Online activity can be riddled with cyberbullying(网络霸凌). To find out which app is the best to keep your kids safe online, we tested four apps over five weeks.
●Mobicip Premium
$8 per month (billed annually at $96) for 20 managed devices at Mobicip
Mobicip Premium's social media and screen time monitoring were all strong. We found its app blocking, website content monitoring, and location tracking capabilities to be powerful as well.
● Net Nanny
$90 per year (billed annually) for 20 managed devices at Net Nanny
The user interface(界面) of this app is family-friendly and visually engaging, featuring cartoons of parents and casual language. The web filtering, screen time allocation(分配), and app management functions are all capable.
●OurPact Premium+
$100 per year (billed annually) for 20 managed devices at OurPact
This app requires that we pair our child's device to our computer with a cable and download the OurPact Jr. app. The Screen Time capability is personalized to fit our child's schedule.
●Qustodio Premium Small
$55 per year (billed annually) for 20 managed devices at Qustodio
The thoughtfully designed web interface makes Qustodio Premium Basic easy to operate. Its web filtering and game blocking features were powerful. This app is available for Android, Chromebook, iOS, Kindle, macOS and Windows, though not all features are supported across all platforms.
French artist and photographer Augustin Lignier has taught a pair of rats to take selfies(自拍). The creatures' photographic training was part of an art project commenting on social media use in the modern world.
There are 56 known species of rats, which live on every continent except Antarctica. They are intelligent and adaptable, and can learn to complete many different tasks. Partly for these reasons, rats are often used in scientific and medical research.
For his project, Lignier took inspiration from B. F. Skinner, a famous psychologist (someone who studies the mind and behavior). Skinner was known for conducting behavior research with animals such as rats and pigeons. He developed a device called an operant(可操作的) conditioning chamber(also called a Skinner box). This box features a bar or lever that can provide a reward, such as food, to animals when they press it.
Lignier bought two rats from a pet store and named them Augustin and Arthur, after himself and his brother. He placed them in a tall, transparent(透明的) tower similar to a Skinner box with a camera attached to it. When a rat pressed a button inside the tower, the camera took a picture of the rat and the animal received a bit of sugar as a reward. Each photo was immediately displayed on a screen in front of the rats, "but honestly I don't think they understood it," Lignier told The New York Times.
Then Lignier changed the device setup so it would not always release sugar on command, instead providing the reward only occasionally. Still, the rats kept pressing the button, and the camera kept snapping pictures. Sometimes the rats received sugar but ignored it to keep pushing the button. Lignier said this was because the excitement of pressing the button had become its own sort of reward. "Every time they push the button, they have pleasure inside their brain," he told CBC Radio.
Lignier said he designed the project to represent the way social media platforms encourage people to keep posting by providing unpredictable rewards such as comments, likes, and attention. As for Augustin and Arthur, Lignier said, "They're really like performers, you know?"
The eyes are more than a window to the soul—they're also a reflection of a person's cognitive(认知的) health. Research has been exploring how the eyes may help in diagnosing(诊断) Alzheimer's disease before symptoms(症状) begin.
"Alzheimer's disease begins in the brain decades before the first symptoms of memory loss," said Dr. Richard Isaacson, an Alzheimer's preventive neurologist at the Institute for Neurodegenerative Diseases. If doctors are able to identify the disease in its earliest stages, people could then make healthy lifestyle choices and control their "risk factors, like high blood pressure, high cholesterol and diabetes," Isaacson said.
Then how early can we see signs of cognitive decline? To find it out, a recent study examined donated tissue from the retina(视网膜) and brains of 86 people with different degrees of mental decline. "Our study is the first to provide in-depth analyses of the protein profiles and the molecular, cellular, and structural effects of Alzheimer's disease in the human retina and how they correspond with changes in the brain and cognitive function," said senior author Maya Koronyo-Hamaoui, a professor of neurosurgery and biomedical sciences at Cedars-Sinai in Los Angeles.
Researchers in the study collected retinal and brain tissue samples over 14 years from 86 human donors with Alzheimer's disease and mild cognitive damage—the largest group of retinal samples ever studied, according to the authors. Researchers then compared samples from donors with normal cognitive function to those with mild cognitive damage and those with later-stage Alzheimer's disease.
The study, published in February in the journal ActaNeuropathologica, found significant increases in beta-amyloid, a key marker of Alzheimer's disease, in people with both Alzheimer's and early cognitive decline.
"These findings may eventually lead to the development of imaging techniques that allow us to diagnose Alzheimer's disease earlier and more accurately," Isaacson said, "and monitor its progression by looking through the eyes."
If you happen to be in Hollywood and see a car go by with no driver at the wheel, don't be alarmed. After more than a year of testing, around 50 driverless robotaxis are debuting(首次亮相) to the public across Los Angeles on Thursday.
The autonomous vehicles are run by Waymo, which is owned by Google's parent company Alphabet. Waymo started giving driverless rides to passengers in San Francisco last year and also operates them in Phoenix. In the coming weeks, Waymo will change to a paid service.
The Southern California debut comes as controversy and mistakes have troubled self-driving cars in San Francisco. Both Waymo and its competitor Cruise, which is owned by GM, have been blamed for running red lights, blocking public buses and getting in the way of emergency responders.
Cruise was involved in an incident that left a pedestrian(行人) severely injured in October—causing the company to stop operations and lose its operating permit in the state. It hasn't necessarily been a smooth ride for Waymo in Los Angeles. In the run-up to its debut in the city, there have been complaints by Los Angeles's mayor Karen Bass and protests by local residents. "Autonomous vehicles like the ones that Waymo wants to launch in our communities, have been causing chaos wherever they go." Yvonne Wheeler, president of the Los Angeles County Federation of Labor said. "It's clear that this technology is not ready to be introduced into our roads and our cities."
