Achievement

Perovskite: new type of solar technology paves the way for abundant, cheap and printable cells

Retrieved on: 
Tuesday, May 2, 2023

We have developed the world’s first rollable and fully printable solar cell made from

Key Points: 
  • We have developed the world’s first rollable and fully printable solar cell made from
    perovskite, a material that is much less expensive to produce than silicon.
  • The silicon solar cells that are so recognisable to us have a significant limitation.
  • In research labs, using highly controlled production methods in environments where oxygen and water are completely removed, perovskite solar cells can now match the electricity generation of silicon solar cells.
  • But cheap perovskite solar cells that do away with silicon have yet to be manufactured on a commercial scale.

How our solar cell works

    • In the past, this had been achieved by heating gold in a vacuum until it evaporated, and catching the vapour on the perovskite solar cell to form electrodes.
    • The result is large volumes of flexible, rollable solar cells that come out of the printing press ready to generate power.

More work needed

    • The 10% power conversion efficiency achieved by these rollable printed cells is useful, and higher than the first commercial silicon panels.
    • There is an engineering challenge to overcome in order that high-volume, commercially produced perovskite solar panels can match the energy generation of silicon.
    • But the possibility of producing hundreds of thousands of square metres of flexible perovskite solar cells is now a step closer.

Tech giants forced to reveal AI secrets – here’s how this could make life better for all

Retrieved on: 
Friday, April 28, 2023

The European Commission is forcing 19 tech giants including Amazon, Google, TikTok and YouTube to explain their artificial intelligence (AI) algorithms under the Digital Services Act.

Key Points: 
  • The European Commission is forcing 19 tech giants including Amazon, Google, TikTok and YouTube to explain their artificial intelligence (AI) algorithms under the Digital Services Act.
  • Asking these businesses – platforms and search engines with more than 45 million EU users – for this information is a much-needed step towards making AI more transparent and accountable.
  • This will make life better for everyone.
  • Banks use software to check our credit scores before offering us a mortgage, and so do insurance or mobile phone companies.

Black box ratings

    • This could be because of some error about you somewhere on the internet.
    • In Europe, you have the right to be forgotten and to ask online platforms to remove inaccurate information about you.
    • But it will be hard to find out what the incorrect information is if it comes from an unsupervised algorithm.
    • Yet algorithms are already being used to screen job applications, evaluate students and help the police.

The cost of accuracy

    • When a teacher believes girls to be weaker than boys in maths and stronger in literature, students organise their effort accordingly and the teacher is proven right.
    • This is why companies should share commercial information with regulators before using them for sensitive practices such as hiring.
    • Some believe the absence of the EU from major AI innovation is a direct consequence of its strict data protection laws.
    • But unless we make companies accountable for the outcomes of their algorithms, many of the possible economic benefits from AI development could backfire anyway.

First Nations students are engaged in primary school but face racism and limited opportunities to learn Indigenous languages

Retrieved on: 
Friday, April 28, 2023

It is rare to hear from Indigenous students and young people directly in research and reports.

Key Points: 
  • It is rare to hear from Indigenous students and young people directly in research and reports.
  • Indigenous students, their parents and their teachers shared their experiences as part of the federal government’s ongoing “Footprints in Time” study.
  • Our findings show young Indigenous school students are engaged in their school lives.

Our research

    • Since 2008, it has followed the development of Indigenous children to understand what they need to grow up strong.
    • It involves annual waves of data collection and follows about 1,700 Aboriginal and Torres Strait Islander children living in urban, regional and remote locations.
    • Our new primary school report has been produced as the majority of children in the study have now completed primary school.

Students are engaged

    • There is a prevailing assumption in education debates that school engagement is a struggle for Indigenous students and their families.
    • Yet more than half of the children in this data set were very highly and consistently engaged with school right across the primary years.

Racism is a problem (despite what some teachers think)

    • Our report found a disconnect between teachers’ approaches to cultural identity, the training they have received and racism experienced by parents and students.
    • Many teachers spoke of taking a “colourblind” approach, with teachers having the general sense racism is not an issue in their classrooms.
    • As one teacher noted:
      I aim to treat each child the same as any other in terms of race.
    • I also aim to teach this to my students.

Time to change homework approaches?

    • This included weekly homework to revise what is taught in class, as well as readers and flash cards.
    • When asked what they would like to change about school, children reported reduced homework.

