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Australia: Sydney’s Finest Asian Australian Students Still Missing Out On Leadership Roles

Australia: Sydney’s Finest Asian Australian Students Still Missing Out On Leadership Roles

Australia/Mayo de 2016/The Bellingen Shire Courier Sun

Resumen
Durante los últimos 20 años consecutivos, una escuela secundaria de Sydney ha sacado los mejores resultados de HSC en el estado. También es una escuela donde hasta el 80 por ciento de los estudiantes provienen de un fondo idioma que no sea inglés, la mayoría de ellos procedentes de familias asiáticas, según el Departamento de Educación de Nueva Gales del Sur.

For the past 20 years in a row, one Sydney high school has taken out the top HSC results in the state.
At James Ruse High in Sydney’s north-west, an ATAR of above 99 is so expected that it became its own satire song.
«100 ATAR, 100 ATAR, 100 ATAR,» year 12 students rapped in a take on Psy’s Gangnam Style. «99.95, not good enough».
It is also a school where up to 80 per cent of students come from a language background other than English, most of them from Asian families, according to the NSW Department of Education.
And yet, the statistics show that despite students of Asian origin dominating the academic scale at schools like James Ruse Agricultural High around the country, few rise to the top of the political, business and academic pile.
Australians of Asian descent make up to 12 per cent of the country’s population but only four members of the federal Parliament. Of the 17 government departments only one counts a leader of Asian descent as its head.
The statistics are similarly damning in the private sector. Only 1.9 per cent of executive managers and 4.2 percent of directors come from Asian backgrounds, according to a 2013 Diversity Council Australia study.
At the entry level, discrimination, conscious or unconscious, is endemic. On average, a Chinese person must submit 68 per cent more applications to gain employment than a person of Anglo-Saxon descent, according to a 2011 study from the Australian National University.
«For 30 years, James Ruse has been pumping out very clever Asians,» said University of Sydney vice-chancellor Michael Spence. «Where are they?»
For Dr Spence, self-interest is a powerful incentive. His newborn son, Ted, is half-Korean. His five children from a previous marriage are of Anglo descent.
«I want to make sure that he has much opportunity as my other children,» he said. «If you say mathematician you probably think east Asian in Australia – if you say leader, you probably think white man.»
«We are only now beginning to say that there is a real issue to face of particular ethnicities. The disparity between the educational success and their leadership attainment is evidence of a bamboo ceiling and the university needs to do its best to overcome it. There are settled cultural patterns that need to be challenged.»
The unconscious bias goes right to the top. The country’s Race Discrimination Commissioner, Tim Soutphommasane, has been asked if he worked in IT or Finance, or most recently, as an accountant.
In 2014, Dr Soutphommasane gave a speech that said «the bamboo ceiling» was well and truly above our heads. Not much has changed.
«But conversations are starting,» he said on Friday. «People are beginning to recognise there’s a problem.»
Across academia and business, tentative steps are being made to talk about the touchy subject of race and what is happening to the 99.95 ATAR club when they walk out the school gates. Public leaders are few and far between.
Dr Soutphommasane has initiated a partnership between the University of Sydney business school, PriceWaterhouseCoopers, Westpac and Telstra to develop a blueprint for more diverse leadership. PwC alone has a target of 11 per cent of its partners being of Asian origin by 2020.
It’s the perceptions that Dr Soutphommasane, who was born to Chinese and Laotian parents, has spent his career battling against.
«Leaders are expected to be charismatic, assertive and outspoken,» Dr Soutphommasane said on Friday. «At the same time, certain stereotypes of Asian-Australians persist. There is a perception that Asian-Australians are shy, timid and withdrawn.
«Put these together and you have an obvious problem. There can be an assumption that Asian-Australians make for better technicians than leaders. That they may not be able to master Anglo-Australian expectations of leadership.»
Part of the problem lies in the limited number of public faces of Asian identity on our most public platform, television.
Bing Lee and Victor Chang are often rattled off as icons, but you are more likely to find that the public faces of Asian Australians are given as TV chefs like Poh Ling and Adam Liaw.
The ABC’s outgoing managing director, Mark Scott, publicly acknowledged last week that the ABC had not done enough to promote cultural diversity on the public broadcaster.
«On broader diversity, we have a way to go, frankly,» Scott told Buzzfeed. «I draw a parallel to the BBC: when I watch and listen to the BBC when I’m in the UK, I think the on-air talent really represents a diversity of modern Britain and I’m not yet sure we represent the diversity of modern Australia.»
Dr Soutphommasane agrees. «Sadly, the issue doesn’t appear to be treated with any urgency within Australian television,» he said.
«The proof is in the programming: what you see on screen doesn’t remotely reflect the reality of modern Australia. And you still have parts of Australian television that appear comfortable in their periodic fits of casual racism.»
Dr Soutphommasane warned in 2014 that if the situation was not addressed the nation would create a class of professional Asian-Australian coolies in the twenty-first century.
«It would be neither just nor good to have a country where people may comfortably believe that a class of well-educated, ostensibly over-achieving Asian-Australians are perfectly content with remaining in the background, perennially invisible and permanently locked out from the ranks of their society’s leadership,» he said.
For Dr Spence, diversity starts with education. He is canvassing the idea of race targets in his faculties.
«That will be challenging,» he said. «Compared to gender, talking about race is much more problematic in the lucky country.
«But a diverse and contemporary Australia must be the country that lives up to our rhetoric. We have boundless plains to share, we need to make sure we live up that national anthem.»
The story Sydney’s finest Asian Australian students still missing out on leadership roles first appeared on The Sydney Morning Herald.

