purpose : to report a patient with retained broken probe tip in the false passage site after nasolacrimal duct (nld) probing case report : a 18-month-baby with epiphora and a nontender mass in the site of lacrimal sac was visited in clinic. she had a history of probing six months ago by another ophthalmologist. the probing was repeated successfully but the mass size didn’t change. the mass was ...

Advances in atomic resolution in situ environmental transmission electron microscopy for direct probing of gas-solid reactions, including at very high temperatures (approximately 2000 degrees C) are described. In addition, recent developments of dynamic real time in situ studies at the Angstrom level using a hot stage in an aberration corrected environment are presented. In situ data from Pt/Pd...

This paper discusses ‘the shape of space’, in terms of search algorithms and traversal operators. It is pointed out that it is the combination of traversal operators and representation that gives rise to a fitness landscape. This provides an intuitive background to recent discussions on the formal limitations on search algorithms. Dynamic and random remapping of space via base changes—applying ...

In this paper we consider some basic scheduling questions motivated by query processing that involve accessing resources (such as sensors) to gather data. Clients issue requests for data from resources and the data may be dynamic or changing which imposes temporal constraints on the delivery of the data. A proxy server has to compute a probing schedule for the resources since it can probe a lim...

We describe a Vervaat-like path transformation for the reeected Brownian bridge conditioned on its local time at 0: up to random shifts, this process equals the two processes constructed from a Brownian bridge and a Brownian excursion by adding a drift and then taking the excursions over the current minimum. As a consequence, these three processes have the same occupation measure, which is easi...

We explore the prospects for using future supernova observations to probe the dark energy. We focus on quintessence, an evolving scalar field that has been suggested as a candidate for the dark energy. After simulating the observations that would be expected from the proposed SuperNova / Acceleration Probe satellite (SNAP), we investigate two methods for extracting information about quintessenc...