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Thursday, April 26, 2012
iFixit tears open an HP Z1, finds it impossibly easy to repair
Those guys and gals at iFixit love nothing more than destroying something beautiful and, in the process, finding out exactly what makes it tick. The latest victim of their reckless deconstructive tendencies is HP's Z1. The all-in-one turns out to be just as beautiful on the inside as it is outside. The components aren't haphazardly tossed inside the tight enclosure or soldered in place. The impressively repairable and replaceable parts all slide out easily, with at most the turn of a few screws. Only the LCD and glass pane posed an obstacle, but even that turned out to be relatively simple to remove. For more photos of the tiny workstation torn asunder, check out the source link.
iFixit tears open an HP Z1, finds it impossibly easy to repair originally appeared on Engadget on Thu, 26 Apr 2012 18:05:00 EDT. Please see our terms for use of feeds.
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No Longer Just An App, Social Video Service ShowYou Leaps From Mobile To Web
Social video browsing app ShowYou has often been referred to as something like a "Flipboard for video content," but now, that comparison may no longer be as apt. The company today is bringing its signature video grids, which contain all the videos you've liked or shared, to a?notable?new platform: the web. No longer confined to mobile phones and tablets, ShowYou isn't just an "app" like Flipboard anymore, it's a service. Alongside ShowYou's arrival on the web, the startup has also beefed up its search engine using social signal data to return more accurate and timely results.pacquiao marquez pacquiao marquez penn state game radiohead tour cbsnews ufc on fox fight card florida marlins
Wednesday, April 25, 2012
Teresa Giudice to Real Housewives of New Jersey Castmates: Sorry!!!
You know what they say about apologies: they aren't sincere unless you make six figures off publishing them in a supermarket tabloid.
Teresa Giudice has taken this saying to heart and penned an open letter to her Real Housewives of New Jersey castmates. It's included in the latest issue of In Touch Weekly and, in addressing Jacqueline, Melissa, Kathy and Caroline, it reads:
"I wish I could take it all back and start over."
On last Sunday's season four premiere - which drew record ratings for Bravo - Giudice dissed and also dismissed Gorga, her sister-in-law, saying she'd leave husband Joe in a heartbeat for a richer man.
Melissa lashed out in response, saying she was hurt by Teresa's comments and they simply aren't valid.
Meanwhile, Giudice is also engaged in a few with Jacqueline, to whom she writes:
"Dear Jacqueline, I wish we could have resolved things sooner because I’m sincerely sorry for upsetting you - and I’m sorry I didn’t respond to your apology on Twitter. I feel like things have gotten out of hand, which is sad. I miss our friendship. I miss being like Lucy and Ethel with you. And so I hope we can work through these problems one day, when you are ready. Teresa xoxo"
Should the ladies accept Teresa's apology? They just need to pick up the In Touch and decide whether or not they buy it. That's how friendship typically works, right?
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Ashton Kutcher & Mila Kunis Enjoy a Seaside Getaway
If Mila Kunis and Ashton Kutcher want to nip those pesky relationship rumors fin the bud, they might want to stop taking romantic weekend vacations around California.
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Diversity aided mammals? survival over deep time
ScienceDaily (Apr. 23, 2012) ? When it comes to adapting to climate change, diversity is the mammal's best defense. That is one of the conclusions of the first study of how mammals in North America adapted to climate change in "deep time" -- a period of 56 million years beginning with the Eocene and ending 12,000 years ago with the terminal Pleistocene extinction when mammoths, saber-toothed tigers, giant sloths and most of the other "megafauna" on the continent disappeared.
"Before we can predict how mammals will respond to climate change in the future, we need to understand how they responded to climate change in the past," said Larisa R. G. DeSantis, the assistant professor of earth and environmental studies at Vanderbilt who directed the study. "It is particularly important to establish a baseline that shows how they adapted before humans came on the scene to complicate the picture."
Establishing such a baseline is particularly important for mammals because their ability to adapt to environmental changes makes it difficult to predict how they will respond. For example, mammals have demonstrated the ability to dramatically alter their size and completely change their diet when their environment is altered. In addition, mammals have the mobility to move as the environment shifts. And their ability to internally regulate their temperature gives them more flexibility than cold-blooded organisms like reptiles.
