BACKGROUND Many online interventions designed to promote health behaviors combine multiple behavior change techniques (BCTs), adopt different modes of delivery (MoD) (eg, text messages), and range in how usable they are. Research is therefore needed to examine the impact of these features on the effectiveness of online interventions. OBJECTIVE This study applies Classification and Regression ...

Background: CT is a diagnostic imaging modality giving higher patient dose in comparison with other radiological procedures, so the calculation of organ dose in CT exams is very important. While methods to calculate the effective dose have been established (ICRP 26 and ICRP 60), they depend heavily on the ability to estimate the dose to radiosensitive organs from the CT procedure. However, dete...

The aim of the study is to present the experience of children diagnosed with Langerhans cell histiocytosis (LCH) at our center. Medical records of children with LCH were screened in terms of gender, age at diagnosis, clinical findings, risk groups, treatment modalities and outcome. The study included 9 patients with a median age of 22 months. The most common clinical finding was bone lesions (%...

hydatid disease is the most common infections worldwide, but it rarely involves multiple organs. herein, a 12-year-old boy is presented, who was admitted to children's medical center, tehran university of medical sciences, tehran, iran with symptoms of irritability, sleepless, and weak­ness of the extremities. patient's brain computed tomography (ct) scan with contrast media showed large multil...

The percentage of podophyllotoxin (PTOX) and its congener lignans were measured by HPLC in Linum mucronatum ssp. mucronatum (Linaceae) fresh plant organs. The highest amounts of PTOX (0.595 +/- 0.060% g/g dry wt) and 6-methoxypodophyllotoxin (MPTOX) (1.491 +/- 0.125% g/g dry wt) were found in the plant sexual organs. Whereas, the highest levels of beta-peltatin, 5'-demethoxy-MPTOX and yatein we...

Clinical heart transplantation is limited by the shortage of donor organs. The recent development of new donor organ maintenance systems may help to increase the utilization of available organs. This article reviews current experience with the Organ Care system for heart preservation.

Organ-specific characteristic of endothelial cells (ECs) is crucial for specific adhesion of cancer cells to ECs, which is a key factor in the formation of organ-specific metastasis. In this study, we developed a coculture of TMNK-1 (immortalized liver sinusoidal ECs) with 10T1/2 (resembling hepatic stellate cells) to augment organ-specific characteristic of TMNK-1 and investigated adhesion of ...

BACKGROUND Organ transplantation has become an effective means to extend lives; however, a major obstacle is the lack of availability of cadaveric organs. India has one of the lowest cadaver organ donation rates in the world. If India could increase the donor rate, the demand for many organs could be met. Evidence from high-income countries suggests that an organ donor registry can be a valuabl...

background: hydatidosis is one of the major zoonotic diseases that cause considerable public health problems in iran. the present study was designed to investigate pediatric hydatidosis in pa­tients referred to the children medical center hospital in tehran, iran during 2005-2010. methods : data were collected from the records of 17 patients referred to the center with hydatidosis. data include...