The natural history of total pulmonary venous connection (TAPVC) is unfavorable per se. We describe a modified technique of intra-atrial repair in infants with supra- and infracardiac TAPVC. Twenty patients were treated. The median age at repair was 16 (range 3-62) days. Echocardiography and multi-detector row computed tomography were used to confirm the diagnosis. Our policy was to perform sur...

planting pattern can be adjusted by changing row spacing and row width, one row and two- row planting and plant interval on rows. in order to obtain the optimum planting pattern of a monogerm hybrid cultivar and its effect on the quantitative and qualitative characteristics of this cultivar, an experiment was conducted in two years (2001-2002) in zarghan area of farsprovince. the measured chara...

Although different modifications of ridge tillage (RT) systems exist in regions around the world, positive impacts RT on crop yields and weed management are quite similar. This review gives a comprehensive summary forms highlights benefits for growth, mainly due to better access soil moisture, nutrients light. In temperate areas, can accelerate emergence because temperature is usually higher ri...

Abstract The Pilsung cipher is part of the North Korean Red Star operating system, which was leaked to West in 2014. Initial analysis by Kryptos Logic reported a possibility class weak keys due use pseudo-random diffusion. Following this lead, we analyzed and identified small such keys. We developed techniques for searching key that belongs class. After spending thousands CPU hours, found suppo...

We present a row-by-row (RBR) method for solving semidefinite programming (SDP) problem based on solving a sequence of problems obtained by restricting the n-dimensional positive semidefinite constraint on the matrix X. By fixing any (n − 1)-dimensional principal submatrix of X and using its (generalized) Schur complement, the positive semidefinite constraint is reduced to a simple second-order...

Weed control is one of the most important technological operations to ensure crop yield and quality in ecological sugar beet production. However, conventional mechanical weed labor- time-intensive has adverse effects on soil environment. The aim this study was experimentally investigate influence robotic systems properties assess effectiveness these different methods This examines two systems: ...

The seed potato cost is very important component in total production and account for 30 to 70% which varies depending on the country or region. Tuber size an factor decide requirement per unit area. Seed affects yield, graded marketable tuber yields. Standard of 25–125 g weight (30–55 mm) known as tubers India. Obtaining achieving higher potential cultivars. profile can be reduced expanded by a...

Let A and B be n × m matrices. The matrix B is said to be g-row majorized (respectively g-column majorized) by A, if every row (respectively column) of B, is g-majorized by the corresponding row (respectively column) of A. In this paper all kinds of g-majorization are studied on Mn,m, and the possible structure of their linear preservers will be found. Also all linear operators T : Mn,m ---> Mn...