Background: Amniotic band Band syndrome Syndrome (ABS) is a rare congenital anomaly which may affecting any region of the fetus. Here, we reported a case of ABS involving the upper limbs resulted in amputation, syndactyly, and lymphedema of several fingers. One of the the amputated finger was reimplanted on to the upper back of the fetus between two scapular bone. The finger-like mass had no osseous tissue.

Introduction. Retinal detachment is a serious complication after lensectomy in traumatic cataract. It is due to traumatic retinal breaks or vitrous traction that occur after sharp and blunt trauma. Methods. Prophylactic effect of encircling band was evaluated. 247 patient"s who had undergone lensectomy due to traumatic cataract were divided in two groups. In the case group (52 patients) encircling band was used intra operatively and in the control group (195 patients) were operated on without using encircling band. Results. After follow up for at least one year, retinal detachment was not seen in any case of interventional group but was seen in 6.66 percent of the control group (P<0.05). Discussion. It is advised that this prophylactic technique be applied for traumatic cataract surgery.

The radar receiver protector is one of the important components in the radar system. It prevents the receiver from noise and powerful Electromagnetic wave. In this paper, the simulations are done for different structures of the radar receiver protector using COMSOL software in the X-band frequency.The simulation selected structure is based on the WR90 waveguide structure. In this simulation, parameters such as reflection and transmission coefficients, as well as the maximum field intensity created within different radar receiver protector structures, have been investigated. The studied structures include iris-diaphragms-pairs, posts-and-diaphragms, truncated-cones-and-diaphragms, Dumbell-pointed-post-tunable, Dumbell-pointed-post, and Dumbell structures.The simulation results show that the internal structure of the waveguide has an important parameter on the filtration performance, the frequency selection and intensity modes created on the tips of the electrodes. Dumbell-pointed-posts-tunable among the investigated structures due to the frequency modes and high intensity of the electric field at the tip of the electrodes, it is superior to other structures.

The U-slot micro-strip patch antennas were originally developed for bandwidth broadening applications. This study presents a transmission line feed to modify the U-slot stacked rectangular micro-strip patch antenna forUltra-Wide Band (UWB) communications. The modified antenna has a U-cut loaded with parallel slits and cornerslots and is printed on a dielectric substrate of FR4 with relative permittivity (ε r) of 4. 4, the thickness of 1. 59 mmand the tangent loss of 0. 025. The results show that the proposed antenna achieves an impedance bandwidth of11. 55 GHz (2. 1 – 13. 65 GHz) with the return loss < (-10) dB. This antenna can be employed for ultra-widebandapplications in S Band, C Band and X Band. The proposed patch antenna is designed and simulated by using IE3D14. 0 software. Simulation results are presented in terms of the resonant frequency, the return loss, VSWR, theimpedance bandwidth and the impedance matching.