform waiting for the next train also tried to help. Neither of us could free it. Moving it simply led to the door moving along a bit, keeping the strap jammed.

Then the sound of hydraulics releasing was heard, all the doors on the train went to open, and the driver climbed out of the cab. The release of pressure had allowed me to unjam the strap, and recover it into the train. The driver confirmed we were all fine, climbed back into the cab, closed the doors, and off we went.

I apologised to those around me for delaying their journey, even though the total delay was perhaps 60-90 seconds.

Then realised everybody else on the train was delayed, too.

Then a thought about queuing theory and a little knowledge about how loaded that line is with train traffic at that time of the morning hit me: I had delayed tens of thousands of people.

Let me explain how I worked this out.

The District Line is composed of rather large gauge trains. I estimate that conservatively, each train is capable of shifting 2,000 people during peak times. There were certainly at least 2,000 people on my train this morning. Yes, they are only 6 carriages each, but each is certainly capable of holding nearly 350 people, and frequently does. I’m prepared to revise my numbers down if shown evidence.

In addition, the District Line platforms are not just used by the District Line. They’re also used by the Circle line between Gloucester Road and Tower Hill.

A glance at any “passenger information display” on a platform along this part of the network during rush hour will tell you the mean time between trains is 1 minute. There are close to 60 trains an hour going along that piece of track during rush hour.

Because my train was delayed for over a minute, this must have caused the train behind it to be given a red signal. This in turn would have caused the train behind that to be given a red signal, and so on. This buffer effect would be dampened beyond Gloucester Road going West, because the Circle and District lines diverge, giving more time for the red signals to switch to green, meaning scheduled trains would not have to stop in an unscheduled manner.

However, there would have been at least - I think - 5 trains affected by this delay in addition to my own. So we’re now up to 12,000 people in total delayed by my bag strap jamming a door.

It gets worse.

I changed at Blackfriars to a Circle line train. I got off the train I had delayed, waited 60 seconds on the platform and got on the Circle line train immediately following it, obviously now delayed. Cautiously making sure my bag was far from any doors, I boarded aware this train was now at least 2 minutes late against schedule.

Satisfied at the figure I had come up with of around 12,000 delayed passengers, I had assumed I had done no more damage, until we got to Aldgate.

The tube system has a tendency to expect passengers always want to be moving all of the time. Any delay of more than a minute or two at a station is always explained via an announcement. As we sat at Aldgate, the driver announced we were being “regulated” by a red signal. Looking out of the window, I could see an East-bound Metropolitan line train crossing our tracks to head across to East London.

That’s when it hit me. We were “out of position”. The train was a couple of minutes late, and so the guys running the switching had decided to give priority to the Metropolitan Line train, and we were held for approximately 4-5 minutes.

Whilst this part of the Circle line between Aldgate and Tower Hill was not as busy as the District/Circle line Tower Hill back West, a 4 minute delay was enough to ensure that the train behind us was going to be red signalled waiting for us to clear the platform.

That would be enough for the train behind that to be stopped.

And that would be enough for the train behind that to be stopped, which would probably be on the shared part of the network. That would be enough to cascade across the whole part of that line back to Gloucester Road, causing delays to perhaps 12 trains in total.

By now the numbers per carriage were down a little as we were close to the end of peak, but there was probably at least 1,000 people per train out there. Rounding up for the few more probably still around the Victoria area, and we’re up to 25,000 people.

There’s obviously some fudging here - people boarding trains at the “correct time” for them, did not realise the train they were getting was in fact the one after the one they had expected, and they did not suffer any delay. But I also suspect that this effect wasn’t dampened until after the peak ended at around 9:30am, and there were people who boarded their trains at 8:30am or before still out there (it can take 60 minutes easily to get from the “end” of a line into central London), whose journey had taken at least a few minutes longer than normal.

I doubt many noticed. I doubt anybody cares.

But it did make me think about how queueing theory applies to real world problems, and how when TfL moan about people keeping coats, bags and belongings clear of the doors, or jamming the doors to squeeze on rather than wait 6 more minutes for the next train, that they might have a point.

