Profile

Scrapbook photo 1
gwern branwen
2,700 followers|1,589,557 views
AboutPostsPhotosVideos

Stream

gwern branwen

Shared publicly  - 
 
Bleg for Las Vegas suggestions: I'm going to be there around March 30th for a few days. Is there anything especially worth doing that I wouldn't find in the usual tourist suggestions like seeing tigers, shooting machine guns, etc?
1
Eric Jain's profile photogwern branwen's profile photo
2 comments
 
Reviews are fairly positive, and looks nice and close to the main strip, too. I'll add it to the list.
Add a comment...

gwern branwen

Shared publicly  - 
 
"Elephants and Mammoths: Can Ice Ivory Save Blood Ivory?", Farah & Boyce 2015:

"We study both theoretically and empirically how the presence of a substitute alters the exploitation path of an open access resource. Elephants, poached for ivory, are the endangered species, and mammoth ivory is a non-renewable substitute. Our theory shows that the presence of the mammoth ivory substitute reduces both the elephant poaching rate and the minimum viable elephant population. Thus, there exist elephant population levels which are non-viable absent a substitute, but become viable with a substitute. Our empirical analysis finds that absent the eighty tonnes of Russian mammoth ivory exports per annum 2010-2012, the current poaching level of 34,000 elephants per year may have increased to as many as 85,000 elephants per year, out of a population of a half-million animals, and reduced elephant ivory prices by $100 per kilogram. Thus mammoth ivory trade may be saving elephants from extinction."
2
Add a comment...

gwern branwen

Shared publicly  - 
A hundred years ago, Albert Einstein predicted the existence of moving ripples in space and time. Credit Illustration by Aleks Sennwald
4
1
Dejan Jovanović's profile photo
Add a comment...

gwern branwen

Shared publicly  - 
 
2015 link compilation.
2
Add a comment...

gwern branwen

Shared publicly  - 
 
"In addition, we observed significant associations between morningness and body mass index (BMI) and depression in our cohort but found no evidence to support a causal relationship in a Mendelian randomization (MR) analysis."
Abstract•; Introduction•; Results•; Discussion•; Methods•; Additional information•; References•; Acknowledgements•; Author information•; Supplementary information. Circadian rhythms are a nearly universal feature of living organisms and affect almost every biological process.
3
Add a comment...
Have him in circles
2,700 people
Don Uon's profile photo
Γιώργος Κατσαρής's profile photo
Eugene Portnoy's profile photo
Anthony Marquez (BMA)'s profile photo
joshua tsatsu's profile photo
Liu Kamala's profile photo
Grosir Tas Murah's profile photo
Matt Parsons's profile photo
Arek Flinik's profile photo

gwern branwen

Shared publicly  - 
 
"Effects of Initiating Moderate Alcohol Intake on Cardiometabolic Risk in Adults With Type 2 Diabetes: A 2-Year Randomized, Controlled Trial", Gepner et al 2015.

Brings a little more clarity to the long-disputed alcohol debate. Still not clear if red wine is worth it from the longevity viewpoint, but it's randomized experiments which will establish that, not yet another 'we found wine drinkers lived longer in a survey' paper.
1
Add a comment...

gwern branwen

Shared publicly  - 
 
"Patents and innovation in economic history", Moser 2016:

"A strong tradition in economic history, which primarily relies on qualitative evidence and statistical correlations, has emphasized the importance of patents as a primary driver of innovation. Recent improvements in empirical methodology - through the creation of new data sets and advances in identification - have produced research that challenges this traditional view. The findings of this literature provide a more nuanced view of the effects of intellectual property, and suggest that when patent rights have been too broad or strong, they have actually discouraged innovation. This paper summarizes the major results from this research and presents open questions."

Moser reviews their past work in economic history: the World Fair exhibitions lack of patents, effects of plant patents on roses, seizures of German patents, the sewing machine patent pool, technological advances in countries without patents at all, etc. Unsurprisingly, the effects of patents are usually negative.
3
Add a comment...

gwern branwen

Shared publicly  - 
 
Another entry in the amusing vein of animal intelligence studies: first rats and chimpanzees, now dogs. Thompson notes it's an underestimate due to the usual restriction of range issue (http://drjamesthompson.blogspot.com/2016/02/dognitive-ability-in-university-level.html), in this case, due not to a selected sample of university students or something, but selection for sheepherding ability!
Screen reader users, click here to load entire articleThis page uses JavaScript to progressively load the article content as a user scrolls. Screen reader users, click the load entire article button to bypass dynamically loaded article content. Please note that Internet Explorer version 8.x will ...
1
Add a comment...

gwern branwen

Shared publicly  - 
7
2
Neike Taika-Tessaro's profile photoSteven Rose's profile photo
Add a comment...

gwern branwen

Shared publicly  - 
 
The Brain Preservation Foundation's Small Mammalian Brain Prize has been won with fantastic preservation of a whole rabbit brain using a new fixative+slow-vitrification process.

Evaluation: http://www.brainpreservation.org/asc_rabbit_fulleval/

Publication describing the process: "Aldehyde-stabilized cryopreservation" McIntyre & Fahy 2015 http://www.sciencedirect.com/science/article/pii/S001122401500245X (note this is a fulltext link)

#cryonics #neuroscience  
7
2
Boyd Smith's profile photoSergio Abriola's profile photo
Add a comment...

gwern branwen

Shared publicly  - 
 
'Testing is sufficient to show the presence of bugs, but not the absence.'
An Archive of Our Own, a project of the Organization for Transformative Works
8
Add a comment...
People
Have him in circles
2,700 people
Don Uon's profile photo
Γιώργος Κατσαρής's profile photo
Eugene Portnoy's profile photo
Anthony Marquez (BMA)'s profile photo
joshua tsatsu's profile photo
Liu Kamala's profile photo
Grosir Tas Murah's profile photo
Matt Parsons's profile photo
Arek Flinik's profile photo
Basic Information
Gender
Male