{"id":3167,"date":"2008-11-18T11:40:19","date_gmt":"2008-11-18T11:40:19","guid":{"rendered":"http:\/\/scienceblogs.com\/principles\/2008\/11\/18\/baby-quantization-update\/"},"modified":"2008-11-18T11:40:19","modified_gmt":"2008-11-18T11:40:19","slug":"baby-quantization-update","status":"publish","type":"post","link":"http:\/\/chadorzel.com\/principles\/2008\/11\/18\/baby-quantization-update\/","title":{"rendered":"Baby Quantization Update"},"content":{"rendered":"

In this post we present an update to our earlier measurement<\/a> of the Baby Feeding Correlation Function:<\/p>\n

\"i-037a9a79317a88494bc86e183330812a-sm_correlation_nov.jpg\"<\/p>\n

The figure above shows a histogram of the interval between feedings for SteelyKid in the 14 weeks since birth. Error bars represent 1-σ statistical uncertainties.<\/p>\n

As you can see, we have added a great deal of data since we last posted. The correlation function clearly shows a large peak between 3 and 4 hours, dropping off rapidly to zero for longer feeding times. The zero value for feedings within half an hour clearly demonstrates anti-bunching, indicating that baby feedings are quantized events.<\/p>\n

We continue to await the development of ab initio<\/i> theoretical calculations of the distribution with sufficient precision to compare to our data.<\/p>\n

<\/p>\n

(The smattering of points above 7 hours is probably an artifact, either due to data entry errors, or some quirk of the script I used to sort out the data in SigmaPlot. I don’t really care enough to try to figure it out. We’ll just call it “background noise,” and leave it at that.)<\/p>\n

(Having figured out how to do the necessary steps in SigmaPlot, the next silly baby data project will be to re-bin the colorful feeding graphs in 23 and 25-hour “days” to see if that causes a clearer pattern to emerge. I’ve spent enough time puttering around with this for today, though.)<\/p>\n","protected":false},"excerpt":{"rendered":"

In this post we present an update to our earlier measurement of the Baby Feeding Correlation Function: The figure above shows a histogram of the interval between feedings for SteelyKid in the 14 weeks since birth. Error bars represent 1-σ statistical uncertainties. As you can see, we have added a great deal of data since… Continue reading Baby Quantization Update<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"1","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3167","post","type-post","status-publish","format-standard","hentry","category-steelykid","entry"],"_links":{"self":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/3167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/comments?post=3167"}],"version-history":[{"count":0,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/3167\/revisions"}],"wp:attachment":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/media?parent=3167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/categories?post=3167"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/tags?post=3167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}