If you cause a train to be delayed, you are not simply inconveniencing the dozen or so people glaring at you in your vicinity. Or the people on the rest of the train who would glare at you if they could. But in fact, you have a cascade effect down the rest of the network. Tens of thousands of people delayed, because you didn’t want to wait 5 minutes. Or because you didn’t keep an eye on your belongings near the door.

I’ll certainly be more careful in future.

The next time I’m sat waiting for a signal to clear or am told that we are “being regulated”, I’ll wonder about whose bag or foot was to blame, and how the numbers of people flowing through London make butterflies flapping their wings on the network capable of huge cascading effects on transport infrastructure.




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Reading Less, writing more. Or "How I learned to hate Twitter and Facebook"

I love knowing what my friends and family are up to. I love finding out about the latest thoughts going on within my peer groups. I enjoy reading many blogs, newsletter and emails. I used to regularly get over 400 emails a day including group/mailing list traffic, followed over a thousand people on Twitter and was friends with more than 250 people on Facebook. I subscribed to over 200 blogs. I read all of it, all the time.

Mix in LinkedIn, reddit, Hacker News and a few other corners of the web, and we’re suddenly talking about a lot of data flowing into my head.

I’m led to believe that some even value the contributions I make myself from time to time.

However, I’m about to start dialling all that down. I’ve made a start in some places, but over time I’m going to stop reading anywhere near as much short-form (twitter, Facebook, etc.), a little less medium-long form (blogs), and use the time to start reading longer form work again (books) and creating more.

The reason is not because of burn-out, cynicism or some other excuse: I’m not arguing that it’s all pointless, and I’m not being a Luddite. I just want to create more, and there are only so many hours in the day.

This was prompted by going back over my resolutions posted here in December, and realising I’ve made little progress:

  • I need to get my weight down. I’m finally prepared to do something about it.
I’ve been doing a lot of reading up on this in recent months. Worried that as I attempted to cut calories I actually gained weight, I decided to go back to the science the calorie-counting diets are based on and made a shock discovery: there is no science.
There is absolutely no evidence that calorie counting works. Not one experiment has been able to show that calorie-counting is successful.
Managing carbohydrates? Different story.
I’d like to write about this some more, and I’d like to share my diet in detail and provide some raw data almost “live”. Consider it a series of scientific experiments on one person done in public. I need to think about the details of doing this more, but this is one resolution that I need to kick up a gear on above any other.
  • I want to create more, so will aim to not go more than two or three consecutive days without working on something creative in 2012. It could be writing (here, for example), it could be code for a personal project, or it could be something I’ve never really tried before (music? art? Don’t know yet). I basically want to spend less time reading/consuming and more time doing stuff. David Tate provides excellent inspirationif you want to consider doing the same. I’ll try to document as much of that as possible here.
I have failed at this dismally. I mean, really, really, really badly. I get to be quite creative in my work, but that wasn’t the goal here. My goal was to be somebody who contributed more online than I took, and in that respect, I’ve failed dismally.
I have a lot of ideas in this regard as to how to correct this fault, but it’s going to take a few weeks of planning to commit to it. I know by reading less social network commentary, blog output and community websites, I’m going to have more time to do that planning, and also to create things.
I work long days, and have just a few hours a day in which to address this, so please be patient with me.
  • I’m going to try and shift from always being behind/late for almost everything going on in my life, to being early. I don’t know how I’m going to do this, but I suspect if I can pull it off, I’ll be calmer and happier as a result.

This, I am happy to report, seems to have actually happened for the most part. Public transport not withstanding - including my own self-sabotage - I tend to be where I need to be on-time (or early), far more than I was last year.

Back to the main point: by reading what’s going on out there, by trying out new apps, by listening to all these voices, I am feeling engaged and plugged in, but only as a consumer. The purpose of the Internet is not to simply consume but to create, amend, edit, destroy, vandalise and promote. Ideas, content, products, whatever.

Also, am I the only one who has noticed how exhausting this hosepipe of information can be on a daily - even hourly - basis? I’m tired of consuming. It’s worse than television - at least with television an editor or commissioner has attempted to do some curation.

