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Andehit là những hợp chất hữu cơ mà phân tử có nhóm R-CHO liên kết trực tiếp với nguyên tử cacbon hoặc hidro. Đây là một loại độc tố, tạp chất xuất hiện trong các phân tử rượu, chúng được hình thành trong sự oxy hóa rượu entanol. https://gomsubaokhanh.vn/ban-co-biet-tac-hai-cua-andehit-trong-ruou-khong.html

5 Edmodo Activities for the First Day of School http://t.co/PWSm6HqI

Here are links to number of interesting presentations from the "E-books in Libraries: A Global Question of Survival?" seminar that took place in London on February 2013. The event was co-sponsored by IFLA MLAS (Management of Library Associations Committee) and CILIP (Chartered Institute of Library and Information Professionals) and featured presentations by experts about the ebook situation in libraries around the world.

"Analysis of millions of tweets finds more precise use of social media which seems to contradict idea that Twitter users want to share everything with everyone"

This tool allows anyone to create an animated video online. You can create your animated video on Wideo by dragging and dropping any element into place in the editor section then set the sequence of the animations.You can manually adjust the timing of the animation of each individual image. You can upload your own images or use the stock options that Wideo offers. They include text, cartoons, and drawings. .

"The Liberal/National Coalition has finally announced its official National Broadband Network (NBN) policy, confirming its preference for fibre to the premises and claiming it can deliver this faster than the current Labor plan, without actually making good on earlier threats to dismantle NBN Co entirely. What are the key elements of the Coalition plan, and what aspects remain undiscussed and vague? This is Lifehacker's comprehensive guide."

"Line up your phones and tablets to create a race track across up to five screens. No apps. No downloads. Just start a race, sync up and tap your screens to rev your engines. Multiplayer games for the mobile browser are here. RACER IS A MOBILE CHROME EXPERIMENT. TEST DRIVE IT IN A CHROME MOBILE BROWSER AT G.CO/RACER"

"If Google+ were a social network, you'd have to say that for one with more than 500 million members - that's about half the size of Facebook, which is colossal - it's having next to no wider impact. You don't hear about outrage over hate speech on Google+, or violent videos not getting banned, or men posing as 14-year-old girls in order to befriend real 14-year-old girls. Do people send Google+ links all over the place, in the way that people do from LinkedIn, or Twitter, or Facebook? Not really, no. There's a simple reason for this. Google+ isn't a social network. It's The Matrix."

"Schoolchildren are at risk of having their online activity tracked and monitored for targeted advertising by internet firms through free cloud based education services. A survey has found that many parents do not know about data mining - the process of tracking email and web browsing habits in order to target advertising - but once they do they have grave concerns for their kids' online privacy, and believe schools need to do more to protect it. The survey commissioned by American IT industry group SafeGov asked 1000 Australian parents about their knowledge of data mining."

"Google co-founder Sergey Brin has been yakking about Google Glass for more than two years. Yet until this week, we didn't know even the most basic facts about the platform. Google spilled some beans in an earnings call this week. The company also published facts about the hardware, software and licensing. And finally, users started receiving actual units, and have been blabbing about them on social media."

"How will mobile phone technology such as Google Glass - the wearable gadget that searches for whatever we look at - and social networks like Facebook and Twitter influence our searches? Should we be concerned that sensitive personal information is being filtered through a small number of companies?"

Xiaomi Redmi Note 5 just passed FCC certifications at UNITED STATE, to be announced soon

"The Puzzle Maker (also known as Puzzle Creator or Editor) is an in-game puzzle editor that allows the creation, testing, and publishing (to Steam Workshop) of custom single-player and co-op test chambers. The Editor also adds new lines from Cave Johnson which, altogether, adds a story to downloaded test chambers. The DLC introduces the player to "The Multiverse" which contains an infinite number of Earths, an infinite number of Apertures, and therefore, an infinite number of test chambers. Puzzle Maker is not intended as a replacement of Hammer, which while more powerful and generalized in nature, is significantly more difficult and time consuming to use. It is possible to export a VMF from Puzzle Maker and open it in Hammer; many mappers do this to add polish or features that are not currently possible using the Puzzle Maker. Some mappers use the Puzzle Maker to quickly iterate through (and test) puzzle designs before building a chamber from scratch with Hammer. It is not possible to load a Hammer VMF file in Puzzle Maker."

"What follows is an explanation of the Flipped Classroom Model, a model where the video lectures and vodcasts fall within a larger framework of learning activities. (Note: I am titling it the Flipped Classroom Model to get folks' attention given the Flipped Classroom popularity right now.  It really is a cycle of learning model.)  It provides a sequence of learning activities based on the learning theories and instructional models of Experiential Learning Cycles - http://reviewing.co.uk/research/learning.cycles.htm and Bernice McCarthy's 4MAT Cycle of Instruction- http://www.aboutlearning.com/what-is-4mat/what-is-4mat.

Booko is a site with a very simple goal - to find the cheapest place to buy books & DVDs in Australia. This site started out as a personal itch and has slowly grown into a very handy site, slowly adding more shops for comparison and more features to make it easier to use. You can read more about Booko at the Blogo. What does it do? Booko is not an online shop. It goes out to the Internet and looks up book & DVD prices for you and figures out the shipping costs. For the international sites like the Amazons (.com and .co.uk), the prices are converted into Aussie dollars.

JESS3's mission is simple: to organize and beautify information to make it more accessible. In this presentation, JESS3 co-founder and President, Leslie Bradshaw, talks through how brands are beginning to leverage data visualization to impact the knowledge that drives the world's conversations.

A few months ago, two teachers, Santeri Koivisto and Joel Levin, decided to make the software more accessible and relevant to teachers. They joined forces to found MinecraftEdu and started offering discounted educator licenses to Minecraft. MinecraftEdu now offers a plug-in, which enables teachers to tailor the software to individual curriculum. And a fresh new wiki is dedicated to sharing ideas with topic suggestions such as "How To Use Redstone, (a fictional mineral) To Teach Electricity." Teachers can also work with others to co-develop lesson plans within the game software.

"Julia Gardiner is taking photos of what appear to be the most mundane objects - sugar bowls and random wall shots - in the cafe where we meet for a chat. But she's an Instagrammer, one of a growing number of people using their smartphones to take pictures of the world around them and then uploading them for the world to see."

Finding creative solutions to energy issues has become a major priority for Google co-founder and CEO Larry Page in recent years. For the obvious reasons -- a growing population, increasingly scarce resources, and climate change -- he believes that the corporate world needs to operate more sustainably, and he is determined to build the nation's first zero-carbon company. This means a business that ultimately is so energy efficient and uses so much clean power that it emits no greenhouse gas -- a very tall order indeed. Experts aren't sure whether it's even possible for a company to emit no carbon, but Google is trying to come as close to that goal as possible. "As we became a bigger user of energy, we wanted to make sure we were not just part of the problem, but part of the solution," says Urs Hölzle, Google's employee No. 8 and a senior vice president who oversees the company's green initiatives.