Wednesday, 31 December 2014

Ring in the New Year Watching Comet Lovejoy Skirt Across the Night Sky



Ring in the New Year Watching Comet Lovejoy Skirt Across the Night Sky



Ring in the New Year with something different this year: watch Comet Lovejoy (aka C/2014 Q2) skirt across the open sky as it becomes a visible target for those with binoculars and small telescopes.


As Lovejoy rockets through the sky some 44 million miles away, which is about half the distance from the Earth to the Sun, some stargazers outside of the influence of the city's bright lights will be able to see the comet with their naked eye. The comet is currently sitting at a level 5 magnitude, but some experts believe it will reach 4.6 around January 7th, 2015 when it will be closest to Earth, making it one of the brightest comets since Comet Holmes' approach in October 2007.


Spectators will be able to locate the comet under Lepus, and by the month's end will approach the foot of Andromeda. Novices may be able to more easily locate the comet by looking for it near Orion's belt. As it traverses the constellations in the night sky, those with binoculars should be able to easily pick out the streaming comet. For comparison, experts say its light is just slightly brighter than that of Eta Ursae Minoris, the dimmest of the four stars in the Little Dipper’s bowl.


Mitzi Adams, a NASA astronomer, said to Yahoo News that patient stargazers will be able to see the comet's progress across the night's sky.



"Comets are fun to watch because they move a large distance in the sky from one day to the next. If an observer looks for a comet on two consecutive days at the exact same time, a comet will have moved quite a bit in the sky. Indeed, one can observe cometary motion, if patient, on the same night."



Lovejoy has an 11,500 year orbit, which means this is a once and a lifetime event. Don't miss out.


Read more at Yahoo News


Photo Credit: Rocky Raybell/Flickr




Americans Tend to Neglect Their New Year's Resolutions



Americans Tend to Neglect Their New Year's Resolutions



It's the eve of the new year, and people are no doubt getting ready for an evening of celebration to ring-in 2015. But what happens on the morning after the festivities when that New Year's resolution is supposed to begin? How many of us keep to our plans of self-improvement? Not many.


Research from the University of Scranton's psychology department showed that 71 percent of American's held true to their promises for the first two weeks. But six months later, less than 50 percent were still keeping up with their resolutions. Max Ufberg from the Pacific Standard dug into the University of Scranton's achieves, going back to a 1989 study that took 213 participants between the ages of 16 to 75 and tracked their efforts for change in the New Year. The study followed participants for two years, as they tried to keep up their resolutions.


By the end of the study, researchers found only 19 percent held with their resolution. Those who were successful eased into their new lifestyle rather than going cold turkey, and used counter-conditioning to maintain positive associations with their goals. On the flip side, those who failed to keep their resolutions fell into a state of self-blame, wishing their resolution to go away.


Of those who were successful, researchers note that 53 percent of them had at least one slip up. The group had an average of 14 slip-ups over the course of two years. It's normal to have a few moments of weakness, so long as getting back on track remains a priority.


Few of us will succeed in our goals past the first two weeks and fewer still will maintain them for years to come. But don't let the statistics discourage you from a time-honored tradition--you may be part of the 19 percent.


Read more at Pacific Standard


Photo Credit: Shutterstock




Tuesday, 30 December 2014

What Events Kept Countries Awake or Snoozing in 2014?



What Events Kept Countries Awake or Snoozing in 2014?



How did you sleep this year? What keeps you up at night? Jawbone released a year-end fact sheet showing what kinds of events and occasions kept populations around the world awake at night.


Olga Khazan from The Atlantic wrote on the study that collected data from over one million users wearing the Jawbone UP fitness tracker. The major culprits of sleep-deprivation were religious activities, holidays, time changes, and sporting events.


The 2014 World Cup kept many people up across the globe. Jawbone shows that the U.K. had its worst night of sleep during the England-Italy match on July 14th. Likewise, the Germans, Italians, and French stayed up over an hour later to watch their county's respective games on various days. Whereas Canadians got less sleep on the night the nation squared off against Sweden in the Olympic hockey final and won. Also, Canada relaxed laws concerning alcohol, so bars could open as early as 5am to accommodate enthusiasts to cheer on their countrymen.


For the United Arab Emirates, during the month of Ramadan people stayed up nearly two hours later.


Americans' latest nights, latest mornings, and longest sleep times were largely during three-day weekends and extended time-off from work. On the other part of the globe, Russians had a late night and an early morning on World War II Victory Day and New Year's Eve. On the latter, bedtimes were the latest of any day for the county (around 3:30am). The only countries that came close to competing with their New Year's Eve partying were Ukraine and Argentina. Whereas, the Americans were the ones to leave the festivities earliest, hitting the hay shortly after the ball dropped.


It's important to understand that this data only comes from people who own Jawbones, which limits certain socioeconomic factors. However, it's interesting to see what cultural events tend to keep the world at large from getting shut-eye.


Read more at The Atlantic


Photo Credit: Thom Davies/Flickr




Some Scientists Believe Loneliness is Becoming an Epidemic



Some Scientists Believe Loneliness is Becoming an Epidemic



More and more adults report feeling lonely. It's not just the elderly, but younger adults 18 to 24 that are reporting these feelings of isolation. John Cacioppo and Stephanie Cacioppo from New Scientist write that loneliness is becoming a modern epidemic, even when we're more connected than ever, these thoughts of being alone together are breaking us down.


Humans are social creatures--we thrive in groups and decline when we're alone for too long, often becoming depressed. But the Cacioppos explain that loneliness doesn't just mean being physically alone, it can also mean feeling like you're on the social perimeter of a group.


In nature, fish on the edge of the school are more likely to be attacked by predators, so their sense of self-preservation heightens. When placed in isolated situations, social animals switch their behavior to concentrate on short-term survival. But this alteration in thinking comes at the cost of long-term health if this behavior persists without resolve.


People can become socially withdrawn over time, which can make them hostile toward others. Risk of cognitive decline increases in addition to impulsive behavior. This behavior is leftover from our ancestors in the days when tribes and groups meant success or death. But in our modern society, these old psychological triggers stop some of us from thriving in bigger cities and communities where we're more apt to feel alone in a crowd.


The Cacioppos report that therapies to reduce these feelings have had little effect on people's isolated states. However, one intervention study that focused on having participants talk through their feelings of low self-worth and untrustworthy thoughts toward others held the most promise. Whereas classes involving social training with opportunities to meet people were actually the least effective.



"Given the scale of the problem today, the hunt for better treatments of all types deserves high priority."



Read more at New Scientist


Photo Credit: Geraint Rowland/Flickr




Outfitting Cops with Cameras Forces People to Behave



Outfitting Cops with Cameras Forces People to Behave



The recent deaths of Michael Brown, Eric Garner, and Antonio Martin have sparked a national debate over police responsibility and safety. It's a frustrating problem that people believe can be fixed with body cameras, and a recent study proves that this surveillance solution shows promise.


Max Ufberg from the Pacific Standard writes on the study that was published in the Journal of Quantitative Criminology . Researchers equipped Rialto cops at random with pocket-sized cameras to wear while on-duty for 12 months. The results showed that officers used less force to apprehend a culprit, dropping 59 percent compared to last year. What's more, individuals using force against police officers dropped by 87 percent.


One of the co-authors of the study, Dr. Barak Ariel, explained the reason behind the results, and it all involves the psychology of how we act when we know we're under a microscope:



“With institutionalized body-worn-camera use, an officer is obliged to issue a warning from the start that an encounter is being filmed. [This will impact] the psyche of all involved by conveying a straightforward, pragmatic message: We are all being watched, videotaped, and expected to follow the rules.”



It's an unfortunate solution to an upsetting problem--that we must resort to turning into a surveillance state in order to force people to do the right thing. To control inmate populations English philosopher and social theorist Jeremy Bentham designed a structure called the “panopticon,” in which a watchman could see into every prisoner's cell. However, the observer couldn't watch all cells at a single time, leaving inmates to behave as if they were being observed at all times. It's basic psychology: When we know we're being watched, people tend to fall in-line.


