Trending December 2023 # Advanced Cell Phone Tracker For Modern Parents # Suggested January 2024 # Top 12 Popular

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Frequently asked questions Does uMobix cell phone tracker work in real-time?

Yes, uMobix tracking app logs everything users do and sends reports directly to your user account. It usually takes up to 5 minutes to synchronize all data from a monitored device. In case of iOS, data synchronization depends on the backup perfomance (in some cases can take up to 24 hours).

How does uMobix work?

Our tracking app monitors and obtains information from target devices in stealth mode. All recorded data is sent to your userspace where it appears in the form of comprehensive dashboards. To start using mobile tracker, you have to purchase the app, log in to your account, install uMobix on an Android device, or provide iCloud credentials of a target iOS device.

Is it legal to use cell phone tracker?

It is absolutely legal to use uMobix if:

– You own the device you’re going to monitor;

– You’ve informed the designated users that their activities are being watched.

How often will it update from the target device?

By default, data is updated each 5 minutes for Android devices. You can adjust intervals depending on cell phone settings and internet connection. In case of iOS, data synchronization depends solely on the backup perfomance (in some cases can take up to 24 hours).

How can I track the location of a cell phone?

With the help of our cell phone tracker, you can locate a phone on the map. The technology also allows seeing where a user has been by using the location history feature. All information is displayed on the interactive map. You only have to log in to your account and open the needed page.

Can I track a cell phone with just a number?

Can you track someone’s location through their phone?

Yes, you can access a person’s phone location by using a cell phone tracker. You have to install the tracking app on a target device to be able to see user location in real-time.

How many devices can I track?

One subscription gives you access to one device. You can unlink and link as many devices as you wish but only one at a time.

Where can I view data from target device?

All data is delivered to your personal account. You can access your dashboard from any device or computer with your login credentials.

Is the icon visible?

After installation on an Android device, you can remove the icon from the menu. We know that tech-savvy kids can spot the icon right away. For iOS devices, the installation process does not include downloading the app on the device, so there won’t be any icon in the menu.

Can I install uMobix remotely?

To install cell phone tracking app on any Android device, physical access is required (for less than 1 minute). For iOS devices (iPhone or iPad), you only have to provide iCloud credentials and be ready to approve 2 FA code.

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Difference Between Primary Cell And Secondary Cell

Primary cell

Secondary cell

Read through this article to find out more about primary cells and secondary cells and how these two types of cells are different from each other.

What is a Primary Cell?

The type of electric cell which produces electrical energy by the action of an irreversible chemical reaction is called a primary cell. Since the primary cell involves the irreversible chemical reaction, therefore it cannot be recharged. Thus, the primary cells are designed to use once and then discarded.

The energy density of a primary cell is high; hence it discharges very slowly. The terminal voltage of the primary cell is very less than the EMF of the cell, it is because the internal resistance of a primary cell is very high that causes a high voltage drop within the cell while current drawn from it. Inside a primary cell, there is no fluid, hence it is also termed as dry cell.

What is a Secondary Cell?

The electric cell which can converter chemical energy into electrical energy and vice-versa is called secondary cell. The secondary cells involve reversible chemical reactions that means while the discharging of the cell the reaction takes place in the forward direction to produce electrical energy and while charging the reaction happens in reverse direction to stores the electrical energy in the form of chemical energy. Therefore, the secondary cells are designed to use repeatedly by recharging them again and again.

In long term, the cost of secondary cells is less than that of the primary cells. However, their initial cost is more than the primary cells. The energy density of the secondary cell is low; hence it discharges very quickly. Although, the EMF and the terminal voltage of a secondary cell is almost equal, it is because it has very low internal resistance that causes a very low voltage drop within the cell while discharging.

Secondary cells are used in laboratories to perform experiments, digital cameras, trimmers and many other electronic devices.

Difference between Primary Cell and Secondary Cell

The following table highlights the major differences between a primary cell and a secondary cell −

Basis of Difference Primary Cell Secondary Cell

Definition The type of cell that can only convert the chemical energy into electrical energy is known as primary cell. The type of cell that can convert chemical energy into electrical energy and vice-versa is called secondary cell.

