Study finds marijuana use leads to brain development in rats

Saturday, October 15, 2005

In the November issue of the Journal of Clinical Investigation,researchers announce that they have found that cannabinoids promoted a generation of new neurons in rats’ hippocampi. The study held true for both a plant-derived and a synthetic cannabinoid. The hippocampus is a part of the brain that contributes to learning and memory. In particular, it has been shown that the hippocampus is essential for the formation of new episodic memories.

“This is quite a surprise, chronic use of marijuana may actually improve learning memory when the new neurons in the hippocampus can mature in two or three months,” said Xia Zhang, with the Neuropsychiatry Research Unit of the University of Saskatchewan.

“Our results were obtained from rats, and there’s a big difference between rats and humans,” added Zhang, “So, I really don’t know yet if our findings apply to humans. But our results indicate that the clinical use of marijuana could make people feel better by helping control anxiety and depression.”

Zhang and his co-workers performed behavioral tests on two purified cannabinoids. The test results indicated that these two cannabinoids have anti-anxiety and antidepression-like effects in rats that may depend on the ability of cannabinoids to promote the production of new neurons in the hippocampus. Marijuana contains a complex mixture of chemicals including cannabinoids and may have somewhat different behavioral effects than the purified cannabinoids tested so far.

Previous studies examining the effects of cannabis have highlighted negative aspects of the drug’s use, such as short term memory difficulties, increased heart rate, nausea, and (in a very small percentage of people) hallucinations. Long term studies about cannabis use tend to be controversial as the data is seen to be biased or flawed. The most agreed upon effect of long term cannabis use is lung damage. However, proponents argue that the correlation between cannabis consumption and lung cancer is misleading suggesting that cannabis use may correlate with tobacco use or that the data is not being properly analyzed.

Monday, December 15, 2008

Somalia’s parliament overwhelmingly voted Monday to keep Nur Hassan Hussein as their prime minister, blocking President Abdullahi Yusuf Ahmed’s attempt at dismissing the prime minister and his “corrupt, inefficient” government.

President Yusuf announced his motion to dismiss Hussein on Sunday, saying his government was “unable to perform its duties” in matters such as dealing with the Islamic militants who have taken over most of the country. The latest dispute between the two involved efforts to reconcile with the Alliance for the Re-liberation of Somalia (ARS), the country’s main opposition group. The UN-sponsored peace process has been decried by Yusuf as dealing with terrorists.

Hussein countered that the president had no authority to strip the prime minister of his post, and that the transitional federal charter required the approval of parliament for such an action. “The president was speaking in his usual personal capacity, contrary to the rules and regulations,” Hussein said prior to the special parliamentary session in Baidoa.

Despite Yusuf’s hope that the parliament would endorse his decision, members of parliament were strongly supportive of Hussein’s government, with 143 members recognizing the government’s legitimacy, 20 rejecting its legitimacy and 7 abstaining. “Therefore the government of Hassan Hussein is legitimate,” said Aden Mohamed Nur, the parliamentary speaker.

Hussein, whom Yusuf appointed little more than a year ago after the resignation of Ali Mohamed Gedi, had previously survived a vote of no confidence in September, when he faced accusations of embezzling state funds.

“The only obstacle in front of my government was the president,” Hussein told members of parliament after the vote, “and since I have the confidence of the MPs I hope it will be effective henceforth.” Yusuf had no immediate comment on the vote, but he had previously stated he would comply with parliament’s decision if they chose to block his dismissal.

The relationship between the president and prime minister has grown increasingly strained over the issue of Islamic militancy. Yusuf has blamed the prime minister for the instability plaguing the politically fragile state, while Hussein has accused the president of trying to “sabotage” peace efforts between the transitional government and the ARS. Fighting between the Islamic opposition and Somali-backed troops from Ethiopia, the African Union, and the UN has killed thousands of Somalis and displaced millions.

Jean Ping, chairman of the African Union Commission, said the dispute within the transitional government has the potential of undermining efforts for “further reconciliation, peace, and stability in Somalia.” The UN also issued a statement condemning the dispute, and demonstrators gathered in the streets of Mogadishu to denounce the president’s move.

Although moderate Islamists from the ARS have agreed to enter into reconciliation talks, hardliner insurgents have rejected the attempts at peace and continue to take over towns in the central and northern regions of Somalia. Since the fall of the Islamic Courts Union, organizations like Al-Shabaab have become leading insurgent groups. A spokesman for Al-Shabaab told reporters on Sunday that they intend to impose Sharia law on all of Somalia, and that a peace deal would never be accepted.

