Kalau Terlalu banyak nonton TV bisa merusak otak anak!
Bekasi, Saco-Indonesia.com - Selama ini kebiasaan menonton televisi dikaitkan dengan banyak penyakit, mulai dari obesitas hingga penyakit mata.
Bekasi, Saco-Indonesia.com - Selama ini kebiasaan menonton televisi dikaitkan dengan banyak penyakit, mulai dari obesitas hingga penyakit mata. Namun baru-baru ini peneliti juga mengungkap bahwa terlalu sering menonton televisi juga bisa merusak otak anak-anak. Peneliti menemukan bahwa menonton televisi bisa mengubah struktur otak anak dan secara perlahan merusaknya.
Lebih sering anak menonton televisi dan dalam waktu yang lama, maka lebih banyak pula perubahan struktur yang terjadi pada otak mereka. Hasil ini ditemukan setelah peneliti Jepang mengamati 276 anak berusia lima sampai 18 tahun yang menghabiskan hingga empat jam sehari di depan televisi. Anak-anak tersebut rata-rata menghabiskan waktu dua jam setiap hari.
Scan MRI pada otak menunjukkan bahwa anak yang menghabiskan lebih banyak waktu menonton televisi memiliki bagian abu-abu di otak bagian frontopolar cortex mereka. Bertambahnya bagian abu-abu berkaitan dengan menurunnya kemampuan verbal anak dan tingkat kecerdasan mereka, ungkap peneliti dari Tohoku University di Sendai, seperti dilansir oleh Daily Mail (10/01).
Peneliti menjelaskan bahwa sebelumnya efek menonton televisi pada otak anak-anak belum pernah diteliti. Mereka menekankan bahwa menonton televisi berkaitan dengan perkembangan saraf pengetahuan pada otak anak. Orang tua sebaiknya mengawasi jumlah waktu yang dihabiskan anak mereka di depan televisi.
Hasil penelitian yang dipublikasikan dalam jurnal Cerebral Cortex ini menekankan kaitan antara menonton televisi dengan perubahan struktur pada otak anak. Sayangnya mereka tak melakukan penelitian terhadap efek kegiatan lain pada otak, seperti membaca buku, berolahraga, atau bersosialisasi dengan teman.
Editor : Maulana Lee
SEBUAH HELI JATUH DI BRASTAGI
saco-indonesia.com, Helikopter milik Rumah Sakit Efarina Etaham, Kabanjahe, Kabupaten Tanah Karo, Sumatera Utara jatuh saat akan
saco-indonesia.com, Helikopter milik Rumah Sakit Efarina Etaham, Kabanjahe, Kabupaten Tanah Karo, Sumatera Utara jatuh saat akan lepas landas. Akibat dari kejadian tersebut seorang teknisi meninggal dunia.
"Korban meninggal dunia satu orang, teknisi atas nama Arif Setiawan," ujar Komandan Kodim Tanah Karo, Letkol Prince Meyer Putong Senin (30/12).
Menurut Putong, heli tersebut juga mengangkut lima orang. Selain teknisi, pilot dan tiga penumpang lainnya juga mengalami luka.
"Satu meninggal, tiga kritis dan satu aman. Dirawat di Rumah Sakit Efarina semua," terangnya.
Belum dapat diketahui penyebab pesawat yang akan lepas landas itu jatuh. Namun akibat dari peristiwa nahas ini, Jalan Jamin Ginting sempat ditutup untuk dapat evakuasi korban. Hal ini juga lantaran pesawat jatuh tepat di pinggir jalan.
"Sekarang sudah dibuka kembali. Lalu lintas sedang diatur," tutup Putong.
Editor : Dian Sukmawati
Negative View of U.S. Race Relations Grows, Poll Finds
Public perceptions of race relations in America have grown substantially more negative in the aftermath of the death of a young black man who was injured while in police custody in Baltimore and the subsequent unrest, far eclipsing the sentiment recorded in the wake of turmoil in Ferguson, Mo., last summer.
The poll findings highlight the challenges for local leaders and police officials in trying to maintain order while sustaining faith in the criminal justice system in a racially polarized nation.
