We have two daughters: Kristen is seven years old and Kelly is four. Last Sunday evening, we invited some people home for dinner. I dressed them nicely for the party, and told them that their job was to join Mommy in answering the door when the bell rang. Mommy would introduce them to the guests, and then they would take the guests' coats upstairs and put them on the bed in the second bedroom.

    The guests arrived. I introduced my two daughters to each of them. The adults were nice and kind and said how lucky we were to have such good kids.

    Each of the guests made a particular fuss over Kelly, the younger one, admiring her dress, her hair and her smile. They said she was a remarkable girl to be carrying coats upstairs at her age.

    I thought to myself that we adults usually make a big "to do" over the younger one because she's the one who seems more easily to be hurt. We do it with the best of intentions.

    But we seldom think of how it might affect the other child. I was a little worried that Kristen would feel she was being outshone. I was about to serve dinner when I realized that she had been missing for twenty minutes. I ran upstairs and found her in the bedroom, crying.

    I said, "What are you doing, my dear?"

    She turned to me with a sad expression and said, "Mommy, why don't people like me the way they like my sister? Is it because I'm not pretty? Is that why they don't say nice things about me as much?"

    I tried to explain to her, kissing and hugging her to make her feel better.

    Now, whenever I visit a friend's home, I make it a point to speak to the elder child first.

    Like people, plants experience stress. And also, like people, the response to that stress can determine success.

    Bad environmental conditions, such as drought, flood, heat and other stresses, affect yields (产量) more than crop pests and diseases. We are trying to find a way to equip plants with the ability to tolerate environmental stress and maintain high yields, said Stephen Howell, a professor of genetics and cell biology.

    Plant cells produce proteins (蛋白质) and ship them to different parts of the cell. Under normal conditions, these proteins are folded into their normal, healthy structures as they are produced. When a plant is under stress, its cells produce poorly folded or unfolded proteins. Then a built-in system senses this and “sets off an alarm in the cell,” said Howell.

    In response to the alarm, another protein (IRE1) starts working and creates a different process which activates (激活) the stress response genes whose products bring about defensive measures that help the plant survive.

    “As it turns out, responses that are activated under stress conditions actually inhibit the growth of plants,” said Howell. “This allows them to preserve their energy to survive the stress conditions.”

    For plants in the wild, this response is a help for survival, he said. In production of agriculture crops, however, this response reduces yields.

    “You don't want crop plants to stop growing,” Howell said. “You want them to continue to grow and produce even though they are under stress.”

    With the new understanding of this stress response, the next step may be to silence the alarm system, said Howell. “What may be important is to disable some of these stress responses. That may make the plant more productive under stress conditions.”

    July is a month of fun-filled activities for kids and teens as long as you know where to find them. When you want some fun activities for July, consider these ideas happening in this month.

    When I was a very little child, I remember watching TV and seeing other children suffer in other parts of the world. I would talk to myself, "when I grow up, when I can become rich, I'll save kids all over the world."

    At the age of 17, I began my career here in America, and by 18, I started my first charity organization. I went on to team up with other organizations in the following years, and met, helped, and even lost some of the most beautiful souls, from six-year-old Jasmina Anema who passed away in 2010 from leukemia (白血病)—her story inspired thousands to volunteer as donors, to 2012 when my grandmother lost her battle with cancer, which is the very reason and the driving force behind the Clara Lionel Foundation (CLF). We're all human. And we all just want a chance: a chance at life, a chance in education, a chance at a future, really. And at CLF, our mission is to impact as many lives as possible, but it starts with just one.

    People make it seem too hard to do charity work. The truth is, you don't have to be rich to help others. You don't need to be famous. You don't even have to be college-educated. But it starts with your neighbor, the person right next to you, the person sitting next to you in class, the kid down the block in your neighborhood. You just do whatever you can to help in any way that you can. And today, I want to challenge each of you to make a commitment to help one person, one organization, one situation that touches your heart. My grandmother always used to say, "If you've got a dollar, there's plenty to share."

