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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
FUNGSI DAN MANFAAT FUEL FILTER
Fungsi Dan Manfaat Fuel Filter
Agar dapat menghasilkan tenaga yang prima, mobil juga perlu suppl
Fungsi Dan Manfaat Fuel Filter
Agar dapat menghasilkan tenaga yang prima, mobil juga perlu supply bahan bakar yang sangat baik dan ok tentunya. Baik dari segi kuantitas maupun kualitasnya. Hal yang harus kita perhatikan bahwa tidak semua bahan bakar itu bersih dari kotoran. Kotoran dan air pada bahan bakar akan bisa merusak komponen-komponen sistem bahan bakar, korosi misalnya. Untuk itulah pada sistem bahan bakar telah terdapat komponen yang bernama `saringan bahan bakar` (fuel filter).
Fuel filter merupakan komponen yang harus selalu dibersihkan secara berkala. Biasanya setiap kelipatan 5000 km. Dan, lakukan penggantian fuel filter setiap kelipatan 10.000 km.Penggantian perlu dilakukan rutin mengingat bahan dasar fuel filter adalah kertas. Di kertas inilah juga terdapat pori-pori untuk dapat menyaring bahan bakar. Lama kelamaan pori-pori tersebut kian rapat sehingga bahan bakar sama sekali sulit untuk menembusnya. Dan solusinya harus diganti dengan yang baru.
Bila tidak, mungkin Anda akan terjebak pada kasus yang beberapa kali telah dialami oleh para pengendara mobil. Sepele, tapi bila lengah bisa dapat mengganggu perjalanan Anda. Yaitu, mesin seperti kurang tenaga, terasa lemah meskipun pedal gas diinjak sedalam-dalamnya. Bila gejala awal ini terus dibiarkan tanpa penanganan segera, kejadian berikutnya bisa lebih parah lagi: mesin tersendat-sendat, dan parahnya hal ini akan dapat membuat mobil anda menjadi mogok.
hal ini telah disebabkan, karena fuel filter yang kotor sehingga dapat menghambat aliran bahan bakar ke mesin. Bahkan mungkin bahan bakar tidak bisa mengalir karena pori-pori di fuel filter sudah tertutup sama sekali. Dan ini juga akan sangat bebahaya sekali.
Memeriksa dan mengganti fuel filter akan jauh lebih ringan ketimbang memperbaiki kerusakan yang ditimbulkan bila fuel filter tidak bekerja dengan baik. Sebagai saringan, peran fuel filter bagi kinerja mesin sangat besar. Komponen ini dapat menghentikan kotoran dan air yang terkandung dalam bahan bakar.
beberapa hal yang akan muncul apa bila terjadi kesusakan pada fuel filter yaotu:
1. Dapat menyebabkan pembakaran jadi tidak sempurna. Karena telah mengandung banyak air misalnya. Efek berikutnya adalah tenaga kurang maksimal sementara konsumsi bahan bakar menjadi boros. Juga, emisi gas buangnya akan tidak ramah lingkungan.
2. Akibat dari adanya kandungan air atau kotoran yang ada di bahan bakar juga bisa mengakibatkan kerusakan (keausan) pada komponen-komponen yang dilaluinya. Misalnya, karat pada dinding-dinding cylinder block. Bila keausan ini terjadi, akan memicu kebocoran pada ruang bakar.
3. Dan yang terakhir, yaitu tenaga mesin terasa lemah. Bisa juga membuat oli cepat kotor. Dan bila dibiarkan terus berlanjut, pengaruhnya akan terasa ke mesin. Yang paling sering adalah suara mesin terdengar kasar. Dan lama kelamaan akan membuat mobil menjadi mogok.
Editor : Dian Sukmawati
Native American Actors Work to Overcome a Long-Documented Bias
Late in April, after Native American actors walked off in disgust from the set of Adam Sandler’s latest film, a western sendup that its distributor, Netflix, has defended as being equally offensive to all, a glow of pride spread through several Native American communities.
Tantoo Cardinal, a Canadian indigenous actress who played Black Shawl in “Dances With Wolves,” recalled thinking to herself, “It’s come.” Larry Sellers, who starred as Cloud Dancing in the 1990s television show “Dr. Quinn, Medicine Woman,” thought, “It’s about time.” Jesse Wente, who is Ojibwe and directs film programming at the TIFF Bell Lightbox in Toronto, found himself encouraged and surprised. There are so few film roles for indigenous actors, he said, that walking off the set of a major production showed real mettle.
But what didn’t surprise Mr. Wente was the content of the script. According to the actors who walked off the set, the film, titled “The Ridiculous Six,” included a Native American woman who passes out and is revived after white men douse her with alcohol, and another woman squatting to urinate while lighting a peace pipe. “There’s enough history at this point to have set some expectations around these sort of Hollywood depictions,” Mr. Wente said.
