We demonstrate a self-starting Kerr-lens mode-locked (KLM) Yb:YAG thin-disk oscillator operating in the regime of positive intracavity group-delay dispersion (GDD). It delivers 1.7 ps pulses at an average power of 17 W and a repetition rate of 40 MHz. Dispersive mirrors compress the pulses to a duration of 190 fs (assuming sech2 shape; Fourier limit: 150 fs) at an average power level of 11 W. T...

IMPORTANCE Relatively little data exist about the long-term outcomes of an initial glaucoma drainage device (GDD) and subsequent GDDs implanted in pediatric patients with glaucoma. OBJECTIVE To determine the long-term outcomes of the first and second GDDs and risk factors in pediatric glaucoma. DESIGN, SETTING, AND PARTICIPANTS Retrospective review of 119 eyes of 89 patients younger than 18...

needs of human life from the beginning been an important factor we have been threatened by population growth, food security and human well- men of science and technology with a new plan maintain and improve their food security to make it work. in this investigation, meteorological data have been received from synoptic stations based on daily, monthly, and annually trend from iran meteorological...

yield prediction before harvesting is one of the tools in order to planning food production supply in future.yield prediction was carried out for wheat(triticum aestivum) using different meteorological variables with agrometeorological indices in hamedan district during 2003-04 and 2004-05. according to correlation coefficients, standard error of estimate as well as relative deviation of predic...

Objective: To determine the thermal sum requirements in degrees days of development (GDD) varieties Avena sativa, Cuauhtémoc and Chihuahua by phenological stage its effect on accumulation total forage morphological component Güémez, Tamaulipas.
 Design/methodology/approach: The sowing was carried out plots 6×6 m four repetitions through mechanized preparation land, with doses 120 kg ha-1 s...

Purpose This reports a case using fibrin glue to secure a glaucoma drainage device plate to the sclera where there is a concern with the use of suture. Observations A 13-year-old patient with congenital aniridia and associated glaucoma refractory to topical medications underwent implantation of a glaucoma drainage device (GDD) for improved intraocular pressure (IOP) control. The patient had s...