Fuente: http://www.bellingencourier.com.au/story/3880461/sydneys-finest-asian-australian-students-still-missing-out-on-leadership-roles/?cs=25

Fuente: http://www.bellingencourier.com.au/story/3880461/sydneys-finest-asian-australian-students-still-missing-out-on-leadership-roles/?cs=25
Photo: Louise Kennerley

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Australian National University’s School of Music ‘poorly managed by the university at all levels’

Australian National University’s School of Music ‘poorly managed by the university at all levels’

Australia/ Mayo de 2016/The Bellingen Shire Courier Sun

Resumen: El ex Comisionado de Servicio Público Andrew Podger dijo que la profundidad de los sentimientos y el estrés emocional que había identificado en la Universidad Nacional de Australia, mientras revisaba el futuro de la Escuela de Música ha sido «sorprendente».
Se ha identificado un punto de referencia de 200 estudiantes universitarios a fin de que la escuela se convierta en económicamente sostenible, pero su documento de consulta también identifica la crisis actual del número de estudiantes, con los estudiantes que hayan caído desde 165 en 2008 a una estimación de 67 en espera de dos semestres de matrícula. la matrícula de posgrado una reducción de 24 a 17. Esto significa que la escuela tiene que crecer en un 300 por ciento de sobrevivir.

