Trending February 2024 # Enjoy Youtube’s Material Design Before Anyone Else # Suggested March 2024 # Top 11 Popular

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YouTube has had its current design long enough, and it’s time for a change. It looks like Google feels the same way since the tech giant’s material  design is coming to YouTube soon, but you can enjoy it now (like I have) thanks to a few easy-to-follow steps in Windows developer tools. If you are using another browser that is not Chrome, switch to it because you’re going to need it for this to work. Also, try these steps without signing into your account since I was only able to see it when I wasn’t signed in. You will also be able to see the material design if you are using incognito mode as well.

One of the changes you’re going to see is the “Upload” button being replaced by an arrow pointing up. You will also notice a more up-to-date font, round buttons and a better layout for a lot of pages. Google is also going to throw in a little something extra. Now the search bar and other items will change their color, so the color matches the scheme of whatever site you decide to visit.

We are always going to find some things not to like, but the new look that is coming to YouTube is not bad at all. I think that the cleaner look is going to be a hit with YouTubers.

How to Activate the New Material Design on Google

1. To enable the upcoming material design on YouTube, you will need to go to YouTube for the United States and not your local YouTube.

2. Press “Ctrl + Shift+ i.”

5. Look for the cookie that says “VISITOR_INFO1_LIVE” and delete it.

6. Once you are done deleting the specified cookie, go back to console and type in:


Judy Sanhz

Judy Sanhz is a tech addict that always needs to have a device in her hands. She loves reading about Android, Softwares, Web Apps and anything tech chúng tôi hopes to take over the world one day by simply using her Android smartphone!

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Handling Sterilization Of Plant Material


Handling and sterilization of plant material is an important aspect of any laboratory or plant research facility. Plant material, such as leaves, stems, and seeds, can be contaminated with microbes and other pathogens that can affect the results of research. To ensure the accuracy and reliability of research, it is important to properly handle and sterilize the plant material.

In this tutorial, we will discuss various methods of handling and sterilization of plant material.

Part 1: Handling of Plant Material

Handling of plant material involves the proper collection and preparation of the sample for sterilization. Before collecting plant material, it is important to choose a suitable plant that meets the research requirements.

The plant should be healthy and free of any disease or infestation. Plants that are grown in contaminated soils or exposed to pollution should be avoided.

The collection of plant material should be done using sterile equipment such as scissors, forceps, and scalpels. It is important to avoid any contact with the plant material using bare hands to avoid contamination from the skin microbiome.

The equipment used for the collection should be sterilized by autoclaving, ethylene oxide treatment or UV light. Gloves should be worn to protect the hands from any contamination.

Once the plant material has been collected, it should be placed in sterile bags or containers. The containers should be labelled with the plant name, date of collection, and any other relevant information.

The containers should be kept in a cool and dark place to avoid any damage to the plant material.

Part 2: Sterilization of Plant Material

Sterilization of plant material involves the removal of any microbes or pathogens that may be present on the plant material. Sterilization can be done using various methods, including chemical treatment, heat treatment, and radiation.

Chemical Treatment

Chemical treatment involves the use of various chemicals to sterilize the plant material. Commonly used chemicals include sodium hypochlorite, hydrogen peroxide, and ethanol. Sodium hypochlorite is a strong oxidizing agent that can be used to kill bacteria, fungi, and viruses.

Hydrogen peroxide is a powerful oxidizer that can be used to sterilize surfaces and equipment. Ethanol is a common disinfectant that can be used to kill bacteria and viruses.

To sterilize plant material using chemical treatment, the plant material is soaked in a solution of the chosen chemical for a specified time. The solution should be prepared using distilled or deionized water to avoid any contamination from other chemicals.

Heat Treatment

Heat treatment involves the use of high temperatures to sterilize the plant material. This method is commonly used for the sterilization of seeds and soil. Heat treatment can be done using dry heat or moist heat.

Dry heat involves heating the plant material in an oven at a high temperature for a specified time. Moist heat involves heating the plant material in a moist environment, such as an autoclave or a pressure cooker.

The temperature and time of exposure for heat treatment should be determined based on the plant material and the level of contamination. The plant material should be placed in a suitable container or bag before heat treatment.

After heat treatment, the plant material should be allowed to cool to room temperature before being handled.


Radiation treatment involves the use of ionizing radiation to sterilize the plant material. This method is commonly used for the sterilization of medical equipment and pharmaceutical products. The most commonly used ionizing radiation is gamma rays.