So I’m not departing, I’m not shutting down accounts, I’m just going to read a great deal less online, to the point the relevant apps might disappear off my phone. In return, I should be able to produce a few new things to share. Watch this space!




or

"That's not a proper sport!" Oh yeah?

A couple of lovely people I know have suggested that some of the Olympic disciplines are not “proper sports”. This sentiment is one frequently echoed by compatriots of losers, stand-up comedians and miserable bastards the World over.

It has now seeped into the social consciousness and zeitgeist to the extent that many people mistakenly think “sports” are one thing - typified by physical endurance, stamina, or skill - and “games” are things anybody can do really, probably whilst having a pint at the same time.

Let’s put to one side that “the Olympics” are actually called “the Olympic Games” (or in French, “Jeux olympiques”), and just assume the “point” of the Olympics is to promote “sporting disciplines”.

Why do I feel certain that every single one of the Olympic disciplines is worthy of the name “sport”?

Even archery, which I reckon I could have a good bash at it with the right kit despite being a perfect example of how bad Guinness can be for your waistline, or boxing which is standing around and punching people when they didn’t even borrow that DVD off you in the first place.

Yes, I’d even include dressage where the horse is the one actually doing the moving about, whilst the “competitor” sits atop in a fine hat looking more English than a teapot in a red phone box (even when the competitor is French, which must be embarrassing for them).

All of these can be - and in the context of the Olympics, most definitely are - sports.

To explain, let’s just focus on what makes something nothing more than “a game”.

Any activity can be made into a game. All you need is a way to keep score and some rules to make sure the scores actually mean something. Staring at a wall: how long for without looking away? Making a cup of tea: judges could taste-test quality, or there could be speed trials. Having a nice sit down and a biscuit: how few crumbs can be counted on your lap afterwards?

Most games are obviously a bit more involved and preferably prefer people either getting naked or putting things onto a spring-loaded donkey (or both!), but the point is I could make a game out of writing this very post if I wanted. Or even this sentence. (4 words, 0.6 seconds, 100 words/minute, if you’re interested).

“Gamification” is a major social force in the web application industry right now, to the point where sitting in your office and pressing a button in an app on your phone can make you “Mayor”, which is why I don’t use FourSquare: I might become an annoying prat who asks for a third of a Londoner’s council tax to spend on bicycles and zip lines or whatever.

Games are obviously more fun when there is a degree of competition, and therefore the scores must be fairly comparable. You and I might decide to play pooh-sticks for example, and we will have a grand old time as I crush you and claim glorious victory and then we’ll go and get an ice cream or something. The fun is in me beating you without “cheating”. Or you usurping me and claiming a surprise victory, perhaps (like that’s ever going to happen, you fool), all whilst not kicking me in the head as I sing “We are the Champions”, etc.

This is a game: any activity at which there are some established rules allowing the participants to keep score, and where the point of the rules is to make different participants scores comparable with each other.

Cheating isn’t just “naughty” - it stops it becoming a game, because the scores are no longer comparable. If I turned up to pooh-sticks with laser-guided remote-controlled precision sticks with outboard motors on them, I can’t claim a fair victory when you’ve just picked up that stick with a leaf on it next to that weird moss on that rock, no not that one, that one over there, no, there you moron… yes, the bent one! 

Providing the game is fair then, I would argue that any game can become a sport. How? Other people caring about the outcome.

If whilst I am thrashing you at pooh-sticks, a small crowd appears and starts cheering one or the other of us on (hint: I’m very charismatic, they’ll be cheering for me mostly), then we have a sport. The number of people who care about the outcome or who want to have a go themselves determines how “sporting” it is. Once we start keeping World Records, or we meet regularly to do contest on a schedule we share with non-participants, and arrange ourselves into leagues, and perhaps start making money from the gullible fools who fawn in my pooh-stick abilities, then we have a moderately successful sport.

Sport is, I think, simply any game, where non-participants care about or are interested in the scores and who wins.

