results low concentrations of agnps and short incubation times can have the maximum positive impact on the peroxidase activity, and in the present study the highest activity was seen at a concentration of 40 mg/l and two hours of incubation time. conclusions this study suggests that changes of enzyme activity can occur as a result of the effect of silver nanoparticles on enzyme conformation, in...

Anatomic pathology, along with the role of anatomic pathologists, has significantly evolved over past several years [...]

mandibular premolars have earned a reputation for having aberrant anatomy. the occurrence of three canals with three separate foramina in mandibular premolars is very rare. if predictable treatment of a three rooted mandibular premolar is planned, precise knowledge of clinical and radiographic anatomy is absolutely necessary. these teeth may also require special shaping and obturating technique...

a 16 year old female was referred to an oral and maxillofacial radiologist for evaluation of a radiolucent area at mesial radicular aspect of right maxillary central incisor which was detected accidentally during pre-orthodontic treatment check ups. clinical examination showed no particular signs or symptoms except for slightly tenderness to lateral percussion. second radiograph with altered ho...

anterior cruciate ligament (acl) reconstruction surgery has significantly evolved in recent years. this has led to development of new technologies that facilitate the diagnosis of acl injury and the application of state of the art methods for treatment. in particular, individualized anatomical acl reconstruction aims to restore native acl function. treatment is tailored to each patient based on...

STUDY OBJECTIVE We performed this in vitro study to determine the following: (1) if there is any significant difference in resistance between comparably sized endotracheal tubes (ETTs) in simulated anatomic oral and nasal conformations: (2) if neck flexion would increase the resistance of the ETT; and (3) if a wire-reinforced tube in simulated oral conformation would minimize the resistance inc...

introdouction: variations in root canal morphology pose a challenge for successful endodontic treatment. the root canal anatomy of the maxillary first molar has been often described as three roots with four canals (two mesiobuccal, one distobuccal, and one palatal). the occurrence of two palatal canals in one palatal root is quite rare. this report represents the case of a maxillary first molar...

conclusions in our conditions, the use of an anatomical landmark-guided procedure was the preferred treatment method due to limited resources and a lack of adequate training. background central venous cannulation is a current and important procedure used in the operating room and intensive care unit. some studies have shown that the application of ultrasound-guided cannulation can improve the s...

conclusions among anatomic variations, septal deviation and concha bullosa are predisposing factors for chronic sinusitis and we recommend that patients with chronic sinusitis be treated by surgical procedures. background identifying predisposing factors for chronic sinusitis is very important. objectives anatomical variation of the lateral nasal wall has been investigated in several studies an...

FT-IR and FT-Raman spectra of hirudin have been recorded from the native solid hirudin. The conformation of the molecule has been discussed on the basis of IR and Raman data. It has been concluded that hirudin molecule has a mixed a-helix and random coil conformation.