Radiation treatment should be done in a specialized facility that is equipped with the necessary equipment and safety measures. The plant material is placed in a suitable container or bag before irradiation.

The exposure time and dosage of the radiation should be determined based on the plant material and the level of contamination. After irradiation, the plant material should be allowed to cool to room temperature before being handled.

Part 3: Best Practices for Handling and Sterilization of Plant Material

To ensure the best possible results, it is important to follow some best practices for handling and sterilization of plant material. These include −

Use of Sterile Equipment

All equipment used for the collection, handling, and sterilization of plant material should be sterilized before use. This includes scissors, forceps, scalpels, containers, and bags. Sterilization can be done using autoclaving, ethylene oxide treatment, or UV light.

Proper Labelling

All containers used for the collection and storage of plant material should be labelled with the plant name, date of collection, and any other relevant information. This helps to avoid any confusion and mix-ups during handling and storage.

Avoiding Contamination

The plant material should be handled with care to avoid any contamination. Gloves should be worn, and contact with the plant material using bare hands should be avoided. All surfaces and equipment should be properly disinfected before and after use.

Choosing The Right Sterilization Method

The sterilization method should be chosen based on the type of plant material and the level of contamination. Chemical treatment, heat treatment, and radiation can all be used for sterilization, but the best method will depend on the specific requirements of the research.

Proper Storage

After sterilization, the plant material should be stored in a cool and dark place to avoid any damage. The containers used for storage should be sealed to avoid any contamination.


Handling and sterilization of plant material is an important aspect of any laboratory or plant research facility. Proper handling and sterilization of plant material can help to ensure the accuracy and reliability of research results.

Sterilization can be done using various methods, including chemical treatment, heat treatment, and radiation. To ensure the best possible results, it is important to follow some best practices for handling and sterilization of plant material, including the use of sterile equipment, proper labelling, avoiding contamination, choosing the right sterilization method, and proper storage.

By following these guidelines, researchers can ensure the accuracy and reliability of their research results.

Lunch, Anyone? Kaju Tofu House

Lunch, Anyone? Kaju Tofu House Authentic, award-winning Korean fare in Allston

Served in a sizzling stone bowl, this mild kimchi and beef tofu soup is one of the more popular soup combinations, which come in five levels of spiciness. Photos by Nailya Maxyutova (COM’14)

Navigating Allston’s hub of Korean restaurants can be exhausting. On Harvard Avenue alone, diners have several to choose from. To find the best, here’s a suggestion: look for large crowds on the sidewalk in front. Inevitably, you’ll find yourself at Kaju Tofu House.

Open since March 2012, Kaju has quickly earned accolades. Boston magazine named it Best Korean Restaurant earlier this year. And a recent visit made clear why.

Kaju prides itself on using the freshest possible vegetables and meats. The restaurant makes ample use of traditional Korean ingredients like doenjang (fermented bean paste), soy sauce, pepper flakes, and gochujang (fermented red chili paste). And the prices will make you want to come back again and again.

Korean cuisine is notable for the many side dishes (banchan) that come with a meal. Kaju serves about nine, ranging from dried shredded squid and spicy cucumber kimchi to a light salad and broccoli drizzled in a sweet Korean sauce, all free with an entrée.

But diners come here for more than just the tofu soup and side dishes. Among the best of the barbecue dishes is the galbi, four tender strips of sweet barbecued beef ribs ($21.99). If you’re thinking about an entrée and soup, consider the combos: they’re much cheaper. For example, the galbi and soup combo is just $18.99. Ordered separately, they’d come to $32.99. That said, the separate portions are larger. Patrons can choose from other money-saving combinations, including tofu soup with bugolgi, thin slices of grilled marinated beef ($15.99), or the tofu and bibimbap, a bowl of warm rice topped with vegetables, raw egg, and meat ($13.99).

Not surprisingly, rice is a staple of nearly every dish. A complimentary bowl accompanies most dishes, but hungry diners can order an extra bowl for $1 or an stone pot of rice for $2. What’s the difference? The rice at the bottom of the stone pot tends to be crispy, making it the more popular choice.

The restaurant’s slow service and cramped space don’t seem to have made a dent in its popularity. The booths are comfy and inviting and the large windows let in a lot of warm sunlight. But since Kaju does not take reservations, those who don’t want to wait should try coming between 3 and 5 p.m., when the place is quieter. At that time of day, diners can even be seen reading a book while eating.

