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Kehatkan jantung tidak bisa disehatkan Suplemen minyak ikan
Saco-Indonesia.com - Selama ini minyak ikan diketahui mengandung asam lemak omega-3 yang baik untuk kesehatan jantung dan bisa menangkal penyakit jantung.
Saco-Indonesia.com - Selama ini minyak ikan diketahui mengandung asam lemak omega-3 yang baik untuk kesehatan jantung dan bisa menangkal penyakit jantung. Namun baru-baru ini penelitian mengungkap bahwa hal tersebut tak berlaku untuk suplemen minyak ikan. Orang yang mengonsumsi suplemen minyak ikan kemungkinan tak akan mendapat manfaat kesehatan yang mereka inginkan.
Hasil ini ditemukan peneliti setelah mengamati 17 penelitian yang dikombinasikan dengan penelitian terbaru dalam skala besar. Mereka tak menemukan adanya efek signifikan dari suplemen minyak ikan yang bisa menurunkan risiko penyakit jantung koroner.
Penelitian ini tak menunjukkan adanya penurunan risiko seseorang terkena serangan jantung, stroke, dan gagal jantung pada 1.100 orang yang mengonsumsi suplemen minyak ikan dan omega-3 secara teratur, seperti dilansir oleh Health Day News (17/03).
"Melihat pada 17 penelitian ini, kami tak menemukan adanya penurunan risiko penyakit jantung dan efek signifikan yang bisa diberikan oleh suplemen omega-3 untuk kesehatan," ungkap Dr Rajiv Chowdhury, ketua peneliti.
Meski begitu, peneliti tetap menekankan pentingnya omega-3 bagi kesehatan tubuh dan jantung. Namun harus diperhatikan bahwa omega-3 yang baik untuk kesehatan adalah yang didapatkan melalui makanan alami dan bernutrisi seperti ikan tuna atau salmon, bukan melalui suplemen.
Penelitian ini menekankan pentingnya orang mengonsumsi ikan untuk meningkatkan kesehatan jantung dan fungsi otak. Selain itu, masyarakat sebaiknya lebih berhati-hati sebelum mengonsumsi suplemen minyak ikan secara teratur. Jangan sampai membuang uang tanpa mendapatkan manfaat kesehatan yang diinginkan.
Editor : Maulana Lee
Sumber : merdeka.com
WARGA KAMPUNG PULO PILIH BERTAHAN DI POSKO
saco-indonesia.com, Ketinggian air di wilayah Kampung Pulo, Jatinegara, Jakarta Timur, telah berangsur-angsur surut. Namun, ribu
saco-indonesia.com, Ketinggian air di wilayah Kampung Pulo, Jatinegara, Jakarta Timur, telah berangsur-angsur surut. Namun, ribuan warga telah memilih tetap tinggal di posko pengungsian yang telah disediakan di beberapa titik.
Nurdin yang berusia (52) tahun, warga RT 4 RW 3, telah mengatakan, air mulai surut sejak pukul 05.00 WIB tadi. Namun, air berwarna cokelat tersebut masih telah menggenangi rumahnya setinggi 1 meter.
"Alhamdulillah, sudah mulai surut. Mudah-mudahan, nanti malam udah kering kalo cuacanya cerah," kata Nurdin saat ditemui di tenda pengungsian, Kamis (23/1).
Nurdin juga berharap, banjir tidak lagi bertambah parah seperti yang telah terjadi pada Rabu (22/1) kemarin, sehingga tidak terjadi lagi banjir susulan yang sempat telah terjadi dua kali selama sepekan kemarin.
"Khawatir sih naik lagi, karena katanya kan hujan akan terus terjadi sampai bulan depan. Mudah-mudahan kagak naik, sudah capai soalnya. Bosan di pengungsian," jelasnya.
Warga lainnya, Gatot yang berusia (38) tahun juga mengatakan, banjir yang telah menimpa Jakarta pada tahun ini merupakan banjir terparah yang telah dialami olehnya.