Former Public Service Commissioner Andrew Podger said the depth of feeling and emotional stress he had identified at the Australian National University as he reviewed the future of the School of Music had been «striking» and wrongdoing had been identified at all levels of the university.
But Professor Podger said staff had given him positive and constructive feedback on Monday as he unveiled a consultation paper on options to shore up the troubled institution.
He has identified a benchmark of 200 undergraduate students in order for the school to become financially sustainable, but his consultation paper also identifies the current crisis in student numbers, with undergraduates having fallen from 165 in 2008 to an estimate of 67 pending semester two enrolment. Postgraduate enrolments have fallen from 24 to 17.
This means the school must grow by 300 per cent to survive.
The former public service commissioner was appointed by new Vice Chancellor Brian Schmidt in February to steer the future of the troubled School of Music.
Professor Podger said «the whole situation has been poorly managed by the university at all levels allowing the distrust and emotional stress to fester».
Professor Schmidt wrote a blog to staff and students on Monday saying «There is no one person or group of people responsible for the difficulties the school has had over many years but it is clear from the discussion paper that the university has not handled the challenges facing the school very well. I want to see us do better».
Professor Podger’s paper proposes a number of options, which will now be put to the community for further consultation before he provides a final document in August.
Options include the school’s curriculum including a stream that produces elite national and international musicians, a stream for those seeking academic careers on the development or study of music and those seeking other professional careers in the music industry, and a stream for those just wanting to enhance their music education while pursuing different careers.
Whatever approach is taken, Professor Podger emphasised the importance of retaining a strong performance element.
Suggested specialities for those elite performers could include piano, strings, brass, woodwind, guitar and percussion, with wide support for the reassertion of the school’s excellence in jazz reputation.
«There is a strong desire, within the school, across the ANU, across the Canberra community and across the wider Australian tertiary music community, for the future of the ANU School of Music to be resolved,» Professor Podger said.
«People desperately want to put the past behind and to identify a clear vision for the future that can be pursued with passion and enthusiasm.»
But his paper acknowledges the depth of the despair and damage apparent at the school, which is largely a result of the change of model and funding cuts instituted by Ian Young.
«My assessment is that, while a number of people have behaved inappropriately and have exacerbated issues by causing distrust, no one person or group can be held solely to blame as the inappropriate and unprofessional behaviour has been broader than that.»
«Some public acknowledgement of this, along with a moratorium on any action in response to alleged past misdemeanours, may help to clear the air and facilitate cultural repair. It would then be reasonable to expect everyone to support whatever direction the vice-chancellor determines for the school, and to work together under the leadership of the new head of school; equally, anyone then not willing to do so should look to moving on elsewhere.»
He believed Professor Schmidt was determined to address the troubled school.
«He is providing by personal example exactly the sort of leadership needed – all my public service experience reveals the critical importance of the top executive ‘walking the talk’.»
Professor Podger did not believe his review would spark a new round of staff departures following a turbulent 18 months in which a steady stream of acclaimed musicians have left.
«I do not expect staff to go. Indeed, the paper proposes investing in some additional staff to support growth in enrolments back to the levels of a decade ago or higher. It also proposes sessional contract arrangements to improve instrument tuition and performance education, replacing the Performance Development Allowance introduced in 2012.
The ANU has so far failed to attract a new head following the shock departure of Peter Tregear last August – widely understood to have been forced out after calling management to account on staff workload and resourcing issues.
Professor Podger stressed a new leader needed adequate support.
On the vexed issue of governance, with the school run out of the College of Arts and Social Sciences, Professor Podger raised the issue of detaching the school from the college given long-term tensions between the two.
Financially, Professor Podger has set a benchmark of 200 undergraduate students and 20 postgraduate students for sustainability if the university decides to focus on a core curriculum that would provide quality music education for non-elite students.
This would require an increase in the vice-chancellor’s allocation to the school from $1.4 million currently to about $2 million a year and invest as much as $3 million for up to five years in order to attract relevant staff and support while student numbers were built.
Providing the elite stream on top of that would cost $750,000 a year.
There were considerable calls for ACT funding – currently provided through an ArtsACT grant of about $1.4 million a year which is quarantined for music outreach to the community – to be increased.The report also notes the «substantial reductions in the real value of its support over the last 20 years» with the ACT’s contribution falling in real terms from $2.74 million in 1995.
The paper can be viewed athttp://imagedepot.anu.edu.au/scapa/Website/Final_Discussion_Paper_020516.pdf
The story Australian National University’s School of Music ‘poorly managed by the university at all levels’ first appeared on The Sydney Morning Herald.

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Australia: School’s rising stars get out-of-this-world experience