Sixty-one percent of Americans now say race relations in this country are generally bad. That figure is up sharply from 44 percent after the fatal police shooting of Michael Brown and the unrest that followed in Ferguson in August, and 43 percent in December. In a CBS News poll just two months ago, 38 percent said race relations were generally bad. Current views are by far the worst of Barack Obama’s presidency.
The negative sentiment is echoed by broad majorities of blacks and whites alike, a stark change from earlier this year, when 58 percent of blacks thought race relations were bad, but just 35 percent of whites agreed. In August, 48 percent of blacks and 41 percent of whites said they felt that way.
Looking ahead, 44 percent of Americans think race relations are worsening, up from 36 percent in December. Forty-one percent of blacks and 46 percent of whites think so. Pessimism among whites has increased 10 points since December.
The poll finds that profound racial divisions in views of how the police use deadly force remain. Blacks are more than twice as likely to say police in most communities are more apt to use deadly force against a black person — 79 percent of blacks say so compared with 37 percent of whites. A slim majority of whites say race is not a factor in a police officer’s decision to use deadly force.
Overall, 44 percent of Americans say deadly force is more likely to be used against a black person, up from 37 percent in August and 40 percent in December.
Blacks also remain far more likely than whites to say they feel mostly anxious about the police in their community. Forty-two percent say so, while 51 percent feel mostly safe. Among whites, 8 in 10 feel mostly safe.
One proposal to address the matter — having on-duty police officers wear body cameras — receives overwhelming support. More than 9 in 10 whites and blacks alike favor it.
Asked specifically about the situation in Baltimore, most Americans expressed at least some confidence that the investigation by local authorities would be conducted fairly. But while nearly two-thirds of whites think so, fewer than half of blacks agree. Still, more blacks are confident now than were in August regarding the investigation in Ferguson. On Friday, six members of the police force involved in the arrest of Mr. Gray were charged with serious offenses, including manslaughter. The poll was conducted Thursday through Sunday; results from before charges were announced are similar to those from after.
Reaction to the recent turmoil in Baltimore, however, is similar among blacks and whites. Most Americans, 61 percent, say the unrest after Mr. Gray’s death was not justified. That includes 64 percent of whites and 57 percent of blacks.
The nationwide poll was conducted from April 30 to May 3 on landlines and cellphones with 1,027 adults, including 793 whites and 128 blacks. The margin of sampling error is plus or minus three percentage points for all adults, four percentage points for whites and nine percentage points for blacks. See the full poll here.
Dave Goldberg Was Lifelong Women’s Advocate
Even as a high school student, Dave Goldberg was urging female classmates to speak up. As a young dot-com executive, he had one girlfriend after another, but fell hard for a driven friend named Sheryl Sandberg, pining after her for years. After they wed, Mr. Goldberg pushed her to negotiate hard for high compensation and arranged his schedule so that he could be home with their children when she was traveling for work.
Mr. Goldberg, who died unexpectedly on Friday, was a genial, 47-year-old Silicon Valley entrepreneur who built his latest company, SurveyMonkey, from a modest enterprise to one recently valued by investors at $2 billion. But he was also perhaps the signature male feminist of his era: the first major chief executive in memory to spur his wife to become as successful in business as he was, and an essential figure in “Lean In,” Ms. Sandberg’s blockbuster guide to female achievement.
Over the weekend, even strangers were shocked at his death, both because of his relatively young age and because they knew of him as the living, breathing, car-pooling center of a new philosophy of two-career marriage.
“They were very much the role models for what this next generation wants to grapple with,” said Debora L. Spar, the president of Barnard College. In a 2011 commencement speech there, Ms. Sandberg told the graduates that whom they married would be their most important career decision.
In the play “The Heidi Chronicles,” revived on Broadway this spring, a male character who is the founder of a media company says that “I don’t want to come home to an A-plus,” explaining that his ambitions require him to marry an unthreatening helpmeet. Mr. Goldberg grew up to hold the opposite view, starting with his upbringing in progressive Minneapolis circles where “there was woman power in every aspect of our lives,” Jeffrey Dachis, a childhood friend, said in an interview.
