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Posts tagged “pictures”

Heat and Humidity for Bioburden Reduction of N95 Filtering Facepiece Respirators

Anderegg, L.; Doyle, J.; Gardel, M. L.; Gupta, A.; Hallas, C.; Lensky, Y.; Love, N. G.; Lucas, B. A.; Mazenc, E.; Meisenhelder, C.; Pillarisetti, A.; Ranard, D.; Squires, A. H.; et al. Heat and Humidity for Bioburden Reduction of N95 Filtering Facepiece Respirators. Applied Biosafety 2021.

Current Understanding of Ultraviolet-C Decontamination of N95 Filtering Facepiece Respirators

Grist, S. M.; Geldert, A.; Gopal, A.; Su, A.; Balch, H. B.; Herr, A. E.; Rampazzi, S.; Smullin, S.; Starr, N.; Rempel, D.; Agarwal, P.; Altemose, N.; Chen, T.; Hu, G.; Tung, M. C.; Pillarisetti, A.; Robinowitz, D.; Shless, J. S., Current Understanding of Ultraviolet-C Decontamination of N95 Filtering Facepiece Respirators. Applied Biosafety 2021.

Evaluation of low-cost methods to decontaminate N95 filtering facepiece respirators in low-resource settings during the COVID-19 pandemic

With Pengbo Liu, PhD, MPH (Co-PI), Christine Moe, Danny Wilson, Ashley Styczynski, Nichole Starr, and N95Decon.

The global supply of personal protective equipment (PPE) - including surgical masks, N95 filtering facepiece respirators, gloves, and gowns - has been limited during the current pandemic. PPE serves as a first line of defense for healthcare workers and can play an important role in helping slow transmission of airborne pathogens like SARS-CoV-2. Our work focuses on two PPE-related aspects of the current pandemic. First, we will survey healthcare workers and facilities globally on their supply of PPE and usage practices. Second, we will evaluate methods of decontaminating cloth, surgical, and N95 masks that may be relevant for low-resource settings. Taken together, our findings can help optimize resource allocation and extend the use of existing supplies of PPE using decontamination methods suitable for low-resource settings.

Traditional cooking and household energy use in the Library of Congress online archives

In the past few weeks, a lot of people have been mining the LoC photo databases for images of public works posters, images of cities early in their development, etc. The archive is outstanding and a lot of the pictures, negatives, schematics, and drawings are available online in multiple resolutions.

I ran some searches for household energy, hearths, cooking fire, cooking stoves, etc and found a number of fascinating results. Many of the pictures from the US were not available online yet - in particular, two libraries of “cooking technologies” from the 1920s and 1930s weren’t around. I’m working on getting access to those through some data request channels. A few that were accessible are below. The majority are from Sikkim and were taken by Alice Kandell between 1965 and 1971. The large one above is supposedly from Jerusalem and was taken between 1900-1920. The seventh one below is from 1908 in Paterna, Spain.

Clearly a wealth of interesting historical information in the archives. Looking forward to further explorations.

The Imported Landscapes of Petur Thomsen

Petur Thomsen, an Icelandic photographer, has been documenting “man’s attempts to dominate nature” and “man’s transformation of nature into environment.”

One set of photographs - his “Imported Landscape” series — is particularly striking. It examines the impact of the Karahnjukar Hydroelectric Project in eastern Iceland.

The project consists of three dams, one of them being the highest in Europe, and a hydroelectric power plant. The dams block among others the big glacial river Jokula a Dal, creating the 57km2 artificial lake Halslon.

The power plant is primarily being constructed to supply electricity to a new Aluminum smelter built by Alcoa of USA in the fjord of Reyoarfjorour on the east coast of Iceland.

The artificial lake and the constructions have spoiled the biggest wild nature in Europe. Making the Karahnjukar project, not only the biggest project in Icelandic history, but also the most controversial one. There have been a lot of debates about this project. Environmentalists are fighting for the preservation of the wild nature while those supporting the project talk about the need to use the energy the nature has to offer.

The best way for me to participate in the debate was to follow the land in its transformation.

Environmental degradation in the name of energy production — even ‘clean’ energy production — is nothing new. Thomsen’s take starkly frames the respective powers of man and nature as antagonists. For me, he conveys perfectly our conflicting senses of nostalgia/loss and awe/control. His photos embody contrasting, awkward meanings of power — electricity, energy, dominion, destruction, beauty.

Via The Fox is Black.

The Yellow River

Zhang Kechun is a 32 year old Chinese photographer born in Sichuan, China. He’s created a large-format collection of photographs called “The Yellow River Surging Northward Rumblingly.” The images — with their muted tones — showcase a stunning, vast landscape mottled with people. The large intrusions and scars on the scenery — smoke stacks, superhighways, cooling towers — appear unnatural, huge, imposing. Large compared to the scale of the people in his photos, but small in comparison to the enormity of the surroundings. Really impressive work.

It is a river, with its unity of bend and straight, fullness and imperfection, rapid and slow, active or tranquil, majestic and elegant, simple and wonderful, bright and dark, light and color, form and spirit, visionary and real… It embraces people’s reality and fate, joy and sorrow, firmness and leisure.

I determined to follow its pace, with all my courage and my… large format camera.

See the whole set here.