INTRODUCTION: Numerous surgical techniques regarding cesarean section performance were assessed. The usefulness of cervical dilatation during cesarean section, are still based on restricted research obtained data. PURPOSE: To assess the impact of intraoperative digital dilatation of cervix on postoperative pain. MATERIAL AND METHODS: The current research study is a Prospective parallel group randomized controlled double blind research trial that was conducted in obstetrics and gynecology hospital, Faculty of Medicine, Cairo University and Algezeera Hospital, Egypt from the period May 2018 until February 2018. RESULTS: The visual analog scale scoring level was statistically significantly higher in noncervical dilatation research group at 8th, 30th, 48 hours and 7th day postoperative (p values <.001, .001, .001, and .001, respectively). On the other hand at the 4th day postoperative, there was no statistical significant difference concerning VAS scoring level. CONCLUSIONS: Manual cervical dilatation during cesarean section is an innovative procedure to reduce postoperative pain in obese women. We thought that according to the results of the present study, cervical dilatation leads to proper continuous adequate evacuation and drainage of the intracavitary contents that leads to decrease the uterine subinvolution, retained blood and so, decreased postoperative pain and postoperative blood loss. CLINICALTRIALS.GOV ID: NCT03513237.

The driving patterns in developing countries, especially in metropolitan cities, are significantly different from those in developed countries or less-populated cities. However, most of the vehicles driven in these cities are tested using driving cycles that do not match those special driving characteristics, typically resulting in an underestimation or overestimation of the emission rates. In this study, a first driving cycle of passenger cars with gasoline engines is proposed for Greater Cairo, Egypt, based on a very large and diverse dataset of high-resolution onboard measurements, recorded using 87 cars driven in 10 distinctive areas in Greater Cairo. Two global driving cycles have been developed based on the commonly used K-means and the newly suggested K-medoids clustering techniques. The developed cycle based on the K-medoids algorithm, which was found more representative of the collected data, is a time series of speed, ~1500 s, covering a distance of ~5.4 km, with an average speed of 12.480 km/h, where 16.3% of the total duration spent in the idling mode. The superiority of the developed cycle over two commonly used cycles, namely the American transient FTP-75 cycle and the European modal ECE cycle, in terms of estimated fuel consumption and emission rates, is reported.

Background:Hypersensitivity pneumonitis (HP) is an increasingly recognized form of diffuse parenchymal lung disease. Krebs von den Lungen-6 (KL-6) is now classified as a human MUC1 mucin protein, and regenerating type II pneumocytes are the primary cellular source of KL-6/MUC1 in the affected lungs of patients with ILD. Serum KL-6/MUC1 levels have been demonstrated to be useful for evaluating various ILD.
Objective:
To determine the role of circulating KL-6 in evaluating the disease activity and management of HP.
Methods:
An observational cross-sectional study was conducted on 51 patients with HP. Serum KL-6 levels were measured. Patients were further assessed by chest high-resolution computed tomography (HRCT), pulmonary function tests, six-minute walk test, echocardiography, bronchioalveolar lavage, and/or transbronchial biopsy. Patients were divided into the fibrotic and non-fibrotic groups according to the HRCT findings.
Results:
The median serum KL-6 levels were significantly higher in HP patients as compared to the control group. The median serum KL-6 levels were found to be higher in the non -fibrotic HP group (1900 IU/mL) as compared to the fibrotic group (1200 IU/mL). There was a significant inverse correlation between serum KL-6 serum level and the dose of steroids as well as duration of steroid therapy.
Conclusion:
The presence of higher KL-6 levels in the non-fibrotic HP group implies its enhanced production by regenerating pneumocytes in response to alveolar injury. The significant association between serum KL-6 levels and the dose and the duration of steroid therapy emphasized the important role of steroids in stabilization of the disease.

OBJECTIVES: This study aimed to analyze the root canal morphology of first and second permanent mandibular molars among Makkah population by using cone-beam computed tomography (CBCT).

MATERIALS AND METHODS: CBCT images of two hundred eight patients were obtained from the Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia. In all images, mandibular first and second molars were evaluated for the number of roots and their morphology, number of root canals, canal configuration in each root according to Vertucci's classification, and the presence of a C-shaped canal.

RESULTS: Most of the mandibular first molars had two roots (96.5%) and three root canals (77.7%). Type IV canal configuration prevailed (75.6%) in the mesial roots, and type I canal configuration prevailed (71.7%) in the distal roots. For the mandibular second molars, the majority had two roots (96.3%) and three root canals (82.7%). Type IV canal configuration prevailed (48%) in the mesial roots and type I (99.1%) in the distal roots. C-shaped canals were detected in 5.7% of the mandibular first molars and 4% of the mandibular second molars. There was no statistical difference between the mandibular first and second molars ( > 0.05) in the shape of the roots and the presence of the C-shaped canals.

CONCLUSION: Most of the mandibular molars in Makkah population presented with two roots and three root canals. The incidence of three-rooted mandibular molars was low, and it was higher in the first molars than second molars. The type IV root canal system prevailed in mesial roots and type I in distal roots.