Posts treating: "Means"
Friday, 04 September 2015
At the beginning of my Invertebrate Paleontology course I give each student a fossil to identify by whatever means necessary. I challenge them to take it down to the species level, and tell me its age and likely place of collection. The fossil this year is shown above: the rugose coral Stereolasma rectum (Hall, 1843)
Hallucigenia’s head and the pharyngeal armature of early ecdysozoans. 2015. Nature
Illo by Danielle Dufualt
Abstract: The molecularly defined clade Ecdysozoa comprises the panarthropods (Euarthropoda, Onychophora and Tardigrada) and the cycloneuralian worms (Nematoda, Nematomorpha, Priapulida, Loricifera and Kinorhyncha). These disparate phyla are united by their means of moulting, but
In an upcoming EduMine course on Risk Assessment, Decision Making, and the Management of Mine Geowaste, we write the following on the topic of Net Present Value (NPV): Comparative Decision Analysis/Economic Safety Margin (CDA/ESM) provides an opportunity to apply Risk Based Decision Making to the alternative selection process and to explore how alternatives may differ in
This submission from Peter Dolan (familiar to Geoscientist readers as a kerbstone detective) has inspired us to establish Photo of the Month. All submissions gratefully received by email (sarah.day@geolsoc.org.uk), twitter, facebook or any other means at your disposal, and we’ll … Continue reading
Recently, there was a pretty massive discussion about the practice of live-tweeting at conference talk hosted on this blog. While the discussion is by no means over, or particularly conclusive, one idea to emerge was having an icon of some sort on slides during talks to indicate whether or not they could be live-tweeted. Sarah Werning has been kind enough to create and share some logos following this, and I strongly encourage academics to use these when presenting to avoid any future confusion [...]
My Greatest Adventure #68
From Today In Science History:
In 1859, The Origin of Species by Means of Natural Selection was published in England to great acclaim. In this groundbreaking book by British naturalist Charles Darwin, he argued that species are the result of a gradual biological evolution in which nature encourages, through natural selection, the propagation of those species
On the first day of the Invertebrate Paleontology course at Wooster, I give all the students a fossil to identify as best they can. Everyone gets the same kind of specimen, and they can use any means to put as specific a name on it as possible. Most students struggle with the exercise, of course
Reading my tweets can be somehow interesting: It seems like ESRI invented and exclusively owns the phrase “story map”: #storymap Tweets What IS a story map? To me a story map is the same like a map: a way of information distribution. According to ESRI: “Story maps use geography as a means of organizing and presenting information. They tell the story of a place, event, issue, trend, or pattern in a geographic context. They combine interactive maps with other rich [...]
I saw this fault in Texas, north of the laccolith known as Cristo Rey: Click to enlarge I had a hard time making sense of the offset in my head, though, since the layers were of inconsistent thickness. Several people tried to convince me that the offset was “normal” (that is, right side down), but it still didn’t “click” for me in the field. So I took a photo. Back
GeoLog-The official blog of the European Geosciences Union [2014-04-29 07:30:25]
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Welcome back to the second day of the 2014 General Assembly! Today is packed full of excellent sessions, and this list of highlights is by no means comprehensive! Make sure you complement this information with EGU Today, the General Assembly newsletter, to get the most out of the conference – grab a copy on your
What an awful title, eh. Well, you can avoid making this mistake! A recent Guardian post by Conversation UK’s Akshat Rathi (he’s popular on the blog today!) discusses some of the common mistakes in popular science writing and how best to avoid them. It’s fairly general, and by no means exhaustive, and mainly for more
GeoLog-The official blog of the European Geosciences Union [2014-03-25 13:00:56]
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(61 visits) AT,US,CN
How to get to Vienna and what to do when you’re there – a brief, and by no means comprehensive, introduction! Getting here Vienna’s International Airport is served by many of the major European airlines. If you would like to consider overland transport or benefit from our 20% discount on Star Alliance flights, take a look at
There is only one Geological Society, the one in London that was founded in 1807. Its highest award is the Wollaston Medal, which goes to "geologists who have had a significant influence by means of a substantial body of excellent research in either or both 'pure' and 'applied' aspects of the science." Willliam Hyde Wollaston (1766–1828) is also honored in the name of the pyroxene mineral wollastonite; he was also the discoverer of the precious metal palladium, the same metal that [...]
GeoLog-The official blog of the European Geosciences Union [2014-02-05 13:00:23]
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Forests in the tropics account for about half the above-ground carbon on Earth and as the trees grow older they are capable of storing more and more. In fact, their carbon-storing potential is so large that they are increasingly being viewed as a means of mitigating climate change. Take, for example, the United Nations effort to
As I was cleaning up some material that I'd found at the Penn Dixie site in Blasdell, NY, I noticed the below specimen. It appears to be a pair of Eridophyllum subcaespitosum corals that are showing the budding habit common to this species as a means of asexually reproducing (also called gemmation). The upper portions of the corals are missing but you can see the connection between the individual corallites.Interesting to note is that the left most corallite budded twice at the same level [...]
I won't mention exactly how long it's been since I posted a Where in the West (or the one and only Where in the North), because I don't have the means to look it up right now (I'm writing this without an internet connection). Suffice it to say that it's been quite a while.
The photos below are of snowy, mountainous country with fjords and -- for additional location-enhancing info -- with
Single-cell analysis of the methanogenic archaeon Methanosarcina soligelidi from Siberian permafrost by means of confocal Raman microspectrocopy for astrobiological research
Authors:
Serrano et al
Abstract:
Methanogenic archaea from Siberian permafrost are suitable model organisms that meet many of the preconditions for survival on the martian subsurface. These microorganisms have proven
“The Bureau of Economic Geology frequently fields calls from the general public to find information about clay deposits, uranium site locations, sand and gravel deposits, or what resources, in general, are located at or around a specific location. The interactive Map provides the public with the means to search out locations on their own, and
GeoLog-The official blog of the European Geosciences Union [2013-09-25 13:00:27]
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After being awarded the EGU’s science journalism fellowship, Jane Qiu took to the Himalayas to shadow scientists studying air pollution at the Pyramid Observatory some 5000 metres above sea level. The journey to work is by no means an easy one… For Angela Marinoni and Paolo Bonasoni, climate scientists at the Institute of Atmospheric Sciences
The “Viewpoints” project explores the aesthetic question whether there is a parameter-based method for generating unconventional maps of the world that do justice to the thematic context in which they appear. For this purpose a project-specific software is developed. So far, map production by means of projection has been governed by certain rules that determine