If the dressage, archery or boxing events at the Olympics, it’s pretty clear there were non-participants who cared about the outcome. In some cases, they really cared to the point where they flocked to Twitter, barely able to type through their blubbering tears about how wonderful and marvellous it is that somebody they’ve never met who happens to be considered by International Law to be a citizen of the same part of the World as them despite living 3,000 miles away, beat somebody who lives 300 miles away who they do not share such a close bond with due to them suffering the genetic disadvantage of being French.

So, here’s my cut-out-and-keep guide:

  1. In both games and sports, people keep score somehow
  2. In both games and sports, rules ensure the scores of different participants are fairly comparable
  3. In games only the participants care about the comparison, in sports there are non-participants who also care

If this still doesn’t make sense to you, think about what sports would become if nobody cared? Or even if the outcome wasn’t scored or measured? What exactly would those footballers be doing if nobody nobody cared about the score? What would the by doing if they didn’t bother keeping score? Just what is it that Usain Bolt would be proving by running really quickly if nobody was watching? Or some people were watching, but were not measuring how fast he was running?

So the next time you hear somebody say “that’s not a real sport”, despite there being a clear loyal following of non-participants, maybe point out that it might be an activity whose outcome they don’t care about, so that can mean it’s not a sport to them.

But to the participants and to their followers, and to the people around them, it is very much a sport. And what they’re saying is a smidge hurtful to all of them, even if it’s just pooh-sticks. So, you know, try not to say that. It makes you sound a little bit mean.




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Cheap remortgage deals read the small print

THE cheapest two-year fixed-rate mortgages in more than a year were launched last week, heading straight to the top of the 'best-buy' tables. But borrowers should not be dazzled by the headline rates and assess all-round value when picking a...




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Leeds remortgage package

Leeds Building Society is launching a new fixed rate mortgage in light of new research which has revealed that fixed rate mortgages accounted for over half of all loans in August this year. Leeds two-year fixed rate mortgage offers a...




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Leeds remortgage package

Leeds Building Society has launched a new Base Rate Tracker (BRT) mortgage at only 0.14 per cent above Bank of England base rate. The product, which is currently 4.64 per cent, also allows 10 per cent capital repayments each year...




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Charcol's remortgage deal for your big money pad

For borrowers with mortgages between £300,000 and £2 million, John Charcol has launched a market-leading remortgage deal. The 2 year tracker has a free valuation and free legals and is available up to 90% loan-to-value. Ray Boulger, senior technical manager...




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Fixed rate remortgage

Abbey is offering reduced rates on their two year fixed rate mortgage allowing the public to remortgage. Lal Tawney, Abbey's head of mortgage marketing, said: "For people that want to remortgage to Abbey, our two-year fixed rate has been slashed...




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Remortgage Woolwich News

Two-year fixed rate of 4.79% until 31 March 2008 thereafter reverting to Barclays Bank Base Rate, which is variable, currently 4.50% + 0.95% = 5.45%. The overall cost for comparison is 5.5% APR. Offers a non-disclosed valuation and either no...




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Cheltenham & Gloucester Remortgage offer

Cheltenham & Gloucester is launching a new mortgage range offering highly competitive fixed rate deals, fee-free remortgages The new range, available through intermediaries and branches of C&G and Lloyds TSB, includes a two-year loan fixed at 4.45 per cent and...




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Spain remortgages information

Spanish bank fees vary but are typically around 1% of the mortgage amount. They also charge around €500 for the mortgage valuation; stamp duty of 1.8% of the mortgage amount; and notary and registration fees of around 0.5% of the...




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Abbey Tracker Remortgage of 4.38%

Abbey has just released a two-year tracker mortgage offering a rate of 4.38 per cent it will cost you £699 you can remortgage up to £500,000, this remortgage is available up to 90 per cent loan-to-value. Barry Naisbitt, of Abbey,...




or

Direct Line remortgage

Direct Line has launched a remortgage package a two year fixed rate tracker mortgage will offer a rate of 4.79 per cent. Direct Line believes that people looking for a remortgage face in a dilemma about whether to take on...




