Cousinia (Asteraceae, Cardueae) cinsi çiçekli bitkiler içerisinde tür sayısı bakımından 50. büyük cins ve Asteraceae familyası yaklaşık 700 türle temsil edilen en cinslerden biridir. Bu çalışma, seksiyonu yer alan decolorans türünün anatomik, palinolojik mikromorfolojik özelliklerinin belirlenerek cinsin sistematiğine katkı sağlamak amacıyla yapılmıştır. C. polen özellikleri çalışılmış türe ait...

The photosensitized oxidation of 9,10-dimethylanthracene with singlet oxygen in acetonitrile was investigated using a safranin O/silica composite as an heterogeneous delivery system of the photosensitizer. The only detected product was the corresponding endoperoxide (9,10-endoperoxianthracene) and its formation rate depended on the initial concentration of DMA, the light intensity and the amoun...

AIM This study aimed to evaluate penetration of propylene glycol into root dentine. METHODOLOGY Safranin O in propylene glycol and in distilled water were introduced into root canals with and without artificial smear layer. Dye diffusion through dentinal tubules was determined spectrophotometrically. The time required for dye to exit through the apical foramen using propylene glycol and disti...

Simple and sensitive spectrophotometric methods for the determination of midazolam (MID) are proposed. The methods are based on the bromination of the drug using N-bromosuccinimide (NBS) and the excess oxidant is determined by either malachite green (MG) or safranin O (SO), the absorbances of which are measured at 617 or 522 nm for MID-MG and MID-SO, respectively. Under the optimized experiment...

We attempted to repair full-thickness defects in the articular cartilage of the trochlear groove of the femur in 30 rabbit knee joints using allogenic cultured chondrocytes embedded in a collagen gel. The repaired tissues were examined at 2, 4, 8, 12 and 24 weeks after operation using histological and histochemical methods. The articular defect filling index measurement was derived from safrani...

Information on anatomical structure is needed by breeders working on improvement for drought tolerance. For studying the effect of polyploidy on cassava anatomy and its significance to tolerance to drought, we induced a polyploidy type of a selected clone (UnB 530) by applying an aqueous solution of 0.2% colchicine on lateral buds for a period of 12 h. The stem identified as tetraploid was prop...

Two simple, sensitive and selective methods for the determination of Nateglinide in bulk and in pharmaceutical formulations were described. These methods are based on extraction of this drug into chloroform as ion-pair with basic dyes, Safranin O (SFNO) and Methylene blue (MB). The optimum conditions of the reactions of the developed methods were studied and optimized. The absorbance of the col...

The experiment was performed on 36 Wistar rats. On the first day of the experiment iodoacetate was administered to the left posterior knee joint of the 18 rats which composed Group I. The second group of 18 rats received additionally doxycycline (doxy) through the gastric tube in doses comparable with those of doxycycline used in humans. The experiment lasted 21 days. The animals were sacrifice...

We studied the alterations and distribution of the proteoglycan (PG) content of the remaining patellar articular cartilage after unilateral partial patellectomy in 13 rabbits. Sagittal sections of the patella were prepared and stained with Safranin O for quantification of changes in the PG content of the patellar articular cartilage using a commercially available imaging analysis system. Our fi...

the main factor affecting the economics of foam-assisted water alternative gas (fawag) process isthe loss of foaming agent by adsorption onto reservoir rocks. in this study, the effects of phases,surfactant concentration, salinity, adsorbents, and sacrificial agent on adsorption density wereinvestigated by special adsorption experiments. moreover, a series of fawag tests were performedto examin...