WordNet

make ones course or travel along a path; travel or pass over, around, or along; "The children traced along the edge of the dark forest"; "The women traced the pasture"
a just detectable amount; "he speaks French with a trace of an accent" (同)hint, suggestion
either of two lines that connect a horses harness to a wagon or other vehicle or to a whiffletree
an indication that something has been present; "there wasnt a trace of evidence for the claim"; "a tincture of condescension" (同)vestige, tincture, shadow
a visible mark (as a footprint) left by the passage of person or animal or vehicle
make a mark or lines on a surface; "draw a line"; "trace the outline of a figure in the sand" (同)draw, line, describe, delineate
follow, discover, or ascertain the course of development of something; "We must follow closely the economic development is Cuba" ; "trace the students progress" (同)follow
to go back over again; "we retraced the route we took last summer"; "trace your path" (同)retrace
copy by following the lines of the original drawing on a transparent sheet placed upon it; make a tracing of; "trace a design"; "trace a pattern"
discover traces of; "She traced the circumstances of her birth"
ammunition whose flight can be observed by a trail of smoke (同)tracer bullet
(radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes
an instrument used to make tracings
an investigator who is employed to find missing persons or missing goods
one of two or more atoms with the same atomic number but with different numbers of neutrons

PrepTutorEJDIC

〈C〉〈U〉(過去に存在した人・物・事件などの)『跡』,形跡,痕跡;(人・動物・車などの通った)跡,足跡《+of+名》 / 〈C〉(…の)かすかなきざし,気味,微量《+of+名》 / 〈C〉(記録計器の描く)線 / …‘の'『跡をつける』,‘を'追跡する,〈足跡など〉‘を'たどる / (…まで)…‘の'由来(起源,原因など)をさかのぼる《+名+back(+back+名)+to+名》 / (複写紙などを使って)…‘を'『[線をたどって]書き写す』 / 〈線・図形〉‘を'『描く』《+out+名,+名+out》 / 〈文字〉‘を'ていねいに書く / '‘を'捜しあてる,見つけ出す / (…に)『さかのぼる』《+back to+名》
(馬車や荷車などに馬や牛などをつなぐための)引き革,核き綱
追跡者(物) / 《米》粉失品(行方不明者)捜索係;行方不明者・粉失郵便物などに関する問い合わせ状 / 透写用器具,トレーサー / 曳光弾 / 追跡子(人体内などでの物質の行動を追跡するのに用いる放射性物質など)
同位元素,アイソトープ

UpToDate Contents

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1. 冠動脈疾患の核イメージングによる心筋生存能の評価 assessment of myocardial viability by nuclear imaging in coronary heart disease
2. 負荷時の放射性核種心筋血流イメージングの概要 overview of stress radionuclide myocardial perfusion imaging
3. 小児の身体組成測定 measurement of body composition in children
4. SPECT放射性核種心筋血流イメージングにおける減衰によるアーチファクト attenuation artifact in spect radionuclide myocardial perfusion imaging
5. 新生児や乳児の胆汁うっ滞への評価アプローチ approach to evaluation of cholestasis in neonates and young infants

English Journal

Assessing the use of δ18O in phosphate as a tracer for catchment phosphorus sources.

Tonderski K1, Andersson L2, Lindström G3, St Cyr R4, Schönberg R5, Taubald H6.
The Science of the total environment.Sci Total Environ.2017 Dec 31;607-608:1-10. doi: 10.1016/j.scitotenv.2017.06.167. Epub 2017 Jul 4.
PMID 28686890

Significance of stable carbon and bromine isotopes in the source identification of PBDEs.

Chen L1, Shouakar-Stash O2, Ma T3, Wang C1, Liu L4.
Chemosphere.Chemosphere.2017 Nov;186:160-166. doi: 10.1016/j.chemosphere.2017.07.109. Epub 2017 Jul 25.
PMID 28772183

Effect of dynamic bias on accuracy of radioactive particle tracking (RPT) technique at different data acquisition frequencies.

Kamalanathan P1, Kalo L1, Pant HJ2, Upadhyay RK3.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.Appl Radiat Isot.2017 Oct;128:13-21. doi: 10.1016/j.apradiso.2017.06.034. Epub 2017 Jun 23.
PMID 28683355