Australia: School’s rising stars get out-of-this-world experience

Australia/Mayo de 2016/Bay of Plenty Times

RESUMEN
Estudiantes de la Escuela Primaria Tauranga, están experimentando el cielo de la noche bajo una cúpula hinchable. El “Starlab portátil” está de visita en la escuela esta semana. La maestra Gloria Witheford enseña a los niños acerca de la astronomía. Cerca del centro de la cúpula, la Sra Witheford controla una lámpara que, dependiendo de la cubierta usada, ilumina las paredes de la cúpula con las constelaciones del cielo nocturno como se ve actualmente. La cúpula es plegable y cabe en una bolsa grande. Ms Witheford lo lleva a las escuelas de la Isla Norte y cubre la parte del programa de estudios sobre astronomía. «Dependiendo de la edad, podemos fijarnos en el sistema solar, Tengo películas y diapositivas sobre el sistema solar.»Nos fijamos en lo que está en el cielo en el momento en que los niños pueden llevar a sus padres fuera en casa y mostrarles lo que han aprendido, asi lo señalo Witheford.
Tauranga Primary pupils are experiencing the night sky under an inflatable dome in their school hall.
The portable Starlab is visiting the school this week with owner/operator Gloria Witheford teaching children about astronomy.
Near the centre of the dome, Ms Witheford controls a lamp which, depending on the cover used, lights up the walls of the dome with the constellations of the night sky as it currently looks.
«Depending on their age, we might look at the solar system, I’ve got movies and slides showing the solar system.
«We look at what’s in the sky at the moment so the kids can take their parents outside at home and show them what they’ve learned.
«I’ve had 10-year-olds that have never had a good look at the night sky because their parents think it’s not safe to be outside.
«My attitude is show your parents what you’ve learned, the kids think it’s marvellous knowing more than their parents.»
The children get to hold meteorites – something real from space they can actually touch.
The dome is collapsible and fits into a large bag.
Ms Witheford takes it to schools in the North Island and covers the part of the school curriculum about astronomy.
Por: Sonya Bateson
Tion Tite and Maddison Thomas show off meteorites they learned about in the portable Starlab. Photo / George Novak

Fuente: http://www.nzherald.co.nz/bay-of-plenty-times/news/article.cfm?c_id=1503343&objectid=11637362

foto:
http://media.nzherald.co.nz/webcontent/image/jpg/201620/16479708fd46d6077ee522b63b2861a3188016c4_620x311.jpg

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Australia: Parata meets with Redcliffs School to discuss future

Australia/Autor Charlotte Lewis-West/ 10 May 2016/ Fuente: newstalkzb

Resumen: Tras el sismo de 5,8° acontecido en el mes de Febrero, la escuela Christchurch’s Redcliffs fue cerrada provisionalmente. La Ministra de Educación Hekia Parata, se reunió con la junta escolar para analizar el  caso de permanecer abierta  a pesar del  riesgo que se cierne alrededor del desprendimiento de rocas. Los reportes geotecnológicos determinaron  que el desprendimiento de rocas a futuro no afectaría la escuela, sin embargo, nuevos informes son levantados por especialistas del ministerio en vista de que es una situación que preocupa a la Ministra. La decisión final de permanecer abierta o no, será dada a conocer a finales de Junio.

UPDATED:  Last night’s meeting between Christchurch’s Redcliffs School and the Education Minister managed to dodge the hot topic rockfall risk.

It was the last chance for the school board to discuss its case to remain open with Hekia Parata.

Board spokesman Mark Robberds told Mike Hosking the mood is positive.

LISTEN ABOVE: Mark Robberds talks to Mike Hosking

«She’s certainly listening to what we had to say and last week we presented the geotech report to some of her officials as well and all we can do is just put our faith in the process being followed correctly and the minister listening to those officials.»

In March, it produced a new geotechnical report, indicating future rockfall wouldn’t affect the school, which was the Minister’s main concern.

Principal Rose McInerney said the Minister asked them not to focus in the rockfall in the meeting.

«Because it’s such a specialised area, she’s keen to hear about that information from her experts, because they’ve worked with our experts.

«We were able to discuss little bits and pieces about the sight, we just didn’t go into any great detail.

Ms McInerney said it was a positive meeting, and they feel confident the school will stay open when the announcement is made in June.

«The Minister has got to hear all the different aspects about our submission,» she said.

«We were able to really present the most important aspects to her, and she listened, asked us a few questions and now she can go away and reflect on that information.»

Robberds said if the Minister’s decision goes against them, it’ll have to be for a better reason than what’s currently on the table.

«We’re sure, that with the facts that we’ve got now with this new geotech report, the school is safe absolutely safe but not only that, safe from disruption which was the actual reason why closure was proposed.»

A final decision is expected at the end of June.

