【推荐2】Colour saturation(饱和) refers to the intensity(强度) of the reds, greens and blues. Photos high in colour saturation make food look fresher and tastier to viewers, which increases their willingness to order the menu items, a new study suggests. “In the restaurant business, these results provide a simple method to increase sales,” said Stephanie Liu, lead author of the study and associate professor of hospitality management at the Ohio State University. “On Instagram, it means using the ‘X-Pro Ⅱ’ filter(滤镜) on your food photos rather than the ‘Early bird’ filter. It costs nothing, so it’s an easy win for restaurant marketers.

In one survey, 267 participants were asked to imagine themselves looking through options on an online food-ordering platform. They were shown photos of a poke bowl, a Hawaiian dish featuring fish, vegetables and sauce over rice. They were randomly asked to view one of the four different photos with either high or low colour saturation and either close or farther away visual distance. The food in the more highly-saturated photos looked fresher and tastier to participants, and that led them to be more likely to purchase the food. But colour saturation had a stronger effect when the food appeared more distant in the photos. “When the food is shown close up, it’s already easy for the viewers to imagine how fresh and tasty the food would be,” Liu said. “Colour saturation is not as necessary.”

In the second survey, 222 online participants were asked to imagine they were looking through photos of pizza from a restaurant near their home. They were told they would either be eating alone or with their family. As in the previous study, the food in the colour-saturated photo was always seen as fresher and tastier and one that people would be more likely to buy. But that effect was stronger for people who were told they would be eating alone. “When people are eating with others, the social experience is a big part of what people look forward to,” Liu said. “But when they are eating alone, they focus more on the food itself.”

“These findings are more important now than ever before,” Liu said. “With people ordering online, restaurants have to post pictures of their food on online ordering platforms. They should pay more attention to the photos they post as they do to the text. Colour saturation is one key element they need to focus on.”

【推荐2】National Guide Dog Month is held in September every year. It is a month-long celebration set apart to honor the work of guide dogs and raise awareness, appreciation, and support for guide dog schools across the US. Guide dogs go through demanding training from an early age. They help those with sensory issues such as blindness and provide added mobility (移动能力) and independence for those who might not have otherwise had such freedoms.

The first attempt to train guide dogs was in Paris at the “Les Quinze-Vingts” hospital for the blind. The founder of the Institute for the Education of the Blindd “Blinden-Erziehungs-Institut” in Vienna, Johann Wilhelm Klein, wrote about guide dogs in his book published in 1819. This provides evidence that dogs have been helping humans for a long period.

After the World War I, when many soldiers came back blind, the use of guide dogs peaked. The demand for this service accounted for the opening of the first school for guide dogs in Oldenburg, Germany. Dog trainer Dorothy Harrison Eustis is credited with bringing the first guide dog to America, and Eustis later established the “Seeing Eye School” in Morristown, New Jersey.

Dick Van Patten was the inspiration behind National Guide Dog Month. He admired the ability of these dogs to improve the standards of life for those living with blindness but he was also aware of the time, energy, and cost that went into training these dogs. He decided to take action and raise awareness and provide financial support for guide dog schools. Van Patten owned a pet food company that underwrote (承担) all costs for the promotion of National Guide Dog Month. The first guide dog fundraiser was in Southern Califormia with the support of the Petco Foundation.

Thanks to Van Patten’s effort, many guide dog organizations have now become beneficiaries (受益者) of these month-long events. In the month of September, a drive is held to collect funds that go towards funding non-profit guide dog organizations accredited by the International Guide Dog Federation.

【推荐3】A study published Tuesday in the journal Psychonomic Bulletin & Review found that words expressing angry feelings sound alike in several unrelated languages. They’re less likely than other words to include the sounds L, R, W or Y. And more friendly versions of such words often have these sounds added. The finding suggests that certain rules may link the world’s languages, no matter how different they are.

Ryan McKay, co-author of the paper, happened to discover that some of the English curses (诅咒语) seem to have something in common; They’re often short and include the sounds B, P, T or K. Then Dr. McKay teamed up with his colleague Shiri Lev-Ari to learn whether these rules went beyond English.

During the experiment, they asked fluent speakers of Arabic, Korean, German and Spanish to list the worst words they could think of. Once they’d made a list of each language’s most commonly used curses, the researchers compared these with neutral (中性的) words from the same language. To their surprise, the rules still apply.

Next, the scientists asked the same people to listen to pairs of invented words, such as “yog” and “tsog” and guess which word in each pair was a curse. The subjects were more likely to guess that words without L, R. W and Y, such as “tsog”, were curses. Finally, the researchers looked through the dictionary for English curses and their cleaned-up versions. Once again, the cleaned-up versions included more of the sounds L, R, W and Y.

“Most 20th-century language scientists held that any word could have any meaning,” said Dr. McKay. “With curses, though, the sounds themselves seem to carry meaning. This can shape and change our understanding of how languages are formed.”

“It is the first time for researchers to study curses across languages and the finding is very interesting,” said Benjamin Bergen, a language scientist at the University of California, who was not involved in the study. “But it is just another case of what’s called sound symbolism in the language study: A word sounds like what it means.”