Thursday, October 20, 2005

Australian shadow minister for work, family, youth, and community, Tanya Plibersek, gave a speech today on poverty as part of Anti-Poverty Week 2005. During the speech she criticised the government in a number of areas, including not committing to the UN Millennium Development Goals, the proposed industrial relations legislation, and the governments funding of services for the homeless.

Anti-Poverty Week runs from Monday 17th to Friday 21st October, and is derived from the United Nations International Day for the Eradication of Poverty on October 17th. Shaun Mortimer, the coordinator of Anti-Poverty Week at UNSW, said that the week was about “creating awareness and finding solutions to the plight of those living in poverty all around the world.”

Ms Plibersek said that Australia is not doing enough to help those in poverty overseas. She said that Australia currently gives 0.28% of its Gross National Income in foreign aid, however this is far short of the United Nations target of 0.7%.

“The Australian government is refusing to commit to the 0.7% target,” she said.

The UN development goal states that governments should reach the target by 2015. Labor has committed to meet the target, but the government has not.

“Labor is committed to the 0.7% target. In the interim, the government should be spending 0.5% of GNI,” Ms Plibersek said.

Shadow Minister Plibersek accused the government of weakening Australias commitment to the Millennium Development Goals. The goals were agreed to in 2000 by all 191 member states of the United Nations. There are 8 goals, which signatory states have committed to work towards. The eight goals are:

1. Eradicate extreme poverty and hunger
2. Achieve universal primary education
3. Promote gender equality and empower women
4. Reduce child mortality
5. Improve maternal health
6. Combat HIV/AIDS, malaria, and other diseases
7. Ensure environmental sustainability
8. Develop a global partnership for development

Ms Plibersek said that Australia signed on to the goals, but is now not honouring that commitment, and is attempting to reduce the impact of the goals in an attempt to win the favour of the United States.

“We signed on to the millennium goals,” she said.

“In it’s rush to be popular with the US the government went along with watering down the millennium goals”

Shadow Minister Plibersek strongly criticised the governments proposed industrial relations legislation. She argued that the proposed changes will disproportionately affect already vulnerable people such as single mothers, and push working people into poverty.

“Industrial relations changes will see poverty worsen. It will increase the number of working poor,” she said.

Speaking about the governments hypthetical worker, “Billy”, used in promotional material, Ms Plibersek said individual workplace agreements will result in lowered working conditions for all workers. She also claimed that if a working person is paid a wage that does not provide them with enough resources to live, they will need to depend on government services such as income support, and therefore taxpayers will be subsidising the low wages.

“If Billy can not earn enough to live, then taxpayers are effectively subsidising business,” she said.

“If the system has no minimum standards it will drag everyone down. Unions have fought against this for over a century”

Ms Plibersek spoke about the problem of poverty in Australia. She said that 2.4 million people in Australia are living below the poverty line, and 1 million of them have jobs. She also argued that wealth inequality is getting worse.

“We have a nation now more divided than ever. The rich are getting richer and the poor are getting poorer,” she said.

Ms Plibersek felt that this situation was unnaceptable, and that the solution was only a matter of will.

“I don’t think we have to accept that people will always be poor. It is a situation we allow,” she said.

She also criticised the government for inadequately funding services for the homeless, and said that many homeless people who wanted help were unable to find any. Ms Plibersek argued that women escaping domestic violence were especially affected by this situation.

“We turn away 1 in 2 people who approach homeless services for help,” she said.

Ms Plibersek also condemned what the government describes as the “skills shortage”, saying that there are lots of Australians willing to gain skills, but are unable to get places in training institutions.

“We turn 20,000 people away from TAFE and University each year,” she said.

Thursday, December 3, 2009

FIFA, the world governing body for association football, yesterday announced it was setting up a working group to conduct an inquiry into the introduction of assistant referees and technology into the world game, in the wake of the reactions to the controversial handball committed by French captain Thierry Henry during the 18 November France vs Republic of Ireland qualifying play-off game for the 2010 World Cup.

Yesterday, at the request of FIFA President Sepp Blatter, FIFA held an emergency meeting of its 24 member Executive Committee in Cape Town, to look into various issues which had recently affected the world game, including the Henry handball.

