Analogic Corp. (NASDAQ: ALOG), National Semiconductor Corp. (NYSE: NSM), and Toro Co. (NYSE: TTC) were among this week's big earnings losers as they struggle to adapt to dismal economic conditions.

Analogic said its fiscal first-quarter profit fell 95% from a year ago to $320,000, or 2 cents per share, due to higher manufacturing costs and expenses related to its acquisition last summer of Copley Controls Corp., a manufacturer of MRI machine parts. Analysts polled by Thomson Reuters had, on average, expected earnings of 52 cents per share for the quarter ended Oct. 31.

Shares fell to a new 52-week low Friday, and closed at $29.65, down 28.5%, on Friday. The share price has fallen 54.2% in the past year.

National Semiconductor reported fiscal second-quarter earnings of $33.9 million, or 14 cents per share, which is 63% below year-ago results. A significant drop in orders from wireless handset makers depressed earnings. Excluding restructuring expenses and other items, earnings fell short of estimates of analysts surveyed by Thomson Reuters.

Shares rose $1.36, or 13.2%, Friday to close at $11.65. The share price has fallen 52.5% in the past year.

Outdoor equipment maker Toro said its fiscal fourth-quarter profit fell nearly 100% to $13,000, or less than 1 cent per share, for the quarter ended Oct. 31. Toro took a charge of $4.7 million, or 8 cents a share, to finance early retirements used to trim the company's workforce. Analysts had expected earnings to be 6 cents per share.

Shares rose $1.12, or 3.7%, Friday to close at $31.28. The share price has fallen 46.6% in the past year.

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