Fuente: http://www.newstalkzb.co.nz/news/education/parata-meets-with-redcliffs-school-to-discuss-future/

Imagen: http://www.stuff.co.nz/content/dam/images/1/8/i/7/r/o/image.related.StuffLandscapeSixteenByNine.620×349.18i6sh.png/1449203969101.jpg

 

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Australia: Inner Sydney school shortage to be relieved by $60 million investment

Inner Sydney school shortage to be relieved by $60 million investment
Australia / Mayo de 2016/ courier-sun

Resumen: El Departamento de Educación de Nueva Gales del Sur invertirá más de $ 60 millones en nuevas escuelas del centro de Sydney en un intento por frenar la escasez crónica de plazas escolares.

The NSW Department of Education will invest more than $60 million into new inner Sydney schools in a bid to curb a chronic shortage of school places.
On Wednesday, NSW Education Minister Adrian Piccoli announced a new kindergarten to Year 12 school in Alexandria with capacity for 2200 students.
The initiative will barely cover the expected enrolment surge that will come with the nearby Green Square development, with 60,000 residents swarming into the area over the next decade.
At the same time, the government will move students out of Cleveland Street Intensive English High school onto the existing Alexandria Park senior campus.
The shift means that construction can finally begin on the 1500-student, high-rise high school in the middle of the Sydney CBD, as enrolments at nearby Bourke, Crown and Fort Street Public Primary schools swell with the children of inner Sydney residents.
«It is a significant challenge,» said Mr Piccoli. «Land in the inner city is always a challenge and that means putting more students onto sites.»
The decision comes after Fairfax Media revealed an $11 billion funding shortfall that has compounded the department’s metropolitan enrolment crisis.
In total, the NSW school system will be required to cope with an extra 225,000 students by 2031, 165,000 of whom will be in the public system, with 90 per cent of that increase in Sydney.
Schools across the city are already being forced to split lunch times, ban running in playgrounds and increasingly rely on demountables in order to deal with enrolment surges as well-off inner-city parents increasingly look to the public system.
«There is such strong demand for public education because of the confidence people have in the education system,» Mr Piccoli said.
Labor’s education spokesman, Jihad Dib, said the $60 million commitment was a start but just the tip of the iceberg when it came to new school places.
«For [the government] to be championing itself as the public school saviour frankly rings hollow,» he said.
While the state struggles to catch up with enrolments, its future school finances took a multibillion-dollar hit in the federal budget on Tuesday.
The Commonwealth only committed to a quarter of the recommended Gonski funding, through a $1.2 billion increase in education funding to all the states and territories.
The move has frustrated NSW Premier Mike Baird, NSW Treasurer Gladys Berejiklian and Mr Piccoli, who have been lobbying their Canberra Coalition colleagues for the past two years to honour the needs-based Gonski agreement.
«We have been arguing about this for a long time,» said Mr Piccoli.
«If the Coalition wins the federal election, I will continue to argue with the Commonwealth, and if their budget position improves, we will be going back to them and saying we want [the recommended funding].
«Gonski is fairness. It is about every student having exactly the same opportunity in life when at school. You don’t choose who your parents are, you don’t choose if your parents are drug addicts or if they are lawyers and doctors,» the Education Minister said.
«As a society we have an opportunity to level that playing field at school. That is what Gonski is all about».
Cleveland Street High School is scheduled to open in 2020, while the Alexandria Park campus is due to be completed by 2022.
The story Inner Sydney school shortage to be relieved by $60 million investment first appeared on The Sydney Morning Herald.
Fuente:
http://www.bellingencourier.com.au/story/3888316/inner-sydney-school-shortage-to-be-relieved-by-60-million-investment/?cs=25

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Australia: Esta no es la educación – esto es propaganda.