The only thing stopping every police district from carrying these cameras is cost. Ufberg reports that at almost $400 per camera, poorer counties (where they are needed more) may have trouble finding the funds to outfit their forces.


Read more at Pacific Standard


Photo Credit: Pete Birkinshaw/Flickr




Monday, 29 December 2014

Yoga Exercise Improves Heart Health, Aids in Weight Loss



Yoga Exercise Improves Heart Health, Aids in Weight Loss



If you're searching for a New Year's resolution, the internet isn't lacking in ideas. Weight loss is always a popular goal, but what about there's always the method are you going to go about it? A new study may incline some to take up yoga, as researchers suggest it has the same benefits as cycling and brisk walking.


Mandy Oaklander from Time wrote on the study that was published in the European Journal of Preventive Cardiology .The study included 2,768 participants who were reviewed over 37 controlled trials.


The study found that compared to people that didn't exercise, those who practiced yoga saw significant improvements to their cardio-metabolic health, including BMI, blood pressure, heart rate and cholesterol levels. However, researchers could not give a concrete explanation for why these physiological improvements were seen in participants practicing yoga. The researchers had some suggestions for the cause in their paper:



“The similarity in effectiveness on risk factors between the two forms of exercise suggest that there could be comparable working mechanisms, with some possible physiological aerobic benefits occurring with yoga practice, and some stress-reducing, relaxation effect occurring with aerobic exercise.”



As yoga becomes a popular means of maintaining health, researchers write that it's worth more rigorous study, especially after their findings:



“This review demonstrates the potential of yoga to have an impact on concrete, physiological outcomes that represent some of the greatest health burdens today.”



Read more at Time


Photo Credit: Evgeny Atamanenko /Shutterstock




Fingerprints Can Be Cloned From Photos, Used to Hack Accounts



Fingerprints Can Be Cloned From Photos, Used to Hack Accounts



Fingerprints have been hacked. The BBC's Zoe Kleinman reported that Jan Krissler, a member of the Chaos Computer Club (CCC), was able to replicate a politician's fingerprint from several photos taken at a press event.


Weak passwords, pins, and verification methods have often been the cause of some major security breaches, but it seems that putting all your faith in biometrics may be a dangerous alternative. The issue with biometrics comes two-fold: it's already out there for the public to see and it's difficult to revoke in the event of a hack. But when given the option of convenience, people often want to go for the easier option. For instance, two-step authentication (i.e. password plus randomly-generated code) is a great method to secure your accounts—hackers may be able to crack one, but not the other. But, when surveyed back in 2013, 27 percent of people claimed they found it inconvenient. Though, taking the extra time to lock-down your accounts may save from a world of trouble.


Krissler spoke about his research at a convention for the CCC, a network that claims to be "Europe's largest association" of hackers. He commented that "politicians will presumably wear gloves when talking in public" when they hear about his progress. Professor Alan Woodward, a cybersecurity expert from Surrey University, spoke to Kleinman about the issues concerning biometrics:



"Biometrics that rely on static information like face recognition or fingerprints--it's not trivial to forge them but most people have accepted that they are not a great form of security because they can be faked."



He added that there are companies beginning to enhance biometric security to be harder to crack:



"People are starting to look for things where the biometric is alive--vein recognition in fingers, gait [body motion] analysis--they are also biometrics but they are chosen because the person has to be in possession of them and exhibiting them in real life."



For the present time, it may be best to avoid using biometrics to login to you accounts. If you are then make sure to lock them down with a second authentication method.


Read more at BBC


Photo Credit: Shutterstock




Sunday, 28 December 2014

Why Do Ants Have an Inherent Bias to Turn Left?



Why Do Ants Have an Inherent Bias to Turn Left?



Some animals are born with particular behavioral lateralizations, or inherent biases, for instance, 90 percent of humans are right handed. But ants have an exploratory instinct to turn left when navigating a new nest or a lab maze by a significant margin, according to a recent study.


Rachel Nuwer from Smithsonian Mag reported on the recent study that examined how Temnothorax albipennis ants navigated through unknown mazes and tunnels. The researchers found the biased existed so long as they weren't following the wall of a maze. But there's the question of what evolutionary purpose this inherent bias may serve to benefit the ants.


For humans, why the dominance of right-handedness exists is heavily debated among scientists, and there's significant value to how our lives progress depending on that predisposition. One study suggests infants born right-handed are better-able to mimic their mothers (so long as they are right-handed, too). Children not of the same handedness as their mother tend to have developmental problems. Others believe it has something to do with uniform tool-making, or how we were wired for language. Somewhere along the way of our evolution, this setting was weeded out to help us progress and survive.


PhD student Edmund Hunt of Bristol University suggested a few hypotheses in a press release to explain the behavioral disposition in ants:



“The ants may be using their left eye to detect predators and their right to navigate. Also, their world is maze-like and consistently turning one way is a very good strategy to search and exit mazes.


“Furthermore, as their nest-mates are left-leaning too, there should also be safety in numbers. Consistent turning may also help the ants to monitor nest mates during house hunting. So perhaps leaning left is more shrewd than sinister.”



The study's findings deserve further investigation in order to dig into the quirks behind this lateral bias, which may shed light on the origins of why other animals exhibit these same behaviors.


Read more at Smithsonian


Photo Credit: Shutterstock




Friday, 26 December 2014

Gilda Radner: "Dogs Are the Role Model For Being Alive"



Gilda Radner: "Dogs Are the Role Model For Being Alive"



Gilda Radner (1946-1989) was an American Emmy-winning actress and comedienne most famous for being an original cast member of Saturday Night Live. Some of her more famous characters were personal advice expert Roseanne Roseannadanna and "Baba Wawa," a parody of Barbara Walters (who later said she enjoyed the impersonation). Radner died in 1989 after a 4-year battle with ovarian cancer. After her death, Radner's husband Gene Wilder established the Gilda Radner Ovarian Detection Center at Cedars-Sinai Medical Center in Los Angeles.



“I think dogs are the most amazing creatures; they give unconditional love. For me, they are the role model for being alive.”



Dog




Creative People Use Multiple Personality Traits to Help Their Process



Creative People Use Multiple Personality Traits to Help Their Process



Creative folks are a series of extremes—even contradictory at times. They have the capacity to be overly critical of their work and then switch to having a high sense of self. It's hard for psychologists quantify the "creative process," organizing all of these emotions and thoughts into a concrete method, though, many have tried.


Scott Barry Kaufman from the Scientific American writes on a group of psychologists, Guillaume Furst, Paolo Ghisletta, and Todd Lubart, who have presented an “integrative model of creativity that includes personality traits and cognitive processes.” Their hypothesis was presented in a paper published in The Journal of Creative Behavior .


The team believes they've pinpointed three “super-factors” of creative personality types that include Plasticity, Divergence, and Convergence. These types varied in their prominence from person to person, but were heightened at differed stages in the creative process.


Plasticity involves an openness to explore—to seek out new experiences for inspiration. The researchers also put extroversion and high-energy under this category. Divergence describes a predisposition to not conform and to be impulsive. There also many be a tendency to be a bit condescending toward others, but that could be a predisposition toward independent thinking. Convergence traits include heightened ambition, persistence, and attention to detail.


Researchers argue that different personality traits combine and change depending on what stage they are in the creative process, which is divided into two categories: Generation and Selection.


Generation is all about brainstorming original ideas. Creative types benefit from the combination of Plasticity and Divergence traits to help inspire and find new or evolved ideas. The selection process digs deeper into what has been brainstormed, allowing creatives to critique each idea to find one of value. Researchers say that this phase is more heavily associated with Convergence, which gives creatives a way to doubt and persist, rework and fine-tune their product until they're satisfied.


