Modern cities generate huge amounts of rubbish, and disposing of this is one of the most pressing environmental problems. One can bury it of course, or burn it in incinerators, or just dump it in a big pile just outside the city. This is the approach chosen for the Jardim Gramacho in Rio, Brazil, one of the worlds largest rubbish dumps, which is the subject of the Oscar nominated film, Waste Land.*Seventy percent of Rio's rubbish arrives at Jardim Gramacho, which is an astonishing 7,0........ Read more »
Porto MF, Juncá DC, Gonçalves Rde S, & Filhote MI. (2004) [Garbage, work, and health: a case study of garbage pickers at the metropolitan landfill in Rio de Janeiro, Brazil]. Cadernos de saude publica / Ministerio da Saude, Fundacao Oswaldo Cruz, Escola Nacional de Saude Publica, 20(6), 1503-14. PMID: 15608851
Whales, culture and three-somes... Read more »
Mate, B., Duley, P., Lagerquist, B., Wenzel, F., Stimpert, A., & Clapham, P. (2005) Observations of a Female North Atlantic Right Whale (Eubalaena glacialis) in Simultaneous Copulation with Two Males: Supporting Evidence for Sperm Competition. Aquatic Mammals, 31(2), 157-160. DOI: 10.1578/AM.31.2.2005.157
By now many have heard about the recent study published in Pediatrics which, of course, shows a clear link between extensive video game playing and depression in teenagers. You may have also heard about another recent publication of a study conducted by 8-10 year olds.
"How are these studies related?" You may ask.
"They are not." I may respond. Actually I will respond. These studies have nothing to do with each other. However, they are related from the perspective that they are BIG news!
In t........ Read more »
Gentile DA, Choo H, Liau A, Sim T, Li D, Fung D, & Khoo A. (2011) Pathological Video Game Use Among Youths: A Two-Year Longitudinal Study. Pediatrics. PMID: 21242221
The featherless chicken is as implied by its name a chicken breed with no feathers whatsoever. Its creators claim it to be ecofriendly and better suited for hot environments.
... Read more »
Azoulay Y, Druyan S, Yadgary L, Hadad Y, & Cahaner A. (2011) The viability and performance under hot conditions of featherless broilers versus fully feathered broilers. Poultry science, 90(1), 19-29. PMID: 21177439
Cahaner A, Ajuh JA, Siegmund-Schultze M, Azoulay Y, Druyan S, & Zárate AV. (2008) Effects of the genetically reduced feather coverage in naked neck and featherless broilers on their performance under hot conditions. Poultry science, 87(12), 2517-27. PMID: 19038808
On occasion, a scientific idea comes along that is so simple and elegant that one wonders that it hadn’t been done before! Such is the case with the results of an article published online in Nature Photonics in December, which … Continue reading →... Read more »
Today’s special guest blogger is Jess Vickruck, a PhD candidate at Brock University. Jess studies twig nesting bee diversity and the impacts of nest choice on their biology. When I first started my master’s project, my intention was to look at how nest choice affected fitness in twig nesting carpenter bees (genus Ceratina, family Apidae). [...]... Read more »
J.L. Vickruck, J.T. Huber, & M.H. Richards. (2010) Natural enemies of the bee genus Ceratina (Hymenoptera: Apidae) in the Niagara Region, Ontario, Canada. Journal of the Entomological Society of Ontario, 11-26. info:/
An economist typically bases their economic models on an assumption that the economy is composed of agents who gain utility from consumption. From the beginning of the model, they take consumption to be the objective and all decisions by the agents aim to maximise their level of consumption within the budget constraint that they face. While I recently posted on how most economists’ fixation on [...]... Read more »
Diagram showing principal systems of association fibers in the human brain. The superior longitudinal fasciculus (SLF) is labeled at the center top (marked by purple arrows).New Scientist covered two journal articles by Rametti and colleagues (2010, 2011), a group of Spanish researchers and clinicians affiliated with Unidad Trastorno Identidad de Género [Gender Identity Disorder Unit]. Using the diffusion tensor imaging (DTI) method, they initially wanted to identify any sex differences in the ........ Read more »