The study, which was published on Apr. 23 in the journal Public Library of Science One, tracked the waxing and waning of the range and diversity of families of mammals that inhabited the continental United States during this extended period. In taxonomy, species are groups of individuals with common characteristics that (usually) can mate; genera are groups of species that are related or structurally similar and families are collections of genera with common attributes.
Scientists consider the fossil record of mammals in the U.S. for the study period to be reasonably complete. However, it is frequently impossible to distinguish between closely related species based on their fossil remains and it can even be difficult to tell members of different genera apart. Therefore the researchers performed the analysis at the family level. They analyzed 35 different families, such as Bovidae (bison, sheep, antelopes); Cricetidae (rats, mice, hamsters, voles); Equidae (horses, donkeys); Ursidae (bears); Mammutidae (mammoths); and Leporidae (rabbits and hares).
The study found that the relative range and distribution of mammalian families remained strikingly consistent throughout major climate changes over the past 56 million years. This period began with an extremely hot climate, with a global temperature about six degrees hotter than today (too hot for ice to survive even at the poles) and gradually cooled down to levels only slightly higher than today. It was followed by a dramatic temperature drop and a similarly abrupt warming and finished off with the Ice Ages that alternated between relatively cold glacial and warm interglacial periods.
"These data clearly show that most families were extremely resilient to climate and environmental change over deep time," DeSantis said.
Horses were consistently the most widely distributed family from the Eocene to the Pliocene (and remained highly dominant, just not number one, in the Pleistocene). In contrast, families with more restricted ranges maintained lower range areas. Thus, their work demonstrates that mammals maintained similar niches through deep time and is consistent with the idea that family members may inherit their ranges from ancestral species. The idea that niches are conserved over time is a fundamental assumption of models that predict current responses of mammals to climate change.
The analysis also found a link between a family's diversity and its range: Family's with the greater diversity were more stable and had larger ranges than less diverse families.
"Diversity is good. The more species a family has that fill different niches, the greater its ability to maintain larger ranges regardless of climate change," said DeSantis.
While most families during certain periods of time yielded either gains in species/genera (e.g., Oligocene to Miocene) or losses (Miocene to Pliocene), these changes were remarkably consistent through time with overall gains or losses in one genera typically yielding a gain or loss in of about two species.
Although the extent of family ranges remained relatively constant, the study found that these ranges moved south and east from the Eocene to the Pleistocene. That is most likely a response to the general climate cooling that took place during the period. However, southeastern movement of ranges from the Pliocene to the Pleistocene may also be complicated by the influx of South American animals when the Isthmus of Panama was formed. This triggered a tremendous exchange of species that has been labeled "The Great American Interchange." As a result, some of the southern movement of families' ranges may have been due to the influx of South American mammals, like the sloth and armadillo, moving north, the researchers cautioned.
The study also looked for evidence that families containing megafauna or other species that went extinct during the terminal Pleistocene extinction (also known as the Quaternary or Ice Age extinction) might have been in decline beforehand, but failed to find any evidence for any such "extinction prone" families. If climate change was the culprit, DeSantis and her team expect to see differences between families containing megafauna and those composed of smaller animals. However, the fact that they didn't find such evidence cannot completely rule out this possibility.
The role that diversity plays in mammalian adaptation is particularly important because mammal species have been going extinct in record numbers for the past 400 years. In a 2008 report, the International Union for the Conservation of Nature predicted that one in four species of land mammals in the world faces extinction. As a result, the diversity of mammalian families is declining at a time when they need it the most to cope with a rapidly changing climate.
Co-authors on the paper were graduate students Rachel A. Beavins Tracy, Cassandra S. Koontz, John C. Roseberry and Matthew C. Velasco. The project was supported by funds from Vanderbilt University.
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Story Source:
The above story is reprinted from materials provided by Vanderbilt University, via Newswise. The original article was written by David Salisbury.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Larisa R. G. DeSantis, Rachel A. Beavins Tracy, Cassandra S. Koontz, John C. Roseberry, Matthew C. Velasco. Mammalian Niche Conservation through Deep Time. PLoS ONE, 2012; 7 (4): e35624 DOI: 10.1371/journal.pone.0035624
Note: If no author is given, the source is cited instead.
Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.
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Can Heavy Metal in Foods, Cosmetics Spur Breast Cancer Spread?
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