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  2. Can you solve the GCHQ Christmas challenge?

    www.aol.com/news/solve-gchq-christmas-challenge...

    The deceptively tricky tasks require ingenuity and perseverance, GCHQ said. The 2024 card also includes extra layers for those who want to challenge themselves further, with additional elements ...

  3. UK spy agency GCHQ reveals its Christmas challenge for ... - AOL

    www.aol.com/uk-spy-agency-gchq-reveals-120637343...

    The puzzles are contained within GCHQ’s Christmas card, available to download. The card features a snowy photograph of the agency’s World War II home, Bletchley Park , where UK cryptologists ...

  4. GCHQ tests schoolchildren with festive puzzles in Bletchley ...

    www.aol.com/gchq-tests-schoolchildren-festive...

    The UK spy agency’s Christmas Challenge includes seven puzzles that test skills such as codebreaking, maths and analysis. GCHQ tests schoolchildren with festive puzzles in Bletchley Park card ...

  5. GCHQ - Wikipedia

    en.wikipedia.org/wiki/GCHQ

    [123] [124] The response to the 2004 challenge was described as "excellent", [125] and the challenge set in 2015 had over 600,000 attempts. [126] It also published the GCHQ Puzzle Book in 2016 which sold more than 300,000 copies, with the proceeds going to charity. A second book was published in October 2018.

  6. Hypertensive heart disease - Wikipedia

    en.wikipedia.org/wiki/Hypertensive_heart_disease

    In addition, hypertension precedes heart failure in 90% of cases, [7] and the majority of heart failure in the elderly may be attributable to hypertension. [17] Hypertensive heart disease was estimated to be responsible for 1.0 million deaths worldwide in 2004 (or approximately 1.7% of all deaths globally), and was ranked 13th in the leading ...

  7. List of ICD-9 codes 390–459: diseases of the circulatory ...

    en.wikipedia.org/wiki/List_of_ICD-9_codes_390...

    This is a shortened version of the seventh chapter of the ICD-9: Diseases of the Circulatory System. It covers ICD codes 259 to 282. The full chapter can be found on pages 215 to 258 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.

  8. GCHQ Christmas challenge: Agency reveals 2023 codebreaker - AOL

    www.aol.com/gchq-christmas-challenge-agency...

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  9. Tachycardia-induced cardiomyopathy - Wikipedia

    en.wikipedia.org/wiki/Tachycardia-induced_cardio...

    People with TIC most often present with symptoms of congestive heart failure and/or symptoms related to their irregular heart rhythm. [1] Symptoms of congestive heart failure can include shortness of breath, ankle swelling, fatigue, and weight gain. [2] Symptoms of an irregular heart rhythm can include palpitations and chest discomfort. [2]