(1) For every relational structure L and for all elements x, y of Lop holds x ≤ y iff xx ≥xy. (2) Let L be a relational structure, x be an element of L, and y be an element of Lop. Then (i) x ≤xy iff x` ≥ y, and (ii) x ≥xy iff x` ≤ y. (3) For every relational structure L holds L is empty iff Lop is empty. (4) For every relational structure L holds L is reflexive iff Lop is reflexive. (5) For ev...

Several natural products containing tannins are used as traditional medicines for treatment of constipation; however, their pharmacological mechanism is not well understood. The laxative effects of gallotannin-enriched extract isolated from Galla Rhois (GEGR) were investigated using a constipation model induced by loperamide (Lop) injection. After analysis for antioxidant activity of GEGR, alte...

We investigate the approximability of minimum and maximum linear ordering problems (MIN-LOP and MAX-LOP) and related feedback set problems such as maximum weight acyclic subdiagraph (MAX-W-SUBDAG), minimum weight feedback arc/vertex set (MIN-W-FAS/ MIN-W-FVS) and a generalization of the latter called MIN-Subset-FAS/MIN-Subset-FVS. MAX-LOP and the other problems have been studied by many researc...

Objectives: To develop a multivariate model for risk factors specific to early onset preeclampsia (EOP) and late (LOP) in our entire population (singleton twin pregnancies). Material methods: 20 year-observational population-based historical cohort study (2001–2020). All consecutive births delivered at the Centre Hospitalier Universitaire Sud Reunion’s maternity ward. A standardized validated e...

There is a gap between our ability to reuse high-level concepts in software design and our ability to reuse the code implementing them. Language Oriented Programming (LOP) is a software development paradigm that aims to close this gap, through extensive use of Domain Specific Languages (DSLs). With LOP, the high-level reusable concepts become reusable DSL constructs, and their translation into ...

Raised intraocular pressure (lOP) is generally held responsible for causing visual loss in chronic simple glaucoma. It is therefore desirable that a safe level of lOP be maintained all the time. Elevation of lOP with change of body position has been suggested as one of the factors which result in tissue damage in low tension as well as in primary wide open angle glaucoma. Postural behaviour of ...

BACKGROUND Liriope platyphylla has long been reported as a therapeutic drug for treatment of various human chronic diseases including inflammation, diabetes, neurodegenerative disorders, obesity, and atopic dermatitis. To investigate the laxative effects of L. platyphylla, alterations in excretion parameters, histological structure, mucin secretion, and related protein levels were investigated ...

BACKGROUND Uridine (Urd), which has been reported as a major component of RNA, plays an important role in various biological process including neuroprotection, biochemical modulation and glycolysis, although its role in constipation has yet to be established. Therefore, in this study, we investigated the laxative effects of Urd on chronic constipation. METHODS The constipation phenotypes and ...

The Linear Ordering Problem (LOP) is an NP-hard combinatorial optimization problem that arises in a variety of applications and several algorithmic approaches to its solution have been proposed. However, few details are known about the search space characteristics of LOP instances. In this article we develop a detailed study of the LOP search space. The results indicate that, in general, LOP in...