It also sounds rather schizophrenic, being able to jump from loving an idea to hating every piece and reworking it. The process sounds like an exhausting emotional roller coaster of ideas and perseverance, but researchers say each stage and type helps those, who have that creative bent, to succeed. Indeed, creativity is messy.


Read more at Scientific American


Photo Credit: Noelle Buske/Flickr




We Work Harder Under Stress to Get What We Want, But Get No Greater Pleasure



We Work Harder Under Stress to Get What We Want, But Get No Greater Pleasure



You may go to great lengths to get what you want, to the point of stressing yourself out in order to get that reward. It could be argued that alcoholics exhibit this kind of behavior, working under the pressure of their addiction just to get that next drink. But that doesn't mean your efforts will yield greater pleasure when you finally take that sip. A recent study shows that working harder under stress won't make you enjoy your reward any more than someone not under great strain.


Elahe Izadi from the Washington Post wrote on the study, which argues that while our stress may increase our desire to indulge in certain rewards (i.e. alcohol, sweets, gambling), it doesn't increase the pleasure we get from them.


The researchers gathered a group of 36 university students—19 of which were self-professed chocolate lovers. They split the group up, instructing one to put their hands in ice cold water (in order to induce stress) while the other submerged their hands in lukewarm water. The researchers swabbed their mouths before and after the stress conditioning, in order to measure their cortisol levels (a hormone responsible for stress).


Participants were then told to grab a handgrip when given a visual cue, which released a chocolate smell. The group under stress gabbed the handgrip with three times more force than the calmer participants. However, the pleasantness of the odor didn't differ between the groups.


One of the authors, Tobias Brosch of the University of Geneva, said of the study in a press release:



"Stress plays a critical role in many psychological disorders and is one of the most important factors determining relapses in addiction, gambling and binge eating. Stress seems to flip a switch in our functioning: If a stressed person encounters an image or a sound associated with a pleasant object, this may drive them to invest an inordinate amount of effort to obtain it."



Of course, with such a small sample group, more study will be necessary to prove how everyday stressors contribute to affecting humans in this way. However, previous tests with rodents have proven quite promising, showing that the “wanting” and “liking” parts of the brain operate independently of one another.


Read more at The Washington Post


Photo Credit: Shutterstock




Wednesday, 24 December 2014

There's No Such Thing as a 'Healthy Sweetener'



There's No Such Thing as a 'Healthy Sweetener'



After the Christmas food coma subsides, you may start to put some thought into your resolution for the new year. Most people like to make goals to diet and exercise, shifting their consumption from soda to diet colas, because it's “healthier.” But research may have some think twice about cutting back on the sugar and ditching the artificial sweeteners as well.


Time's Markham Heid sat down with Dr. Robert Lustig, a Pediatric Endocrinologist at the University of California, asking, if there was such a thing as a healthy sweetener. Lustig said, no. Honey, sugar, artificial sweeteners—it doesn't matter—they're all bad for you.



“It’s all sucrose, and your body metabolizes it the same way.”



He says people should limit their intake to about six to nine teaspoons. Your liver can process about that much without issue in a day, but when people start to overindulge over long periods of time, issues with insulin response begin to set in. Heart disease, diabetes, and fatty livers become common diagnoses in the doctor's office.


For those that think they've beat the system by drinking diet colas and using artificial, non-caloric sweeteners, some studies that claim there are other health issues to consider. The sweet taste of a sugar-substitute on your taste buds may be enough to enact an insulin response. Some data even suggests that these the microbes in your gut change their composition when introduced to artificial compounds, and leads to issues in breaking down regular sugar.


One study showed a correlation between drinking diet beverages and more food consumption. The researchers wrote:



“Overweight and obese adults drink more diet beverages than healthy-weight adults and consume significantly more solid-food calories and a comparable total calories than overweight and obese adults who drink [sugar-sweetened beverages].”



Correlation doesn't mean causation, though. There are many studies on the issue, but not enough long-term data to say with certainty that artificial sweeteners are bad for you. The saying, “If something sounds too good to be true, it probably is,” comes to mind, and when it comes to health, it's better to avoid taking shortcuts to bettering yourself.


Read more at Time


Photo Credit: Jeanny/Flickr




What Does Internet Use Look Like During Christmas?



What Does Internet Use Look Like During Christmas?



It's Christmas Eve and people are driving, flying, and busing in from all over the nation (and maybe beyond) to see loved ones. Web publications set their posts to autopilot while the staff shrinks to a skeleton crew and office workers are no longer glued to their computers all day long. This situation begs the question, is anyone even on the internet over the holidays?


Joshua Brustein of Businessweek says we are, and in record numbers. For the rest of the week our internet usage will be higher than normal, according to Sandvine, a company that tracks web traffic. The data comes from Christmas 2013, and it tracks usage from the 23rd to the 26th. Each day tells it's own unique story of our ever-increasingly connected holidays.


The morning of Christmas Eve shows a spike in traffic that's much higher than in previous weeks. However, the internet doesn't see any peak traffic in the evening hours of the day--it simmers down to a lull. Brunstien and Sandvine speculate that this discrepancy may be because people are spending time with their families and stowing their phones for the evening.


On Christmas morning, there's a similar spike in the morning, dipping in the evening hours, but peak traffic goes on late into the night. It's possible people are playing with their new “connected” devices, and staying up later since most people have school and work off.


There's a trend of high morning traffic and low dinner-time use, but then users jump back on after partaking in some holiday ham to surf the web and engage later than in normal weeks. Perhaps, families are even sitting down together to watch some internet TV or stream a movie.


It would seem that during the holidays, the internet gets no sleep—in fact, it's in over-drive. But Sandvine believes the spikes are more from connected devices being put under the tree than a lack of family engagement. Sandvine reported that this heightened internet use is also seen during Apple product launches. People can't wait to take out their new toys for a test drive.


Read more at Businessweek


Photo Credit: Shutterstock




Why Eating Chinese Food on Christmas is an American Jewish Tradition



Why Eating Chinese Food on Christmas is an American Jewish Tradition



Chinese food on Christmas day has become a popular tradition among the American Jewish community. When everything else shuts down, call the local Chinese place to get some dinner. But do these restaurants really see that much traffic from customers on Christmas day?


Roberto A. Ferdman of the Washington Post investigated Google's search trends for Chinese food throughout the year. There's a considerable spike around December 25th for queries relating to “Chinese food” that date back to 2004 (when Google's trend data first became available).


Ferdman also notes that GrubHub reported a significant spike in past sales for Chinese restaurants on Christmas day, making it something of a Superbowl Sunday for the cuisine. Ed Schoenfeld, owner of RedFarm, confirmed this phenomena when he spoke to Adam Chandler of The Atlantic:



“Clearly this whole thing with Chinese food and Jewish people has evolved. There’s no question. Christmas was always a good day for Chinese restaurants, but in recent years, it’s become the ultimate day of business.”



As to why the tradition has become so heavily associated with the Jewish community, it may have started as the only dining option available, but has evolved into a Jewish American tradition.


Chandler reveals a far-deeper bond between the Chinese and Jewish communities that goes back to the years between 1899 and 1911 when the latter's population spiked in New York City from immigration. Their relationship starts with their similarities as the non-Christian others in America during that time, and continued with Chinese restaurants as one of the few places where Jews could get semi-Kosher food. Where Mexican, Italian, and American restaurants mix an overwhelming amount of dairy and meat together, Chinese restaurants offered an acceptable foreign alternative.


Schoenfeld said to Chandler:



“Chinese restaurants were the easiest place to trick yourself into thinking you were eating Kosher food.”



It's a symbiotic relationship that has gown over the years into an unique American tradition for these cultures, bringing people together in ways we never thought.


Read more at The Washington Post and The Atlantic


Photo Credit: Shutterstock




Tuesday, 23 December 2014

Traditional Gender Roles Won't End with Millennials



Traditional Gender Roles Won't End with Millennials



Millennials have been praised for their progressive stance on social issues, and reports have led us to believe that traditional gender roles will end with this generation. But J. Maureen Henderson of Forbes writes on a study that reveals this notion may be overly optimistic.