Chemical reaction Primary cell involves irreversible chemical reaction. The reversible chemical reaction takes place in a secondary cell.

Recharging Primary cell cannot be recharged, once it discharged completely. Secondary cell can be recharged many times.

Use Primary cell can be used only once and then discarded. Secondary cell can be used again and again.

Internal resistance The internal resistance of the primary cells is high. Secondary cells have low internal resistance.

Internal voltage drop Primary cells have high internal voltage drop. Secondary cells have low internal voltage drop.

Terminal voltage For a primary cell, the terminal voltage is quite less than the EMF of the cell. The terminal voltage and EMF of a secondary cell are almost equal.

Energy density Primary cells have high energy density. The energy density of a secondary cell is low.

Discharging rate Primary cells discharge slowly. Secondary cells discharge quickly.

Current Primary cells are capable for producing weak currents only. Secondary cells can produce low as well as high currents.

Size and weight The primary cells are smaller in size and light in weight. Secondary cells are comparatively larger in size and heavy.

Inside content There is no fluid inside a primary cell, hence it is sometimes called dry cell. Secondary cell contains wet cell and molten salts inside it.

Initial cost The initial cost of primary cells is low. The initial cost of a secondary cell is relatively high.

Design The design of primary cell is simple. The design of secondary cell is complex.

Examples Dry cells, mercury cell and Daniel cell are the common examples of primary cells. Nickel-cadmium cell, Nickel-iron cell, Lead-acid cell, etc. are the examples of secondary cells.

Applications The primary cells are generally used in clocks, remote controls, torches and many other small sized portable devices. Secondary cells are used in digital cameras, toys, labs to perform experiments, etc.


The most significant difference between primary cells and secondary cells is that a primary cell cannot be recharged again, whereas a secondary cell can be recharged many times. Both primary and secondary cells are widely used in many portable devices to power them.

Bullet Charts: Advanced Custom Visuals For Power Bi

In this tutorial, we’ll discuss a custom visual called Bullet charts. They’re mainly used for measuring performance against target or previous years.

Bullet charts are useful visuals for comparing employee performance, shipment targets, sales targets, production targets, and many more.

This is a sample bullet chart that I have created. We’ll discuss how I created this bullet chart and the things that we can do in this particular custom visual. 

This is the data that we’ll be using in this example. It contains the player names, goals scored, target, and goals for last year. Later in this tutorial, we’ll create measures for the calculated columns. 

Search for “Bullet”, then add the Bullet Chart by OKViz. 

This is the one I prefer because it also shows the negative values on the other side if we have it in our data. 

Let’s add this visual on our report page and resize it. 

Then, add the Player for the Category field and the Goals Scored measure for the Value field. 

We should get this output. As you can see, we currently have bandings in our bullet chart. These are represented by the different hues of gray.

Let’s now drag the Target measure on the Targets field. 

It will then add target markers on our output.

In the General section of the Formatting tab, we can also change the orientation of our visual to vertical if we want to.

By default, if we resize this visual on our report page, the bars will also be resized automatically. 

If we don’t want that to happen, we can just set the minimum or maximum height of the bars.

After setting the maximum height of the bars, it will then look like this.

This part of the visual is the categories. If we want to, we can turn them off by disabling the Category.

For this example, it’s better if we leave this turned on. 

The Value axis is the X-axis of the visual. We can also turn off this one. 

But for this example, let’s just leave it on.

Another feature that would be useful is the Data labels. 

It will then show these labels which are the scores of our categories (the players).

Another cool thing about this visual is the conditional formatting. If we’ll just use a bar chart here, we won’t be able to conditionally format each one of the categories. 

As you can see from the image, only one target was set for all the individual players. 

However, in our dataset, there are different targets for each of the individual players. 

So, using a bar chart won’t create the visual that we want. That’s the reason why we are using a bullet chart in this particular example. 

As you can see, we can now set the if condition.

Let’s assign a red color for this condition so we can see which players are behind their target scores.