    An 8-year-old southeast Kansas girl is being praised for her quick, calm thinking. She grabbed the steering wheel(方向盘) and drove the family's SUV when her mother fell unconscious on their highway ride to school.

    Abby Porter and her mom, Shelly, were heading for her school in Riverton when Shelly had a medical emergency. She passed out(昏倒) behind the wheel.

    Abby is a second-grader whose father sometimes lets her drive their tractor. With her mother falling down heavily, Abby leaned over and took the wheel. At some point, Abby even successfully performed a U-turn on the four-lane highway, because she was going home to her daddy, according to Galena Police Chief Larry Delmont.

    "That was at 8:37 in the morning, and there was a lot of traffic," Delmont said. Officer Jimmy Hamilton noticed the SUV going about 20 mph and weaving a bit between the two lanes. He suspected someone was driving under the influence. As he got closer, he noticed the woman fell over in the driver's seat and saw Abby at the wheel.

    Hamilton tried to get in front of Abby's car to slow her down, but she kept switching lanes to avoid bumping into his car. Hamilton got alongside her and told Abby to stop the vehicle, but she didn't know how. He then told her she needed to bump into him to stop the car, but Abby said she didn't want to because she was afraid. He convinced Abby bumping into his car was OK.

    "I never saw her cry," Hamilton said. "From just the expression on her face and the tone of her voice, you could tell she was scared. But she stayed with it."

    Emergency crews got Abby's mother to the hospital, but Delmont said he didn't know what caused her to lose consciousness.

    The police department in Galena, a town of about 3,000 residents about 150 miles south of Kansas City, planned to present Abby with a plaque(匾牌) for "outstanding bravery in a life-threatening situation".

Humans' overconsumption of resources is a leading contributor to global climate change, says University of Arizona researcher Sabrina Helm. Therefore, it's increasingly important to understand the choices consumers make and how those decisions affect the health of a planet with limited resources. In a new study, published in the journal Young Consumers, Helm and her colleagues explore how materialistic values influence pro-environmental behaviors in millennials, who are now the nation's most influential group of consumers.

The researchers focused on two main categories of pro-environmental behaviors: reduced consumption, which includes actions like repairing instead of replacing older items; and "green buying," or purchasing products designed to limit environmental impacts. The researchers also looked at how engaging in pro-environmental behaviors affects consumer well-being.

More materialistic participants, the researchers found, were unlikely to engage in reduced consumption. However, materialism did not seem to have an effect on their likelihood of practicing "green buying." That's probably because "green buying," unlike reduced consumption, still offers a way for materialists to fulfill their desire to get new items, Helm said.

Study participants who reported having fewer materialistic values were much more likely to engage in reduced consumption. Consuming less was, in turn, linked to higher personal well-being and lower psychological suffering. Green buying—which may have some positive environmental effects, although to a smaller degree than reduced consumption—was not found to improve consumer well-being, Helm said.

The take-home message for consumers: "The key is to reduce consumption and not just buy green stuff. Having less and buying less can actually make us more satisfied and happier," Helm said. "If you have a lot of stuff, you have a lot on your mind," she said. "For example, it requires maintenance and there's a lot of burdens of ownership, and if you relieve yourself of that burden of ownership, most people report feeling a lot better and freer."

Helm and her colleagues additionally looked at how materialism affects millennial consumers' proactive financial behaviors, such as budgeting and saving. Examining financial behaviors alongside pro-environmental behaviors provides a picture of how young adults proactively deal with resource limitations in two contexts: environmental and financial, Helm said.

As expected, Helm and her colleagues found that those who reported having more materialistic values engaged in fewer proactive financial behaviors than their less materialistic counterparts (对应的人). The researchers also found that, consistent with previous studies, proactive financial behaviors were associated with better personal well-being, life satisfaction and financial satisfaction, as well as lower psychological suffering.

Understanding how materialistic values impact consumer behaviors, and how those behaviors in turn affect personal and environmental well-being, is important, Helm said. However, she acknowledges that for many consumers, shifting behaviors to be more financially proactive and consume less will be challenging.