We present the XMM-Newton discovery of X-ray emission from the planetary nebula (PN) A78, the second born-again PN detected in X-rays apart from A30. These two PNe share …
Introduction: Prescription drug spending is a significant component of Medicaid's total expenditures. Numerous policies have aimed at controlling Medicaid prescription drug spending; …
Background Optical diagnosis can be used as an alternative to pathology for the evaluation of colorectal polyps. There exist multiple classification systems that can be used to assist in …
Amminger P A12, A28 Amos T A17–A18 An SK A125, A129 Ananthram N A73 Anderson J A23 Andrews L A124 Ansari M A98 Anto J A127 Antonioli M A84 Antonysamy AS A117 …
Background: Hinkley, California, is a poor desert community known for a $333 million legal settlement and for the “Erin Brockovich” film that alleged a cancer excess from groundwater …
Optical singularities are localized regions in a light field where one or more of the field parameters, such as phase or polarization, become singular with associated zero intensity. …
Bernheim, J A54, A55, A57, A78, A135, A207, A243, A250 Bernich, P A150 Berta, K A37 Bertelli, A A5 Bertelli, AAE A5 Berthezène, F A98 Berthezene, P A32 Berthoux, F A15, A29, A98, …
The calculation of the internal field in dipole lattices necessitates summing the contributions due to all dipoles in the crystal. These dipole sums are conditionally convergent, which …
Let {ai, j} be real numbers for 0⩽ i⩽ r− 1 and 1⩽ j⩽ 2, and define a sequence {vn} with initial conditions v0, v1 and conditional linear recurrence relation vn= at, 1vn− 1+ at, 2vn− 2 where …