Obviously, these 3 players are behind their target scores. 

We can also change the color of the target markers. For this example, we’ll just use black.

We can change the shape of the target marker as well. For this example, let’s stick to the Line shape because it looks better than the other shapes.

In this visual, you can see the gray parts behind the bars. These are called Bandings. 

We can define static or dynamic bandings. For dynamic bandings, we can do that by creating calculated measures. We’ll be doing that after learning how to define static bandings.

For static bandings, we can set them here. 

Currently, there are 5 States where we can set a value for each of them.

We can define the State by an Absolute value or Percentage. In this instance, let’s use an Absolute value. 

For State 1, let’s set the value to 60 and change the color to a darker gray. 

As you can see, the banding changed on our visual.

Let’s then set the value and color for the other states. Make sure that the succeeding value you’ll be using is always higher than the previous state values.

As you can see, we also used a lighter gray color for every succeeding state. 

Now, the output should look like this. 

So, that’s how we can set a static banding.

For the dynamic bandings, we can place the measures in the States field. This will automatically override the static bandings that we defined previously.

Let’s now display the legends and set their position.

It should then look like this.

Let’s also turn off the Title and Background.

Let’s define a new column as State 1 and set 60% for the target goal. To get the percentage value of the first state, just multiply the Target value to .60. This basically means that if a player achieved only 60% of the target goal, they will be kicked from the team. 

For State 2, let’s use 70% and multiply the Target value to .70. This time, if the player reaches 70% of their target goal, they must be retained on the team.

Let’s add another column for State 3. For this one, let’s set 80% for the target goal and multiply it by .80. If the players achieved 80% of the target goal, their contract price will be raised.

Then, for State 4, let’s set the goal to 100%. If the player achieves 100% of their target goal, we must do anything to retain these players. 

For State 5, we’ll set the maximum value from either the Goals Scored or Target value. So, let’s define this with an if conditional statement wherein if the Goals Scored is greater than the Target, then we’ll get the Goals Scored. Else, we’ll get the Target value. 

Before we can use these calculated column measures, we need to change their format to Whole number. Make sure to change each one of them.

Let’s then add the first state on the States field.

As you can see, the first band has changed.

Let’s now add the other states on the States field. 

The output should then look like this.

We now have the dynamic bandings on our custom bullet chart. With this, we can easily see who the best players and the worst players are. 

The other thing that we can do with this visual is to use the Show % change over option. We can use this to compare how far a certain individual or player exceeded their target goal. For this example, let’s use the Closest achieved target.

On our visual, we’ll see that Christiano exceeded 9% of his target goal, and Salah exceeded 6% of his target goal. 

We can also use the Comparison value. However, we need to add an additional measure for comparison if we will use this.

For instance, let’s add the previous year target goals (Goals LY) on the Comparison value field. ‘ 

As you can see, the Comparison value works now. We can finally see that Christiano already achieved 41% of his target goal last year while Salah got 31%. 

Let’s remove the Comparison value for this example.  

Let’s keep using the Closest achieved target instead.

The last thing that we should do is the legends for the bandings. This is because we don’t really know what these bandings mean in our visual. 

To create the legend for our bandings, let’s add a 100% Stacked bar chart visual.

Then, let’s place our dynamic states on the Values field.

After that, turn off the Title. 

Turn off the Title under the X and Y axis. 

Then, turn off the X and Y axis as well. 

State 3 wasn’t added, and State 2 was added twice. So, let’s remove the second State 2 and add State 3 instead. 

Let’s change the colors of the states and use the same colors as the bandings on our bullet chart (darker gray to lighter gray).

We can also change the names of these states for the legend. For example, let’s change the first state to Kick the Players.

Let’s then change the name of the other states.

We can also create this using PowerPoint to make the legend look more appealing. If we don’t want to use PowerPoint, we can just turn off the Legend option.

Then create our label as “Kick the Players” and style it using this text box.

After that, move the text box on top of the bar chart and align it to the first bar. 

Then duplicate the first text box to change the text and color that correspond to our legend bars.