"Banjir sekarang memang parah, kampung pulo biasanya banjir sehari langsung surut. Ini udah surut naik lagi, surut lagi, naik lagi. Kita sih pasrah ajalah," paparnya.
Sementara itu, Ketua RT 03/03 Kampung Melayu, Budi juga mengatakan, saat ini warga dan kelurahan masih akan terus memantau keadaan pintu air di Katulampa, Bogor untuk dapat mengantisipasi adanya banjir susulan.
"Sekarang posisinya siaga tiga. Kita juga masih lakukan pemantauan dan koordinasi. Laporan yang baru saya terima katulampa naik jadi 110 dari 80 cm. Kita siaga lagi," tandasnya.
Editor : Dian Sukmawati
How Some Men Fake an 80-Hour Workweek, and Why It Matters
Imagine an elite professional services firm with a high-performing, workaholic culture. Everyone is expected to turn on a dime to serve a client, travel at a moment’s notice, and be available pretty much every evening and weekend. It can make for a grueling work life, but at the highest levels of accounting, law, investment banking and consulting firms, it is just the way things are.
Except for one dirty little secret: Some of the people ostensibly turning in those 80- or 90-hour workweeks, particularly men, may just be faking it.
Many of them were, at least, at one elite consulting firm studied by Erin Reid, a professor at Boston University’s Questrom School of Business. It’s impossible to know if what she learned at that unidentified consulting firm applies across the world of work more broadly. But her research, published in the academic journal Organization Science, offers a way to understand how the professional world differs between men and women, and some of the ways a hard-charging culture that emphasizes long hours above all can make some companies worse off.
Ms. Reid interviewed more than 100 people in the American offices of a global consulting firm and had access to performance reviews and internal human resources documents. At the firm there was a strong culture around long hours and responding to clients promptly.
“When the client needs me to be somewhere, I just have to be there,” said one of the consultants Ms. Reid interviewed. “And if you can’t be there, it’s probably because you’ve got another client meeting at the same time. You know it’s tough to say I can’t be there because my son had a Cub Scout meeting.”
Some people fully embraced this culture and put in the long hours, and they tended to be top performers. Others openly pushed back against it, insisting upon lighter and more flexible work hours, or less travel; they were punished in their performance reviews.
The third group is most interesting. Some 31 percent of the men and 11 percent of the women whose records Ms. Reid examined managed to achieve the benefits of a more moderate work schedule without explicitly asking for it.
They made an effort to line up clients who were local, reducing the need for travel. When they skipped work to spend time with their children or spouse, they didn’t call attention to it. One team on which several members had small children agreed among themselves to cover for one another so that everyone could have more flexible hours.
A male junior manager described working to have repeat consulting engagements with a company near enough to his home that he could take care of it with day trips. “I try to head out by 5, get home at 5:30, have dinner, play with my daughter,” he said, adding that he generally kept weekend work down to two hours of catching up on email.
Despite the limited hours, he said: “I know what clients are expecting. So I deliver above that.” He received a high performance review and a promotion.
What is fascinating about the firm Ms. Reid studied is that these people, who in her terminology were “passing” as workaholics, received performance reviews that were as strong as their hyper-ambitious colleagues. For people who were good at faking it, there was no real damage done by their lighter workloads.
It calls to mind the episode of “Seinfeld” in which George Costanza leaves his car in the parking lot at Yankee Stadium, where he works, and gets a promotion because his boss sees the car and thinks he is getting to work earlier and staying later than anyone else. (The strategy goes awry for him, and is not recommended for any aspiring partners in a consulting firm.)
A second finding is that women, particularly those with young children, were much more likely to request greater flexibility through more formal means, such as returning from maternity leave with an explicitly reduced schedule. Men who requested a paternity leave seemed to be punished come review time, and so may have felt more need to take time to spend with their families through those unofficial methods.