Rametti, G., Carrillo, B., Gómez-Gil, E., Junque, C., Segovia, S., Gomez, �., & Guillamon, A. (2011) White matter microstructure in female to male transsexuals before cross-sex hormonal treatment. A diffusion tensor imaging study. Journal of Psychiatric Research, 45(2), 199-204. DOI: 10.1016/j.jpsychires.2010.05.006
Rametti, G., Carrillo, B., Gómez-Gil, E., Junque, C., Zubiarre-Elorza, L., Segovia, S., Gomez, �., & Guillamon, A. (2010) The microstructure of white matter in male to female transsexuals before cross-sex hormonal treatment. A DTI study. Journal of Psychiatric Research. DOI: 10.1016/j.jpsychires.2010.11.007
Nature has a disturbing article from their Asian correspondent David Cyranoski: Thought experiment. It's open access.In brief: a number of top Japanese psychiatrists have started offering a neuroimaging method called NIRS to their patients as a diagnostic tool. They claim that NIRS shows the neural signatures of different mental illnesses.The technology was approved by the Japanese authorities in April 2009, and since then it's been used on at least 300 patients, who pay $160 for the privilege. ........ Read more »
by Persuasion Strategies in Persuasive Litigator
By: Dr. Shelley Spiecker Six months after the public was riveted to press coverage of the oil spill in the Gulf, impact on energy defendants has been less doomsday than feared. In fact, this is one of the better times in the past 10 years to be an energy defendant in front of a jury. Why? Much as the spill itself appeared to dissipate more rapidly than expected, the tide of public opinion has drifted away from concern over the environmental practices of energy companies, and toward concern over ........ Read more »
Bolsen, T., & Cook, F. (2008) The Polls--Trends: Public Opinion on Energy Policy: 1974-2006. Public Opinion Quarterly, 72(2), 364-388. DOI: 10.1093/poq/nfn019
by Peter Janiszewski, Ph.D. in Obesity Panacea
I absolutely love it when I wonder about something I encounter in my daily life, and then I find the answer to this quandary provided by peer-reviewed research.
Oh, how I love science.
But, I digress.
For a few years now countless food manufacturers have been “sub-packaging” their foods into smaller portions in an apparent effort to curb folks from overindulging. You can usually find 100 kcal multi-packs of chips, pretzels, chocolates, and all sorts of junk foods. Despite the very obvious ne........ Read more »
Wansink, B., Payne, C., & Shimizu, M. (2011) The 100-Calorie Semi-Solution: Sub-Packaging Most Reduces Intake Among The Heaviest. Obesity. DOI: 10.1038/oby.2010.306
The wave of protests sweeping across the Middle East and North Africa has been described as revolutionary. Whether this is an accurate description of what is taking place remains to be seen, and depends upon how you define a revolution....... Read more »
Farooq Khan. (2011) Will the uprising in the Middle East . Nature Blogs. info:/
As photons move through the universe they get gravitationally lensed as the pass by large clumps of matter. (As shown in the image above.) Dark matter, being the dominant form of matter, lenses these photons more than anything. Therefore, by studying the lensing properties of incoming photons, in principle we can reconstruct what the profiles of the dark matter doing that lensing.
Now, put (
... Read more »
Michael L. Brown, & Richard A. Battye. (2011) Mapping the dark matter with polarized radio surveys. E-Print. arXiv: 1101.5157v1
So, you may have heard about Tihomir Petrov, the math professor at Cal State, Northridge who was arrested for urinating on his colleague's office door. Campus security got video footage of Petrov in the act when they set up video cameras following the discovery of "puddles of what they thought was urine."
You may be asking yourself, what the heck was this dude thinking? How should we interpret the behavior of this Homo mathematicus (not that there's anything wrong with it) specimen?