Those wanting a sweet ending to a meal, however, be prepared: the restaurant offers neither dessert nor alcohol. But the large portions are guaranteed to fill you up and are perfect for sharing with friends.

Kaju Tofu House, 58 Harvard Ave., Allston, is open daily from 10 a.m. to 10 p.m.; phone: 617-208-8540. The restaurant accepts MasterCard, Visa, and Discover, but not American Express. Kaju does not take reservations. By public transportation, take an MBTA Green Line B trolley to Harvard Avenue and walk to the restaurant.

Sonia Su can be reached at [email protected]; follow her on Twitter at @SoniaSu_.

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Python ‘If…Else’ In A List Comprehension (Examples)

You can place an if...else statement into a list comprehension in Python.

For example:

["EVEN" if n % 2 == 0 else "ODD" for n in numbers]

Notice that the if...else statement in the above expression is not traditional if...else statement, though. Instead, it’s a ternary conditional operator, also known as the one-line if-else statement in Python.


Given a list of numbers, let’s construct a list of strings that are odd/even based on what the corresponding number in the list of numbers is.

Here’s the code:

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] # Use a list comprehension to create a new list that includes # "EVEN" for even numbers and "ODD" for odd numbers even_or_odd = ["EVEN" if n % 2 == 0 else "ODD" for n in numbers] print(even_or_odd) # Output: ["ODD", "EVEN", "ODD", "EVEN", "ODD", "EVEN", "ODD", "EVEN", "ODD", "EVEN"]

In this example, the if..else clause in the list comprehension checks to see if the number n is even (that is, if n is divisible by 2 with no remainder). If it is, the string “EVEN” is included in the new list; otherwise, the string “ODD” is included.

The Traditional Approach

Let’s see the traditional for loop with an if...else statement approach for comparison:

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] # Create an empty list to store the results even_or_odd = [] # Use a for loop to iterate over the numbers for n in numbers: # Use an chúng tôi statement to determine if the number is even or odd if n % 2 == 0: even_or_odd.append("EVEN") else: even_or_odd.append("ODD") print(even_or_odd) # Output: ["ODD", "EVEN", "ODD", "EVEN", "ODD", "EVEN", "ODD", "EVEN", "ODD", "EVEN"]

Here’s a fun little illustration of converting the traditional approach to a list comprehension with an if…else statement:

One-Line If-Else Statements in Python

To add an if...else statement into a list comprehension in Python, you need to use a slightly modified version of an if...else statement, called the conditional operator.

The conditional operator in Python allows you to write conditional expressions in a shorter and more concise way. It is also known as the ternary operator because it takes three operands.

Here is the general syntax for using the conditional operator in Python:

x if condition else y

Here, x and y are the values that will be returned based on the evaluation of the condition. If the condition evaluates to True, x will be returned; otherwise, y will be returned.

Here is an example of using the conditional operator to return the maximum of two numbers:

# Define two numbers x = 5 y = 10 # Use the conditional operator to return the maximum of x and y # Print the maximum print(max) # Output: 10

The condition checks to see if x is greater than y. If it is, the value of x is returned; otherwise, it returns y.

The conditional operator can be useful whenever you want to write a conditional expression in a single line of code. It can make your code more readable and concise by avoiding multi-line chúng tôi statements. Also, some argue it only makes the code shorter but less readable which is why some don’t use conditional operators at all.

To include an if...else statement into a list comprehension, you need to pass it as a conditional expression.


Let’s take a look at another example of list comprehensions an if...else statements.

Here is an example of a for loop with an if...else statement that prints whether a number is odd or even in a list of numbers.

First, let’s start with the traditional approach:

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] for number in numbers: if number % 2 == 0: print(number, "is even") else: print(number, "is odd")


1 is odd 2 is even 3 is odd 4 is even 5 is odd 6 is even 7 is odd 8 is even 9 is odd 10 is even

This for loop can be converted into a one-line list comprehension expression using a conditional operator if...else:

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] print([f"{number} is {'even' if number % 2 == 0 else 'odd'}" for number in numbers])

The output of this expression would be the same as the original for loop:

1 is odd 2 is even 3 is odd 4 is even 5 is odd 6 is even 7 is odd 8 is even 9 is odd 10 is even Should You Place If…Else Statements in List Comprehensions?

Whether or not you should use list comprehension expressions with conditional operators in your code depends on your personal preferences and the specific requirements of your project.

Some developers never use one-liner shorthand like list comprehensions or conditional operators.

