Coherent Beam-Beam Instability in Collisions with a Large Crossing Angle.

In recent years the "crab-waist collision" scheme [P. Raimondi, Proceedings of 2nd SuperB Workshop, Frascati, 2006.; M.

Angular Momentum of Twisted Radiation from an Electron in Spiral Motion.

We theoretically demonstrate for the first time that a single free electron in circular or spiral motion emits twisted photons carrying well-defined orbital angular momentum along the axis of the electron circulation, in adding to spin angular momentum. We show that, when the electron velocity is relativistic, the radiation field contains harmonic components and the photons of lth harmonic carry lℏ total angular momentum for each. This work indicates that twisted photons are naturally emitted by free electrons and are more ubiquitous in laboratories and in nature than ever thought.

Change of Self-recognition about the Accuracy of Data on Okinawa in the Mizushima Prefectural Life Table: Influence of His "Pre-publication of the 1921-25 Prefectural Life Table".

We examined the change in the self-recognition about the accuracy of data on Okinawa in the Mizushima Prefectural Life Table, and discussed:its relationship to the "Okinawa Is a Traditional Longevity Prefecture" theory. In the Prefectural Life Table made before WWII, Mizushima had suspended his judgment as to the reliability of infant mortality data in Okinawa. However, after the production of the "Proto-'1921-25' Life Table" in 1952-1954, Mizushima asserted that infant mortality data in Okinawa was incomplete and unreliable, and excluded Okinawa in his analysis in two times of the life table.

Activation of the metabolic sensor AMP-activated protein kinase inhibits aquaporin-2 function in kidney principal cells.

Aquaporin-2 (AQP2) is essential to maintain body water homeostasis. AQP2 traffics from intracellular vesicles to the apical membrane of kidney collecting duct principal cells in response to vasopressin [arginine vasopressin (AVP)], a hormone released with low intravascular volume, which causes decreased kidney perfusion. Decreased kidney perfusion activates AMP-activated kinase (AMPK), a metabolic sensor that inhibits the activity of several transport proteins.

Specifying the Date when Mizushima Haruo Calculated His "Pre-publication of the 1921-25 Prefectural Life Table," Based on Circumstances of Publication and Changes of Methods.

We examined the first appearing papers of a series of the Mizushima Prefectural Life Table and checked its publication history and the transition of manufacturing methods as a first step in order to examine the theory that life expectancy in Okinawa has been long from a long time ago. However, the Prefectural Life Table of 1921-25 was first published in 1960, and its original form (as the "Pre-publication of the 1921-25 Prefectural Life Table") was estimated to have been started after WWII and completed in 1952-1954, based on the publication history and the transition of the manufacturing methods. In our next publication we will examine the change in the self-recognition about the accuracy of data from Okinawa in the Mizushima Prefectural Life Table, and discuss its relationship to the "Okinawa Is a Traditional Longevity Prefecture" theory.