We present the design of a spherical imaging system with the following properties: (i) A 4π field of view that enables it to “see” in all directions; (ii) a single center of projection to avoid parallax within the field of view; and (iii) a uniform spatial and angular resolution in order to achieve a uniform sampling of the field of view. Our design consists of a spherical (ball) lens encased w...

Since but little work has been done on the innervation of the esophagus, it seemed to me that it might be both interesting and profitable to determine, by means of the inlru-&am methylene blue method, the arrangement and terminations of the nerves in this part of the digestive tract, to verify the results already gained by other methods and, so far as practicable, to compare the innervation of ...

Hyperplane arrangements are very interesting combinatorial objects and many results can be found in the literature. For instance, several papers [1, 2, 6, 7] are concerned with the characteristic polynomials and the number of regions of a hyperplane arrangement. In his paper [9], Stanley reviewed various hyperplane arrangements raising interesting questions, one of which is related to the follo...

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Compact and automated sensing systems are needed to monitor plant health for NASA’s controlled-environment space crop production. A new hyperspectral system was designed early detection of stresses using both reflectance fluorescence imaging in visible near-infrared (VNIR) wavelength range (400–1000 nm). The prototype mainly includes two LED line lights providing VNIR broadband UV-A (365 nm) li...

UNLABELLED Extravasation of therapeutic (90)Y-ibritumomab tiuxetan can cause significant injury. Detection of extravasated (90)Y using a γ-camera for patients undergoing (90)Y-ibritumomab tiuxetan therapy is a challenge because of the inherently low efficiency of bremsstrahlung imaging and the interference of prompt and scattered photons from (111)In that are still present in the body at the ti...