Friction influences the nature of transfer layer formed at the interface between tool and metal during sliding. In the present investigation, basic studies were conducted using “Inclined Scratch Test” to understand the mechanism of transfer layer formation during sliding of super pure aluminium pins on EN8 steel flats of different surface roughness under both dry and lubricated conditions. The ...

Effects of DL-palmitoylcarnitine (PC), an inhibitor of calciumactivated, phospholipid-dependent protein kinase (protein kinase C), on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced cell differentiation were investigated in human promyelocytic leuke mia cells (HL-60). TPA caused HL-60 cell adhesion concomitant with morphological changes, and an increase in acid phosphatase activity. The medi...

the adhesive interaction between tumor cells and the host cells or the extracellular matrix plays a crucial role in tumor metastasis. to evaluate the mediation of cell adhesion by daphne mucronata, an anti-cancer medicinal plant in iranian folk medicine, the adhesion of thrombin activated human platelets to the cultured monocytes or hl-60 cells was investigated under the effect of the plant ext...

objective(s)the purpose of this study holds, for the first time, an evaluation of the intraperitoneal curcumin lavage on the development of post-operative intra-abdominal adhesions.materials and methodsthirty male wistar rats were randomized into five groups. the rats were administered anesthesia and underwent surgery in order to create intra-abdominal adhesions. before the abdomen was closed, ...

mast cells play an important role in a variety of inflammatory diseases, particularly asthma and atopy. peroxisome proliferator-activated receptor gamma (pparγ) is a member of the large nuclear hormone  receptor  transcription  factor  superfamily, and  has  been  recently implicated in the anti-inflammatory response. to investigate a possible role for pparγ in human mast cells, we studied the ...

introduction: adhesion formation after pelvic surgery is still a major cause of several morbidities such as infertility, pain, bowel obstruction and subsequent intra-operative complications. our aim was to investigate the effects of d-penicillamine in preventing adhesion formation in rat uterine horn. methods: this experimental trial was conducted on 30 rats. the rats were randomly assigned to ...

objective(s): abdominal adhesions are one of the most important problems, occurring after intra-abdominal surgery in more than 90% of cases. this condition is the leading cause of bowel obstruction, infertility, and abdominal/pelvic pain. gold nanoparticles (gnps) have been shown to be non-toxic and exhibit anti-inflammatory, anti-angiogenic and antioxidant activities. the purpose of this study...

objective: to determine the preventive effects of local administration of simvastatin for postoperative intra-abdominal adhesion formation in animal model of rat . methods: in this experimental study, 32 wistar albino rats as the animal model of intra-abdominal adhesion formation were included. adhesions were induced in all the animals via abrasion of the peritoneal and intestinal surface durin...

Friction originates at the area of real contact which depends on (changing) surface topography. Observing and measuring multi-asperity interfaces is difficult, making it challenging to quantitatively study interplay between frictional force In this paper, we systematically manipulate topography use a fluorescence microscopy-based visualization technique reveal interplay. We demonstrate good agr...

Herein, the effect of an applied moderate (≈240 mT) magnetic field on work adhesion (WoA) mechanically soft (the shear modulus ≈10 kPa) magnetoactive elastomer (MAE) samples with two different mass fractions (70 and 80 wt%) carbonyl iron powder (CIP) is concerned. The unfilled sample used for comparison. Due to some sedimentation filling particles, concentration inclusions in thin (≈10 μm) subs...