Spontaneous improvement in semen quality: regression towards the mean

Some examples of regression towards the mean.

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Improvement of Semen Quality by Feed Supplement and Semen Cryopreservation in Swine

Artificial insemination in pig offers many advantages in swine production in terms of a better disease control through semen quality control, a diverse male genetic distribution and an easiness of management. It is accepted that in developing countries, AI helps to improve the genetic profile. A number of sows can be inseminated using the same ejac‐ ulate instead of only one from natural mating...

the survey of the virtual higher education in iran and the ways of its development and improvement

این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.

Regression to the mean.

The evaluation of rehabilitation programmes may be distorted by regression to the mean: In a group of patients with extreme measurement values, these values tend to be less extreme on a following point in time due to merely random components and regardless of a "true" treatment effect. If this effect is not taken into account the effectiveness of rehabilitation programmes may be estimated wrong...

The Relationship between Occupation and Semen Quality