After the meeting, FIFA announced it will set up an inquiry to investigate the introduction of goal line technology and the global experimentation of using additional referee’s assistants to officiate during a match, already being trialled in Europe. FIFA did not however take the widely expected action of announcing there would be extra assistants in place for the upcoming 2010 World Cup, stating this was “too soon” to be made possible. Blatter also re-iterated his long-standing opposition to the adoption of video refereeing used in many other sports.

Blatter confirmed yesterday that Thierry Henry would be investigated by the FIFA Disciplinary Committee. Blatter also apologised to the FAI for his handling of their request to become the 33rd team at the 2010 World Cup.

There was a worldwide reaction after the Henry handball incident, which was missed by the referee Martin Hansson, with FIFA coming under pressure to make changes to avoid such a recurrence.

Henry’s illegal handball had led to the decisive goal being scored in the game by William Gallas, which saw France qualify for the World Cup ahead of the Republic of Ireland. The Irish football federation (“FAI”) first called on FIFA and the French for a replay, but this was rejected by FIFA. They later requested to be allowed to be given an extra place at the World Cup.

Yesterday, Blatter appealed to all players and officials that would be appearing in the upcoming 2010 World Cup to observe the principles of fair play. Henry had been criticised for admitting the handball after the game, but not informing the referee at the time.

File:2014 FIFA Announcement (Joseph Blatter) 6.jpg

Blatter said of the crisis in refereeing in the world game that:

The committee was of the opinion that we are at a crossroads: where shall we go with refereeing in the future? The game at the highest level is so tense that it is impossible for one referee and his assistants to see everything…The executive committee came to the decision that the referee is not any longer consistent with the quality and the speed of the game, and the interest of television and 32 cameras as we will have in the World Cup

To address these issues, FIFA announced they were going to set up a committee of inquiry to “look at technology or additional persons”. Blatter confirmed the inquiry would involve a cross section of FIFA personnel, involving the referee, football, technical and medical committees.

On the subject of assistant referees, FIFA said:

… the Executive Committee expressed its support for the current experiment of including two additional referees behind the goal lines. However, the committee stressed that it would be too soon to implement this new system at the 2010 FIFA World Cup South Africa

Blatter said FIFA was not ignoring the ongoing trials of extra assistant referees, which would continue in the Europa League into the 2010 knock-out stages, but the executive was of the opinion that with these trials only occurring on one continent, any experiment should “be carried out globally” before being adopted in a World Cup, and that the six months remaining until the 2010 World Cup starts was too short a time to prove any such system. The 2010 tournament, to be held in June and July, would instead remain with the normal FIFA appointed officiating team consisting of four officials led by the match referee.

On the issue of what types of technology might be investigated, Blatter confirmed that two companies looking at goal-line technology were due to report to the rule-making International Football Association Board (IFAB) in March. According to AFP, the meeting also ‘ruled out’ the adoption of the type of video refereeing as used in rugby, cricket and tennis.’, while Blatter stated such a system would ‘damage the flow’ of the game and “take away talking points”.

FIFA confirmed the FIFA Disciplinary Committee would “examine the case of Thierry Henry related to the play-off match”. Blatter said:

I have not said that Thierry Henry will be punished, I have said that Thierry Henry will be examined by the disciplinary committee of FIFA”, but he added “it was a blatant unfair playing and was shown all around the world, but I don’t know what the outcome will be, let them make the decision. Fair play must be maintained in our game

No timetable was given for when the Disciplinary Committee, headed by Swiss lawyer Marcel Mathier, might make their decision on Henry. According to the Associated Press, the committee has the ‘authority to impose a one-match suspension on Henry, which would take effect at the start of the World Cup in June.’ According to the BBC, there was no certainty that Henry would even be banned if found guilty.

After FIFA rejected an Irish request for a replay of the game, the FAI had asked Sepp Blatter to privately raise the issue at the FIFA meeting of whether the Irish could be entered into the 2010 World Cup as a 33rd team. According to the BBC, the FAI ‘knew all along that there was very little chance of their request being granted but had decided to make it anyway on principle’. The FAI withdrew it before the meeting, after Blatter made their request public during his opening address of the Soccerex conference in Johannesburg on 29 November. Blatter yesterday apologised to the FAI for how he had handled their request, saying:

In this connection I would like to express my regrets – my regrets to a wrong interpretation of what I have said in the Soccerex. I have only announced they have asked it, but the presence in the Soccerex they don’t took it very, I would say, seriously. So I regret what I have created and especially towards the Irish Football Association, I am sorry about these headlines going around the world. Contrary I have nothing against the Irish, they were very sporting people when they came to FIFA and it is a pity that it has been now communicated in this way. Sorry again.”

