Study of Low Terahertz Radar Signal Backscattering for Surface Identification.

This study explores the scattering of signals within the mm and low Terahertz frequency range, represented by frequencies 79 GHz, 150 GHz, 300 GHz, and 670 GHz, from surfaces with different roughness, to demonstrate advantages of low THz radar for surface discrimination for automotive sensing. The responses of four test surfaces of different roughness were measured and their normalized radar cross sections were estimated as a function of grazing angle and polarization. The Fraunhofer criterion was used as a guideline for determining the type of backscattering (specular and diffuse).

Experimental Evaluation of 79 and 300 GHz Radar Performance in Fire Environments.

This paper presents an experimental study of the propagation of mm-wave/low-THz signals in the frequency ranges of 79 and 300 GHz through fire. Radar performance was investigated in various real scenarios, including fire with strong flame, dense smoke and water vapour. A stereo video camera and a LIDAR were used as a comparison with other common types of sensors.

Underwater Optical Imaging for Automotive Wading.

An underwater imaging system was investigated for automotive use in highly scattered underwater environments. The purpose of the system is the driver's information about hidden obstacles, such as stones, driftwood, open sewer hatches. A comparison of various underwater vision methods was presented by the way they are implemented, the range reached, and the cost of implementation.

Automotive System for Remote Surface Classification.

In this paper we shall discuss a novel approach to road surface recognition, based on the analysis of backscattered microwave and ultrasonic signals. The novelty of our method is sonar and polarimetric radar data fusion, extraction of features for separate swathes of illuminated surface (segmentation), and using of multi-stage artificial neural network for surface classification. The developed system consists of 24 GHz radar and 40 kHz ultrasonic sensor.

FPGA design for dual-spectrum Visual Scene Preparation in retinal prosthesis.

A method of Visual Scene Preparation for the patients suffering Retinitis Pigmentosa is implemented in hardware for the first time. The scene is captured with two cameras, one visible spectrum and one infra-red, in order to distinguish between the live and non-live objects. The live objects are subsequently emphasized in the output image, thus helping a patient to see the most significant detail with the healthy part of the retina.

Infrared to ultraviolet light conversion in laser-cluster interactions.

Spectrum conversion phenomena accompanying ionization of atomic clusters by few-cycle laser pulses are studied with the free (natural) plasma oscillations taken into account. These oscillations are found to be excited at the pulse leading front and to persist after passage of the pulse through the cluster, thus increasing the energy deposition to the plasma and affecting dramatically the scattered radiation spectrum: the Xe cluster irradiated by the near-infrared (800 nm) single-cycle pulse reradiates as a source of the ultraviolet light (360 nm).

Use of autologous bone marrow mesenchymal stem cells for healing of free full-thickness skin graft in a zone with pronounced hypoperfusion of soft tissues caused by arteriovenous shunting.

A combined graft consisting of a free full-thickness skin flap and cultured autologous fibroblast-like bone marrow mesenchymal stem cells was effectively implanted and healed on the facial soft tissue defect after removal of a pathological vascular conglomeration in a female patient with congenital arteriovenous macrofistulous dysplasia. In order to reduce bloodflow intensity and arteriovenous shunting, repeated endovascular occlusion and transcutaneous ligature of regional vessels from the carotid artery basin feeding the pathological zone was carried out followed by resection of this tumor-like vascular formation.

[Evaluation of efficacy of cyproterone acetate monotherapy in prostatic cancer].

The trial conducted in the Primorsk Regional Cancer Hospital of Vladivostok and P. A. Herzen Moscow Research Cancer Institute studied effectiveness and tolerance of cyproteron acetate (CA) monotherapy and maximal androgenic block (MAB) (CA + surgical or CA + drug castration).

[The use of chronic epidural electrostimulation of the spinal cord in children with spastic diplegia--a type of infantile cerebral palsy].

The authors' first experience with spinal cord stimulation (SCS) at the lumbar level in the treatment of cerebral palsies (CP) in children aged 3-11 years who had lower spastic paraparesis of varying severity is presented. Complex clinical and physiological studies of all 9 children were made before and after surgery (follow-ups lasting 6-12 months). Preliminary results have indicated that the most significant changes occur primarily in pathological postural tonic reflexes.

[Treatment of children with myelodysplasia, complicated by vesicoureteral reflux].

Timely detection of various neurogenic urinary bladder dysfunctions in children with congenital lesions of caudal regions of the spine and their treatment in due time enable the urinary dynamics of the lower urinary tract to be stabilized early. The efficient application of conservative treatments contributes to the recovery of detrusor performance and urethral and anal sphincters in some spinal patients; however, the maximum effect was achieved in patients who had undergone intercostal autoneuroplasty. Microneurosurgical interventions on the lumbosacral roots of the spine are most likely to produce a pelvic reinnervation effect to some extent and promotes the regression of vesicoureteral reflux.

[Reconstructive microsurgery in the combined treatment of children with spinal cord disorders].

The use of microsurgical techniques in operations for autoneuroplasty with intercostal nerves in patients with congenital abnormality of the spinal cord makes it possible to adequately approximate of the interrupted roots of the spinal cord and creates promising prerequisites for restoration of pelvic and motor functions. Observations have shown that the functions of the pelvic organs in children are gradually restored and active movements appear in the lower extremities. The use of the omentum on a nutrient pedicle made it possible to arrest hydrocephalic phenomena.