The Harvard Business School has been following their alumnae over the years, and have found that female graduates' ambitions are taking a back seat to men's. In a survey of alumni, male and female graduates both shared ambitious goals for their careers and personal lives. But, for female graduates, their aspirations fell short if they stopped to settle down and have a family.


Only a quarter of female graduates between the ages of 26 to 31 said they would allow their husbands' careers to take priority over their own, while 50 percent of men claimed their careers would take precedence over their wives'. The surveys seem to reveal a majority of men still hold more traditional views of family life. What's more, two-thirds of men expected that their wives would take over primary child care. Women, however, had a more progressive outlook, as 42 percent expected to do most of the child-rearing.



“What these men and women expect at this early stage in their careers and lives looks as incompatible—and unrealistic—as it was for earlier generations.”



If surveys from older graduates are any indication, the women may end up shifting their goals in order to be more in-line with their husbands'. However, the researchers indicate that, compared to older generations, Millennial men are less expectant for their careers to take priority. A third of male graduates also expected to split child care 50/50—compare that to 22 percent of Gen X men and 16 percent of Baby Boomers. However, in the workplace, these older generations still rule the roost, where there may be different notions of what work-life balance means for female Millennials. One 30-year-old alumnae confessed to researchers:



“I have thought about going to interviews without my [wedding and engagement] rings on so that an interviewer doesn’t get a preconceived notion of my dedication based upon where I might be in my life stage.”



Navigating a career and family life is not without its sacrifices, but the question will be whether future men and women will be willing to make those decisions together without falling back on traditional perceptions to guide their decisions. The idea of traditional roles still exists, the question will be be whether it keeps shrinking with each passing generation. The researchers hope that these findings will lead to more discussions based on honest expectations rather than it being based in optimism.



“In the end, we found not just achievement and satisfaction gaps between men and women, but a real gap between what women expect as they look ahead to their careers and where they ultimately land. The men and women who graduate from HBS set out with much in common—MBAs, high ambitions, and preparation for leadership. Perhaps it’s time for more-candid conversations—at home, at work, and on campus—about how and why their paths unfold so differently.”



Read more at Forbes


Photo Credit: Startup Stock Photos/Flickr




Bus Drivers Have a Higher Rate of Depression Out of Every Industry



Among Professionals, Bus Drivers Have Highest Rate of Depression



Mental health has a great impact on job productivity, so any industry with a high rate of depression would want to know, right? Joe Pinsker from The Atlantic writes on a new study that took individuals from various industries and found which one had the highest cases of depression.


The study was published in the journal of Social Psychiatry and Psychiatric Epistemology just last month. The researchers took 214,413 individuals employed in the western part of Pennsylvania during 2002 to 2005. Out of all these people, whose professions were grouped into 55 different industries, they found the highest rate of depression were among bus drivers (16.2 percent) and the lowest “among amusement and recreation services” (6.9 percent). The latter of which is a broad definition for one group, but includes people that work in fitness, sports, and the arts.


Pinsker points out that there are some similar characteristics between jobs with higher rates of depression than those with lower rates. Individuals that hold jobs where chance for physical activity is low and interaction with the public is high tend to have a more cases of mental illness, such as public transit, real estate, social work, and manufacturing. Whereas positions with more movement throughout the day and little contact with the public, like in recreational services (i.e. dance teachers), highway construction, and coal mining have significantly lower rates of depression (between 6 and 8 percent).


Next time you hop on the bus to or from work, maybe give your driver a “how do you do?” or appreciative “thank you” when you get on or off the bus. It may help make their day a little brighter. However, this study should also give people who work in these industries something to consider if they've felt a significant dip in their mood.


Read more at The Atlantic


Photo Credit: Shutterstock




What Influences Dog Owners to Pick Up After Their Pets?



What Influences Dog Owners to Pick Up After Their Pets?



If you're a dog owner, picking up after your pooch isn't the most glamorous job, but it has to be done. However, some owners neglect to pick up their dog's leavings, or bags full of their waste sit on the side of street. But why? Zazie Todd from Pacific Standard writes on a study that gets into the mind of the dog walker and the question of choice: To pick up the dog poo or not?


Researchers began their investigation by surveying several dog walking locations across the United Kingdom to see how bad the dog waste problem was. The online survey was completed with the help of 933 participants who walked popular paths to measure out how much poo was present.


In March and April of 2010, eight footpaths in Lancashire were checked for dog leavings. These paths included a mixture of urban and rural locations. They found 40 instances of dog waste in the space of 25 meters along a canal and near a reservoir, participants found 269 bagged pieces of dog poo in 1,000 meters.


The instances of bagged dog waste makes you wonder—the worst part of picking up the poo is over, why leave it on the side of the path? Is it an absence of trash cans? But researchers noted that in one path that had no bins, there was a lower level of feces present. So, perhaps the lack or presence of trash cans is not the answer to our original question. To find the answer, researchers developed an interesting questionnaire to figure out the psychology of a dog walker when it comes to picking up poo.


Todd makes a good point in her article, noting that people often put their best selves forward when they answer a survey. So, why would dog walkers divulge that they occasionally “forget” a bag or neglect to pick up their pet's waste. The researchers made the survey less about the poo and more about being a dog walker, and the results are still quite interesting. Almost all of the dog walkers agreed that people should pick up their pet's waste off the pavement and at parks. But participants didn't think they should always have to pick up their pet's poo. When it came to the countryside, 34 percent of pet owners believed they shouldn't have to pick up after their dog. When asked why they should pick up after their pet, most respondents chose because it's “the right thing to do” (reducing the spread of disease came in second).


Researchers wrote of their findings:



“The path audits suggested that visibility was a key factor in the behaviour of dog walkers with respect to dog waste and that some owners may only clean up after their dogs when obliged to (e.g. in the presence of others). It was considered that given the opportunity these dog walkers would seek to discard the bagged dog waste as quickly as possible and respondents considered that this was also an important factor influencing this behaviour.”



It would seem the pressure of being seen doing the right thing carries great weight. But there are some significant perceptions about certain locations that dictate whether it's ok to leave a pet's waste (i.e. livestock farms and the countryside). Perhaps this new study can help alter these perceptions, but it's difficult to change how people feel about actually picking it up, especially when no one's around to see you not do it.


Read more at Pacific Standard


Photo Credit: Robert F Gabriel/Flickr




Monday, 22 December 2014

World Religions Are Fading, But Forever? Probably Not.



World Religions Are Fading, But Forever? Probably Not.



Global belief in a higher power is down nine percent since 2005 to an all-time low of sixty-eight percent, according to a Gallup poll which surveyed people from fifty seven countries all over the world. The number of people who self-identify as atheist is also on the rise, having increased to three percent. That brings the total estimated percent of global non-believers to thirteen percent.


Insofar as religious belief is motivated by feelings of material and emotional insecurity, as many scientists and academics believe, the drop in popularity is not difficult to explain. Global economic security has risen more during our period of financial globalization than in any other previous time.



"Basically, people are less scared about what might befall them," says Quentin Atkinson, a psychologist at the University of Auckland, New Zealand.



Interesting, however, belief systems that rival traditional world religions are showing gains in some surprising places. In the UK, for example, paganism is the fastest growing religion. In the US, witchcraft is experiencing a resurgence.


This may be because the human brain is hardwired for religious belief, explains DSN expert and anthropologist Lionel Tiger:



So while rising global income may help explain why religious belief is waining among some populations, we all may be one catastrophe away from rediscovering religion. An ecological crisis created by climate change or an impending asteroid strike may revive our need to explain the meaning and cause of a sometimes cruel fate.