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Navegadores en el Posicionamiento Web - ¿ Cual usar ?

¿Para que navegador diseño mi sitio? Parece difícil la pregunta, pero no, la respuesta es simple, PARA TODOS. Bueno, si usted se refiere a por que navegador se puede guiar par diseñar su sitio para que los robots de búsqueda lo vean bien, pues pruebe un Lynx... :-) si, en serio, creo que esa es una vista más cercana de cómo ven los robots de búsqueda los sitios, pero bueno, hablando realmente en serio, la realidad es que....




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Penalizaciones de los Buscadores al mal trabajo de Posicionamiento

El trabajo SEO en los primeros años de su desarrollo se caracterizó por el uso de diversas técnicas dirigidas a "engañar" a los robots de búsqueda. Esas técnicas fueron dejando de funcionar a partir del desarrollo de los robots de búsquedas que cada día son mas sofisticados y son capaces de detectar desde textos invisibles para el usuario hasta la existencia de textos no legibles por personas ...




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Registro en Buscadores - ¿Manual o Automático?

El registro en los principales buscadores debe ser manual, de forma tal que se puedan cumplir todos los requisitos de la forma más óptima, lo cual con una herramienta automática seria difícil de lograr. Además ya en varios no es posible la inclusión automática pues uno de los pasos del formulario a llenar solicita la escritura de una cadena alfanumérica que se muestra en forma de imagen ruidosa la cual ...




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Densidad e identificación de las palabras claves por parte de los buscadores

Un abuso de frecuencia en la palabra a menudo es interpretado como spam y es penalizado. Debemos mantener siempre el contenido de las Webs legible para las personas, pues además del tema de las penalizaciones de contenidos hechos solo para buscadores debemos tener en cuenta que el objetivo final de nuestras Webs e llegar a los usuarios y ofrecerles contenidos de calidad que ...




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Manejo de errores 404 - Implementación

¿Como logramos el manejo de los errores 404 ? Para no depender de acciones por parte de los administradores del servidor donde tengamos nuestra Web, o de las posibilidades que ofrezca el panel de control del servidor de hosting, podemos nosotros mismos colocar la siguiente línea en el fichero .htaccess en el caso del Server Web Apache...




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El manejo de los errores 404 ante los buscadores

Como realizar el manejo de los pedidos a páginas inexistentes en nuestra Web ¿? Esos pedidos usualmente responderían con un error 404 con lo que se pierde una visita al sitio, e igualmente en el caso de un robot de búsqueda, lo cual podría ser síntoma incluso de una pagina que existía anteriormente que eliminamos y esta estaba indexada por un buscador. ¿Perder una visita al sitio? De ninguna manera...




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La accesibilidad y su aporte al Posicionamiento Web

La accesibilidad ayuda al buen posicionamiento Web. Persigue, entre otros, el objetivo de que ningún usuario este discriminado ante el acceso y asimilación de los contenidos, ya sea por problemas físicos (visión ejemplo), a causa de usar navegadores con pocas capacidades, poseer conexiones muy lentas, personas sin ratón, con pantallas pequeñas o de baja resolución, pantallas en blanco y negro, etc. ... ¿Como lograr esto? ...




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Google Sandbox, Teoría y Efecto. Como salir de Google SandBox.

¿Qué es el efecto o teoría de Google Sandbox? Es un filtro que se supone que exista y que esta siendo aplicado a los nuevos sitios Webs publicados. Este filtro impide que ante determinadas búsquedas las páginas del sitio alcancen las primeras posiciones, en relación con lo competitivas que sean las palabras clave de la búsqueda. ¿Como salir del sandbox? Algunas alternativas...




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RSS y los buscadores, importancia para el posicionamiento

Desde el punto de vista del posicionamiento Web los canales RSS nos ofrecen varias ventajas. Una es que cuando es incluida la información del canal RSS en una Web remota esto proporciona un enlace a la Web original con la correspondiente ganancia de...




