Reaction of Kojic acid with potassium in dioxane

Call number: LD2668 .T4 1937 F7

Honey, Dat I Love So Well : A Dainty Darkey Ditty

https://digitalcommons.library.umaine.edu/mmb-vp/4215/thumbnail.jp

Autonomous Apple Fruitlet Sizing with Next Best View Planning

In this paper, we present a next-best-view planning approach to autonomously size apple fruitlets. State-of-the-art viewpoint planners in agriculture are designed to size large and more sparsely populated fruit. They rely on lower resolution maps and sizing methods that do not generalize to smaller fruit sizes. To overcome these limitations, our method combines viewpoint sampling around semantically labeled regions of interest, along with an attention-guided information gain mechanism to more strategically select viewpoints that target the small fruits' volume. Additionally, we integrate a dual-map representation of the environment that is able to both speed up expensive ray casting operations and maintain the high occupancy resolution required to informatively plan around the fruit. When sizing, a robust estimation and graph clustering approach is introduced to associate fruit detections across images. Through simulated experiments, we demonstrate that our viewpoint planner improves sizing accuracy compared to state of the art and ablations. We also provide quantitative results on data collected by a real robotic system in the field

Oh You Big Blue Moon

https://digitalcommons.library.umaine.edu/mmb-vp/4462/thumbnail.jp

Only One Daisy Left : Waltz Song And Refrain

https://digitalcommons.library.umaine.edu/mmb-vp/5552/thumbnail.jp

The Membrane Components of Crustacean Neuromuscular Systems.: II. Analysis of interactions among the electrogenic components

The present work provides additional evidence for the occurrence of a number of electrogenic components in crustacean and particularly crayfish muscle fibers. It demonstrates that these different components are independent. One or another can be eliminated or modified by various procedures without affecting the rest. However, interactions can occur between the different components. The coupling may be effected by the changes in membrane potential which result from changes in ionic permeabilities or by changes in the membrane conductance. Some interactions of such couplings which can perturb electrophysiological measurements are described and analyzed

The Membrane Components of Crustacean Neuromuscular Systems: I. Immunity of different electrogenic components to tetrodotoxin and saxitoxin

Axon spikes in crayfish and lobster neuromuscular preparations were blocked by tetrodotoxin or saxitoxin (concentration 10−9 to 10−8 g/ml). Responses evoked in the excitatory synaptic membrane by ionophoretically applied glutamate, or in the inhibitory by GABA were unaffected by concentrations of the poisons up to 10−5 g/ml. These confirm other findings that the poisons do not affect electrically inexcitable membrane components. “Miniature” p.s.p.’s, which indicate local secretory activity in the presynaptic terminals were unaffected by the poisons. Electrical stimuli applied to the axon terminals elicited localized p.s.p.’s after spike electrogenesis of the axons was blocked. Thus, persistence of secretory activity may be linked to persistence of depolarizing K activation in the axons. Spikes induced in the muscle fibers by procaine were not affected by the poisons. In correlation with other data this finding indicates that the depolarizing electrogenic element, which does not depend upon Na activation in the normally gradedly responsive muscles, differs chemically from the Na activation component which is present in the conductile membrane of various cells. Three other varieties of electrically excitable response which are present in crayfish muscle fibers (hyperpolarizing Cl activation, depolarizing K inactivation, and K activation) were, likewise, immune to the toxin