Structural-functional transformations of the ileal lymph nodes in pregnancy complicated by blood loss]

The microanatomic organization of iliac lymph nodes was studied in 24 pregnant Wistar rats (pregnancy term 21 days) after simulation of acute hemorrhage in them. A considerable decrease of a relative area occupied by a marginal sinus was revealed. This shows transport functional changes of lymph nodes in pregnancy complicated by hemorrhage.     

Effect of double insertion of homogeneously stained regions in chromosome 1 of the house mouse on recombination frequency

By means of genetic and cytogenetic analysis, the effect of cis heterozygosity for two insertions--Is(HSR; 1C5)1Icg and Is (HSR; 1E3)2Icg was studied. It was shown that the proximal point of Is is situated 8 cM distally from the ln gene. Crossing over is completely suppressed in the intermedial part of Chr. 1, where a single chiasma appears in normal mice. The frequency of double chiasmata in heterozygotes is significantly increased. They are localized at precentromeric and pretelomeric parts of Chr. 1. It is supposed that recombination block in the central region leads to a shift of the potential chiasmata in telomeric regions. This shifted telomeric chiasmata, in turn, allow the appearance of the second chiasmata in the centromeric region.     

Specifics of the Clark-Type O2-Electrodes Application in Biological Studies

Russian Journal of Plant Physiology - This paper is focused on the specifics of amperometric oxygen (O2) measurements in biological media (cultivation media, reaction mixtures, media designed for...     

Vergleichende histologie der hautorgane bei den chloraemiden (polychaeta).

Ohne ZusammenfassungErkärung der Abbildungen A knopfförmiger Auswuchs - Abg Schicht der ellipsoiden Gebilde - Ag Ausführungsgänge d. Schleimzellen - Aw Auswuchs (Röhre) der Hautorgane - B Schicht zwischen den Schiehten A - Bg Bindegewebe - Bgk Kerne der Bindegewebszellen - Bgl bindegewebige Lamelle - C Cuticula - Cp cuticularer Teil der Papille - Ch Chaetae (Borsten) - Con Concretion - E Epidermis - Ek Epidermiszellkerne - Ek ₁ dunkle Epidermiszellkerne - Gf Gefäße - Hs Hals der Hautorgane - Ho Hautorgan - K Kerne - Kn knopfförmiger Auswuchs - Knt knotenförmige Verdickungen - M Muskeln - Mk Kerne der Muskelzellen - N Nervenstrang - Nf Nervenfasern - Nz Nervenzellen (Ganglienzellen) - Nzk Kerne der Nervenzellen - Pho Hautorganring der Parapodien - Pig Pigmentkörnchen - Pna Periphere Nervenauswüchse - Pr Parapodien - R cuticuläre Röhrchen - Sch Schleim - Schz Schleimzellen - Schzk Schleimzellenkerne - Tr Trichter der Hautorgane - V Verdickungen - Kn knopfförmiger Auswuchs - Z Zellen