We need to translate Russian news post into English, format per rules.
First line: short headline under 90 chars, no markdown, no '#'.
Then blank line, then body split into short paragraphs (2-3 sentences each), separated by blank lines.
Wrap few genuinely important facts — key numbers, percentages, drug/company/gene names, dates — in double asterisks . At most 4-5 per post, never a whole sentence.
Wrap study/journal citations and publication references in single underscores _ (e.g., Nature Aging, July 2026).
We need to preserve all facts, numbers, names, citations exactly. No commentary.
We need to identify citations: The text mentions "в научном журнале PLOS ONE вышла расчётная работа о витрификации подколенной артерии — сосуда за коленом — длиной почти 21 сантиметр." So citation: PLOS ONE. Also mention "В 2023 году витрифицированные почки крыс хранили при −150 °C, разогревали с помощью наночастиц и пересаживали ; все животные прожили полный 30-дневный период наблюдения." That is a prior study maybe but not a citation. We'll treat PLOS ONE as citation.
We need to wrap study/journal citations and publication references in single underscores. So PLOS ONE.
Now important facts: numbers: date 18 августа (August 18). length almost 21 centimeter. stress values: 1.25 MPa vs 1.5 MPa. nanowarming: temperature difference 23°C. stress increased approx 1.7 times, from 1.5 to 2.55 MPa. Transfer: peak stress rose from 0.8 to 7.6 and 8.6 MPa. Also mention -150°C storage, 30-day observation. Also mention 40 seconds and one minute.
We need to select at most 4-5 key facts to bold. Choose: date August 18, length ~21 cm, stress values (1.25 MPa, 1.5 MPa), temperature difference 23°C, stress increase to 2.55 MPa, peak stress 8.6 MPa maybe. But we need max 4-5. Let's pick: August 18, ~21 cm length, 1.25 MPa vs 1.5 MPa, 23°C temperature difference, peak stress 8.6 MPa. That's 5.
Wrap each in double asterisks.
Now ensure we don't bold whole sentences.
We need to embed bold within sentences.
Now produce headline: maybe "Modeling Reveals Mechanical Stress Risks in Vitrified Popliteal Artery During Rewarming". Count chars: let's count: "Modeling Reveals Mechanical Stress Risks in Vitrified Popliteal Artery During Rewarming". Count: M(1) o2 d3 e4 l5 i6 n7 g8 space9 R10 e11 v12 e13 a14 l15 s16 space17 M18 e19 c20 h21 a22 n23 i24 c25 a26 l27 space28 S29 t30 r31 e32 s33 s34 space35 R36 i37 s38 k39 s40 space41 i42 n43 space44 V45 i46 t47 r48 i49 f50 i51 e52 d53 space54 P55 o56 p57 l58 i59 t60 e61 a62 l63 space64 A65 r66 t67 e68 r69 y70 space71 D72 u73 r74 i75 n76 g77 space78 R79 e80 w81 a82 r83 m84 i85 n86 g87. That's 87 characters, under 90. Good.
Now blank line.
Now body paragraphs.
We need to split into short paragraphs 2-3 sentences each.
Let's craft paragraphs:
Paragraph 1: Introduce the study: On August 18, a computational study on vitrification of the popliteal artery (nearly 21 cm long) was published in PLOS ONE. Authors calculated how container shape, heating method, and transfer between setups affect mechanical stress that could cause cracking.
That's 2 sentences.
Paragraph 2: Explain vitrification and stress origin: During vitrification the cryoprotective solution solidifies without ice crystals, becoming glass‑like. On rewarming, vessel, solution, and container heat at different rates and expand unevenly, generating mechanical stress; a crack starting in the solution around the vessel can propagate through the whole system.
That's 2-3 sentences.
Paragraph 3: First set of calculations: Authors modeled the long flexible artery as a flat spiral or coils in cylindrical containers. Coiling changes the heat path to the vessel. When heat was applied through the container walls, coils in a cylinder with an internal channel gave the lowest maximum stress: 1.25 MPa versus 1.5 MPa for a simple spiral.…
🔗 Read original →
August 26, 2026 3
