These demonstrations are usually very local and rarely degenerate into riots, but they reflect the exasperation of Algerians faced with problems of cultured pearl jewelry housing, the state of roads, and gas and electricity cuts, reported regularly by the local media.

"The riots of the past years express the outrage of distraught young people hard-hit by unemployment, exclusion and despair," commented Moamed Hachemaoui, a sociology professor quoted by the daily El Watan.

Hachemaoui said there was little dialogue between the inflatable water games state and the people.

Unrest is a reaction to favouritism by the state and its failures, and "at the same time is the symptom of a political crisis: the political regime causes the riot, which is an extreme and violent means of 'speaking out'," he added.

Confronted with protest, the Algerian authorities point out that a million homes were built in the past five years, or are nearing completion, while more than a million further homes due by 2014.

The 2010 budget, being prepared for parliament, sets aside €10bn for the freshwater pearl pendant "social policy of the state" and a further €10bn for "improving the living conditions of the population", notably with health infrastructure, habitat and town planning, and social services like water, gas, electricity and urban transport.

Not far from where the youths were stoning police, at pearl jewelry wholesale least three of whom were injured according to an AFP correspondent, the shops were open and a throng of people were going about business as usual.

Obtaining an apartment is difficult and frequently leads to protests in the north African country, whose population has tripled since independence in wish pearl oyster 1962, to reach about 35 million. Young couples have a particularly hard time in finding suitable accommodation.

On Sunday, near Ouargla, 800km south of Algiers, residents of the small community of Rouissat blocked roads with stones and burning tyres to protest against damage caused to their environment by major public health works on the water supply.

Trouble was also recently reported at Annaba, the main town in freshwater pearl earrings the far northeast of Algeria, as well as at Tizi Ouzou in the Kabylie highlands and in Boumerdes, east of Algiers.

Algiers - Clashes that pitted police against gemstone jewelry stone-throwing youths from an Algiers slum this week are characteristic of the confrontations that take place in Algeria over poor living conditions.

On Monday and Tuesday, hundreds of youths from the Algiers slum district of Diar Echems, supported by their parents, clashed with riot police, stoning them from a rise in the road that leads to their shabby homes.

The young people were protesting at their families' needing to wholesale pearl necklace sleep 10 or more to a room, bad housing and the other daily miseries in a district not far from an administrative region with posh banks and modern offices.

One of the reasons for the clashes, according to press reports, was that the Algerian authorities were planning to ban the building of shanties on a football ground in the region.

In Algeria, the attribution of state housing is a freshwater pearl ring fraught process.

Foreign navies have been deployed off the Gulf of Aden since the turn of the year and have operated convoys as well as setting up and shell pearl jewelry monitoring a transit corridor for ships to pass through vulnerable points.

But their forces have been stretched over the vast expanses of water including the Indian Ocean, leaving vessels vulnerable.

"The attacks off the east coast of Somalia is a completely different challenge," Mukundan said. "It's a huge expanse of water - very difficult really to pearl jewelry control and monitor."

The IMB said there were 324 attacks globally in the year to October 20 with 37 vessels hijacked and 639 hostages taken versus 194 attacks, 36 ships hijacked and 631 hostages in the same period in 2008.

Mukundan said the Gulf of Guinea also continued to be a high risk area with attacks focused on Nigeria's oil producing area as well as in anchorages around the port city of Lagos.

He said there were 21 attacks to October 20, adding that inflatable slides represented around 35% of the total number as many attacks were not reported partly due to fear of reprisals.

"Pirates in the Gulf of Guinea will aim to injure or kill crew members which they don't in Somalia and that is a key difference," he said.

Pottengal Mukundan, director of the London-based IMB, told a piracy conference there were 43 attacks and 6 hijackings involving Somali pirates from June to freshwater perl jewelry October, down from 57 attacks on ships and 23 hijackings in the same period in 2008.

In the second quarter of 2009, which was the peak, there were 140 attacks and 23 hijackings.

The monsoon season, which ended in September, curbed pirate attacks as high seas prevented gangs from using small skiffs.

Mukundan said navies had been proactive in the  sterling silver jewelry Gulf of Aden during the period. "It is the presence of the navies which have played a very key role in avoiding these attacks," he said. "I think it is fair to say they have been very successful.

"The other thing is that the (ship) masters are now prepared to take aggressive action to prevent these pirate skiffs from coming close alongside -  they are not giving way easily."

Mukundan said measures taken by the Somali region of Puntland to freshwater pearl jewelry prosecute pirates handed over to them had helped.