I discuss recent progress in developing and exploiting connections between SAT algorithms and circuit lower bounds. The centrepiece of the article is Williams’ proof that NEXP * ACC0, which proceeds via a new algorithm for ACC0-SAT beating brute-force search. His result exploits a formal connection from non-trivial SAT algorithms to circuit lower bounds. I also discuss various connections in th...

An iterative algorithm similar to our MMSE estimation procedure proposed in another paper by the authors is applied to parameter estimation of multiple superimposed chirp signals in white Gaussian noise. The necessary parameter initializations of the procedure are accomplished by peak detections in the Choi–Williams time–frequency distribution of the data followed by application of the least-sq...

Slit.?With reference to a note on page 287 of the September Gazette, to the effect that Miss Anna Williams won His Excellency's silver medal. &c., the facts are these. Anna Williams, a Native Christian pupil, won a medal offered for competition by a lady in the Central Proviuces. His Excellency the Viceroy has not given a prize for competition by the Nagpur class, which is confined strictly to ...

Hội chứng Williams (Williams Syndrome -WS) là bệnh di truyền hiếm gặp, do mất đoạn nhỏ trên cánh dài nhiễm sắc thể (NST) số 7 (7q11.23). Tỉ lệ mắc 1/7.500 - 10.000 trẻ đẻ sống. WS đặc trưng bởi khuôn mặt bất thường, dị tật tim và tính cách quá hòa đồng.
 Mục tiêu: Phát hiện 7q11.23 bằng kỹ thuật lai huỳnh quang tại chỗ (Flurorescen in situ Hybridizaton FISH).
 Phương pháp: Mười bảy nh...