We can now select the text boxes and the bar chart to group them.

Then, properly position the bullet chart and the bar chart.

To sum up, you’ve learned how to create bullet charts and customize them. You’ve also learned a new technique called Banding, which allows you to group data into chunks based on your underlying data. Static and Dynamic are the two types of bandings in Power BI.

You’ve also gained an understanding of how comparisons can be made possible in bullet charts and how they can elevate the presentation of your data.

I hope you liked this tutorial and found it useful for your data visualizations.

Until next time,


How Parents() Function Works With Examples

Introduction to jQuery parents

Web development, programming languages, Software testing & others


$(selector ).parents(filter_expr)



In the above-given syntax, the jQuery parents() function is applied on a particular element. It is a selector tag where all ancestors are returned when this parent () function is applied to this selector tag. This function does not take any parameters, but still, it is considered optional.

selector: In this, the selector is nothing, but it is an HTML element or tag of which we want the element’s ancestors or grandparent element to be returned.

filter_expr: This is an optional parameter in this function for specifying the selector tag expression to look upwards in the DOM tree for searching with all this selector’s ancestors.

How parents() Function Works with Examples

In jQuery, the parents() function is a built-in function for displaying all the ancestors of the selected HTML tag for which this function needs to be applied. The working of this function is very simple Firstly, it will check for the specified selector tag, followed by the period (dot) operator and the parents() method to this selector tag. This function will traverse the entire DOM tree, where this tree is the representation of elements of the jQuery object.

Therefore parents() function traverses this DOM tree in the upward direction to search all the element’s ancestors such as grandparent element, great grandparent element, etc. are all displayed, which means this function parent () returns all the ancestor elements of the particular selected or matched HTML tag that is specified before the function declaration, and this particular specified selector optionally filters it. This function returns the element set in reverse order for the given multiple DOM having the original set, and the duplicate elements are removed and displayed.

Example #1


.parents_func_body* { display: block; border: 2px solid red; color: red; padding: 5px; margin: 15px; } <script $(document).ready(function() { $(“p”).parents().css({ “color”: “blue”, “border”: “2px solid red” }); });


In the above example, we have first made the document ready for the web page to be displayed according to the given function in the above code. In this, we are using the .ready() function for making the document ready. Then we specify the parents() function in which “p” the paragraph tag as a selector for this function, which means this function returns all the ancestor elements of the element “P” in the above code. Finally, we are applying the .css() function to properly display each element with described properties. This logic is defined or declared within the script tag, which is within the head tag.

Example #2

Now let us see another example for demonstrating the parents() function in which we are passing the optional parameters as some other HTML elements or selectors.


.main *{ border: 2px solid red; padding: 10px; margin: 10px; } function parents_func(){ $(document).ready(function(){ $(“p”).parents(“li, h2”).css({ “border”: “3px dashed blue”}); }); }

Conclusion – jQuery parents

In this article, we conclude that the parents() function in jQuery is very simple and is used to search or traverse the DOM tree, which consists of various elements to find out the parent element to help any developer to easily correct or upgrade any details. Similar to this parent () function, which returns all its ancestors elements of any selected element, even the parent() function also returns the direct parent element but not all the ancestors elements.

Recommended Articles

This is a guide to jQuery parents. Here we discuss the introduction and how parents() function works with examples, respectively. You may also have a look at the following articles to learn more –

11 Best Php Books For Beginners & Advanced Programmers

We are reader supported and may earn a commission when you buy through links on our site

PHP is a server-side scripting language used to develop static and dynamic websites or web applications. PHP stands for Hypertext Pre-processor, which earlier stood for Personal Home Pages.

Best Books to Learn PHP

Learning PHP, MySQL & JavaScript: With jQuery, CSS & HTML5 is a book written by Robin Nixon. The book helps you to build interactive, data-driven websites. In this edition, you’ll also study dynamic web programming with the latest versions, PHP, MySQL, JavaScript, CSS, HTML5, and key jQuery libraries.

At the end of the book, you will be able to learn how to build a social networking site that is suitable for desktop and mobile browsers.