Opportunities to learn Indigenous languages

    • While learning to read and write in Standard Australian English is important, so too are Indigenous literacies and languages.
    • Almost 90% of parents surveyed said they wanted their child to learn an Indigenous language at school, but only 21% of children had this opportunity.
    • Primary school teachers most frequently reported they would benefit from learning to teach Indigenous children successfully (61%), followed by learning about Indigenous culture in the local area (59%), and then learning to teach Indigenous knowledge appropriately (58%).

What next?


    Our report highlights several areas where we can make positive – and necessary – changes. These include:

The National School Reform Agreement

    • These priorities should be addressed in the next National School Reform Agreement.
    • The agreement is a joint agreement between the Commonwealth, states and territories, designed to lift student outcomes in Australian schools.
    • Kate E. Williams has previously received funding from the Australian Research Council, National Health and Medical Research Council, and Queensland Department of Education.
    • She is an Adjunct Professor in the School of Early Childhood & Inclusive Education at the Queensland University of Technology.

With the COVID crisis easing, is the National Cabinet still fit for purpose?

Retrieved on: 
Friday, April 28, 2023

The establishment of the National Cabinet in March 2020, which brought together the prime minister, state premiers and territory chief ministers to coordinate the national response to the COVID pandemic, played into this strength.

Key Points: 
  • The establishment of the National Cabinet in March 2020, which brought together the prime minister, state premiers and territory chief ministers to coordinate the national response to the COVID pandemic, played into this strength.
  • Compared to other intergovernmental forums, the National Cabinet was designed to be nimble, decisive and not weighed down by bureaucracy.
  • However, three years on, and with the pressing nature of the pandemic easing, it’s time to rethink the National Cabinet.

1. An informal approach is no longer sustainable

    • While the current model for National Cabinet worked well at the height of the pandemic, the same approach is not ideal today.
    • Since the abolition of the Council of Australian Governments (COAG) in 2020, National Cabinet has served as the primary forum for Australia’s leaders to meet and consider important issues facing the country.

2. The veil of secrecy must be lifted

    • Federal Court Justice Richard White held that simply naming the institution a “cabinet” did not automatically grant it confidentiality.
    • Read more:
      Morrison government loses fight for national cabinet secrecy

      But even after that decision, both the Morrison and Albanese governments have refused Freedom of Information requests for National Cabinet documents.

    • Adding in a policy of blanket secrecy about National Cabinet further constrains our ability to hold governments accountable and undermines public trust.
    • Read more:
      Nowhere to hide: the significance of national cabinet not being a cabinet

3. National Cabinet must have a true federal-state balance

    • If the National Cabinet is to succeed into the future, its participants must be committed to the aims of federalism.
    • Any reform of National Cabinet should ensure it is a truly federal body.
    • These issues remain a challenge to fostering greater equality in the National Cabinet and optimising our federation to the greatest advantage.

Where to from here?

    • But the transition from COAG to the National Cabinet was so swift, there was no opportunity to develop a truly workable, sustainable model.
    • The National Cabinet has an opportunity to learn from the deficits of COAG and create a lasting model of federal cooperation and achievement.

'Life changing' – what 50 years of community-controlled housing at Yumba-Meta tells us about home and health

Retrieved on: 
Friday, April 28, 2023

Yumba-Meta is a community-controlled organisation that has delivered comprehensive support programs for 50 years to Aboriginal and Torres Strait Islander people.

Key Points: 
  • Yumba-Meta is a community-controlled organisation that has delivered comprehensive support programs for 50 years to Aboriginal and Torres Strait Islander people.
  • Medium to long-term housing options include community home ownership, seniors’ housing, and transitional housing to facilitate employment, education or to break the cycle of addiction.

What we did

    • We interviewed Yumba-Meta staff and used yarning and photoyarning with Yumba-Meta residents and Elders to hear about the history and evolution of Yumba-Meta.
    • Photographs are used as both prompts and a way for participants to share their thoughts and ideas.
    • This includes homes under the employment and education program, supported accommodation, women’s shelters and diversionary places.

Safe at home

    • Our research found a sense of pride is instilled when families and individuals have a home – somewhere grandchildren can visit, a place where young people can learn from Elders, and a safe place to go.
    • We found health improves over time with safe and affordable housing, especially for older generations who have struggled in the past with housing issues such as chronic overcrowding, and racism that prevents Indigenous people renting and purchasing homes in Townsville.
    • Young people saw that having their own bed and homes with less people allowed better sleep and space for learning and study.

