rare type

Fasting during the month of Ramadan raises the risk of a rare type of stroke, according to new research. Over one billion Muslims fast worldwide during the month of Ramadan.

Other studies have shown that fasting during Ramadan does not affect the rate of arterial stroke. This study looked at cerebral venous sinus thrombosis, a rare type of stroke that most often affects young adults and children and is more common in women.

XMM-Newton has been surprised by a rare type of galaxy, from which it has detected a higher number of X-rays than thought possible.

The observation gives new insight into the powerful processes shaping galaxies during their formation and evolution.

Scientists working with XMM-Newton were looking into the furthest reaches of the universe, at celestial objects called quasars.

These are vast cosmic engines that pump energy into their surroundings. It is thought an enormous black hole drives each quasar.

XMM-Newton has been surprised by a rare type of galaxy, from which it has detected a higher number of X-rays than thought possible.

The observation gives new insight into the powerful processes shaping galaxies during their formation and evolution.

Astronomers have spied a faraway star system that is so unusual, it was one of a kind -- until its discovery helped them pinpoint a second one that was much closer to home.

Astronomers believe that these star systems are the progenitors of a rare type of supernova.

Scientists have discovered a new rare type of hemoglobin. Hemoglobin transports oxygen in the red blood corpuscles.

When bound to oxygen it changes color. The new hemoglobin type appears optically to be transporting little oxygen.

Measurements of the blood oxygen level therefore present a similar picture to patients suffering from an inherited cardiac defect.

Instruments falsely report anoxia in affected people.

Recurrent low-grade serous carcinoma, a rare type of ovarian cancer, is less sensitive to chemotherapy and therefore more difficult to treat than more common high-grade ovarian cancers, according to researchers.