WordNet

related by blood; not adopted
(craps) a first roll of 7 or 11 that immediately wins the stake
a notation cancelling a previous sharp or flat (同)cancel
someone regarded as certain to succeed; "hes a natural for the job"
being talented through inherited qualities; "a natural leader"; "a born musician"; "an innate talent" (同)born, innate
unthinking; prompted by (or as if by) instinct; "a cats natural aversion to water"; "offering to help was as instinctive as breathing" (同)instinctive
(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes; "natural yogurt"; "natural produce"; "raw wool"; "raw sugar"; "bales of rude cotton" (同)raw, rude
(of a musical note) being neither raised nor lowered by one chromatic semitone; "a natural scale"; "B natural"
existing in or in conformity with nature or the observable world; neither supernatural nor magical; "a perfectly natural explanation"
existing in or produced by nature; not artificial or imitation; "a natural pearl"; "natural gas"; "natural silk"; "natural blonde hair"; "a natural sweetener"; "natural fertilizers"
functioning or occurring in a normal way; lacking abnormalities or deficiencies; "its the natural thing to happen"; "natural immunity"; "a grandparents natural affection for a grandchild"
in accordance with nature; relating to or concerning nature; "a very natural development"; "our natural environment"; "natural science"; "natural resources"; "natural cliffs"; "natural phenomena"
the time when something ends; "it was the death of all his plans"; "a dying of old hopes" (同)dying, demise
the time at which life ends; continuing until dead; "she stayed until his death"; "a struggle to the last" (同)last
the absence of life or state of being dead; "he seemed more content in death than he had ever been in life"
the permanent end of all life functions in an organism or part of an organism; "the animal died a painful death"
the act of killing; "he had two deaths on his conscience"
the event of dying or departure from life; "her death came as a terrible shock"; "upon your decease the capital will pass to your grandchildren" (同)decease, expiry
the personification of death; "Death walked the streets of the plague-bound city"

PrepTutorEJDIC

『自然のままの』,自然にある,自然が作る / 自然に関する / 『当然の』,あたりまえの / 『生まれつきの』(inborn) / 生き写しの,真に迫った / 気どらない,飾らない / (音階が)本位の / (音階の)本位音;本位記号 / 《単数形で》《話》(…の)生来の達人,(…に)最初からうってつけの人《+『for』(『as』)+『名』》
〈U〉〈C〉『死』,死亡;死に方,死にざま / 〈U〉死んだ[ような]状体 / 《the~》(…の)絶滅,破滅《+『of』+『名』》 / 《the~》(…の)死の原因,命取り《+『of』+『名』》 / 《通例『D-』》死神(手に鎌(かマ)を持った黒装束の骸骨(がいこつ)で表される)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/12/07 19:39:16」(JST)

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A death by natural causes, as recorded by coroners and on death certificates and associated documents, is one that is primarily attributed to an illness or an internal malfunction of the body not directly caused by external forces. Contrary to the statement before, everything is natural at some point. For example, a person dying from complications from influenza (an infection) or a heart attack (an internal body malfunction) or sudden heart failure would be listed as having died from natural causes. Health departments discourage listing old age as the cause of death because doing so does not benefit public health or medical research.^[1] Old age is not a scientifically recognized cause of death; there is always a more direct cause,^{[citation needed]} although it may be unknown in certain cases and could be one of a number of aging-associated diseases.

By contrast, death caused by active intervention is called unnatural death. The "unnatural" causes are usually given as accident (implying no unreasonable voluntary risk), misadventure (accident following a willful and dangerous risk, which can include drug or alcohol overdose), suicide, or homicide.^[2] In some settings, other categories may be added. For example, a prison may track the deaths of inmates caused by acute intoxication separately.^[3] Additionally, a cause of death can be recorded as "undetermined".^[4]

References

^ "Reporting Causes of Death for the Elderly" (PDF). Oregon Health Authority. Retrieved 15 March 2016.
^ Bryant, Clifton D. (2003). Handbook of death & dying. Thousand Oaks: Sage Publications. p. 968. ISBN 0-7619-2514-7.
^ Stark, Martha (2000). A physician's guide to clinical forensic medicine. Totowa, NJ: Humana Press. p. 225. ISBN 0-89603-742-8.
^ Palmer, Brian (21 December 2009). "What, Exactly, Are "Natural Causes"?". Slate.com.

External links

Death by Natural Causes
Bristol Royal Infirmary Inquiry, Annex A: 'Unnatural death' and 'death by natural causes'
Actual Causes of Death in the US, 2000

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UpToDate Contents

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1. SIDSを含む乳児の予期せぬ死亡：初期マネージメント sudden unexpected infant death including sids initial management
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3. ナチュラルキラー（NK）細胞大顆粒リンパ球性白血病 natural killer nk cell large granular lymphocyte leukemia
4. 前立腺癌に対する局所療法に伴う血清PSAの上昇：定義、自然経過、およびリスク層別化 rising serum psa following local therapy for prostate cancer definition natural history and risk stratification
5. 周産期死亡率 perinatal mortality

English Journal

Sensitive electrochemical aptamer cytosensor for highly specific detection of cancer cells based on the hybrid nanoelectrocatalysts and enzyme for signal amplification.

Sun D1, Lu J1, Zhong Y2, Yu Y1, Wang Y1, Zhang B1, Chen Z3.
Biosensors & bioelectronics.Biosens Bioelectron.2016 Jan 15;75:301-7. doi: 10.1016/j.bios.2015.08.056. Epub 2015 Aug 24.
Human cancer is becoming a leading cause of death in the world and the development of a straightforward strategy for early detection of cancer is urgently required. Herein, a sandwich-type electrochemical aptamer cytosensor was developed for detection of human liver hepatocellular carcinoma cells (H
PMID 26332382

Heart-on-a-chip based on stem cell biology.

Jastrzebska E1, Tomecka E2, Jesion I3.
Biosensors & bioelectronics.Biosens Bioelectron.2016 Jan 15;75:67-81. doi: 10.1016/j.bios.2015.08.012. Epub 2015 Aug 13.
Heart diseases are one of the main causes of death around the world. The great challenge for scientists is to develop new therapeutic methods for these types of ailments. Stem cells (SCs) therapy could be one of a promising technique used for renewal of cardiac cells and treatment of heart diseases.
PMID 26298640