#university of leiden

[materialsscienceandengineering]

Cracking the code: Why platinum electrodes corrode

Scientists from Leiden University and the Department of Energy's SLAC National Laboratory have uncovered the mysterious cause behind the rapid corrosion of platinum electrodes. This study paves the way for more affordable green hydrogen production and more reliable electrochemical sensors. The research is published in the journal Nature Materials. It's a strange quirk that has puzzled scientists for decades: for most metals, being negatively polarized protects against corrosion. But platinum electrodes can rapidly break down under these conditions. That's a problem because electrolyzers and many other electrochemical devices often rely on these negatively polarized platinum electrodes submerged in an electrolyte—essentially saltwater. Although platinum is an expensive but durable and generally stable option, it doesn't stay immune to degradation in these environments.

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[redrcs]

Stelae of Pergerger

Pergerger was "chief of the chiselers". He was the chief sculptor or "chiseler" at an artists workshop for the Temple of Ptah in Memphis. He has House of Ptah chiselled on his upper arms and chest to show his strong links to the god Ptah.

Exhibition at the National Museum of Australia. The exhibition is from the Dutch National Museum of Antiquities and Leiden University.

[student-gotta-go-blog]

Day 8/100 of productivity

It's Friday, almost weekend! And it is going to be a busy one. I worked this morning and spent my afternoon getting groceries for my birthday coming up, doing all my laundry, cleaning my desk, and ending my evening with some vocabulary reviewing.

I went into the city for some of my personal groceries, aka rice cakes for rice cake soup (떡국). It was very cloudy, but the temperature was good.

[kaylor]

i need to sit mr nolan down because apparently no one has before and tell him that dutch and german are two completely different languages

[postcard-from-the-past]

Dutch Royalties visiting the University of Leiden in 1933

Dutch vintage postcard

[jolterino-blog]

Fall in leiden

[marlinspirkhall]

My first thought was: "it seems to me the ability to make microscopic models might relate in some way to potential cancer treatments (like nanobots)"

And lo and behold:

“Researchers hope that microswimmers can be developed that can perform complex behaviors that can be used in a number of practical applications, including drug treatments.”

oh dang, it's gonna take them even longer to get home in that

[Image description a news screenshot reading "Physicists make tiny model of Star Trek's USS Voyager that's smaller than a human hair"]

[luegootravez]

© luegootravez

Pieter de la Court: 'Fortunate are they who seek neither to be slaves nor tyrants'

[kommabortsig]

KITLV_A1392_-_H.F._Siebenhar_tijdens_zijn_militaire_diensttijd_in_Nederland,_KITLV_179627.tiff

[garyartista]

Laying in Leiden

After a cold and wet week in Haarlem we traversed the town’s bridges as we navigated south, getting a bit lost for a few minutes when we were uncertain about interpreting our new navigation software. The day had turned partly sunny, a rarity to date. We found our way into the municipal harbor in the historical city of Leiden, welcomed by the friendly and helpful harbormaster and his assistant.…

[shofwankarim2]

Jejak Malam Pertama Bung Hatta di Belanda

Prof Dr Suryadi Sunuri Terima Buku Shofwan dan Riki, 1/8/3023 besama Prof Dr Minako Sakai UNSW Canberra (Dok) Menapaktilasi Malam-malam Pertama Bung Hatta di Belanda — Selasa, 27/12/2022 19:40 WIB Tehuis Voor Indische Studenten (Wisma Mahasiswa Hindia), Prins Mauritsplein 23 ‘s-Gravenhage/Den Haag, tempat Bung Hatta menginap selama minggu pertama beliau baru tiba di Belanda. OLEH Suryadi…

[student-gotta-go-blog]

Day 24/100 of productivity

Sunday, August 25

I wanted a different environment to study in, so I went to one of the cafes on my study list. This cafe is no longer on the list. They have a "no laptop" policy on the weekends, so I assumed I would be fine with just my notebook out, but no. It was more like a "no working" policy... in the middle of a college city while the libraries are still closed on the weekends. The staff was also very unkind about it, as if a sign that said "no laptops" clearly meant "no working" in total. I got lunch there and it was also disappointing for the price.

I had to continue reviewing at home, but I was completely out of the flow and didn't get much done at all anymore. After next weekend, the libraries will fully open again, and I won't be stuck in my room or trying to find cafes anymore.

[southeastasianarchaeology]

[Job] Postdoctoral researcher on literary and material cultures of Southeast Asia

Postdoc opportunity at Leiden University looking at Indian puranas in Southeast Asia. Deadline for application is 15 April 2023.

Postdoc opportunity at Leiden University looking at Indian puranas in Southeast Asia. Deadline for application is 15 April 2023. The Faculty of Humanities, Leiden Institute for Area Studies (LIAS) is looking for a postdoctoral researcher to focus on the influence of the Purāṇas on the literary and material cultures of Southeast Asia for the ERC Advanced Grant project “PURANA – Mythical Discourse…

[skycrorg]

Astrofísico comprueba existencia de demonios en el espacio que rompen la fuerza de gravedad en la Vía Láctea

Un doctorante en astrofísica de la Universidad de Leiden sorprende estudiando los dem...

Las estrellas más rápidas de la Vía Láctea se precipitan a más de mil kilómetros por segundo. El candidato a doctor Fraser Evans realizó una investigación sobre estas escurridizas estrellas de hipervelocidad y descubrió que tienen mucho que enseñarnos sobre los agujeros negros y las supernovas, por ejemplo. Impresión artística de una estrella de hipervelocidad. Crédito: ESA Las estrellas de…

[mindblowingscience]

Leiden Ph.D. candidate Jo-Anne Verschoor discovered that nearly 20% of the bacterial strains she studied could degrade plastic, though they needed some encouragement to do so. "Bacteria are just like people," says Verschoor. Her research was published in the journal Communications Biology. Some of the world's smallest organisms could play a significant role in solving the problem of plastic pollution. Increasingly, it is being discovered how certain bacteria can break down plastic into small particles, which can then be recycled. Moreover, Verschoor's research reveals that many more bacteria than previously thought can degrade certain types of plastics. The 27-year-old Leiden microbiologist was able to use a large collection of Streptomyces bacteria, which were already available at the university as scientists use them in the search for new antibiotics.

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