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Linear regression is an analytic approach commonly used in public health to examine the relationship between continuous dependent (e.g., blood pressure) and independent (e.g., body mass index (BMI)) variables. For any regression procedure it is desirable to use models that closely fit the data. Transformations of the response variable can improve the fit and may correct violations of model assu...

There exists a surprising theoretical prediction for a small system: its microcanonical heat capacity can become negative. An increase of energy can-under certain conditions-lead to a lower temperature. Here we present experimental evidence that a cluster containing exactly 147 sodium atoms does indeed have a negative microcanonical heat capacity near its solid to liquid transition.

A total of 147 cases of Zika virus infection in the United States and Puerto Rico have been reported to the US Centers for Disease Control and Prevention as at 26 February. Of these, 107 occurred in 24 US states and 40 on the island of Puerto Rico. In a teleconference briefing with reporters, the CDC’s director, Tom Frieden, said that all of the 107 cases reported within the US had been travel ...

1 of 2 DESCRIPTION A 34-year-old lady who defaulted highly active antiretroviral therapy (HAART), returned after 2 years with bilateral rapidly progressive blurring of vision of 6 months duration. Five months back she was diagnosed to have cerebral toxoplasmosis and was started on double strength trimethoprim/ sulphamethoxazole and HAART and she was continuing on the same regimen. Her CD4+T cel...

parenteral hyperalimentation, all of the patient’s daily nutritional requirements are supplied by infusing nutrients directly into the systemic circulation. TPN is widely employed in a variety of pathophysiological settings for the nutritional support of patients with conditions requiring complete bowel rest (e.g., some stages of Crohn’s disease, ulcerative colitis, and severe pancreatitis) or ...