Thursday, February 13, 2014

Thursday, February 24, 2005

A paste containing synthetic tooth enamel can seal small cavities without drilling. Kazue Yamagishi and colleagues at the FAP Dental Institute in Tokyo say that the paste can repair small cavities in 15 minutes.

Currently, fillers don’t stick to such small cavities so dentists must drill bigger holes. Hydroxyapatite crystals, of which natural enamel is made, bond with teeth to repair tiny areas of damage.

Yamagishi and colleagues have tested their paste on a lower premolar tooth that showed early signs of decay. They found that the synthetic enamel merged with the natural enamel. The synthetic enamel also appears to make teeth stronger which will improve resistance to future decay. As with drilling, however, there is still the potential for pain: The paste is strongly acidic to encourage crystal growth and causes inflammation if it touches the gums.

The paste is reported in the journal Nature.

Friday, February 12, 2010

British fashion designer Alexander McQueen has died at the age of 40. He was found dead inside his residence in London, England yesterday.

The Metropolitan Police said they are not treating the death as suspicious. A spokesperson for the police force said, “[w]e were called by London Ambulance Service at about 10.20am this morning to reports of a man found dead at an address in Green Street, W1. He is believed to be 40 years old and from London. Next of kin have been informed, however we await formal identification before releasing the name of the deceased.” According to reports, McQueen committed suicide by hanging, however this has not been confirmed.

Between the years of 1996 and 2003, McQueen received Fashion Designer of the Year four times. He was also given a CBE by Queen Elizabeth II in 2003. The fashion designer had a new selection of clothing, entitled “McQ”, that was expected to be shown on Thursday; the show has now been cancelled. Alexander’s mother Joyce died earlier this month. In response to this, McQueen placed a message on his Twitter page which said “RIP mumxxxxxxxxxxxxxxxxxxxxxxxxxxx.” Isabella Blow, who assisted in making McQueen famous, killed herself in 2007.

Yesterday, a statement was released from McQueen’s company headquarters stating “On behalf of Lee McQueen’s family, Alexander McQueen today announces the tragic news that Lee McQueen, the founder and designer of the Alexander McQueen brand, has been found dead at his home. At this stage it is inappropriate to comment on this tragic news beyond saying that we are devastated and are sharing a sense of shock and grief with Lee’s family. Lee’s family has asked for privacy in order to come to terms with this terrible news and we hope the media will respect this.”

Thursday, October 22, 2020

2020 Melbourne Lord Mayor candidate Wayne Tseng answered some questions about his campaign for the upcoming election from Wikinews. The Lord Mayor election in the Australian city is scheduled to take place this week.

Tseng runs a firm called eTranslate, which helps software developers to make the software available to the users. In the candidate’s questionnaire, Tseng said eTranslate had led to him working with all three tiers of the government. He previously belonged to the Australian Liberal Party, but has left since then, to run for mayorship as an independent candidate.

Tseng is of Chinese descent, having moved to Australia with his parents from Vietnam. Graduated in Brisbane, Tseng received his PhD in Melbourne and has been living in the city, he told Wikinews. Tseng also formed Chinese Precinct Chamber of Commerce, an organisation responsible for many “community bond building initiatives”, the Lord Mayor candidate told Wikinews.

Tseng discussed his plans for leading Melbourne, recovering from COVID-19, and “Democracy 2.0” to ensure concerns of minorities in the city were also heard. Tseng also focused on the importance of the multi-culture aspect and talked about making Melbourne the capital of the aboriginals. Tseng also explained why he thinks Melbourne is poised to be a world city by 2030.

Tseng’s deputy Lord Mayor candidate Gricol Yang is a Commercial Banker and works for ANZ Banking Group.

Currently, Sally Capp is the Lord Mayor of Melbourne, the Victorian capital. Capp was elected as an interim Lord Mayor in mid-2018 after the former Lord Mayor Robert Doyle resigned from his position after sexual assault allegations. Doyle served as the Lord Mayor of Melbourne for almost a decade since 2008.