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Importancia de las Estadísticas Web para el Posicionamiento en buscadores

Como usar las estadísticas para el posicionamiento Web? La evaluación de los resultados del posicionamiento Web es un paso requerido en dicho trabajo. A través de la evaluación se detectan que estrategias están dando resultados, cuales no, y se redirige el trabajo de posicionamiento según las necesidades. El estudio de las palabras claves y frases de entradas, y llegar a conocer con cuales hemos aparecido en las primeras posiciones de los buscadores, así como ...




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Aplicaciones y Servicios de Estadísticas para el Posicionamiento en buscadores

Las herramientas mencionadas de análisis de registros no siempre logran diferenciar bien cuando un acceso fue generado por un robot de búsqueda, otro tipo de software, visita de usuario y otros tipos de accesos, puesto que la variedad de estos es muy grande. De ahi surge la necesidad de poder separar eficientemente las estadísticas del acceso de usuarios del resto de los tipos de acceso, pues para el análisis con miras al posicionamiento Web resulta de interés manejar estos datos por separado, ya que cada uno representa...




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Valor del ranking de Alexa en la promoción Web

La información de tráfico de Alexa es a menudo un valor llamativo cuando deseamos analizar el éxito de un sitio por la cantidad de visitantes que posee. Sin embargo este es un valor al que se le concede en múltiples ocasiones más importancia de lo que realmente debería representar, o más bien se podría señalar que no siempre es interpretado de forma correcta. ¿Como lograr aparecer en el ranking de Alexa ? ¿Como mejorar el raking en Alexa? ¿ Como interpretar y usar el valor del ranking de Alexa ? Estas son preguntas comunes...




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Domain Name Information

Easy to understand information about domain names. Want your own domain name? Find out how to choose a good one here.






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New Realtor.com Agent Beta Profiles now Live in Austin

I attended the Presentation in Austin this week announcing the Beta rollout of Realtor.com’s new Agent Profiles. Austin is the only city in the US with this live, though it will soon also be turned on in the state of Rhode Island. Though not fully baked, I’ve set up my profile. The “Sold Listing are not yet populating, but should be on the map by mid October. There will also be a Team Profile. Here is what it will look like when viewing a map of Sold Listings in Austin. Pretty cool, right? Are Realtors happy about this? Many are not. The Realtor online forums are ablaze with ignorant complainers, moaning and griping about this, and how it’s “unfair” to populate Realtor profiles or Sold Maps with actual closed sales because it makes the Newbies and part timers look bad. Those of you agents complaining are missing some important data ... Read more



  • Austin Real Estate
  • Business and Technology

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Austin Affordability: The High Cost of Living Apart

In an increasingly “unaffordable” Austin, it occurs to me that many of us could live way cheaper if we could just get along and live in extended family groups or roommate groups. I’ll use my own family as an example to explore this CRAZY idea for curing Austin’s affordability problem. Sylvia and I live in a home in SW Austin with a $3,000/mo mortgage. Our utilities average $250/mo for everything, plus yard care of $80 per month, and of course repairs and maintenance as needed. We intentionally downsized to this home from Westlake, because we want to live more “affordably” and we no longer needed to live in Westlake Eanes ISD after our girls graduated high school. My mom, in her 70’s, lives three blocks away in a home I purchased as investment (but for her to live in). I charge her $1,200/mo rent (market rent would be $2,000, my payment/cost ... Read more



  • Austin Real Estate
  • Living in Austin

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Should you keep your Austin rental home or sell?

It’s the start of 2016 and already I’ve received a few inquiries from my investor clients wondering whether they should hold on to their rental property, or sell this year. It’s a conversation I have multiple times with multiple clients each year, and it’s a question Sylvia and I sometimes ask ourselves about our own rental property. Especially given the appreciation gains of the past 5 years in Austin. So this article will walk through some of the questions you might ask yourself when contemplating whether to sell your real estate asset, based on how I look at the question with my own rental properties. The first questions to ask yourself are: 1) Do you need the money? and 2) What will you do with the money? I normally don’t make it past those two questions, because the answers for me are are “no” and “I don’t know”. For most, ... Read more




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Be Cautious in Picking your Austin Realtor