Read more at BBC Future


Photo credit: Shutterstock




Putting Scientists on Pedestals May Discourage Students From STEM Fields



Putting Scientists on Pedestals May Discourage Students From STEM Fields



Scientist are sometimes painted as larger-than-life figures in our history. These heroic depictions of their triumphs to advance humanity and change the world are meant to inspire us, but Alexandra Ossola of The Atlantic argues that it may intimidate and discourage kids from pursuing an education in science.


Take Marie Curie as an example. She was the first woman to win the Nobel Prize, she discovered two new elements, and she was considered a pioneer for her research in radioactivity. She seems like a fierce woman to say the least, driven by her passions for the sciences and ability to be a mother at the same time. Curie is held up as an example for women, showing that females can succeed in this male-dominated field and achieve a personal life.


Julie Des Jardins, author of The Madame Curie Complex: The Hidden History of Women in Science, says that Curie visited the U.S. in 1921, but rather than encouraging women to get into the sciences her reputation had proceeded her. She was know to American women as a great scientist who had managed to work and be a mother. Des Jardins said:



“... women in U.S. thought, ‘Oh god we could never pull off that perfection.’”



But that's because few people knew about the challenges she faced under the times—even today. When learning about the history of science she's painted almost as a woman who made the ultimate sacrifice in the name of scientific research. (Never-mind that the dangers of ionizing radiation were not known at the time.)


What's not taught is the constant criticism she faced in the media. In the early 1900s, the French press wrote about her “controversial” personal life. She was living with a married, but separated physicist named Paul Langevin. Ossola writes that the media called her a “seductive Jew” (even though she wasn't Jewish), whereas Albert Einstein never fell under fire for having six mistresses throughout his career.


Rather than telling a complete story about the struggles Curie faced along with her achievements, educators paint her as a larger-than-life figure as a means to encourage women to enter STEM fields, such as science, technology, engineering and math. Marie Curie is supposed to inspire, but instead may intimidate some women from entering the field.


Roger Highfield, an Einstein biographer, agrees with Des Jardins' observations, stating:



“When it comes to inspiring the public, it can be a choice between telling a heroic scientific tale or saying something that will fail to ignite much interest.”



Perhaps educators need to strike a balance, telling the struggles with the successes of collaborative study. Teachers can still engage their students with exiting personalities from science, just make sure they're real, and not over-inflated.


Read more at The Atlantic


Photo Credit: NASA Goddard Space Flight Center/ Flickr




Fast Food Slows Brain Development in Children



Fast Food Slows Brain Development in Children



The ill-effects of fast food on our physiques is well-documented, but a new study reveals the harsh outcomes it could also have on a child's brain chemistry and ability to learn.


Kelly Purtell led the study at Ohio State University, she spoke to Edward Malnick from the Telegraph about her results, saying:



“Research has been focused on how children’s food consumption contributes to the child obesity epidemic. Our findings provide evidence that eating fast food is linked to another problem: poorer academic outcomes.”



Malnick reported the results of the study, which showed kids who ate fast food had lower test scores in math, science, and reading.


Researchers took 8,544 American school children who were 10 years of age when the study began. The team measured how often they consumed fast food. Of the participants, 52 percent said they'd eaten fast food up to three times the week before, 10 percent had consumed it four to six times, and 10 percent had eaten it every day. Researchers then checked back in three years later to compare test results of those children, taking into account factors like socioeconomic status, physical activity, and how often they watched TV.


The kids that never ate fast food scored 83 points on a science test, while the children who ate it every day scored an average of 79 points. Researchers explained the discrepancy, suggesting there may be a disruption in brain development--stunting some of the children's ability to learn. They point out that fast food is not rich in certain nutrients that helps brain growth, like iron. Its absence would slow the developmental process, and combined with sugar and fat creates a mixture that could hinder children from understanding and learning new lessons in the classroom.


Fast food is easy and cheap, and as Americans work longer hours it's difficult to whip-up a nutritious meal every morning, noon, and night--just thinking about it makes it seem like an endurance trial. However, parents may need to evaluate their work-life balance in order to make time for healthy fixings for their kids.


Read more at Telegraph


Photo Credit: Shutterstock




Use Empathy Before Facts When Debating a Conspiracy Theorist



Use Empathy Before Facts When Debating a Conspiracy Theorist



People around the world subscribe to all kinds of conspiracy theories. There's a fascination to stories about the magic bullet and aliens crashing out in the desert. But we imagine people with tin hats, sitting on the outskirts of town when we think of the conspiracy theorist, but this image may only be a caricature of the truth.


Eric Oliver and Tom Wood, both political scientists at the University of Chicago, have been researching conspiracy theorists for eight years, sharing some of their insights in an article for New Scientist. They've found that half of Americans subscribe to at least one of the more common conspiracy theories out there. These beliefs are held across all political ideologies and education levels. Though, some more readily adopt these beliefs more than others.


Some conspiracies have a bent, which make them more appealing to one side or the other. For instance, Oliver and Wood say that more conservatives tend to believe Barak Obama's birth certificate was fabricated, while liberals tend to subscribe to the belief that 9/11 was an inside job by the government to rally the nation and start a war.


That brought them to wonder why these conspiracy theories affect so many of us—no matter our political leanings or socioeconomic status. They surmise it must be in our primal psychology. They write in their article for New Scientist:



“The brain did not evolve to process information about industrial economies, terrorism or medicine, but about survival in the wild. This includes a tendency to assume that unseen predators are lurking or that coincidental events are somehow related.”



The story our minds' weave are simple with a good guy and a bad guy. There's no misunderstandings or messy rivalries that could clutter up the narrative. Oliver and Wood say that these theories are all fine when it comes to aliens crashing in the desert. But when politicians are trying to talk about important issues that have an affect on the public, it's difficult to sustain a debate. The discussion ends before it even begins. Then the question becomes, how do you begin to have a meaningful discussion with a conspiracy theorist about these issues?


It all comes back to psychology. Oliver and Wood say that facts will not dissuade them, it will only shut down the discussion that much faster—instead empathize. It's true, other studies have shown people feel threatened when facts conflict with anyone's beliefs. People will throw back untested assertions—anything to defend the world they've come to understand. But when we understand and appreciate the emotional reasoning behind the belief, we may be better equipped talk about the issue in a way they'll comprehend.


Read more at New Scientist


Photo Credit: Shutterstock




Sunday, 21 December 2014

Boost Your Immune System with Hugs



Boost Your Immune System with Hugs



Hugs may have healing properties (beyond making you feel warm and fuzzy). This flu season add a hug a day to your regimen--it may help lessen your symptoms should you fall ill, according to one study.


The find was published in Psychological Science and highlighted in Carnegie Mellon University's news by Shilo Rea. Researchers wanted to assess what social support and hugs had on illness. The study singled-out participants that may be more susceptible to a cold's symptoms because of their heightened level of stress in their lives.


The team took 404 adult participants and assessed their perceived level of social support through a questionnaire. Every evening for two weeks, researchers would call participants to inquire about any conflicts in their lives in order to assess their level of stress and how many hugs they received to measure social support. Participants were then intentionally exposed to the common cold and put in quarantine to monitor their symptoms.


The results showed that social support did dictate how bad the symptoms progressed. Those that had a daily helping of hugs had less severe symptoms. Overall, it helped if participants had a great perception of social support and hugs whether or not they were under a great deal of stress. The led by Sheldon Cohen, Professor of Psychology at the Robert E. Doherty University, noted in a press release:



"This suggests that being hugged by a trusted person may act as an effective means of conveying support and that increasing the frequency of hugs might be an effective means of reducing the deleterious effects of stress. The apparent protective effect of hugs may be attributable to the physical contact itself or to hugging being a behavioral indicator of support and intimacy."



One other study, published back in 2010 in the journal of Developmental Review , showed that there was a reduction in heart rate and blood pressure with participants who received massage therapy. Researchers also reported a boost in their immune systems, increasing their “natural killer cells,” as well as decreasing their cortisol levels (a hormone associated with stress).


