Kraft Lignin-Derived Microporous Nitrogen-Doped Carbon Adsorbent for Air and Water Purification.

The study presents a streamlined one-step process for producing highly porous, metal-free, N-doped activated carbon (N-AC) for CO capture and herbicide removal from simulated industrially polluted and real environmental systems. N-AC was prepared from kraft lignin─a carbon-rich and abundant byproduct of the pulp industry, using nitric acid as the activator and urea as the N-dopant. The reported carbonization process under a nitrogen atmosphere renders a product with a high yield of 30% even at high temperatures up to 800 °C.

[Efficacy of medicamentous treatment of transient premenstrual phlebopathy of lower limbs].

Aim: The purpose of the study was to examine changes of the clinical pattern and the great saphenous vein in women with premenstrual leg heaviness and distal oedema in repetitive 15-day courses of micronized purified flavonoid fraction, initiated in the second half of the menstrual cycle.

Patients And Methods: A total of 39 parous women (mean age 31.3±7.

Rice Husk Hydrolytic Lignin Transformation in Carbonization Process.

Lignin processing products have an extensive using range. Because products properties depend on lignin precursor quality it was interesting to study lignin isolated from rice husk being a large tonnage waste of rice production and its structural transformations during carbonization. Lignin isolated by the thermal hydrolysis method with HSO 1 wt % solution and its carbonized products prepared under different carbonization conditions were characterized using elemental analysis, IR, TPD-MS, XRD, TEM, and EPR.

[Transitory (evening) venous reflux in patients with intracutaneous varicosity and medicamentous correction thereof].

The authors carried out a study aimed at revealing transitory refluxes along the great saphenous vein (GSV) in patients with intracutaneous varicosity, and at investigating the possibility of removing them by means of preparations of micronized purified flavonoid fraction (MPFF). The study included a total of one hundred and forty-seven 21-to-47-year-old (mean age 31±4.4 years) women presenting with cutaneous varicosity (class C1s).

Orthostatic-loading-induced transient venous refluxes (day orthostatic loading test), and remedial effect of micronized purified flavonoid fraction in patients with telangiectasia and reticular vein.

Background: Orthostatic loading can induce transient venous reflux (TVR). Among patients with telangiectasia and reticular varices, we determined the proportion that developed TVR after a day of orthostatic loading (DOL test), and investigated the remedial effects of micronized purified flavonoid fraction (MPFF).

Methods: All 96 patients enrolled in this study had telangiectasia and reticular varices.