New York Times columnist Paul Sullivan recently wrote about this DJ posing as a financial advisor. It was one of those setups like you see on TV. They removed his dreadlocks and body piercings, put him in a suit, taught him some basic scripts like “a 401K is the way to go“, and had him meet with actual financial clients to discuss their financial needs and how he can help. When he went for the “close”, all but 1 client said they would work with him. He had zero experience, no qualifications (though I’ll bet his conversational skills helped). But since he looked the part and knew some buzz phrases, and the prospective clients didn’t know the right questions to ask, he was able to win their trust just by being nice and personable. The point of the experiment was to illustrate that the vast majority of financial clients do ... Read more



  • Austin Real Estate

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Is Live Answer Worth the Investment for Businesses?

As the owner of a business where 100% live answer is not possible or cost effective, I do receive my fair share of angry voicemails from people wanting to talk to a human right now. It’s kind of interesting actually. I received this one just recently. Many would just delete it, as I usually do with rude voicemail tirades. We receive all manner of unbelievably incoherent, garbled and plain crazy voice messages from people. But as a blunt-spoken no-BS type of person myself, I appreciated this voicemail. I played it proudly for my wife. And I played it for my assistant, “listen, … this is great!” And now I’m blogging about it. The caller scolds me with the blunt, to the point assertion, “if no one is available you get no sales“. Listen to it again yourself. It’s perfect! It’s the kind of communication I respect. Clear, concise, to the ... Read more



  • Austin Real Estate
  • Business and Technology

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How to Save for a Home Purchase In Austin TX

Historically in Texas, homes have appreciated at 4.5% annually (according to Texas A&M Real Estate Center). This is the expected appreciation we use when making real estate investment assumptions as well. For example, a $200,000 home would increase in value to $209,000 if appreciation was 4.5% for that year. If you wanted to save for 1 year a 5% downpayment for a $200,000 home in Austin, you would save 5% of the future value of the home, not the current value. You would save for a $209K purchase, $10,450, not $10,000, if saving just for 1 year. Starting in about 2012, homes in Austin have appreciated at a much greater rate, closer to 8% annually. This makes it harder to save for a down payment, like chasing a vanishing horizon. Also, there are no more $200,000 homes. The median value of a home in Austin is now about $400,000 if ... Read more




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Understanding the Recent NAR Commissions Lawsuit: A Realtor’s Perspective

The recent lawsuit involving the National Association of Realtors (NAR) and subsequent news coverage have sparked significant discussion within the Realtor community. I’d like to take this opportunity to share my perspective on the home buying and selling process, how Realtors are compensated, and the concept of ‘Uncompensated Effort.’ Realtors earn what is known as a ‘Success Fee.’ Essentially, we provide all our services for free until the transaction is closed and funded, at which point we receive a commission. Efforts that do not result in a closing are what I call ‘Uncompensated Effort.’ Every Realtor incurs this overhead, and it’s an integral part of a system that benefits consumers. Both buyers and sellers appreciate this system because it allows them to access services at no cost, even if they never purchase a home or their property doesn’t sell. For example, a buyer might contact an Austin Realtor based on ... Read more




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Landlords and Property Managers Rejoice!

The Supreme Court’s recent decision to strike down the “Chevron decision” heralds what could be the end of the absurd Emotional Support Animal (ESA) scams that have plagued landlords and property managers since HUD administratively stretched Fair Housing laws to include anyone claiming “anxiety” or “whatever”. This administrative rule—not a law—created a loophole that tenants have widely exploited. By purchasing a bogus $50 “doctor’s note” online, tenants can present themselves as “disabled” applicants and scare landlords and Property Managers into granting their “request for reasonable accommodation” for their 100-pound pit bull, under threat of a HUD lawsuit for “discrimination.” We are not talking about legitimate Service Animals, such as seeing-eye dogs for the blind or extensively trained PTSD alert dogs for combat veterans. Those are 100% legitimate disabilities and those specially trained animals should never be declined by any landlord, under actual law. Instead, we’re addressing self-proclaimed “disabled” tenants who ... Read more



  • Austin Real Estate