The result of this is easy to see: Those specifically requesting a lighter workload, who were disproportionately women, suffered in their performance reviews; those who took a lighter workload more discreetly didn’t suffer. The maxim of “ask forgiveness, not permission” seemed to apply.
It would be dangerous to extrapolate too much from a study at one firm, but Ms. Reid said in an interview that since publishing a summary of her research in Harvard Business Review she has heard from people in a variety of industries describing the same dynamic.
High-octane professional service firms are that way for a reason, and no one would doubt that insane hours and lots of travel can be necessary if you’re a lawyer on the verge of a big trial, an accountant right before tax day or an investment banker advising on a huge merger.
But the fact that the consultants who quietly lightened their workload did just as well in their performance reviews as those who were truly working 80 or more hours a week suggests that in normal times, heavy workloads may be more about signaling devotion to a firm than really being more productive. The person working 80 hours isn’t necessarily serving clients any better than the person working 50.
In other words, maybe the real problem isn’t men faking greater devotion to their jobs. Maybe it’s that too many companies reward the wrong things, favoring the illusion of extraordinary effort over actual productivity.
Top News Chinas Intents Are Questioned as It Builds in Antarctica
HOBART, Tasmania — Few places seem out of reach for China’s leader, Xi Jinping, who has traveled from European capitals to obscure Pacific and Caribbean islands in pursuit of his nation’s strategic interests.
So perhaps it was not surprising when he turned up last fall in this city on the edge of the Southern Ocean to put down a long-distance marker in another faraway region, Antarctica, 2,000 miles south of this Australian port.
Standing on the deck of an icebreaker that ferries Chinese scientists from this last stop before the frozen continent, Mr. Xi pledged that China would continue to expand in one of the few places on earth that remain unexploited by humans.
He signed a five-year accord with the Australian government that allows Chinese vessels and, in the future, aircraft to resupply for fuel and food before heading south. That will help secure easier access to a region that is believed to have vast oil and mineral resources; huge quantities of high-protein sea life; and for times of possible future dire need, fresh water contained in icebergs.
It was not until 1985, about seven decades after Robert Scott and Roald Amundsen raced to the South Pole, that a team representing Beijing hoisted the Chinese flag over the nation’s first Antarctic research base, the Great Wall Station on King George Island.
But now China seems determined to catch up. As it has bolstered spending on Antarctic research, and as the early explorers, especially the United States and Australia, confront stagnant budgets, there is growing concern about its intentions.
China’s operations on the continent — it opened its fourth research station last year, chose a site for a fifth, and is investing in a second icebreaker and new ice-capable planes and helicopters — are already the fastest growing of the 52 signatories to the Antarctic Treaty. That gentlemen’s agreement reached in 1959 bans military activity on the continent and aims to preserve it as one of the world’s last wildernesses; a related pact prohibits mining.
But Mr. Xi’s visit was another sign that China is positioning itself to take advantage of the continent’s resource potential when the treaty expires in 2048 — or in the event that it is ripped up before, Chinese and Australian experts say.
“So far, our research is natural-science based, but we know there is more and more concern about resource security,” said Yang Huigen, director general of the Polar Research Institute of China, who accompanied Mr. Xi last November on his visit to Hobart and stood with him on the icebreaker, Xue Long, or Snow Dragon.
With that in mind, the polar institute recently opened a new division devoted to the study of resources, law, geopolitics and governance in Antarctica and the Arctic, Mr. Yang said.
Australia, a strategic ally of the United States that has strong economic relations with China, is watching China’s buildup in the Antarctic with a mix of gratitude — China’s presence offers support for Australia’s Antarctic science program, which is short of cash — and wariness.
“We should have no illusions about the deeper agenda — one that has not even been agreed to by Chinese scientists but is driven by Xi, and most likely his successors,” said Peter Jennings, executive director of the Australian Strategic Policy Institute and a former senior official in the Australian Department of Defense.
“This is part of a broader pattern of a mercantilist approach all around the world,” Mr. Jennings added. “A big driver of Chinese policy is to secure long-term energy supply and food supply.”