Headfirst PHP & MySQL is the ultimate learning guide is a book written by Lynn Beighley. The book helps you to build dynamic, database-driven websites using PHP along with MySQL.

Packed with real-world examples. This book teaches you all the essentials for server-side programming, from the basic PHP and MySQL coding. You will also learn topics like form validation, session IDs, and joins, file I/O operations, etc.

The Joy of PHP is a book written by Alan Forbes. The writer starts with some basic HTML. This helps the beginner to catch up quickly and then goes step by step on how PHP works. The book allows you to start with the easy stuff like how to create and run simple PHP scripts, which helps you to modify web pages.

The book covers topics like installing and configuring PHP, Introduction to HTML, basic PHP Syntax, control structures, how to use a database, such as MySQL, etc.


PHP for the Web


Author Name: Larry Ullman

Publisher: Peachpit Press

Latest Edition: 5th edition

No of Pages: 496 pages

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PHP for the Web: Visual QuickStart Guide is a task-based visual reference guide uses step-by-step instructions. It also provides plenty of screenshots that help beginner and intermediate users to clear basic PHP concepts.

The writer Larry Ullman guides readers through the ins and outs of both PHP 5 and PHP 7. The book uses real-world examples to guide you through dynamic web development using PHP and show you what to do step by step.

PHP and MySQL Web Development is a book written by Luke Welling. The book describes the basics of the PHP language, explains how to set up and works with a MySQL database. You will also learn how you can use PHP to interact with the database and the server.

This PHP learning book focuses on real-world applications. It also covers important aspects of security and authentication to build a real-world website.

PHP and MySQL is a book written by Mike McGrath. This book is for new assumes you have no previous experience of any programming or scripting language. Therefore, it is an ideal book for the newcomer to learn PHP and MySQL technologies.

This PHP book demonstrates, by example, how to produce data-driven web pages using a PHP scripting language and MySQL database server.

You will also learn how to write PHP server-side scripts and create MySQL queries and how to create an e-commerce shopping cart.

PHP and MySQL for Dynamic Web Sites is a book written by Larry Ullman. It helps to develop dynamic, database-driven web sites, MySQL, and PHP.

This PHP book also covers security, sessions, and cookies, and using additional Web tools, with several sections for creating sample applications. This book also includes the latest features and techniques with PHP and MySQL.

Advanced PHP: New Features and Good Practices book is written by Josh Lockhart. In this book, you will learn best practices for learning PHP application architecture, databases, testing, debugging, etc. Therefore, if you have a basic understanding of PHP, it is a deal book for you.

The book teaches you some best PHP development methods like application security errors and exceptions, and more.

The Complete Reference is a book written by Steven Holzner. This PHP learning book deals with explaining how you can personalize the PHP work space, define operators and variables, manipulate strings and arrays, etc.

You will also learn how to access database information, tracks client-side preferences using cookies, executes FTP, and email transactions. This PHP book also covers how you can publish your applications to the Web.

You will also learn how to use PHP’s object-oriented tools to build blogs, guest books, with server-side file storage.

QuickPro Guide is a PHP book written by Larry E. Ullman. This book offers step-by-step instructions, complete scripts, and expert tips to guide readers. The book begins by PHP and then the database program (MySQL).

Then the writer also covers topics like security, sessions, and cookies and using several other sections for creating sample applications. In this PHP book, you will receive the bulk of the new material that helps you to learn the latest features and techniques with PHP and MySQL.


Murach’s PHP and MySQL


Author Name: Mike Murach

Publisher: Mike Murach & Associates Inc.

Latest Edition: 1st Printing edition

No of Pages: 366 pages

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Murach’s PHP and MySQL is a book written by Mike Murach. The book is divided into four sections. In the first section, you will learn how to develop, test, and debug your first PHP applications.

Section 2, you will learn skills like how to work with form data, arrays, sessions, cookies, objects, and regular expressions, etc.

Section 3 of this book teaches you how to design and create a database. The last section teaches you the specialized web skills.


