上海龙凤419OL

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Country Top stories: Creating the perfect wave—with science—and saving sick kids with gene-edited skin Email Country * Afghanistan Aland Islands Albania Algeria Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia, Plurinational State of Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, the Democratic Republic of the Cook Islands Costa Rica Cote d’Ivoire Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Holy See (Vatican City State) Honduras Hungary Iceland India Indonesia Iran, Islamic Republic of Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea, Democratic People’s Republic of Korea, Republic of Kuwait Kyrgyzstan Lao People’s Democratic Republic Latvia Lebanon Lesotho Liberia Libyan Arab Jamahiriya Liechtenstein Lithuania Luxembourg Macao Macedonia, the former Yugoslav Republic of Madagascar Malawi Malaysia Maldives Mali Malta Martinique Mauritania Mauritius Mayotte Mexico Moldova, Republic of Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Norway Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Qatar Reunion Romania Russian Federation Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Swaziland Sweden Switzerland Syrian Arab Republic Taiwan Tajikistan Tanzania, United Republic of Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela, Bolivarian Republic of Vietnam Virgin Islands, British Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe By Roni DenglerNov. 10, 2017 , 4:51 PM (LEFT TO RIGHT): © WSL/SEAN ROWLAND; MICK ELLISON/AMNH; MARK WITTON Click to view the privacy policy. Required fields are indicated by an asterisk (*) Court demands that search engines and internet service providers block Sci-HubThe American Chemical Society (ACS) has won a lawsuit it filed in June against Sci-Hub, a website providing illicit free access to millions of paywalled scientific papers. ACS had alleged copyright infringement, trademark counterfeiting, and trademark infringement; a district court in Virginia ruled on 3 November that Sci-Hub should pay the ACS $4.8 million in damages after Sci-Hub representatives failed to attend court.A boy with a rare disease gets new skin, thanks to gene-corrected stem cells A 7-year-old who lost most of his skin to a rare genetic disease has made a dramatic recovery after receiving an experimental gene therapy, researchers announced Wednesday. The treatment—a whole-body graft of genetically modified stem cells—is the most ambitious attempt yet to treat a severe form of epidermolysis bullosa (EB), an often-fatal group of conditions that cause skin to blister and tear off at the slightest touch.When dinosaurs went extinct, many animals literally came out of the darkThe demise of dinosaurs was good news for mammals, whose numbers exploded in the aftermath of the extinction. Now, a new study suggests that mammals’ behavior changed rapidly as well, as the first of our furry ancestors began venturing out in the daylight after living a primarily nocturnal existence. The switch may have even sparked the eventual evolution of humankind.Ancient lizardlike creature bridged gap between land and seaA beautifully preserved, nearly complete fossil is shedding new light on the evolution of the aquatic, ancient reptiles called pleurosaurs. The 155-million-year-old bones belong to a new species whose anatomical features weren’t fully adapted to water, but were on the way to enabling an aquatic lifestyle researchers reported this week. The pleurosaurs may provide scientists with insights about how evolution might have progressed among other ancient creatures that also undertook the land-to-sea transition.A surfer and a scientist teamed up to create the perfect waveGood surfing waves are a rarity—few beaches have a bottom contour that can transform a swell into waves that surfers want to ride, and even then, the vagaries of the swell—its size, angle, periodicity—mixed with ever-changing winds and tides mean great surf sessions are few and far between. Now, a champion surfer and a fluid mechanics specialist have teamed up to make a surfing wave of unearthly perfection.last_img read more