@ncdcgov · Post #4348 · 09.08.2024 г., 09:38
Have you ever heard about #YellowFever❓ What causes it and how does it spread❓ Share your knowledge about #YellowFever with us in this short survey⬇️ 📋 https://forms.gle/QA83FP1XsrhHnXaBA
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Изворен канал @pythonotes · Post #269 · 7 јул.
Возможно, стоит пояснить разницу между синхронизацией из thread/process-safe и синхронизацией с помощью Lock🤔 Наша задача — заставить разные процессы и потоки обращаться к базе данных (или любым другим ресурсам) последовательно. Чтобы не случилось так называемого race condition, то есть состояние гонки. Это когда разные потоки или процессы пытаются одновременно что-то сделать с одним и тем же ресурсом. В этом случае нам нужна какая-то логика ограничения. Пока один процесс не завершил своё действие, другие не могут получить доступ к ресурсу. Так вот, thread-safe и process-safe означает что отдельно взятые операции записи в БД гарантированно будут последовательны. Запросы из разных процессов или потоков выстроятся в очередь и не будут мешать друг другу. Лучше всего когда этот блок реализован на уровне БД в виде атомарных операций или ещё как-то. Но зачем нам тогда еще дополнительный Lock? Этот способ синхронизации используется когда процесс никак не укладывается в одно действие и должен сделать множество операций прежде чем дать доступ следующему. В этом случае процесс ставит некий глобальный Lock на ресурс и никто другой, даже получив законное право на доступ, не может ничего сделать. Все ждут пока этот Lock не будет снят. Это решается на уровне приложения и правильность реализации полностью в вашей ответственности. Например, если забыли разблокировать или сделали перекрёстный Lock (Deadlock как на картинке), то всё зависнет в бесконечном ожидании. #basic
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Пребарај: #yellowfever
@ncdcgov · Post #4348 · 09.08.2024 г., 09:38
Have you ever heard about #YellowFever❓ What causes it and how does it spread❓ Share your knowledge about #YellowFever with us in this short survey⬇️ 📋 https://forms.gle/QA83FP1XsrhHnXaBA
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@ncdcgov · Post #3865 · 15.06.2023 г., 09:04
#YellowFever is transmitted through the bite of an infected mosquito. If you experience any of the following symptoms: Bleeding (from the nose, ears, or mouth) ➡️Sudden fever ➡️Body pain ➡️Severe headache Report to a health care facility near you immediately
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@ncdcgov · Post #3838 · 16.05.2023 г., 09:34
#Yellowfever is transitted through the bite of an infected mosquito. If you experience any of the following symptoms: Bleeding (from the nose, ears, or mouth) Sudden fever Body pain Headache Report to a health facility near you immediately
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@ncdcgov · Post #3868 · 20.06.2023 г., 08:04
#Yellowfever is a vaccine-preventable disease! A single dose of yellow fever vaccine keeps you protected for life. Visit a primary healthcare facility close to you to get the vaccine. #TakeResponsibility to stay safe and healthy.
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@ncdcgov · Post #3864 · 14.06.2023 г., 09:00
Mosquito control helps reduce the risk of #Yellowfever infection. Ensure you: ✅Get rid of stagnant water ✅Keep your environment clean ✅Keep your water containers covered properly ✅Wear protective clothing to prevent mosquito bites #TakeResponsibility
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@ncdcgov · Post #4318 · 26.06.2024 г., 11:38
As with #cholera, cases of #yellowfever also increase during the rainy season. Mosquito control helps reduce the risk of #Yellowfever infection. Ensure you: ✅Get rid of stagnant water ✅Keep your environment clean ✅Keep your water containers covered properly ✅Wear protective clothing to prevent mosquito bites #TakeResponsibility
@ncdcgov · Post #3736 · 17.02.2023 г., 09:59
A clean environment helps to prevent the spread of infectious diseases. Practice proper environmental hygiene at all times to prevent the spread of diseases such as #LassaFever, #Cholera, #COVID19 and #YellowFever.
@ncdcgov · Post #3872 · 23.06.2023 г., 09:22
A suspected case of #YellowFever is any person with sudden fever, vomiting, serious back pain, with yellowness of the eye and skin appearing within 14 days. Take all sick persons to a healthcare facility immediately for accurate diagnosis and treatment. #YellowFeverInfo
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@ncdcgov · Post #4330 · 15.07.2024 г., 09:46
Our guidelines on Infection Prevention & Control for #ViralHemorrhagicFevers include standard operating procedures and checklists to be used in the care & management of VHFs such as #LassaFever & #YellowFever. Healthcare workers are urged to read & share via 🔗https://ncdc.gov.ng/themes/common/docs/protocols/341_1707300274.pdf
@ncdcgov · Post #3703 · 24.01.2023 г., 12:18
Our guidelines on Infection Prevention & Control for #ViralHemorrhagicFevers include standard operating procedures & checklists to be used in the care & management of VHFs such as #LassaFever & #YellowFever Healthcare workers are urged to read & share via https://ncdc.gov.ng/themes/common/docs/protocols/111_1579986179.pdf
@ncdcgov · Post #3819 · 27.04.2023 г., 08:32
#Yellowfever is a vaccine-preventable disease spread through the bite of infected mosquitoes. A single dose of the yellow fever vaccine keeps you protected for life. #GetVaccinated #WorldImmunisationWeek
@ncdcgov · Post #4524 · 06.09.2025 г., 11:48
#Yellow Fever is an acute viral infection spread by the bite of infected mosquitoes . The disease can cause mild illness in some, but in severe cases it may lead to life-threatening complications. 👉 Protect yourself and those around you by: ✔️ Getting vaccinated ✔️ Preventing mosquito bites ✔️ Seeking medical care if symptoms appear Together, we can eliminate the threat of Yellow Fever. 💪✨ #YellowFever#StaySafe#HealthyLiving#NCDCNigeria