Oceanía/Australia/10.05.2016/Autor:J-Wire Staff/Fuente:http://www.jwire.com.au/
El director de la escuela judía más grande de Melbourne ha arremetido contra la selección de un juego establecido en Gaza en torno a la guerra de Gaza de 2008-09 Certificado de estilo victoriano de este año de los exámenes de Educación.
«Tales of a City by the Sea» fue escrito por el palestino-australiano-canadiense Samah Sabawi y tendrá su segunda carrera en Melbourne, la apertura de esta semana.
La obra describe la vida en Gaza, donde nació Sabawi, durante la guerra de 2008-09 y representa el gobierno de Israel según la edad como «tirano», con personajes que acusan a Israel de llevar nuestros «masacres del pueblo palestino».
Pero el rabino James Kennard, el director de la Universidad conmemorativa del Monte Scopus de Melbourne dijo: «Un estudiante judío en una escuela no judía, se enfrentan a un juego de un solo lado como este que se presenta erróneamente israelíes como committers monstruosas de genocidio, sin explicación a qué Israel debe tomar medidas contra los ataques de Hamas o por qué Israel tiene que mantener un bloqueo contra el equipo militar, sin duda se sienten vulnerables al abuso antisionista o antisemita. Este juego, especialmente si se presenta como parte del programa de estudios, niega todos los estudiantes, judía o no, el derecho a crear su propia opinión informada con respecto a un área tan importante y sensible de conflicto. Esta no es la educación; es propaganda «.
Presidente del Consejo de la Comunidad Judía de Victoria Jennifer Huppert dijo: «Sobre la base de los extractos que he visto, esto parece ser una representación muy parcial de lo que es una situación extremadamente compleja, y no proporciona ninguna comprensión de los antecedentes de la conflicto entre Israel y Gaza.representación sesgada de la obra del conflicto tiene el potencial de crear puntos de vista negativos sobre los israelíes y los Judios en el aula, lo que no contribuye a nuestra sociedad multicultural «.
Liberal Estado miembro del Parlamento David dijo Southwick J-Wire: «La selección de una obra de teatro, que contiene la propaganda anti-israelí, es sumamente preocupante y plantea serias cuestiones de criterios de selección del Gobierno Andrews para materiales de estudio VCE. El juego fomenta el odio del público hacia Israel. Es inaceptable que Victoria, el llamado «Estado de Educación, ‘es la enseñanza de la demonización de Judios, incluyendo en el aula, que perjudicaría a un estudiante judío».
Un portavoz de la universidad Bialik ha añadido: «No perjudicar a nuestros estudiantes – estudiantes Bialik no están estudiando el juego. Es una de las opciones de la lista de reproducción «.
Federal del Trabajo MP Michael Danby cuyo electorado está dentro de Melbourne, dijo que «el drama VCE está fuera de contacto».
El VCAA incluyó los siguientes antecedentes al proceso de selección de juego:
  • Los centros pueden elegir uno de los seis juegos en la lista de reproducción a asistir basa en su propio juicio con respecto a la relevancia y la accesibilidad de las obras enumeradas a sus estudiantes. Las escuelas no están obligados a asistir Tales of a City por el mar.
  • El objeto de estudio en Drama VCE está en el juego en el rendimiento y el uso de estilos teatrales no naturalista y dispositivos; los temas y problemas de las obras de teatro proporcionan un contexto para el drama, pero no son el objeto de estudio.
  • «Tales of a City por el mar» se centra principalmente en temas universales de las relaciones humanas en un ambiente hostil y no en cuestiones de poder político.
    Los cuentos de juego de una ciudad junto al mar fue sometido a la consideración del Comité de selección para la Unidad de VCE 3 drama Lista de reproducción por Teatro La Mama.
  • Teatro La Mama es reconocido nacional e internacionalmente por su continuo apoyo y promoción del teatro contemporáneo australiano por un período de casi 50 años.
  • El comité de selección formado por 14 educadores de teatro con experiencia procedentes de las diversas sectores escuela victoriana, la industria y las universidades. El comité de selección se aplica un conjunto de criterios aprobados por el Consejo VCAA el fin de seleccionar las obras para la lista de reproducción.
  • Estos criterios incluyen el requisito de que las obras seleccionadas son apropiadas para la edad y el desarrollo de los estudiantes, reflejan las normas y expectativas de la comunidad y las directrices del sector escolar.
  • El comité presentará su lista de reproducción recomendó a la Junta VCAA que autoriza la selección final.
  • Tras la aprobación por la Junta VCAA, la lista de reproducción 2016 fue publicado en noviembre de 2015. No se recibieron consultas sobre la inclusión de relatos de una Ciudad por el mar, que se realizó con anterioridad en 2014, recibiendo buenas críticas de los colaboradores de teatro independiente. La secuencia de comandos ha estado disponible públicamente en línea durante algún tiempo.
  • Preliminar 2016 cifra de matriculaciones en Drama VCE es 1.373.
  • En la toma de decisiones en la lista de reproducción, VCAA tiene en cuenta la edad y madurez de los estudiantes VCE.
  • VCAA considera que la obra tiene verdadero mérito dramático como un ejemplo de teatro contemporáneo, y es digno de estudio por los estudiantes VCE drama.
  • La Mama organiza foros ejecutante y del estudiante como parte de la experiencia que se centran en los estilos de interpretación y el arte de los artistas. Estos foros no implican discusión de temas políticos.

