Semen analysis: Indispensable, yet non-ideal

Yet Another Ideal Decomposition Algorithm

The problem of decomposing an ideal into pure-dimensional components (resp. reduced pure-dimensional components) is a key step in several basic algorithms of commutative algebra. The computation of the radical can be performed as intersection of the reduced components (but we wonder why you should really perform this intersection that throws away additional insight in the structure of the ideal...

Non-ideal memristors for a non-ideal world

Memristors have pinched hysteresis loops in the V − I plane. Ideal memristors are everywhere non-linear, cross at zero and are rotationally symmetric. In this paper we extend memristor theory to produce different types of non-ideality and find that: including a background current (such as an ionic current) moves the crossing point away from zero; including a degradation resistance (that increas...

Semen analysis

In view of the well known sensitivity of the seminiferous epithelium to various stress factors and to chemicals one would expect that semen analyses would be part of many screening programs to detect dangerous chemicals and environmental hazards. This is not the case, and our knowledge about the production and functional properties of human spermatozoa is mainly based on analyses of specimens f...

Mechanical Non Surgical Therapy: An Indispensable Tool

Purpose: Traditional approaches to mechanical debridement of the tooth surface to remove tooth accretions continue to be an integral part of periodontal therapy. The purpose of the present study was to test the effectiveness of mechanical non-surgical therapy in subjects with moderate to severe gingivitis and periodontitis. Methods: Ten subjects of moderate to severe gingivitis/periodontits wer...

Perceptual capacity and the good GP: invisible, yet indispensable for quality of care.