WordNet

of first rank or importance or value; direct and immediate rather than secondary; "primary goals"; "a primary effect"; "primary sources"; "a primary interest"
a preliminary election where delegates or nominees are chosen (同)primary_election
one of the main flight feathers projecting along the outer edge of a birds wing (同)primary feather, primary quill
(astronomy) a celestial body (especially a star) relative to other objects in orbit around it
not derived from or reducible to something else; basic; "a primary instinct"
painful menstruation

PrepTutorEJDIC

『第一の』,『主要な』 / 『初期の』,『初等の』,初級の / 『根本的な』,基本的な,本来の,直接的な / 《名詞の前にのみ用いて》(回路・コイル・巻き・電流などが)一次の / 原色(三原色の一つ) / 《米》=primary election

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Abnormal structure and functional connectivity of the anterior insula at pain-free periovulation is associated with perceived pain during menstruation.

Dun WH1, Yang J1, Yang L1, Ding D1, Ma XY1, Liang FL1, von Deneen KM2, Ma SH1, Xu XL1, Liu J3, Zhang M4.
Brain imaging and behavior.Brain Imaging Behav.2016 Nov 10. [Epub ahead of print]
Neuroimaging studies have demonstrated the critical role of the insula in pain pathways and its close relation with the perceived intensity of nociceptive stimuli. We aimed to identify the structural and functional characteristics of the insula during periovulatory phase in women with primary dysmen
PMID 27832449

Comparison of menstrual disorders in hospital nursing staff according to shift work pattern.

Albert-Sabater JA1, Martínez JM2, Baste V3,4, Moen BE5, Ronda-Perez E6.
Journal of clinical nursing.J Clin Nurs.2016 Nov;25(21-22):3291-3299. doi: 10.1111/jocn.13371. Epub 2016 Aug 17.
AIM AND OBJECTIVE: To assess the association between work in a rotating shift schedule and menstruation characteristics among nurse staff in a prospective study.BACKGROUND: Rotating shifts have been linked to alterations in the reproductive cycle. In the case of menstrual alterations, the conclusion
PMID 27530371

Naproxen, paracetamol and pamabrom versus paracetamol, pyrilamine and pamabrom in primary dysmenorrhea: a randomized, double-blind clinical trial.

Ortiz MI1, Murguía-Cánovas G2, Vargas-López LC3, Silva R4, González-de la Parra M5.
Medwave.Medwave.2016 Oct 24;16(9):e6587. doi: 10.5867/medwave.2016.09.6587.
INTRODUCTION: Dysmenorrhea is caused by the discharge of prostaglandins into the uterine tissue; therefore, non-steroidal anti-inflammatory drugs (NSAIDs) are the established initial therapy for dysmenorrhea. Dysmenorrhea therapy may include the administration of drug monotherapy or combination ther
PMID 27813503