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When a patient complains about chest pain, diagnosis will usually involve catheter angiography to evaluate the adequacy of blood supply to the heart. Researchers have now established that, in certain cases, the diagnostic reliability of non-invasive coronary computed tomography (CT) angiography is as good as that of coronary angiography - thereby dispensing with the need for invasive procedures.

When a patient complains about chest pain, diagnosis will usually involve catheter angiography to evaluate the adequacy of blood supply to the heart. Researchers have now established that, in certain cases, the diagnostic reliability of non-invasive coronary computed tomography (CT) angiography is as good as that of coronary angiography - thereby dispensing with the need for invasive procedures.

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Astronomers have a new tool in their search for extraterrestrial life -- a sophisticated bot that helps identify stars hosting planets similar to Jupiter and Saturn.

Astronomers have a new tool in their search for extraterrestrial life -- a sophisticated bot that helps identify stars hosting planets similar to Jupiter and Saturn.

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People with chronic diseases like arthritis, diabetes and heart disease may one day forego the daily regimen of pills and, instead, receive a scheduled dosage of medication through a grape-sized implant that is remotely controlled.

People with chronic diseases like arthritis, diabetes and heart disease may one day forego the daily regimen of pills and, instead, receive a scheduled dosage of medication through a grape-sized implant that is remotely controlled.

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Eleven-month-old infants can learn to associate the language they hear with ethnicity, recent research suggests. Eleven-month-old infants looked more at the faces of people of Asian descent versus those of Caucasian descent when hearing Cantonese versus English -- but not when hearing Spanish.

Eleven-month-old infants can learn to associate the language they hear with ethnicity, recent research suggests. Eleven-month-old infants looked more at the faces of people of Asian descent versus those of Caucasian descent when hearing Cantonese versus English -- but not when hearing Spanish.

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Researchers studying the behavior and neuroscience of octopuses have long suspected that the animals' arms may have minds of their own. A new model is the first attempt at a comprehensive representation of information flow between the octopus's suckers, arms and brain, based on previous research in octopus neuroscience and behavior, and new video observations conducted in the lab.

Researchers studying the behavior and neuroscience of octopuses have long suspected that the animals' arms may have minds of their own. A new model is the first attempt at a comprehensive representation of information flow between the octopus's suckers, arms and brain, based on previous research in octopus neuroscience and behavior, and new video observations conducted in the lab.

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The function of protein machines in biological cells is so complex that even supercomputers cannot predict their cycles at atomic detail. But many aspects of their operation at mesoscales can be already revealed by exploring simple mechanical models, amenable for simulations on common computers. The authors now show how artificial protein-like structures with machine properties can be designed.

The function of protein machines in biological cells is so complex that even supercomputers cannot predict their cycles at atomic detail. But many aspects of their operation at mesoscales can be already revealed by exploring simple mechanical models, amenable for simulations on common computers. The authors now show how artificial protein-like structures with machine properties can be designed.

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Scientists have succeeded in creating room-temperature ice and controlling its growth behaviors by dynamically compressing water up to pressures above 10,000 atmospheres.

Scientists have succeeded in creating room-temperature ice and controlling its growth behaviors by dynamically compressing water up to pressures above 10,000 atmospheres.

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Researchers recently set out to gain a better understanding of the thermal balance of power plants and surfaces, but quickly realized that they would need to determine what roles cloud cover and relative humidity play in the transparency of the atmosphere to radiatio. The group presents detailed radiative cooling resource maps they created to help determine the best climates for large-scale deployment of passive cooling technologies.

Researchers recently set out to gain a better understanding of the thermal balance of power plants and surfaces, but quickly realized that they would need to determine what roles cloud cover and relative humidity play in the transparency of the atmosphere to radiatio. The group presents detailed radiative cooling resource maps they created to help determine the best climates for large-scale deployment of passive cooling technologies.

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A new family of enzymes has been engineered to perform one of the most important steps in the conversion of plant waste into sustainable and high-value products such as nylon, plastics and chemicals.

A new family of enzymes has been engineered to perform one of the most important steps in the conversion of plant waste into sustainable and high-value products such as nylon, plastics and chemicals.

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Monarch butterflies purchased from a commercial breeder did not fly in a southward direction, even in offspring raised outdoors, in a new study.

Monarch butterflies purchased from a commercial breeder did not fly in a southward direction, even in offspring raised outdoors, in a new study.

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