Should recombinations of radical pairs be considered as accompanied by measurements?

The so-called "phenomenological" kinetic equation for one-pair density operator for spin-selective reactions is defended. We derive this equation from the kinetic equation for density operator of all pairs which are treated as singlet and triplet bosons. There presented some reasons for inconsistency of measurement-like approach to the problem.Comment: 6 page

Separation and concentration of nonferrous and less-common metals on polyacrylonitrile sorbents in voltammetric analysis of aqueous solutions

Fibrous materials based on polyacrylonitrile were studied as filters for separation of interfering components and for selective concentration of monitored substances in voltammetric analysis of aqueous solutions. Methods of sample preparation developed in our work may be useful in ecomonitoring of aqueous objects in the area of impact of nonferrous metallurgical plants and electroplating manufactures

After treatment of industrial waste water to remove tungsten and molybdenum ions with polymer fibrous solvents

Chemisorption recovery of tungsten and molybdenum ions from aqueous solutions with the use of VION fibrous filtration materials based on copolymers of vinylpyridine and polyacrylonitrile was studied

After treatment of industrial waste water to remove tungsten and molybdenum ions with polymer fibrous solvents

Chemisorption recovery of tungsten and molybdenum ions from aqueous solutions with the use of VION fibrous filtration materials based on copolymers of vinylpyridine and polyacrylonitrile was studied

Separation and concentration of nonferrous and less-common metals on polyacrylonitrile sorbents in voltammetric analysis of aqueous solutions

Fibrous materials based on polyacrylonitrile were studied as filters for separation of interfering components and for selective concentration of monitored substances in voltammetric analysis of aqueous solutions. Methods of sample preparation developed in our work may be useful in ecomonitoring of aqueous objects in the area of impact of nonferrous metallurgical plants and electroplating manufactures

Current treatment approach to allergic disorders in pregnancy

Current treatment approach to allergic disorders in pregnancy E.I. Borovkova1, I.M. Borovkov2, V.I. Koroleva1, A.A. Pashchenko3 1Pirogov Russian National Research Medical University, Moscow, Russian Federation 2Sechenov University, Moscow, Russian Federation 3National Medical Research Center of Obstetrics, Gynecology and Perinatology named after V.I. Kulakov,&nbsp; Moscow, Russian Federation&nbsp; The article addresses the results of systematic review of current published data on management strategy of pregnancy associated with allergic disorders. Difficulties in the diagnosis are accounted for by physiological changes and failure to perform standard testing. All diagnostic procedures aimed at identifying allergic diseases should be carried out at the stage of pregnancy planning, which is associated with an increased risk of using skin tests and stress tests. Vasomotor rhinitis of pregnancy, allergic rhinitis, sinusitis, and rhinitis medicamentosa are the most common conditions during pregnancy. Their treatment should be started with non-medical therapies, i.e., nasal lavage with salt solutions, inhalations of cromolyn sodium preparations, corticosteroids, and H1 blockers. Treatment for atopic dermatitis includes emollients and oral antihistamines. Topical hydrocortisone formulations (2C) are additional therapies. Allergic reactions do not directly affect the risk of obstetric complications. Keywords: allergy, vasomotor rhinitis, allergic rhinitis, sinusitis, urticaria, dermatosis of pregnancy, corticosteroids, histamine receptor blockers. For citation: Borovkova E.I., Borovkov I.M., Koroleva V.I., Pashchenko A.A. Current treatment approach to allergic disorders in pregnancy. Russian Journal of Woman and Child Health. 2020;3(2):70–76. DOI: 10.32364/2618-8430-2020-3-2-70-76. </p