That approach was evident last month when a large Chinese agriculture enterprise announced an expansion of its fishing operations around Antarctica to catch more krill — small, protein-rich crustaceans that are abundant in Antarctic waters.
“The Antarctic is a treasure house for all human beings, and China should go there and share,” Liu Shenli, the chairman of the China National Agricultural Development Group, told China Daily, a state-owned newspaper. China would aim to fish up to two million tons of krill a year, he said, a substantial increase from what it currently harvests.
Because sovereignty over Antarctica is unclear, nations have sought to strengthen their claims over the ice-covered land by building research bases and naming geographic features. China’s fifth station will put it within reach of the six American facilities, and ahead of Australia’s three.
Chinese mappers have also given Chinese names to more than 300 sites, compared with the thousands of locations on the continent with English names.
In the unspoken competition for Antarctica’s future, scientific achievement can also translate into influence. Chinese scientists are driving to be the first to drill and recover an ice core containing tiny air bubbles that provide a record of climate change stretching as far back as 1.5 million years. It is an expensive and delicate effort at which others, including the European Union and Australia, have failed.
In a breakthrough a decade ago, European scientists extracted an ice core nearly two miles long that revealed 800,000 years of climate history. But finding an ice core going back further would allow scientists to examine a change in the earth’s climate cycles believed to have occurred 900,000 to 1.2 million years ago.
China is betting it has found the best location to drill, at an area called Dome A, or Dome Argus, the highest point on the East Antarctic Ice Sheet. Though it is considered one of the coldest places on the planet, with temperatures of 130 degrees below zero Fahrenheit, a Chinese expedition explored the area in 2005 and established a research station in 2009.
“The international community has drilled in lots of places, but no luck so far,” said Xiao Cunde, a member of the first party to reach the site and the deputy director of the Institute for Climate Change at the Chinese Academy of Meteorological Sciences. “We think at Dome A we will have a straight shot at the one-million-year ice core.”
Mr. Xiao said China had already begun drilling and hoped to find what scientists are looking for in four to five years.
To support its Antarctic aspirations, China is building a sophisticated $300 million icebreaker that is expected to be ready in a few years, said Xia Limin, deputy director of the Chinese Arctic and Antarctic Administration in Beijing. It has also bought a high-tech fixed-wing aircraft, outfitted in the United States, for taking sensitive scientific soundings from the ice.
China has chosen the site for its fifth research station at Inexpressible Island, named by a group of British explorers who were stranded at the desolate site in 1912 and survived the winter by excavating a small ice cave.
Mr. Xia said the inhospitable spot was ideal because China did not have a presence in that part of Antarctica, and because the rocky site did not have much snow, making it relatively cheap to build there.
Anne-Marie Brady, a professor of political science at the University of Canterbury in New Zealand and the author of a soon-to-be-released book, “China as a Polar Great Power,” said Chinese scientists also believed they had a good chance of finding mineral and energy resources near the site.
“China is playing a long game in Antarctica and keeping other states guessing about its true intentions and interests are part of its poker hand,” she said. But she noted that China’s interest in finding minerals was presented “loud and clear to domestic audiences” as the main reason it was investing in Antarctica.
Because commercial drilling is banned, estimates of energy and mineral resources in Antarctica rely on remote sensing data and comparisons with similar geological environments elsewhere, said Millard F. Coffin, executive director of the Institute for Marine and Antarctic Studies in Hobart.
But the difficulty of extraction in such severe conditions and uncertainty about future commodity prices make it unlikely that China or any country would defy the ban on mining anytime soon.
Tourism, however, is already booming. Travelers from China are still a relatively small contingent in the Antarctic compared with the more than 13,000 Americans who visited in 2013, and as yet there are no licensed Chinese tour operators.
But that is about to change, said Anthony Bergin, deputy director of the Australian Strategic Policy Institute. “I understand very soon there will be Chinese tourists on Chinese vessels with all-Chinese crew in the Antarctic,” he said.