List comprehensions can be a concise and elegant way to write certain types of for loops, but they can also make your code more difficult to read and understand if you are not familiar with the syntax.

If you are working on a small project with no collaborators, using list comprehension expressions (with if...else statements) can make your code more concise and easier to write.

However, if you are working on a larger project and you are collaborating with other people on a project, it may be more beneficial to use longer and more descriptive for loops that are easier for other people to read and understand.

Ultimately, the decision to use list comprehension in your code should be based on the specific needs of your project, the level of experience and familiarity of the people working on the project, and the trade-off between conciseness and readability.

My personal take: A list comprehension with an if...else statement looks messy and I’d probably not use such expression ever in my code.

Thanks for reading. Happy coding!

Read Also

Python One-Line If…Else Statements

Ultrasonic Helmet Lets Anyone ‘See’ Like A Bat

The Sonic Eye

Those higher frequencies, which offer a much crisper picture of the world, underlie the Sonic Eye, a helmet that replicates bat echolocation.

“We were wondering whether humans needed special neural wiring to echolocate, or whether a human brain could do it with the same audio info that’s available to a bat with ears designed for ultrasonic sounds,” says Stanford theoretical neuroscientist and co-creator Jascha Sohl-Dickstein.

Invented as a side project by Sohl-Dickstein and his former colleagues at the University of California, Berkeley, the device features a speaker at its crown, which emits ultrasonic chirps like a bat. When the echoes rebound off objects, the sound waves travel into two bat-shaped ears — called pinna — that rest on either side of the helmet and help gauge the direction of the echo. Molded from clay, each pinna has an ultrasonic microphone embedded at the center. A computer program records the echoes and instantly slows them by a factor of 20.

Dropping the pace and the pitch makes the imperceptible ultrasonic echoes audible to the human ear. Sonic Eye wearers can then use the echo delay to judge distance or mentally track their surroundings (see video below). In a study published last month, the team shows that blindfolded wearers of the Sonic Eye can judge whether a dinner plate, was moved left/right or up/down by ~20 centimeters — just over the length of a dollar bill.

Along with possibly assisting the blind, the new device presents a good case that the human mind is innately capable of comprehending high-definition soundscapes, like bats do. Other assistive devices have tried to harvest ultrasonic echoes, but they typically reprocess the sounds, discarding large amounts of spatial information.

“That’s the novelty here. A person uses The Sonic Eye to make sound judgments about the environment, but it doesn’t do anything to the signal apart from downsampling it,” says Lore Thaler, a psychologist at Durham University in the United Kingdom, who wasn’t involved in creating the device.

But here’s a cool twist. When both the blind and sighted try echolocation, another brain area connected with understanding visual motion switches on.

“It seems the brain processes echolocation somewhat separately from information for other types of sounds,” says Thaler. “Echolocation is not just hearing like everything else, but a special form of spatial audition that the brain possibly keeps set apart from other aspects of hearing.”

For now, blind echolocators are far better at the skill than sighted individuals trained in the art, because many, like Kish, developed the talent as a child. It took months or years to perfect. The question is whether the same would apply with the Sonic Eye.

The Sonic Eye at work

A blindfolded Benjamin Gaub echolocates and navigates through a eucalyptus forest.

“In theory, you could get a finer resolution with an ultrasonic signal versus what an echolocator would make with their tongue,” says sensory neuroscientist and co-developer Santani Teng who now works at MIT. An ultrasonic bat chirp, due to shorter wavelength, bounces more sound waves off an object than any echo made by a human voice. An ultrasonic echo has more pieces bouncing back, which offer more spatial information for the brain to parcel. Bats can perceive differences as small as 6 mm – or the thickness of three nickels stacked on top of each other.

A better audio-spatial picture, using ultrasound, might expedite the echolocation learning process for humans. Plus most human echolocators with blindness still use a walking cane, says Thaler, because they have trouble with judging elevation and detecting obstacles near the floor. She says that it would be interesting to see if future users had an easier time of tracking things on the ground.

“You don’t want to block out sensory cues that people need to navigate,” says Teng. For instance, bats can modify their ultrasonic pulse based on the size of the prey that they’re hunting. A blind user should be able to change the ultrasonic output as much they want, says Teng.

But before moving into studies with the blind, the team wants to miniaturize their current prototype into a headband, says co-developer Benjamin Gaub, a Berkeley PhD student in neuroscience who is developing the Sonic Eye into a product suitable for the visually impaired. Currently, the Sonic Eye requires a laptop in a backpack that holds the device’s software, but with a little tweaking, the simple program could be run on a microchip or a smart phone. The team will also consult with the blind community in the Bay Area to customize additional features.

