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American Vacuum Society honors Jefferson Lab accelerator scientist

Marcy Stutzman has been named a fellow of the American Vacuum SocietyCredit: DOE’s Jefferson Lab Some of the most advanced…

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Some of the most advanced work to enable research at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility is focused on ensuring that nothing gets in the way of the electron beam produced for nuclear physics experiments. Now, one Jefferson Lab staff scientist is being honored for her work on producing ultra-high to extreme-high vacuum environments to do just that.

Marcy Stutzman, a longtime staff member of Jefferson Lab’s Center for Injectors and Sources, has been named a Fellow of the American Vacuum Society for her “pioneering work in XHV chamber processing, coatings and measurements, enabling repeatable performance near 10-12 Torr and below along with leadership to AVS technology outreach and education.”

“I am honored to be chosen as an American Vacuum Society Fellow. AVS has connected me with a great community of scientists working on many research areas, including vacuum science and technology, and I am grateful to be recognized in this way by my colleagues,” she said.

Stutzman’s work contributes to the smooth and efficient operation of Jefferson Lab’s primary particle accelerator, the Continuous Electron Beam Accelerator Facility, a DOE User Facility. CEBAF accelerates electrons for use in nuclear physics experiments. Stutzman ensures that the machinery that produces the beam of electrons for CEBAF to accelerate is built to world-leading standards and is maintained in tip-top shape, that these electrons are generated in an ultra-high to extreme-high vacuum and thus contamination-free environment, and that they are imbued with desirable properties.

“To achieve good operational lifetime for the CEBAF polarized electron source, our vacuum has to be at or near the best that has been achieved in the world. All aspects of the vacuum system are at the edge of what technology can support,” Stutzman explained. “I’ve worked within the polarized source group for 19 years now to optimize the pumps and the materials, fabrication and assembly techniques that are needed to reach pressures at or near 1×10-12 Torr.”

Stutzman has also shared her expertise with her colleagues in the AVS and has served in many leadership roles in the organization since 2002. She has served on the committee for the Mid-Atlantic Chapter of the society and has served on the Vacuum Technology Division committee as chair, program chair, treasurer and secretary. She has also worked as chair of the History committee and as the representative to the American Institute of Physics’ member society History Liaison Committee.

“The AVS has offered great opportunities for me to interact with others working on cutting edge vacuum research. I have learned many things from my AVS colleagues, and hope that they’ve found the work I’ve presented to be helpful as well,” she said.

Stutzman is only the second Jefferson Lab staff member to be named an AVS Fellow. The only other is Fred Dylla, former Jefferson Lab chief technology officer and associate director of the Free-Electron Laser, who was bestowed the distinction in 1998.

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Jefferson Science Associates, LLC, a joint venture of the Southeastern Universities Research Association, Inc. and PAE, manages and operates the Thomas Jefferson National Accelerator Facility, or Jefferson Lab, for the U.S. Department of Energy’s Office of Science.

DOE’s Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time. For more information, visit https://energy.gov/science.

https://www.jlab.org/news/releases/american-vacuum-society-honors-jefferson-lab-accelerator-scientist

Stutzman’s work contributes to the smooth and efficient operation of Jefferson Lab’s primary particle accelerator, the Continuous Electron Beam Accelerator Facility, a DOE User Facility. CEBAF accelerates electrons for use in nuclear physics experiments. Stutzman ensures that the machinery that produces the beam of electrons for CEBAF to accelerate is built to world-leading standards and is maintained in tip-top shape, that these electrons are generated in an ultra-high to extreme-high vacuum and thus contamination-free environment, and that they are imbued with desirable properties.

Source: https://bioengineer.org/american-vacuum-society-honors-jefferson-lab-accelerator-scientist/

american-vacuum-society-honors-jefferson-lab-accelerator-scientist

Ventureburn

ZwartTech launches Talent Foundation to equip Africans with digital skills

Lagos-based ZwartTech has announced the launch of its new edtech, Zwart Talent Foundation (ZTF) in a statement on 30 July 2021.

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Lagos-based ZwartTech has announced the launch of its new edtech, Zwart Talent Foundation (ZTF) in a statement today.

The foundation aims to equip young Africans with ICT skills necessary to close the growing African skills gap. The project has also set aside 70% of recruitment positions for African women.

87% of African CEOs are concerned about the digital skills gap

According to a report by PwC, featured in 2020’s Digital Skills Insights publication, 79% of global CEOs are worried about the availability of digital skills in their workforces, with 87% of African CEOs sharing the same concern.

