The Astigmometer is a simple accessory which is attached to a surgical microscope. It allows precise suturing of the cataract wound and reduced the amount of postoperative astigmatism at six weeks. This allowed rapid visual rehabilitation and more active patients. It obviated the removal of sutures in the postoperative period in most patients (90%). However, stable results after one year were o...

Mục tiêu: Nhận xét hình dạng cung răng hai hàm và xác định một số kích thước trên mẫu thạch cao ở nhóm sinh viên từ 18-24 tuổi. Đối tượng phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang bằng thăm khám lâm sàng, đo đạc của 305 đối đại học (136 nam, 169 nữ) tuổi 18-24. Kết quả: Tỷ lệ Oval chiếm đa với 96,7%; vuông: 2%; tam giác: 1,3%; trên: R33: 33,5±4,3 mm; R66: 51,8±4,1 D13: 8,7±3,2 D16: 30,...

It is shown that a projective plane of odd order, with a collineation group acting primitively on the points of an invariant oval, must be desarguesian. Moreover, the group is actually doubly transitive, with only one exception. The main tool in the proof is that a collineation group leaving invariant an oval in a projective plane of odd order has 2-rank at most three.

The occurrence of oval window atresia is a rare anomaly with conductive hearing loss. Traditional atresia surgeries involve challenging surgical techniques with risks of irreversible inner ear damage. Recent reports on Bonebridge (Medel, Innsbruck, Austria), a novel implantable bone conduction hearing aid system, assert that the device is safe and effective for conductive hearing loss. We prese...

This paper presents a construction of low-density parity-check (LDPC) codes based on the incidence matrices of oval designs. The new LDPC codes have regular parity-check matrices and Tanner graphs free of 4-cycles. Like the finite geometry codes, the codes from oval designs have parity-check matrices with a large proportion of linearly dependent rows and can achieve significantly better minimum...

The query language OVAL which is intended for the integration with the database programming language based on C++ is proposed in this paper. The work addresses the impedance mismatch problem 1] between the syntax and the semantics of the programming and query language. The query language OVAL is based on the functional query language FQL 3] extending it for the manipulation of complex objects. ...

The effects of a conductive or mixed (conductive and sensorineural) hearing loss on anatomical and physiological properties of the chicken auditory system were examined. Animals used in the anatomical studies underwent either a columella (ossicle) removal, which produced a moderate conductive hearing loss, or an oval window puncture, which produced a severe mixed hearing loss, at 4 days posthat...

We propose the use of finite Fourier series as an alternative means of representing ovals in projective planes of even order. As an example to illustrate the method’s potential, we show that the set {w +w +w : 0 ≤ j ≤ 2} ⊂ GF(2) forms an oval if w is a primitive (2 +1) root of unity in GF(2) and GF(2) is viewed as an affine plane over GF(2). For the verification, we only need some elementary “t...

Alfven-branch waves provide an efficient means for transporting energy into the auroral oval. Here, we report observations of these obtained by Fengyun-3E (FY-3E)/ACMag instruments, which are designed to detect three-dimensional AC magnetic fields in 0.05–25 Hz band. The suggest that broadband a permanent feature oval, although their amplitude and locations vary with global state magnetosphere....