Before and after

    • Descriptions of life living rough with little ability to eat healthy food were juxtaposed with their new life in a stable home: having food in the fridge and cupboard, and making good personal choices.
    • These yarns showed the impact organisations like Yumba-Meta can have, by providing supports on multiple fronts while people heal and make positive changes in their lives.

What ‘home’ means

    • These things might be taken for granted in other communities, but previously for Yumba-Meta residents, this stability was often out of reach.
    • Jessa Rogers is a First Nations Senior Research Fellow in the Digital Media Research Centre at Queensland University of Technology (QUT).
    • Vicki Saunders is a Gunggari woman and Senior Research Fellow in the Jawun Research Centre at Central Queensland University (CQU).

Australian unis could not function without casual staff: it is time to treat them as 'real' employees

Retrieved on: 
Sunday, April 23, 2023

A review team is due to finish a draft report in June and a final report in December 2023.

Key Points: 
  • A review team is due to finish a draft report in June and a final report in December 2023.
  • raised concerns about insecure work and underpayment in the higher education sector, particularly for casual or sessional staff.
  • We must stop treating casuals as though they are an afterthought, rather than a vital part of higher education.

A huge rise in casual staff

    • Employment of casual staff has been on the rise since the late 1980s.
    • The union also estimates more than A$100 million in unpaid wages is owed to casual academic staff in Australia.
    • This has also been reported in media investigations about casual staff in the higher education sector.

Our research: ‘a trend of overwork’

    • Between 2018 and 2019, we spoke with 27 academics employed in a range of insecure roles at universities in Australia and the UK.
    • I think really […] if you can just get a job and keep working, that’s an achievement in itself.
    • I think really […] if you can just get a job and keep working, that’s an achievement in itself.
    • Read more:
      'Some of them do treat you like an idiot’: what it’s like to be a casual academic

What needs to happen instead

    • Universities should also recognise the diversity of employees’ employment aims and focus on fair conditions for all staff.
    • For example, not all academics would like to work full-time or undertake research.
    • Australia spends 1.8% of GDP on research, down from 2.25% in 2008 and well behind the OECD average of 2.68%.
    • If staff are more secure and better supported, this will also support improvements in teaching and learning as well as world-leading research.

The politics of the castaway story

Retrieved on: 
Wednesday, April 19, 2023

Triangle of Sadness follows the familiar plot of a castaway story.

Key Points: 
  • Triangle of Sadness follows the familiar plot of a castaway story.
  • The castaway story has helped promulgate a view about human nature as eternal and unchanging.
  • However, the castaway story reflects on the relationship between individuals and society.
  • Triangle of Sadness and other modern castaway stories, reach back to one of the first English-language novels, Daniel Defoe’s Robinson Crusoe (1719).
  • More than a survival tale of a man shipwrecked on a desert island, Robinson Crusoe is also a fascinating moral fable of individualism.

Work and enslavement

    • Robinson remains true to this spirit once he is shipwrecked, claiming the island to have “no society” and declaring the land as his personal kingdom.
    • Robinson becomes a farmer (using seeds from the shipwreck), raises cattle in accordance with European agriculture, hunts with muskets and hoards gold.
    • In one of the most shocking parts of the novel, he captures and enslaves a man, who he calls “Friday”, converting him to Christianity.
    • Much of the novel is about work.
    • Defoe was highly influenced by Hobbes and Locke, who provide the model individual for Robinson’s colonial adventure story.

Beyond individualism

    • Rousseau envisaged a kind of democracy which allows for individuals to be free in their collective decision-making.
    • In Rousseau’s educational treatise, Émile (1762), initially Robinson Crusoe is the only book the young boy is allowed to read.
    • Hierarchies of birth and privilege were overthrown and liberty was proclaimed for all based on the equality of human beings.
    • (Although as many critics, including Mary Wollstonecraft, pointed out this idea of equality was limited, and excluded women.)
    • The depiction of slavery in Robinson Crusoe and the politics of individualism were called into question by G.W.F.
    • In Hegel’s philosophy, individuals were always part of social relationships and needed to be thought of in relation to communities.

Ofsted inspections cause teachers stress and aren't backed up by strong evidence – things could be done differently

Retrieved on: 
Tuesday, April 18, 2023

This has sparked debate about whether the current Ofsted framework should be changed.

