Abstract Background Premature ovarian insufficiency (POI) is a clinical syndrome defined by loss of ovarian function before the age of 40 years, characterized by elevated serum gonadotropin levels and decreased estrogen levels with menstrual disturbance.POI can be natural or iatrogenic such as after chemotherapy, radiotherapy and surgery.Case prese

The study was conducted in a dairy barn and nearby environment to determine the level of air bacterial and fungi contamination.Measurements were performed in morning, noon and evening sampling periods once a week during two autumn months inside the barn and in a 25 m distant barn environment.A Merck MAS-100 air sampler was employed Lip Tint with di

Soil salinization and heavy metal (HM) contamination are major challenges facing agricultural systems worldwide.Determining how soil microbial communities respond to these stress factors and identifying individual phylotypes with potential to tolerate these conditions while promoting plant growth could help prevent negative impacts on crop producti

This article explores the uses made of comparison in transcending the alleged invisibility of minorities.Beginning with the suggestive fact that African-American Ralph Ellison began conceiving of his seminal novel Invisible Man while a merchant marine stationed in wartime Swansea, South Wales, the article proceeds to explore the ways in which Welsh

The paper considers the class of Hamiltonian systems with two degrees of freedom.Based on the classical normal form, according to the rules of Born-Jordan and Weyl-MacCoy, its quantum analogs are constructed for which the eigenvalue problem is solved and approximate formulas for the energy spectrum are found.For particular values of the parameters