PHP Cookbook


Author Name: David Sklar

Publisher: O′Reilly

Latest Edition: 3rd edition

No of Pages: 820 pages

View on Amazon

PHP Cookbook: Solutions & Examples for PHP Programmers Is an ideal reference PHP book written by David Sklar and Adam Trachtenberg. The book provides the best solutions for creating dynamic web content, everything from using basic data types to querying databases for RESTful APIs to testing and securing your site.

This PHP book covers topics like strings, numbers, arrays, and dates and times. You will also learn how you can access databases using PDO, SQLite, RESTful API clients and servers, including HTTP, XML, and OAuth.

FAQ: 🏅 What is PHP?

PHP is a server side scripting language. that is used to develop Static websites or Dynamic websites or Web applications. PHP stands for Hypertext Pre-processor, that earlier stood for Personal Home Pages.

📚 Which are the Best PHP Books?

Following are some of the Best PHP Books for Beginners & Advanced Programmers:

🚀 What are the basic requirements to learn PHP?

Just a full form of PHP would be enough. This book list is designed for beginners as well as experienced developers.

New Material For Studying Cell Mechanics May Revise Thinking On Disease

New Material for Studying Cell Mechanics May Revise Thinking on Disease Engineering professor’s research highlighted in Nature Materials

“Hopefully, this new material can serve as a springboard for helping researchers elucidate the complex relationship between cells and their environment,” says biomedical engineer Christopher Chen. “Which may bring us closer to understanding the mechanism of several diseases.” Photo by Chitose Suzuki

Researchers have long known that most cells living in tissues produce stabilizing networks of fibers and that the stiffness of those tissues, in turn, influences cell’s behavior. When this relationship goes awry, diseases like cancer and organ fibrosis result. But researchers have largely been studying this interaction using two-dimensional models that don’t mimic the fibrous materials in the body.

Enter Christopher Chen, a professor of biomedical engineering at Boston University’s College of Engineering, and his team, who have developed a three-dimensional platform for studying cell interactions with fibers and discovered relationships that may upend some of the thinking on how cells sense tissue stiffness. Chen and his colleagues detail their findings in a paper, “Cell-mediated fibre recruitment drives extracellular matrix mechanosensing in engineered fibrillar microenvironments,” published in October 2023 in Nature Materials.

Past research has suggested that the stiffness of the tissue that cells sit in affects their ability to spread and proliferate. Using a culture of cells grown on an elastic, flat, gel surface, previous researchers have found that as they increased the gel’s stiffness, the cells grew in size and proliferated. Recognizing that these physical conditions hardly mimicked the structure of actual tissues in vivo, Chen and his team set about creating a three-dimensional fibrous network model where the effects of tissue stiffness could be studied in a more realistic setting.

But first, they needed to develop a new material they could manipulate to adjust stiffness while mimicking the natural fiber structure of tissues. Bioengineer Brendon Baker and polymer chemist Britta Trappmann, two postdoctoral fellows in Chen’s lab, devised such a material, constructed three-dimensional matrices of fibers, embedded adult stem cells into this scaffolding, and began studying the cells’ response. Surprisingly, they found that the cells behaved very differently in these fibrous networks compared to flat gels.

For one, the pulling forces generated by cells only modestly stretched the Jell-O-like surface of the 2D model, but in contrast caused dramatic and permanent structural rearrangements in their matrix. They then adjusted the stiffness of the fibers and found that the cells—unlike those on the 2D gel—grew and proliferated more in a softer environment than in a stiffer one.

“The cell sits much like a spider within a web, applying forces to the fibers of the network,” says Baker. “These forces applied to the softer fibers allow cells to pull in or recruit more fibers, bringing more of the matrix within the cell’s reach. The cell’s ability to change its local environment could explain why we see more proliferation in this setting.”

“These findings highlight a gap in our understanding of how cells interact with their fibrous surroundings,” says Chen. “Hopefully, this new material can serve as a springboard for helping researchers elucidate the complex relationship between cells and their environment, which may bring us closer to understanding the mechanism of several diseases.”

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