Key Points: 
  • This has sparked debate about whether the current Ofsted framework should be changed.
  • But the Ofsted inspection system does not have to work in the way it currently does.
  • There isn’t strong evidence to back up the Ofsted model – and our research shows that there are alternative systems.
  • As part of this system, school inspection grades are awarded and made public and inspection reports are made public.

Other options

    • Results from this study showed that inspectorates in Ireland, Austria and Switzerland did not make use of sanctions as a mechanism to improve standards.
    • Inspectorates in Sweden, Czech Republic, Austria and Switzerland did not make inspection reports public.
    • Some show positive impacts, while a number have found Ofsted had a negative effect on GCSE results following inspection.
    • In fact, it’s not clear that systems, such as Ofsted, which are intended to improve educational standards have any significant benefit.

Side effects

    • Even if there was clear evidence on the impact of highly pressurised systems in raising standards, our research showed pressurised school inspections can lead to unintended side effects.
    • These include a narrowing of the curriculum to focus on what the inspection system considers important, and an increase in “teaching to the test” strategies.
    • We should question whether these pressurised inspection mechanisms should be used without first thoroughly investigating their impact on the wellbeing of teachers and school managers.

Feeding Africa: how small-scale irrigation can help farmers to change the game

Retrieved on: 
Tuesday, April 18, 2023

Farmers decide what technologies to use to extract water, be it manual lifting or solar water pumps.

Key Points: 
  • Farmers decide what technologies to use to extract water, be it manual lifting or solar water pumps.
  • Farmers purchase, run and maintain the operation themselves on their own farms or as part of small groups of farmers.
  • Small-scale irrigation can help smallholder farmers to increase agricultural productivity and incomes.
  • For these reasons, it can contribute more rapidly to the achievement of national agricultural and development goals, compared to large irrigation schemes.
  • Small-scale irrigation contributes to the resilience of smallholder producers by preserving their food security and nutrition during times of drought.

What we found

    • Women’s dietary diversity is a measure of quality of food access, defined as the consumption of different food groups over the previous 24 hours.
    • We found that women’s diets in that region were generally poor and identified high seasonal fluctuations in diet quality.
    • We used standard measures like weight-for-height deviations, also known as wasting, which is a measure of acute malnutrition.
    • It is challenging to address through a single intervention such as irrigation.

Boosting the impact

    • Irrigation should, therefore, be promoted as a nutrition intervention, in addition to its potential for higher yields, incomes and employment.
    • They should have greater input into decisions about technology and crop choice, and control over irrigated output.
    • Addressing nutritional deficiencies: Policy makers should promote irrigated foods that not only generate income but also address local nutrient deficiencies.
    • The International Food Policy Research Institute, where Elizabeth Bryan works, receives funding from a large number of donors.

Australia’s barley solution with China shows diplomacy does work

Retrieved on: 
Monday, April 17, 2023

It raises confidence Australia can maintain a constructive relationship with China even as US-China relations continue to deteriorate.

Key Points: 
  • It raises confidence Australia can maintain a constructive relationship with China even as US-China relations continue to deteriorate.
  • China imposed an 80.5% import tariff on Australian barley in May 2020, on the grounds Australian barley was sold in the Chinese market at a price lower than its price in Australia (known as “dumping”) and was subsidised, harming China’s barley growers.
  • China’s Ministry of Commerce began an anti-dumping and anti-subsidy investigation into barley in November 2018.

What the barley agreement means

    • Digging into the details of the barley deal, China has agreed to conduct an expedited review of barley tariffs in the next three or four months.
    • China’s Ministry of Commerce initiated a review
      on April 14, based on an application lodged by the China Alcoholic Drinks Association.
    • For Australia, this offers a quicker path to get barley back in the Chinese market than proceeding with the WTO case.
    • Read more:
      It might look like China is winning the trade war, but its import bans are a diplomacy fail

Knocking on the Trans-Pacific Partnership’s door

    • The trade pact involves 11 Pacific-rim nations and now Britain, whose request to join was approved by the other signatories in March.
    • China lodged its application to join after the UK, in September 2021.
    • That’s not unexpected, because no country has a bigger stake in global trade.

From cautious optimism to reasonable confidence

    • This has involved incrementally rebuilding economic cooperation while managing disagreements on values and security issues through calm and professional engagement.
    • Add in political willingness and diplomatic wisdom, and an assessment of cautious optimism can be replaced by one of reasonable confidence in the upward trajectory of the bilateral relationship.