It's possible that a dose of hugs may be a more welcome immune booster during the cold and flu season. So, instead of running out to buy a pack of vitamin C, consider giving a friend or loved one a hug. But make sure you're not in a state to pass on any infections in the process.


Read more at Carnegie Mellon University News


Photo Credit: Qihui/Flickr




Tourism Threatens to Expose Antarctic Penguins to New Pathogens



Tourism Threatens to Expose Antarctic Penguins to New Pathogens



Humans may be posing a biological threat to Antarctica's most iconic flightless bird: The penguin. One study suggests that the rise in tourism and research teams in the southernmost continent on planet Earth is compromising the health of these animals.


Penny Sarchet of New Scientist writes on the study that was published in the journal of Polar Biology . Researchers believe antarctic creatures, particularly the penguin, have less-developed immune systems because of their isolation, which has made them susceptible to the diseases introduced from humans touring the continent. It's reported that 37,000 people visited Antarctica in the 2013 to 2014 season—when just 200 years ago man hadn't set foot on the continent. Even 20 years earlier Antarctica was only playing host to around 8,000 people. But now the continent has become a destination, which, of course, involves a photo op with the penguins.


Wray Grimaldi of the University of Otago in Dunedin warns of the potential outcomes of this latest surge:



"The effects of both a growing tourism industry and research presence will not be without consequences. Penguins are highly susceptible to infectious diseases."



She bases some of her assumptions off surveys from penguins in captivity from as early as 1947. These animals were treated for diseases, such as Salmonella, E. coli, West Nile virus, and Avian pox. She also cites outbreaks in Antarctica dating back to 1969 where some diseases ravaged populations with mortality rates as high as 60 percent in one 2008 study.


Grimaldi doesn't lay the blame entirely on humans, though. The rising temperatures due to climate change has altered the migration patterns of some birds, causing some to make landfall in Antarctica (along with their pathogens).



"Climate change may result in a number of stressors that make it more difficult for penguin populations to deal with disease."



Read more at New Scientist


Photo Credit: NOAA Photo Library/Flickr




Friday, 19 December 2014

Picturing Mary: Yesterday and Today



Picturing Mary: Yesterday and Today



Christmas may be Jesus’ “birthday,” but, as any mother will tell you, his mother Mary really deserves the applause. Providing the humanity half to join with Christ’s divine side, Mary volunteered to play a part from the Incarnation to the Crucifixion to the Resurrection as everything from an active participant to an interested bystander, depending on your interpretation of Christian scripture. Picturing Mary: Woman, Mother, Idea , a new exhibition at the National Museum of Women in the Arts, Washington, DC, takes a closer look at how artists, especially women artists, depicted Mary in the more faithful past as well as how modern artists, especially women artists, still use Mary in the secular present. By making Mary the star of the show, Picturing Mary shines a light on how we see Mary reflects on how we see ourselves.


But why would the NMWA, an institution committed to the promotion of women artists, pick a figure such as Mary that’s seen by some as a poor feminist model, or at least the product of male-dominated Christian traditions in faith and art? Wilhelmina Cole Holladay, Founder and Chair of the Board of Trustees of the NMWA, explains in her foreword to the exhibition’s catalog that the idea for Picturing Mary started may years before the NMWA even opened. During a conversation with other women involved in the formation of the museum, one told Holladay, “[Y]ou simply must have an exhibition about the Virgin Mary. She has inspired the great artists throughout history and has been painted in every generation.” “That thought,” Holladay writes, “ever stayed with me.” The NMWA chose Marian scholar Monsignor Timothy Verdon, the director of the Museo dell’Opera del Duomo in Florence, Italy, to curate Picturing Mary in consultation with the NMWA’s chief curator, Kathryn Wat.


“How did people picture Mary?” Verdon asks in his opening catalog essay. “What sources shaped their mental image of this not easily imaginable woman, at once virgin and mother? What ideas did they associate with her?” From those deceptively simple questions, Picturing Mary presents 60 paintings, sculptures and textiles (many shown in the United States for the first time) on loan from the Vatican Museums, the Louvre, the Galleria degli Uffizi, and other public and private collections to examine how Mary has acted as the titular woman, mother, and idea since the 6th century.


Picturing Mary makes its point using some of the heaviest hitters of the Old Masters lineup: Michelangelo, Botticelli, Dürer, and Fra Filippo Lippi. It also finds a place for lesser known artists such as 15th century Italian artist Cosmè Tura, whose painting of the Madonna and Child related terracotta relief show Mary with exceptionally large hands and elongated fingers that seem odd to modern eyes but would have signified for the faithful of the time a kind of spiritual intensity. Many early depictions of Mary seem odd as artists struggled to strike a balance between Mary’s humanity and her divine connections through Jesus, ending up with a combination of humble handmaiden and regal queen. The black-and-red chalk drawing by Michelangelo in the exhibition (a possible study for statuary for the Medici Chapel) shows Mary nursing a very hungry baby Jesus, which reflects the Renaissance turn toward accentuating both Jesus and Mary’s humanity in order to foster the idea of her as the bridge between the human and the divine.


But as interesting as these male artists’ takes on Mary are, the more interesting approaches come from the exhibition’s quartet of women artists—Sofonisba Anguissola, Artemisia Gentileschi, Orsola Maddalena Caccia, and Elisabetta Sirani. The ladies are clearly outnumbered in Picturing Mary, as they are throughout art history as it fights to right that patriarchal wrong, but their contributions are powerful. Anguissola’s Self-Portrait at the Easel (detail shown above) captures in one single image many of the themes of Picturing Mary. Painted in 1556, this self-portrait shows Anguissola plying her trade as an artist—an unusual occupation for a woman of the time—as she paints the Madonna and Child in a tender, playful pose. “Here her careful attire and the grave dignity with which she wields her brushes may imply Sofonisba’s claim to a respect not only equal to that given male artists,” Vernon writes, “but similar indeed to the respect accorded the first painter of the Virgin, Saint Luke. For, quite apart from the question of divine inspiration, who better than a woman can ‘picture’ the woman Mary?”


Although Michelangelo and the first art historian Giorgio Vasari praised Anguissola’s talent and she even served as court painter to Philip II of Spain, Anguissola’s gender prevented her from the anatomy study and life drawing that men pursued to paint large-scale, multi-figure religious and history paintings—the blockbuster hits of the age. So, Anguissola gives us here the two genres left to her gender—portraiture and small-scale, devotional works. As Vernon asks, “[W]ho better than a woman can ‘picture’ the woman Mary?” Mary, thus, becomes a mirror for Anguissola and other woman artists constrained by social roles but straining against them as best as they can, subverting while seemingly conforming to the norm.


Vernon calls Aguissola’s work “a personal testimonial,” but, as Melissa R. Katz points out in the final catalog essay, “Mary, the Mirror: Sacred Imagery and Secular Experience,” Mary continues to serve not just as a mirror, but also as a means of expression for women artists. “For better or worse, visual depictions of the Virgin Mary offer a rare sustained portrait of womanhood across three millennia, albeit one heavily shaped by male perceptions of an ideal persona,” Katz writes. “But we work with what we have, knowing that if Mary is not our exact mirror, we can at least discern some family resemblance.” Women artists need to use Mary for the simple fact that she’s the oldest, most enduring female figure—for good or ill—in Western civilization. However, the beauty of Mary as subject is her plasticity. “If we see in her framed face a tired parent rather than a submissive paradigm,” Katz argues, “we are merely demonstrating Mary’s long tradition of adaptability to the needs of those who need her.” If modern women artists need a heroine, Mary—woman, mother, and idea—is diverse and deep enough to fit the role.