“We launched the Zwart Talent Foundation to help Africans quickly combat poverty by giving them the chance to acquire tech skills as well as connecting them to international job opportunities. This will enable them to earn more and boost their economic status,” commented Nelson Tosin Ajulo, Chairman of ZTF in a statement.

ZTF’s three-pronged approach to tackling this skills gap means participants are led through the process from initial skills training to launching successful, sustainable careers.

The foundation aims to equip 2 000 Africans with critical ICT skills and recruit them into global companies over the next five years.

The Zwart Academy

Participants are first trained through the Zwart Academy in cybersecurity and Javascript for six months at no cost, giving them the necessary foundation to complete a one-year internship with Zwart Tech on completion.

“We have also realised that the quality of ICT education in Africa is inadequate. Considering this, students who join the Foundation will become Junior Developers in less than three years compared to attending a university and spending four or five years on the same course,” stated Ajulo.

Zwart Recruit

Zwart Recruit aims to support African ICT developers by connecting them with international companies looking for employees specialising in digital skills.

The Zwart Hub

The Hub is an accelerator programme that takes startups from concept to scaling their business on a global scale through mentorship and support from successful, experienced startup owners and investors.

While the global skills gap is worrying, considering automation may render many digital jobs obsolete in the near future, ZTF’s approach is different, according to Ajulo.

“Our approach is not only innovative, but it also saves time and will help tackle inequality faster, bridging gaps between social classes. The Academy training program involves a lot of practicals and it is free,” she concluded.

Read more: Edtech Go1 is SA’s first unicorn after closing $200m round

Read more: Transforming B2B payments could grow Africa’s local businesses [Opinion]

Featured image: Zwart Talent Foundation Chairman, Nelson Tosin Ajulo (Supplied)

“We launched the Zwart Talent Foundation to help Africans quickly combat poverty by giving them the chance to acquire tech skills as well as connecting them to international job opportunities. This will enable them to earn more and boost their economic status,” commented Nelson Tosin Ajulo, Chairman of ZTF in a statement.

Source: https://ventureburn.com/2021/07/zwarttech-launches-talent-foundation-to-equip-africans-with-digital-skills/

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Reduced microbial stability linked to soil carbon loss in active layer under alpine permafrost degra

Credit: NIEER Chinese researchers have recently discovered links between reduction in microbial stability and soil carbon loss in the active

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Chinese researchers have recently discovered links between reduction in microbial stability and soil carbon loss in the active layer of degraded alpine permafrost on the Qinghai-Tibet Plateau (QTP).

The researchers, headed by Prof. CHEN Shengyun from the Northwest Institute of Eco-Environment and Resources (NIEER) of the Chinese Academy of Sciences (CAS), and XUE Kai from University of Chinese Academy of Sciences, conducted a combined in-depth analysis of soil microbial communities and their co-occurrence networks in the active permafrost layer along an extensive gradient of permafrost degradation.

The QTP encompasses the largest extent of high-altitude mountain permafrost in the world. This permafrost is different than high-latitude permafrost and stores massive soil carbon. An often ignored characteristic of permafrost is that the carbon pool in the active layer soil is more active and directly affected by climate change, compared to deeper layers.

Triggered by climate warming, permafrost degradation may decrease soil carbon stability and induce massive carbon loss, thus leading to positive carbon-climate feedback. However, microbial-mediated mechanisms for carbon loss from the active layer soil in degraded permafrost still remain unclear.

In this study, the researchers found that alpine permafrost degradation reduced the stability of active layer microbial communities as evidenced by increased sensitivity of microbial composition to environmental change, promoted destabilizing network properties and reduced resistance to node or edge attacking of the microbial network.

They discovered that soil organic carbon loss in severely degraded permafrost is associated with increased microbial dissimilarity, thereby potentially contributing to a positive carbon feedback in alpine permafrost on the QTP.

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The results were published in PNAS in an article entitled “Reduced microbial stability in the active layer is associated with carbon loss under alpine permafrost degradation”.

This research was financially supported by the National Natural Science Foundation of China, the Strategic Priority Research Program (A) of CAS and the Second Tibetan Plateau Scientific Expedition and Research Program.

Triggered by climate warming, permafrost degradation may decrease soil carbon stability and induce massive carbon loss, thus leading to positive carbon-climate feedback. However, microbial-mediated mechanisms for carbon loss from the active layer soil in degraded permafrost still remain unclear.

Source: https://bioengineer.org/reduced-microbial-stability-linked-to-soil-carbon-loss-in-active-layer-under-alpine-permafrost-degra/

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