The walkout prompted a rhetorical “What do you expect from an Adam Sandler film?,” and a Netflix spokesman said that in the movie, blacks, Mexicans and whites were lampooned as well. But Native American actors and critics said a broader issue was at stake. While mainstream portrayals of native peoples have, Mr. Wente said, become “incrementally better” over the decades, he and others say, they remain far from accurate and reflect a lack of opportunities for Native American performers. What’s more, as Native Americans hunger for representation on screen, critics say the absence of three-dimensional portrayals has very real off-screen consequences.
“Our people are still healing from historical trauma,” said Loren Anthony, one of the actors who walked out. “Our youth are still trying to figure out who they are, where they fit in this society. Kids are killing themselves. They’re not proud of who they are.” They also don’t, he added, see themselves on prime time television or the big screen. Netflix noted while about five people walked off the “The Ridiculous Six” set, 100 or so Native American actors and extras stayed.
But in interviews, nearly a dozen Native American actors and film industry experts said that Mr. Sandler’s humor perpetuated decades-old negative stereotypes. Mr. Anthony said such depictions helped feed the despondency many Native Americans feel, with deadly results: Native Americans have the highest suicide rate out of all the country’s ethnicities.
The on-screen problem is twofold, Mr. Anthony and others said: There’s a paucity of roles for Native Americans — according to the Screen Actors Guild in 2008 they accounted for 0.3 percent of all on-screen parts (those figures have yet to be updated), compared to about 2 percent of the general population — and Native American actors are often perceived in a narrow way.
In his Peabody Award-winning documentary “Reel Injun,” the Cree filmmaker Neil Diamond explored Hollywood depictions of Native Americans over the years, and found they fell into a few stereotypical categories: the Noble Savage, the Drunk Indian, the Mystic, the Indian Princess, the backward tribal people futilely fighting John Wayne and manifest destiny. While the 1990 film “Dances With Wolves” won praise for depicting Native Americans as fully fleshed out human beings, not all indigenous people embraced it. It was still told, critics said, from the colonialists’ point of view. In an interview, John Trudell, a Santee Sioux writer, actor (“Thunderheart”) and the former chairman of the American Indian Movement, described the film as “a story of two white people.”
“God bless ‘Dances with Wolves,’ ” Michael Horse, who played Deputy Hawk in “Twin Peaks,” said sarcastically. “Even ‘Avatar.’ Someone’s got to come save the tribal people.”
Dan Spilo, a partner at Industry Entertainment who represents Adam Beach, one of today’s most prominent Native American actors, said while typecasting dogs many minorities, it is especially intractable when it comes to Native Americans. Casting directors, he said, rarely cast them as police officers, doctors or lawyers. “There’s the belief that the Native American character should be on reservations or riding a horse,” he said.
“We don’t see ourselves,” Mr. Horse said. “We’re still an antiquated culture to them, and to the rest of the world.”
Ms. Cardinal said she was once turned down for the role of the wife of a child-abusing cop because the filmmakers felt that casting her would somehow be “too political.”
Another sore point is the long run of white actors playing American Indians, among them Burt Lancaster, Rock Hudson, Audrey Hepburn and, more recently, Johnny Depp, whose depiction of Tonto in the 2013 film “Lone Ranger,” was viewed as racist by detractors. There are, of course, exceptions. The former A&E series “Longmire,” which, as it happens, will now be on Netflix, was roundly praised for its depiction of life on a Northern Cheyenne reservation, with Lou Diamond Phillips, who is of Cherokee descent, playing a Northern Cheyenne man.
Others also point to the success of Mr. Beach, who played a Mohawk detective in “Law & Order: Special Victims Unit” and landed a starring role in the forthcoming D C Comics picture “Suicide Squad.” Mr. Beach said he had come across insulting scripts backed by people who don’t see anything wrong with them.
“I’d rather starve than do something that is offensive to my ancestral roots,” Mr. Beach said. “But I think there will always be attempts to drawn on the weakness of native people’s struggles. The savage Indian will always be the savage Indian. The white man will always be smarter and more cunning. The cavalry will always win.”
The solution, Mr. Wente, Mr. Trudell and others said, lies in getting more stories written by and starring Native Americans. But Mr. Wente noted that while independent indigenous film has blossomed in the last two decades, mainstream depictions have yet to catch up. “You have to stop expecting for Hollywood to correct it, because there seems to be no ability or desire to correct it,” Mr. Wente said.
There have been calls to boycott Netflix but, writing for Indian Country Today Media Network, which first broke news of the walk off, the filmmaker Brian Young noted that the distributor also offered a number of films by or about Native Americans.