For Katz, “[m]ore surprising than [Mary’s] persistence in the religious imagination is her presence in the contemporary art world. Where other sacred personages have faded to footnotes, the Virgin Mary has found renewed relevance as a feminist icon, spiritual touchstone, and banner of political identity.” Katz cites Grayson Perry, Betye Saar, Kiki Smith, and Catherine Opie as just some of the contemporary artists riffing on the Madonna. Zineb Sedira’s Self-Portraits or The Virgin Mary “is one of the most poignant artworks to touch on this theme” for Katz in the way that it “invokes the common garments once worn by women of faith around the world, but now associated primarily (and often pejoratively) with Islam” and “also reminds us that Muslims have just as much claim to the Virgin Mary as Christians, or Jews for the matter.” Although the majority of the works in Picturing Mary look back, Katz’s essay powerfully proves that Mary is not only present in art today, but also might be the key to women’s art in the future. Katz concludes, “The figure of Mary, ambiguous, recognizable, and profoundly visible, can help provide a bridge between the legacy of Western culture and the generations poised to inherit it.”


In searching for an older work of “religious religious art so extraordinary and compelling that it transcends all categories of faith and belief, and makes its meaning felt in ways that are both personal and universal,” Katz came upon the Vierge ouvrante , or Triptych Virgin. What makes that triptych so special is that each sculpture is a doorway to more images inside. Likewise, Picturing Mary: Woman, Mother, Idea is a doorway through the imagery of Mary of the past to a new understanding of how that imagery can be seen and used in the future, most importantly by women artists who can use the concept of Mary as a human with divine connections to make their own connections to the modern world.


[Image: Sofonisba Anguissola, Self-Portrait at the Easel (detail), 1556; Oil on canvas, 26 × 22 3/8 in.; Muzeum-Zamek, Łańcut; inv. 916MT.]


[Many thanks to the National Museum of Women in the Arts, Washington, DC, for providing me with the image above from, a copy of the catalog to, and other press materials related to Picturing Mary: Woman, Mother, Idea , which runs through April 12, 2015.]


[Please follow me on Twitter (@BobDPictureThis) and Facebook (Art Blog By Bob) for more art news and views.]




Thursday, 18 December 2014

Water Worlds May Be the Future of Planetary Colonization



Water Worlds May Be the Future of Planetary Colonization



Life under the sea may be home to some future planetary colonizers. Sights like Rapture, as depicted in the popular dystopian video game Bioshock, may become commonplace. Jennifer Chu of the MIT News Office highlights a recent study, published in the journal Icarus , that discusses the new criteria introduced in measuring the possibilities of habitable worlds.


There are some important characteristics that make a planet ripe for colonization—oxygen, water, atmosphere, and so on. But only one such planet exists within our own solar systems, looking beyond are an unimaginable number of worlds--nearly 2,000 have been discovered already. Researchers at MIT are arguing the criteria involved when scrutinizing a planet's obliquity—its axel tilt--which may open up new options for habitation.


Scientists have thought that seeking out a planet with a relatively low obliquity (like Earth) would be an important measurement in order to classify a planet as habitable. But scientists now believe that a planet with a horizontal axel tilt that resembles that of a rotisserie chicken could sustain life. That is, so long as the planet is covered in water.


One of the numerous problems that come with a horizontal tilt is the planet's day/night cycle. Its north pole would experience daylight for six months followed by another six of darkness. On top of that the planet's climate would fluctuate to extremes. David Ferreira, co-author of the study and lecturer at the University of Reading, explained the issue further:



“The expectation was that such a planet would not be habitable: It would basically boil, and freeze, which would be really tough for life.”



Their research, however, provides new insight, claiming that so long as a planet is covered in an ocean at least 50 meters deep, these extremes wouldn't pose as much of an issue.



“We found that the ocean stores heat during summer and gives it back in winter, so the climate is still pretty mild, even in the heart of the cold polar night. So in the search for habitable exoplanets, we're saying, don't discount high-obliquity ones as unsuitable for life.”



In simulations of an earth-like planet with a high obliquity, scientists found that the water depth can't go below 50 meters. At 10 meters of water spanning the globe, the planet wouldn't be able to sustain life. Instead, the minute frost began to form when temperatures dropped, a snowball effect would occur, spreading ice to the dark side of the world. Once the planet turned to face the sun, its rays would bounce off the ice, having no effect in warming the frozen surface, and forever covering the planet.


There's a 0.1 percent chance of one of those 2,000 planets supporting a water world, so aqua planet possibilities aren't high... for now. The chances for life aquatic only increase with more planetary discoveries, so get your scuba gear ready.


Read more at MIT News


Photo Credit: MarcelClemens/Shutterstock




Wednesday, 17 December 2014

Dads-to-Be Experience Prenatal Hormone Changes Too



Dads-to-Be Experience Prenatal Hormone Changes Too



It's well-documented what women can expect when they're expecting. But less is known about whether or not men go through similar changes. Alexandra Sifferlin from Time reports that a new study has shown men undergo significant hormonal changes as well.


The study was published in the American Journal of Human Biology . Researcher took 29 male and female couples expecting their first child and tracked their hormones levels of testosterone, cortisol, estradiol, and progesterone at weeks 12, 20, 28, and 36 of pregnancy. They tested these levels by taking saliva samples from the participants.


Women showed increases in all four hormones over the course of the study, while men showed dips in their testosterone and estradiol levels, and no changes to cortisol or progesterone levels. But there’s still a lot of questions as to why these changes happen and what benefit do they offer in nature.


Sifferlin suggests that prior research may hold some answers that attribute men's changing hormones to sleep disruptions or less sexual activity. There's also some that think the psychological apprehension of becoming a parent may be a trigger. What is known is more comparative test will have to be conducted in order to come to any legitimate conclusions. The authors did make a note on intentions for future study:



“It will be important for future research to determine whether the changes that we observed in men’s hormones reflect processes associated with fatherhood specifically, or long-term pair-bonding more generally.”



Read more at Time


Photo Credit: Shutterstock




What Killed the Dinosaurs Drove the Kangaroo's Cousin to Extinction



What Killed the Dinosaurs Drove the Kangaroo's Cousin to Extinction



The theories behind the demise of the dinosaurs is well-known. Death by asteroid is one of the more popular possibilities, but volcanic eruptions may have had a part to play. Regardless, these reptilian giants died-out--food became scarce and temperatures dropped, allowing our, smaller furry mammalian ancestors to have their time in the sun. But Eric Mark of Forbes explains that our species could have been wiped out just as easily, according to a recent study.


One of the authors on the research team published in the journal ZooKeys , Dr. Steve Brusatte from the University of Edinburgh, said in a press release:



“The classic tale is that dinosaurs died out and mammals, which had been waiting in the wings for over 100 million years, then finally had their chance. But our study shows that many mammals came perilously close to extinction. If a few lucky species didn’t make it through, then mammals may have gone the way of the dinosaurs and we wouldn’t be here.”



The disruption of the dinosaurs allowed mammals a unique opportunity at the end of the Cretaceous period to survive and thrive as they hadn't before. However, metatherian mammals (animals with pouches) suffered great losses after the cataclysmic event. From fossil records in America's Great Plains, researchers found that diversity among the species dropped significantly after the event and an estimated two-thirds of them died out in North America alone. The study explained that this loss may explain why marsupials can only be found in unique places, such as Australia and South America.


This extinction event for the kangaroo's and opossum's cousin allowed placental mammals (mice, humans, dolphins) to evolve and thrive into the Paleogene period and beyond.


Read more at Forbes


Photo Credit: Marie Hale/Flickr




Using War Metaphors to Describe Cancer Hurts Patients



Using War Metaphors to Describe Cancer Hurts Patients



Cancer survivors in the media talk about fighting against this disease and winning, but recent research says these war metaphors are doing more harm than good. Justin Worland of Time points to a study that shows linking cancer to war themes may hurt chances of prevention, which could mean the difference between someone taking the right steps to get treatment or waiting till it's too late.


Words are powerful and when you give something as frightening as cancer words like “hostile” and “fight” doctors may be giving ammunition to the “enemy” instead of patients. These trigger words get attention, but when it comes to influencing people to limit their risk of getting the disease, the war metaphors fail to make an impact.