Why Iwatch May Not Release Before Spring 2024

For the past year or so, Apple executives have been teasing new product categories coming in 2014.

“There will be new categories,” Tim Cook told The Wall Street Journal back in February, for example. “We’re not ready to talk about it, but we’re working on some really great stuff.” Sadly, six months have already passed without a single major Apple product launch, let alone a new product category.

I’m referring to a mythical iWatch, of course, although Apple is rumored to enter new markets other than smartwatches, such as home automation accessories.

A report earlier today by KGI Securities’ pretty reliable analyst Ming-Chi Kuo has hinted that Apple has been forced to push mass production of the iWatch back more than a month. He now expects the device to enter production as late as November.

Assuming Kuo is right, when can we expect iWatches to hit store shelves? Read on…

Let me just say it flatly: there’s no way the iWatch will release by Christmas if mass-production is kickstarting in November. For starters, companies like Apple lock their holiday lineups well before Black Friday.

For our non-US readers, Black Friday is the Friday following Thanksgiving Day in the United States, which itself falls on the fourth Thursday of November. Frequently regarded as the unofficial beginning of the Christmas shopping season, Black Friday has routinely been the busiest shopping day of the year since 2005.

iWatch as a fitness band. Image top of post: iWatch as a fashionable watch.

iWatch as a fitness band. Image top of post: iWatch as a fashionable watch.

Indeed, who wants an iPhone that’s no longer “new” for Christmas?

Apple typically releasing new category products in or around Spring is also a factor. For example, the original iPad was released on April 3, 2010. As for the original iPhone, it got introduced in January 2007 but hit the market six months later due to FCC requirements outside of Apple’s control.

The fact that we haven’t seen a single iWatch part signals that components hadn’t entered production yet. And if suppliers hadn’t really started shipping iWatch parts to Apple, and assuming assembly work won’t commence until late-November, a 2014 launch appears increasingly unlikely.

An iWatch in late-November or early-December would be a terrible timing. Worse, as Apple would have a very limited number of devices, it’d would be unable to keep up with huge demand as fans flock to buy a brand new category-defining Apple gizmo since the iPad.

As for January-February 2024 release, these are typically quiet periods of the year and therefore bad product launch months. By this logic, (again, assuming Kuo is spot on about late-November production) March or April 2024 is the soonest the iWatch would come out.

Keep in mind that the company got away with delaying Mac Pro shipments for months, not weeks, so anything is possible.

Apple’s new retail outlet in Istanbul, Turkey.

Apple’s new retail outlet in Istanbul, Turkey.

Apple may announce the iWatch right before mass production in order to avoid leaks.

In this scenario, a November introduction right ahead of production ramp-up could help prevent leaks as much as possible while keeping the surprise factor alive. Assuming the iWatch does enter mass production in mid-to-late November, this begs the question of Christmas availability.

A very late-2014 launch with constrained supply is always a distant possibility. With that in mind, Apple could formally introduce the device in late-October or even early-November and opt to collect pre-orders in the weeks ahead. This would buy them some precious time to build enough units before first shipments start leaving docks in China.

There’s of course no telling how much demand there is for the iWatch, so maybe a few million units would be enough to survive Christmas demand after all?

Check out Motorola’s ‘Why a Watch’ video regarding its Motor 360 device.

So there you have it.

If Kuo is right, the iWatch probably won’t see its high-profile introduction and launch before Spring 2024 at the earliest – unless you believe that Tim Cook was (un)intentionally lying about great new products throughout 2014.

At any rate, Apple being Apple means the iWatch will release when it’s fully ready and up to Apple’s highest standards. Tim Cook & Co. don’t seem to be religiously committed to roadmaps and deadlines when it comes to category-defining product launches so I’m not surprised that the iWatch has been delayed a couple times now.

And if you think that Apple hiring senior-level iWatch executives a few short months ahead of launch is nonsensical, keep in mind that its head of iPad marketing was hired two months before the tablet’s introduction.

Kuo said the iWatch will incorporate a flexible AMOLED display, sapphire coated display cover, higher waterproof standards and brand new system-on-a-chip components. He’s also dropped estimates for 2014 iWatch shipments by 40 percent to three million units.

And your $0.02?

When can we expect the iWatch?

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