However, both Cruise and Waymo say their vehicles are safer than human drivers and that they've had relatively few incidents. "Once an unimaginable future, autonomous driving is now a real-world way of getting around for tens of thousands of people each week," said Tekedra Mawakana, co-CEO of Waymo. He also mentioned that Waymo is already setting its sights on its next robotaxi debut. It says it plans to start offering rides in Austin, Texas, later this year.
Have you been feeling stuck lately? If so, it may be because you haven't found your life's purpose. Your life's purpose can help guide you toward the person you want to be. Check out these easy and efficient ways to find your purpose in life and be the best version of yourself.
Interviewing yourself can help you identify what matters to you. Take a few moments to think about questions such as "When have you been happiest in your life?" "What has made you truly proud of yourself?" to learn more about yourself.
Explore your passions. More often than not, your passions are activities that you often lose track of time while doing. Perhaps you like singing, working out, writing, or performing well at work. Diving head first into hobbies you enjoy can help you find meaning in life.
Think about your future. Imagining yourself 30 years from now can help you determine your goals. Backward planning is the idea of thinking ahead to plan for the present. Take a moment to imagine yourself at 50, 70, or 80 years old. What's your job? Where are you living?
Read more. Reading is a great way to discover more about yourself. A fiction book can bring you to fantastic worlds and inspire your imagination, whereas a nonfiction book can open your eyes to new perspectives. You may resonate with(产生共鸣) a character's drive and find your own purpose within the pages.
It's never too late to start looking for a purpose. Identify what matters most to you, and the best lessons for self-discovery are in the journey rather than the destination.
A. Make time for self-care.
B. Ask yourself questions.
C. So, grab a book and dive in.
D. Think about what you enjoy spending the most time doing.
E. It can help you explore your curiosities and learn new things.
F. Trying new things can help you understand what brings you joy.
G. Think about what you can do to reach that point right now.
I had a job I loved as a case manager and my duties involved arranging home services for the low-income elderly. Yet, as with most social-service jobs, it 1 paid a living wage.
Although I managed to pay the electric bill each month, it was the 2 costs that kept me up at night. If something 3 in our home, it was probably going to stay broken. What if we needed a new roof? What if the car needed repairs? I was fortunate that I didn't need any government assistance, 4 I knew one catastrophe(灾难) would financially destroy me.
I thought I was doing a good job keeping my 5 from my children, but I wasn't. Children are very 6 to their parents' moods, and they are often listening when we're not aware. A neighbor had been pressuring me to 7 the cost of a new fence, and I was talking about it with my sister on the phone, wondering how I could 8 to cover the cost. After I got 9 the phone, my six-year-old daughter approached me and said, "Mom, please don't worry. We may not have everything we want, but we have everything we 10 ."
That statement, made by an innocent but very wise child, forever changed my 11 I'm so 12 to my little girl who was smart enough to 13 me that we often confuse wants with needs, I would focus on being grateful for 14 over our heads and food on our table. We did, 15 , have everything we need!
Guiyang, capital city of Southwest China's Guizhou province, has a rich history and culture. It has undergone continuous betterment and now (attract) a steady stream of visitors. Breathtaking (landscape), tea culture, and energetic ethnic(民族的) minorities are the three main features that define Guiyang and wider Guizhou, and visitors can enjoy them all in Qingzhen city, west of Guiyang.
AJ Donnelly, a British vlogger, visited Qingzhen to explore its characteristic customs and (invite) scenery.
In this video trip, AJ showed us around the Hongfeng Lake, which (surround) by beautiful red leaves in autumn, and China's newest social media hit, the Yangpi Cave Waterfall, which is famous its breathtaking Karst landforms.
In the Ludishao Tea Expo Garden, AJ buried (he) in tea aroma(芳香) and tried hand-picking his own ten.
AJ also visited the Maige Miao and Bouyei ethnic township, mainly live the "Four Seals Miao", branch of the Miao people. Their characteristic clothing made a surprise (appear) in Milan Fashion Week and served the world a visual feast.
Charming Qingzhen is just a glimpse (一瞥) of "Cool Guiyang", and there are more splendid views the city has (choose) from. Come and see for yourselves, will you?
1.活动目的；
2.活动要求。
注意：
1.写作词数应为80左右；
2.请按如下格式在答题纸的相应位置作答。
My dad was more than a father to me; he was my friend and one of the most amazing people in my life. So when he passed away suddenly from a stroke at the age of 51, my world fell apart. I was lost, along with my mother who had been with my father since age 16, two brothers, and everyone who knew him. We were thrown into a thick haze of anger, sadness, and shock.
I cried every night and tried to hold onto all my memories of him. I replayed every moment I could remember—jotting down thoughts, printing out old e-mails, reading old birthday cards—anything I could hang on to because I didn't want to forget. As I was going through all these old memories, I began to wonder about all the things I had missed.
My dad was a quiet man who was known for his listening skills, his patience and his smile. He was often the one listening instead of telling stories. I wanted to know what stories I had missed by losing him so soon. So I decided to compile(汇编) a memory book as a surprise Christmas gift for my mom and brothers.
I started my project in November, contacting everyone I knew who was close to my dad. I sent e-mails and letters asking for friends to send me their thoughts and memories of him. I asked them specifically to share funny stories about my dad and the stories that maybe no one had ever heard. I told them to respond no later than one week prior to Christmas.
注意：
1.续写词数应为150左右；
2.请按如下格式在答题卡的相应位置作答。
Before long, the responses started pouring in.
I gave it to my family as a gift on Christmas Day.