The Goldberg parents read “The Feminine Mystique” together — in fact, Mr. Goldberg’s father introduced it to his wife, according to Ms. Sandberg’s book. In 1976, Paula Goldberg helped found a nonprofit to aid children with disabilities. Her husband, Mel, a law professor who taught at night, made the family breakfast at home.
Later, when Dave Goldberg was in high school and his prom date, Jill Chessen, stayed silent in a politics class, he chastised her afterward. He said, “You need to speak up,” Ms. Chessen recalled in an interview. “They need to hear your voice.”
Years later, when Karin Gilford, an early employee at Launch Media, Mr. Goldberg’s digital music company, became a mother, he knew exactly what to do. He kept giving her challenging assignments, she recalled, but also let her work from home one day a week. After Yahoo acquired Launch, Mr. Goldberg became known for distributing roses to all the women in the office on Valentine’s Day.
Ms. Sandberg, who often describes herself as bossy-in-a-good-way, enchanted him when they became friendly in the mid-1990s. He “was smitten with her,” Ms. Chessen remembered. Ms. Sandberg was dating someone else, but Mr. Goldberg still hung around, even helping her and her then-boyfriend move, recalled Bob Roback, a friend and co-founder of Launch. When they finally married in 2004, friends remember thinking how similar the two were, and that the qualities that might have made Ms. Sandberg intimidating to some men drew Mr. Goldberg to her even more.
Over the next decade, Mr. Goldberg and Ms. Sandberg pioneered new ways of capturing information online, had a son and then a daughter, became immensely wealthy, and hashed out their who-does-what-in-this-marriage issues. Mr. Goldberg’s commute from the Bay Area to Los Angeles became a strain, so he relocated, later joking that he “lost the coin flip” of where they would live. He paid the bills, she planned the birthday parties, and both often left their offices at 5:30 so they could eat dinner with their children before resuming work afterward.
Friends in Silicon Valley say they were careful to conduct their careers separately, politely refusing when outsiders would ask one about the other’s work: Ms. Sandberg’s role building Facebook into an information and advertising powerhouse, and Mr. Goldberg at SurveyMonkey, which made polling faster and cheaper. But privately, their work was intertwined. He often began statements to his team with the phrase “Well, Sheryl said” sharing her business advice. He counseled her, too, starting with her salary negotiations with Mark Zuckerberg.
“I wanted Mark to really feel he stretched to get Sheryl, because she was worth it,” Mr. Goldberg explained in a 2013 “60 Minutes” interview, his Minnesota accent and his smile intact as he offered a rare peek of the intersection of marriage and money at the top of corporate life.
While his wife grew increasingly outspoken about women’s advancement, Mr. Goldberg quietly advised the men in the office on family and partnership matters, an associate said. Six out of 16 members of SurveyMonkey’s management team are female, an almost unheard-of ratio among Silicon Valley “unicorns,” or companies valued at over $1 billion.
When Mellody Hobson, a friend and finance executive, wrote a chapter of “Lean In” about women of color for the college edition of the book, Mr. Goldberg gave her feedback on the draft, a clue to his deep involvement. He joked with Ms. Hobson that she was too long-winded, like Ms. Sandberg, but aside from that, he said he loved the chapter, she said in an interview.
By then, Mr. Goldberg was a figure of fascination who inspired a “where can I get one of those?” reaction among many of the women who had read the best seller “Lean In.” Some lamented that Ms. Sandberg’s advice hinged too much on marrying a Dave Goldberg, who was humble enough to plan around his wife, attentive enough to worry about which shoes his young daughter would wear, and rich enough to help pay for the help that made the family’s balancing act manageable.
Now that he is gone, and Ms. Sandberg goes from being half of a celebrated partnership to perhaps the business world’s most prominent single mother, the pages of “Lean In” carry a new sting of loss.
“We are never at 50-50 at any given moment — perfect equality is hard to define or sustain — but we allow the pendulum to swing back and forth between us,” she wrote in 2013, adding that they were looking forward to raising teenagers together.
“Fortunately, I have Dave to figure it out with me,” she wrote.