The soybean cyst nematode (SCN) Heterodera glycines is the most devastating pest of soybean in the U.S.A. The resistance response elicited by SCN in soybean is complex, and genes involved in the response to a large extent are unknown and not well characterized. We constructed cDNA libraries made from mRNA extracted from roots of the resistant soybean Glycine max L. Merr. 'Peking' at 12 h, 2 to ...

Many animals signal their resource holding potential (RHP) to deter competitors from engaging them in potentially costly fights. Studies of this opponent assessment function have generated important insights into signal design and evolution. In the case of sounds, rate of production is often a salient feature. We used digital video playback to conduct analogous experiments exploring the importa...

By Neeraj Keskar, Student Member, IEEE, and Gabriel A. Rincón-Mora, Senior Member, IEEE,Georgia Tech Analog and Power IC Design Lab With an ever-rising demand for portable and compact electronics, circuit integration has become the key trend in the electronics industry. From the power management standpoint, the frequency compensation circuit is a critical roadblock, since its design is based on...

Hp-FAR-1 is a major, secreted antigen of the parasitic nematode Heligmosomoides polygyrus, a laboratory mouse model frequently used to study the cellular mechanisms of chronic helminth infections. The DNA encoding Hp-FAR-1 was recovered by screening a fourth larval (L₄) H. polygyrus cDNA expression library using antibodies raised against L₄ stage excretory/secretory (E/S) proteins. Predictions ...

The outcome of contests over resources such as territories, food, and mates is determined by resource holding power (RHP) and resource value (Parker 1974; Huntingford & Turner 1987). In addition, previous fighting experience strongly influences the odds of winning. Winner and loser effects denote the higher probability of a winner to win a subsequent encounter and the higher probability of a lo...

DC microgrids have shown to be a good approach for better accommodating stochastic renewable energy sources (RES) and the charging of electric vehicles (EVs) at distribution level. For this, fast-acting storage units (ESSs) are essential. This requires that both bi-directional power converter topology control scheme present right set features. The ESS discussed in this paper consists new DC-DC ...

World’s calories supply from maize accounts for 20% but global postharvest grain loss caused by insect pests was estimated to be 10%. Control is mostly synthetic insecticides with consequences such as resurgence and resistance negative effect on non- target organisms. Maize losses weevils are so enormous that effective local solution has sought. Thus this research aimed at assessing the effecti...

In this note, the combined sensitivity and gain margin problem for SlSO linear systems is formulated and solved using a complex function interpolation technique. i t is proved that this problem always has a real rational solution provided it is solvable in the complex irrational sense. The sensitivity minimization problem subject to a gain margin constraint and its dual problem are also conside...

The tasks of the controller in a PWM power converter are to stabilize the system and to guarantee an almost constant output voltage in spite of the perturbations in the input voltage and in the output load. We propose to design the controller using Hoo control theory, via the solution of two algebraic Riccati equations. The almost optimal HOO controller is of the same order as the converter and...