Fortunate........ Read more »
Jordan, N., Mwanguhya, F., Kyabulima, S., RÃ¼edi, P., & Cant, M. (2010) Scent marking within and between groups of wild banded mongooses. Journal of Zoology, 280(1), 72-83. DOI: 10.1111/j.1469-7998.2009.00646.x
Brief introduction to the new research identifying how red blood cells run their circadian rhythm without transcription & translation.... Read more »
Growing up, I never gave so much of a guenon's dung for primates. But after one class and some research, I think about the effects of bonding with primates and what effects that has on the environment.... Read more »
Rose AL. (2010) Bonding, biophilia, biosynergy, and the future of primates in the wild. American journal of primatology. PMID: 20954251
Massively parallel sequencing will be applied to hundreds or thousands of tumor genomes this year. Catalogues of somatic alterations in human cancers (e.g. COSMIC) will grow, perhaps as exponentially as dbSNP did in the past decade. Perhaps more importantly, we will begin to see cases where whole-genome or whole-exome sequencing of a patient’s tumor guides [...]... Read more »
I have never discussed too much in-depth the history of the matter of Yang-Mills propagators in Landau gauge even if I often expressed a clearcut position. This is a kind of disclaimer when I say that I would not like to offend the work of anyone but my results agree excellently well with lattice computations [...]... Read more »
von Smekal, L., Hauck, A., & Alkofer, R. (1997) Infrared Behavior of Gluon and Ghost Propagators in Landau Gauge QCD. Physical Review Letters, 79(19), 3591-3594. DOI: 10.1103/PhysRevLett.79.3591
Aguilar, A., & Natale, A. (2004) A dynamical gluon mass solution in a coupled system of the Schwinger-Dyson equations. Journal of High Energy Physics, 2004(08), 57-57. DOI: 10.1088/1126-6708/2004/08/057
Ph. Boucaud, J. P. Leroy, A. Le Yaouanc, A. Y. Lokhov, J. Micheli, O. Pene, J. Rodriguez-Quintero, & C. Roiesnel. (2005) The Infrared Behaviour of the Pure Yang-Mills Green Functions. arxiv. arXiv: hep-ph/0507104v4
Aguilar, A., Binosi, D., & Papavassiliou, J. (2008) Gluon and ghost propagators in the Landau gauge: Deriving lattice results from Schwinger-Dyson equations. Physical Review D, 78(2). DOI: 10.1103/PhysRevD.78.025010
Cornwall, J. (1982) Dynamical mass generation in continuum quantum chromodynamics. Physical Review D, 26(6), 1453-1478. DOI: 10.1103/PhysRevD.26.1453
Attilio Cucchieri, & Tereza Mendes. (2007) What's up with IR gluon and ghost propagators in Landau gauge? A puzzling answer from huge lattices. PoSLAT2007:297,2007. arXiv: 0710.0412v1
I. L. Bogolubsky, E. -M. Ilgenfritz, M. Müller-Preussker, & A. Sternbeck. (2007) The Landau gauge gluon and ghost propagators in 4D SU(3) gluodynamics in large lattice volumes. PoSLAT2007:290,2007. arXiv: 0710.1968v2
O. Oliveira, P. J. Silva, E. -M. Ilgenfritz, & A. Sternbeck. (2007) The gluon propagator from large asymmetric lattices. PoSLAT2007:323,2007. arXiv: 0710.1424v1
by Robert Deyes in Promega Connections
Oceanographer Robert Ballard’s literary showpiece The Discovery Of The Titanic today sits on a shelf in my bedroom collecting dust. Gone are the days when it was heavily leafed through by relatives and close friends mesmerized as they were by the glossy pictures and personal accounts of disaster contained within its covers. I had dismissed [...]... Read more »
Sánchez-Porro C, Kaur B, Mann H, & Ventosa A. (2010) Halomonas titanicae sp. nov., a halophilic bacterium isolated from the RMS Titanic. International journal of systematic and evolutionary microbiology, 60(Pt 12), 2768-74. PMID: 20061494
Twenty-five years ago this very morning (at age 6) I was sitting on a tile floor in the hallway of Martin Elementary School in Seekonk, Massachusetts watching history unfold in real-time. This school assembly followed a series of classroom lessons about space - our solar system, the moon, and exploration.
As the world turns, it often takes tragedy to so well ingrain lessons to be learned, and this case was no exception. As I sat there with three classrooms worth of schoolmates, I watc........ Read more »
Steven J. Dick and Keith Cowing. (2008) Proceedings from the NASA Administrator's Symposium Risk and Exploration: Earth, Sea and the Stars. NASA SP-2005-4701. DOI: NASA SP-2005-4701
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