Japanese factory lets you knit your own socks with a bicycle

The workshop on socks provides an immersive experience, guiding participants through the complete process of sock-making. After the knitting phase, SOUKI’s skilled staff steps in to sew the toes and apply a press-finish, ensuring the socks are ready for wear.

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King George Military Hospital, 3rd floor Theatre Collection: Images from the History of Medicine (IHM) Contributor(s): Zwerdling, Michael, former owner Publication: [England] : [publisher not identified], [1915] Language(s): English Format: Still image Subject(s): Hospitals, Military, Operating Rooms, Surgeons, Nurses, King George Military Hospital Genre(s): Postcards Abstract: Black and white photograph of the 3rd floor operating theatre at King George Military Hospital, London, England. A surgeon is performing an operation with 7 medical personnel in attendance.

An operation at King George Medical Hospital, 1915

Dentists and physicians might favor sevoflurane over isoflurane, as sevoflurane is the least environmentally harmful ether

Not all greenhouse gases are created equally. Some, like carbon dioxide, linger in the atmosphere for centuries, while others, such as methane and nitrous oxide, are significantly more potent in their warming effects. Inhaled anesthetic gases, though a small percentage of total emissions, have an outsized impact due to their high global warming potential and direct release into the atmosphere.

Anesthesia gases contribute to greenhouse gas emissions, but solutions are emerging to mitigate their impact. Emissions in healthcare come from various sources, including waste management, single-use plastics, transportation, and food services. In addition, 3% of healthcare’s emissions stem from inhaled agents used during anesthesia.

A study performed at Michigan Medicine reveals that the use of less polluting inhaled anesthetic agents reduced harmful emissions by 50% in one year without impacting patient safety or outcomes.

“Tens of thousands of people undergo general anesthesia at Michigan Medicine every year. Inhaled anesthetics are a natural area to pursue reductions in emissions because, as greenhouse gases, they are so disproportionately bad for the environment,” said Douglas Colquhoun, M.B.Ch.B., assistant professor of anesthesiology at U-M Medical School.

“We’ve shown that small changes in our practice lead to big changes for the environment and, importantly, no changes for the patients.”

The findings culminate from The Green Anesthesia Initiative, launched at Michigan Medicine in March 2022, aimed to reduce the use of nitrous oxide, utilize less environmentally harmful inhaled fluorinated ethers, and increase the use of intravenous anesthetics.

Hospitals and medical professionals such as dentists are taking steps to lower the environmental footprint of anesthesia through:

Lower-GWP anesthetics: The initiative encouraged providers to reduce nitrous oxide (which is 270 times more potent than carbon dioxide at warming the environment) and favor sevoflurane over isoflurane, as sevoflurane is the least environmentally harmful ether. These changes resulted in an average decrease of more than 14 kg per case in CO2 equivalents.
Total Intravenous Anesthesia (TIVA): Using IV-based anesthesia, such as propofol, eliminates the need for inhaled gases and reduces greenhouse gas emissions.
Gas Capture Technologies: Some hospitals are adopting systems to capture and safely dispose of anesthetic gases rather than venting them directly into the atmosphere.

The team compared the output of CO2 equivalents traditionally used to measure the effect of greenhouse gases on the environment, as well as the amount of anesthetic used and patient outcomes such as post-surgery nausea and vomiting, pain scores, and unintended awareness and recall of the surgery. There were no changes in measured depth of anesthesia, pain scores, or postoperative nausea and vomiting.

“I think the important thing that we showed was that it is possible to significantly reduce the environmental impact of anesthesia. Even beyond the study period, we reduced our emissions by a huge amount in under three years.

“We did this while modernizing our care and improving safety for patients. This is a great example of where mindful choices, technology, and education all come together to make care better for our patients – both directly in the OR and in the environment in which we all live,” said David Hovord, M.B. B.Chir, clinical assistant professor of anesthesiology.

“Our individual and team efforts to save the planet are essential. The carbon emissions reduction accomplishments of anesthesiology and support teams are a point of pride at Michigan Medicine, as they are a demonstration of creativity, persistence, and teamwork,” said Tony Denton, Michigan Medicine’s senior vice president and chief environmental, social, and governance officer.

“These impressive results show that we can redesign our long-standing approaches to care without compromising patient safety, quality, and outcomes. This is a great example of what we can do to reduce environmental harm and improve public health across the communities and society we serve,” he said.

“We should all be proud and grateful for this important collaboration which emphasizes Michigan Medicine’s daily commitment to continuous improvement while finding new solutions that can save our planet and lives, simultaneously.”

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