In the study, set to be published in the January issue of Personality and Social Psychology Bulletin, researchers gave several groups of participants different messages about cancer with different buzz words, and then measured the influence they had. They found that groups showed no signs of reducing bad habits, like smoking, drinking, or eating red meat, when words like “hostile” and “fight” were used. What's more, any use of war-like metaphors had no effect on changing patients' intentions on seeking-out more aggressive treatments.



“Overall, these results suggest that enemy metaphors in cancer information reduce some prevention intentions without increasing others, making their use potentially harmful for public health.”



Led author David Hauser of University of Michigan explains that these words exaggerate the reality of cancer as an active battle that requires constant attention. This kind of thinking makes people shut down—opting for doing nothing rather than doing something simple (i.e. going to the doctor or cutting back on the beef).



“When you frame cancer as an enemy, that forces people to think about active engagement and attack behaviors as a way to effectively deal with cancer. That dampens how much people think about much they should limit and restrain themselves.”



Hauser does have a suggestion for the media to keep people aware and safe:



“What would be more beneficial would be changing the sorts of stories about cancer out there to expose aspects of the disease that don’t fit with this enemy conceptualization.”



Cancer is a disease that's not so much about fighting and winning, but about taking steps and hoping for the best. It's all part of the journey called life. So, while it may sound nice to put a glorified spin on a disease, the media has to understand that's not what people always need.


Read more at Time


Photo Credit: Zurijeta/Shutterstock




Tuesday, 16 December 2014

Why Do We Overeat and Crash at Holiday Feasts?



Why Do We Overeat and Crash at Holiday Feasts?



Round two of holiday feasting is on its way. No doubt you've had plenty of time to recover from your last food binge from Tahnksgiving, you may have even eaten so much you fell asleep on the couch. Christina Agapakis, biologist and writer for Popular Science, wrote an interesting piece explaining the holiday binge phenomena, like why we eat so much and what happens that makes us fall asleep on the couch. (Hint: The sugar rush from all the garlic bread you ate isn't it).


There's a theme of overeating that comes with the holidays, so much so that you may wonder how you're able to consume so much in one meal. Well, your stomach can hold about a gallon of food, which certainly helps. But what makes you able to eat more than you would during a normal dinner has to do with the variety of food at the table. Agapakis says this concept is known as the “smörgåsbord effect,” and it was defined by French physiologist Jacques Le Magnen in 1956.


To test his hypothesis, Le Magnen made a tiny feast for rats of a single kind of food. The rats would eat and stop when they were full. But when Le Magnen introduced four flavors of food, the rats ate three times as much, sampling each treat. Agapakis says the same concept can be applied to humans.


As for dozing after the binge, most people say it's the crash from sugar and carbs, but Agapakis says that's all bunk. She believes there's a perfect storm brewing in your body when you overeat and crash.


Typical food served during a holiday feast consist of chicken, turkey, fish, cheese, and eggs, which are all contain tryptophan. This chemical is converted into the sleep hormone melatonin, which we'll get back to that later. Then because of your overeating, you stomach signals your brain to slow down on the rolls and your digestive system to speed up its processes. After that, the extra carbs consumed from pie, potatoes, and rolls are converted into simple sugars that forces your body to release insulin, which then cues the cells to start absorbing the extra sugar. But in the process, some of that tryptophan from earlier gets in, which causes you to start your journey to the couch. Unless Grandma saves you with a brew of coffee.


Read more at Popular Science


Photo Credit: Shutterstock




Health Myths About E-Cigarettes Cause Rising Popularity Among Teens



Health Myths About E-Cigarettes Cause Rising Popularity Among Teens



The tobacco industry has lost its hold on young teens, smoking is at an all-time low. But they may be getting it back through e-cigarette companies. Several recent studies reveal that e-cigarettes are attracting more teens, and it's misconceptions about the risks that could cause damaging, long-term effects.


E-cigarettes are battery-charged devices that deliver nicotine through vaporized liquid. The New York Time's Rachel Peachman reports that the vapor has hundreds of flavored options, including bubble gum and chocolate, which is helping to attract younger users that would be deterred by smoking's gross taste. The entire package makes it all seem like a safer delivery system (no smoke, so it must be ok), but e-cigarettes have their own set of health risks.


Nicotine is a neurotoxin that can have damaging effects on young, underdeveloped brains. Not to mention that a list of dangerous chemicals and metals have been found in e-cigarettes, such as lead and formaldehyde. Peachman reports that a lack of safety regulations by the US and oversights from manufacturers in China are the cause of these issues. But these concerns aren't reaching the youth, where e-cigarettes can pose the most damage.


A recent study released by the University of Michigan's Monitoring the Future research group revealed that e-cigarette use has surpassed tobacco use. Each year the group surveys anywhere from 40,000 to 50,000 students in 400 schools across America. The group is in its 40th year of study, monitoring drug trends among youngsters. Among 8th, 10th, and 12th graders e-cigs are twice as common as regular cigarette use.


When researchers asked kids if they used an e-cigarette in the last 30 days, 16 percent of 10th graders and 17 percent of 12th graders surveyed said yes. Richard Miech, Professor of Social Research at the University of Michigan, explained why more youths are adopting this new device:



“Part of the reason that e-cigarettes are so popular among youth is that they have a very low perceived health risk.”



The study reports only 15 percent of 8th graders think e-cigarettes are harmful, whereas 62 percent believe smoking tobacco cigarettes on a regular basis poses great risk to your health. Health advisers are battling a new delivery system of an addictive drug, which has little long-term study connected to it. Furthermore, Peachman reports in her article that one study published in the journal Pediatrics “raises the possibility that e-cigarettes are recruiting lower-risk adolescents who would otherwise be less susceptible to smoking,” according to Thomas A. Wills, lead author and co-director of the Cancer Prevention and Control Program at the University of Hawaii.


Right now there's no federal regulation on the sale of e-cigarettes to minors, however, some states have taken the initiative in banning its sale to under aged youths. But while the FDA and health administrators continue to debate the pros and cons of e-cigarettes, the industry has a head start to market how slick you'll look vaping. Health professionals must feel like they're back to square one.


Read more at the New York Times


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'Impartial' Refs May Make Calls to Favor Home Team, Subconsciously



'Impartial' Refs May Make Calls to Favor Home Team, Subconsciously



Fans like to blame refs' bad calls on biased. Some think this tactic is used to mask their team's defeat. But the home field advantage may not be the myth some people think it is. It's a statistical fact, according to three economists.


Max Ufberg of Pacific Standard writes on a study conducted by Abhinav Sacheti, Professor David Paton of University of Nottingham, and Professor Ian Gregory-Smith of University of Sheffield. The three reviewed 1,000 professional cricket matches from 1986 to 2012, where they observed the refs' calls and how many times the home or away team benefited from those rulings. The research team focused on a particular ruling called the Leg Before Wicket (LBW). This call concerns a possible foul on the batter where the ball would have hit the wicket if not for the batter's body obstructing the throw.


The team found that away teams suffered a biased from LBW calls 10 to 16 percent more than their hosts. Researchers hypothesized in their abstract whether the home crowds influenced these biased calls. However, the team found that these rulings were more pronounced toward the end of a game than in the early stages. An interesting find, as crowds are often at their smallest toward the end in cricket (matches can last for five days)—eliminating the question of crowd influence on the officials decisions.


After a 1994 mandate, calling for one umpire to reign from a neutral site, there was a drop in calls favoring the host. Away teams only got called for LBWs 10 percent more. Before this new rule was in place both officials came from the home team's region. Another mandate in 2002 called for both umpires to be from a neutral area, which dropped the percentage even further.


"When two neutral umpires were required in every Test match, this advantage to home teams disappeared. This result holds even when we control for the quality of teams, the ground where the match was played and so on."


Regardless of this find, fans will likely continue to blame biased for their team's loss. Whether it's true for their sport or not.


Read more at Pacific Standard


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