Abstract: The present disclosure provides an extracorporeal focused ultrasound treatment device for a pelvic disease. The treatment device includes an ultrasonic transducer and a treatment couch. Sound emitting surface of the ultrasonic transducer is a spherical surface having a first notch, a second notch and a third notch, the first notch and the second notch are respectively positioned at two intersections of the spherical surface and a diameter perpendicular to the main great circle, and the third notch connects the first notch with the second notch; a cross-section of the sound emitting surface parallel to the main great circle is in a shape of an arc; and an ultrasonic wave generated by the sound generation unit is focused at a center of the sphere corresponding to the sound emitting surface. The treatment couch is configured for a human body to lie in a lithotomy position.

Abstract: The TaNAC2 gene can promote uptake and utilization of nitrogen in a plant. A method for improving the uptake, transport and/or assimilation of nitrogen element in the plant includes: introducing a gene encoding a protein represented by SEQ ID NO:4 into a primary plant to obtain a transgenic plant. Compared to the primary plant, the uptake, transport and/or assimilation of the nitrogen element in the transgenic plant are improved. The method provides advantages in that: the TaNAC2 gene, as a nitrate nitrogen responsive regulatory factor, which can regulate the expression of a series of genes in nitrogen element uptake pathways of wheat, greatly promotes the study of the metabolism and utilization of the nitrogen element in a plant; and it is possible to improve the assimilation efficiency of nitrogen element by increasing the expression of TaNAC2, thereby reducing fertilizer application and increasing yield.