The furor around “The Ridiculous Six” may drive more people to see it. Then one of the questions that Mr. Trudell, echoing others, had about the film will be answered: “Who the hell laughs at this stuff?”
Baltimore Residents Away From Turmoil Consider Their Role
BALTIMORE — In the afternoons, the streets of Locust Point are clean and nearly silent. In front of the rowhouses, potted plants rest next to steps of brick or concrete. There is a shopping center nearby with restaurants, and a grocery store filled with fresh foods.
And the National Guard and the police are largely absent. So, too, residents say, are worries about what happened a few miles away on April 27 when, in a space of hours, parts of this city became riot zones.
“They’re not our reality,” Ashley Fowler, 30, said on Monday at the restaurant where she works. “They’re not what we’re living right now. We live in, not to be racist, white America.”
As Baltimore considers its way forward after the violent unrest brought by the death of Freddie Gray, a 25-year-old black man who died of injuries he suffered while in police custody, residents in its predominantly white neighborhoods acknowledge that they are sometimes struggling to understand what beyond Mr. Gray’s death spurred the turmoil here. For many, the poverty and troubled schools of gritty West Baltimore are distant troubles, glimpsed only when they pass through the area on their way somewhere else.
And so neighborhoods of Baltimore are facing altogether different reckonings after Mr. Gray’s death. In mostly black communities like Sandtown-Winchester, where some of the most destructive rioting played out last week, residents are hoping businesses will reopen and that the police will change their strategies. But in mostly white areas like Canton and Locust Point, some residents wonder what role, if any, they should play in reimagining stretches of Baltimore where they do not live.
“Most of the people are kind of at a loss as to what they’re supposed to do,” said Dr. Richard Lamb, a dentist who has practiced in the same Locust Point office for nearly 39 years. “I listen to the news reports. I listen to the clergymen. I listen to the facts of the rampant unemployment and the lack of opportunities in the area. Listen, I pay my taxes. Exactly what can I do?”
And in Canton, where the restaurants have clever names like Nacho Mama’s and Holy Crepe Bakery and Café, Sara Bahr said solutions seemed out of reach for a proudly liberal city.
“I can only imagine how frustrated they must be,” said Ms. Bahr, 36, a nurse who was out with her 3-year-old daughter, Sally. “I just wish I knew how to solve poverty. I don’t know what to do to make it better.”
The day of unrest and the overwhelmingly peaceful demonstrations that followed led to hundreds of arrests, often for violations of the curfew imposed on the city for five consecutive nights while National Guard soldiers patrolled the streets. Although there were isolated instances of trouble in Canton, the neighborhood association said on its website, many parts of southeast Baltimore were physically untouched by the tumult.
Tensions in the city bubbled anew on Monday after reports that the police had wounded a black man in Northwest Baltimore. The authorities denied those reports and sent officers to talk with the crowds that gathered while other officers clutching shields blocked traffic at Pennsylvania and West North Avenues.
Lt. Col. Melvin Russell, a community police officer, said officers had stopped a man suspected of carrying a handgun and that “one of those rounds was spent.”
Colonel Russell said officers had not opened fire, “so we couldn’t have shot him.”
The colonel said the man had not been injured but was taken to a hospital as a precaution. Nearby, many people stood in disbelief, despite the efforts by the authorities to quash reports they described as “unfounded.”
Monday’s episode was a brief moment in a larger drama that has yielded anger and confusion. Although many people said they were familiar with accounts of the police harassing or intimidating residents, many in Canton and Locust Point said they had never experienced it themselves. When they watched the unrest, which many protesters said was fueled by feelings that they lived only on Baltimore’s margins, even those like Ms. Bahr who were pained by what they saw said they could scarcely comprehend the emotions associated with it.
But others, like Lambi Vasilakopoulos, who runs a casual restaurant in Canton, said they were incensed by what unfolded last week.
“What happened wasn’t called for. Protests are one thing; looting is another thing,” he said, adding, “We’re very frustrated because we’re the ones who are going to pay for this.”
There were pockets of optimism, though, that Baltimore would enter a period of reconciliation.
“I’m just hoping for peace,” Natalie Boies, 53, said in front of the Locust Point home where she has lived for 50 years. “Learn to love each other; be patient with each other; find justice; and care.”
A skeptical Mr. Vasilakopoulos predicted tensions would worsen.
“It cannot be fixed,” he said. “It’s going to get worse. Why? Because people don’t obey the laws. They don’t want to obey them.”
But there were few fears that the violence that plagued West Baltimore last week would play out on these relaxed streets. The authorities, Ms. Fowler said, would make sure of that.
“They kept us safe here,” she said. “I didn’t feel uncomfortable when I was in my house three blocks away from here. I knew I was going to be O.K. because I knew they weren’t going to let anyone come and loot our properties or our businesses or burn our cars.”