Fuente: http://www.jwire.com.au/not-education-propoganda/

Imagen:

http://image.guardian.co.uk/sys-images/Education/Pix/pictures/2006/10/23/kennardturnerwide.jpg

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Australia: Burbujas de lava antiguas revelan sobre la tierra primigenia.

Oceanía/Australia/10.05.2016/Autor y Fuente : http://www.gdnonline.com/

Las burbujas diminutas que se formaron en el interior de la roca volcánica hace 2,7 millones de años están proporcionando grandes conocimientos sobre las condiciones de la Tierra primitiva.

Los científicos dijeron que un análisis de las burbujas de gas atrapadas en la antigua roca de basalto que se formaron a partir de antiguos flujos de lava en el oeste de Australia mostró el planeta en aquel entonces poseía un ambiente mucho más delgada, con la mitad de la presión de aire de lo que es hoy.

Ese hallazgo contradice la noción tradicional de que la Tierra y luego tuvo una atmósfera más gruesa para compensar un sol más débil, con luz solar alrededor del 15 por ciento de intensidad.El sol se está iluminando poco a poco con el tiempo, parte de la evolución natural de una estrella.

La Tierra se formó hace aproximadamente 4.5 mil millones de años. El planeta hace 2.7bn años todavía era muy diferente de lo que es hoy en día.

Además del sol más débil, el aire le faltaba oxígeno, la luna estaba más cerca de lo que las mareas eran más fuertes, Tierra giraba más rápido, así días eran más cortos, y las únicas formas de vida eran microbios unicelulares, dijo el líder del estudio Sanjoy Som, CEO de Seattle basado espacio de mármol azul, una organización sin ánimo de lucro centrada en la investigación científica espacial, educación y difusión pública.

Los resultados demuestran que «un medio ambiente planetario completamente diferente a la Tierra moderna puede mantener la vida en su superficie», dijo Som, que trabajó en el estudio, mientras que en la Universidad de Washingto? N, y se basa ahora en el Centro de Investigación Ames de la NASA en California.

«La vida no necesita condiciones similares a la Tierra moderna para sobrevivir y prosperar. Esto es importante en nuestra búsqueda de ambientes habitables en planetas extra-solares», agregó Som.

Los científicos utilizaron la tecnología de escaneado sofisticado para analizar el tamaño y distribución de las burbujas dentro de la antigua roca de lava se encuentran a lo largo de las orillas del río Beasley de Australia que solidificó al nivel del mar.

Los flujos de lava se enfrían rápidamente de la parte superior e inferior, con las burbujas atrapadas en la parte inferior es más pequeño que los de arriba. La diferencia de tamaño en estas burbujas proporcionan un registro de la presión atmosférica empuja hacia abajo sobre la roca fundida medida que se enfriaba, dijeron los investigadores.

Los hallazgos sugieren que la atmósfera de la Tierra era rica en gases de efecto invernadero.

«Este estudio no proporciona un conocimiento directo acerca de la composición del aire», dijo Som. «No obstante, debido a la mayor parte de la presión del aire es nitrógeno, y que necesitan gases de efecto invernadero para compensar un débil sol, el metano – un potente gas de efecto invernadero – era un constituyente importante probable, así como vapor de agua – otro potente gas de efecto invernadero.»

Fuente:

http://www.gdnonline.com/Details/85942/Ancient-lava-bubbles-reveal-about-primordial-Earth

Imagen:

http://www.gdnonline.com/gdnimages/20160510/201605100008077396740-3×2-700×467.jpg

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