Q: Most full-term babies weigh between six and nine pounds at birth. However, it is possible for a baby to be healthy even if she weighs more or less than average at birth. Remember that weight is not the only determining factor of health. Your baby's doctor will be able to let you know if there is anything you should be concerned about. The Centers for Disease Control and the World Health Organization offer standardized growth charts for male and female babies based on length and age. These charts are used to calculate your child's percentile. A high percentile means your child is large compared to other children his age, while a low percentile means he is small compared to other children his age.  A low percentile only means that your baby is small, not necessarily that he is behind developmentally. Despite the usefulness of growth charts for indicating a healthy weight range for infants, every baby is different. In most cases, simple welfare checks on your baby will indicate whether he is gaining enough weight to be healthy and to allow for adequate growth and development. There are different growth charts for babies who are breast-fed and babies who are formula-fed because they tend to grow at different rates. Growth charts do not take genetic factors into account, and these play a huge role in determining your baby's weight. Be sure to think about the height and weight of both parents when processing information about your baby's size.  If both parents are shorter than average, it should not be surprising that the baby would be in a lower percentile, as she is likely to be short as well. (The average height in the United States is 5'8" for men and 5'3" for women.) If, on the other hand, both parents are taller than average, a low percentile may warrant more careful monitoring. In addition, babies with certain genetic disorders or other medical conditions such as Down syndrome, cystic fibrosis, or heart disease may also grow at a different rate. Most infants lose some weight in the first few days after birth, and then slowly begin to gain it back. As long as your baby does not lose more than 10% of his birth weight and starts gaining weight within the next few days, there is usually no cause for concern. Most babies get back to their birth weight by 2 weeks. Babies typically gain about five to seven ounces a week after this initial weight loss and double their birth weight within three to four months. If your baby is not on track to gain this much weight, talk to your pediatrician about your concerns. Babies who are born prematurely have different nutritional needs than babies who are born at full term. They may not be able to feed properly and their bodies may not yet be capable of processing food normally, which is why they are often kept in the NICU. The goal of this specialized care is to help the premature baby grow at the same rate that she would have if she were still in the womb, which is faster than a full-term baby would be expected to grow. There are growth charts tailored to premature babies.
A: Know the averages. Get familiar with growth charts. Consider genetic factors. Expect immediate weight loss. Know the needs of premature babies.

Q: This program allows you to create a virtual hard drive on your computer which you can then install Windows 7 on. You can then boot up Windows 7 in a window while you're running Windows 8.  Most users can leave the installation options at their defaults. You can download from Oracle VM VirtualBox virtualbox.org/  Oracle VM VirtualBox is a free program, though there are other options available as well. This method is great for getting quick access to Windows 7 without having to reboot, but graphic-intensive programs such as games will not perform well on the virtual machine. When using VirtualBox, you'll be creating a virtual drive out of the free space on your hard drive. You'll want to be able to dedicate at least enough space for the operating system to install and run properly (about 20 GB), more if you want to be able to install programs. Make sure that you are leaving enough space for Windows 8 programs and files as well. This will start the process for installing a new virtual operating system. You will be prompted to give the machine a name and select the operating system.  You can name the virtual machine anything, though simply naming it "Windows 7" might be the most convenient. Select "Microsoft Windows" as the type. Select "Windows 7 (32 bit)" or "Windows 7 (64 bit)" depending on the version you are installing. Your Windows installation disc will say which version it is. You cannot run a virtual 64-bit machine on a 32-bit computer. Click here for details on determine what version computer you have. You can only dedicate RAM from the physical amount installed on your computer. Windows 7 requires 1 GB (1024 MB) of RAM, and it is recommended that you allocate about half of your available RAM for good performance. Don't allocate all of your RAM, or your regular operating system will encounter errors when the virtual machine is running. This will start the process for creating a new virtual drive to install Windows 7 on. If you know you'll need the hard drive image file for other programs, you can choose the appropriate file type, but most users can leave "VDI" selected. The choice is up to you. A fixed size drive will offer improved performance, but the dynamic drive may take up less space on the computer. If you select "Dynamic", you'll still need to set a maximum size. Click the Folder icon next to the drive name to select where you want it saved. This is especially useful if you want to store your virtual machines on a storage drive. Beneath the virtual drive name, you'll see a slider that allows you to set the size or limit. Make sure that you include at least enough space to comfortably install Windows 7 (20 GB). This may take a while, especially if you are creating a large fixed drive. You can install Windows 7 from an ISO file just like you would an installation DVD. Both require a valid Product Key. If you purchased Windows 7 from the Microsoft website, you'll most likely be using an ISO. You'll see the details of the system in the main frame. This will open the Storage menu, where you can select your installation disc or ISO. it will likely say "Empty". You will see the Attributes and Information on the right. Select how you would like to load the installation disc.  If you have an installation disc inserted in your computer, select the appropriate "Host Drive". The term "Host" refers to your physical computer. If you are installing from an ISO, select "Choose a virtual CD/DVD disk file". This will open a file browser, allowing you to find and select your ISO file. Once you've selected your installation media, you can start the virtual machine and begin installing Windows 7. Select your Windows 7 virtual machine and click "Start". A new window will open mimicking the display of another computer. You will see a message indicating when to press any key on your keyboard. Installation will proceed from this point just as if you were installing it on a physical computer. Click here for detailed instructions on completing the Windows 7 installation. Once you have Windows 7 installed, you can start it at any time by opening VirtualBox, selecting your Windows 7 virtual machine, and clicking Start. You can also right-click on the virtual machine in VirtualBox to create a shortcut on your desktop which allows you to start the machine with a single click.
A:
Download and install Oracle VM VirtualBox. Ensure you have enough free space to install Windows 7. Click the "New" button at the top of the VirtualBox window. Enter in the basic information for your virtual machine. Set the amount of memory (RAM) you want to dedicate to the machine. Select "Create a virtual hard drive now". Select "VDI" as the hard drive file type. Select between a "Dynamically allocated" or "Fixed size" drive. Select a location for the virtual drive. Set the drive size or limit. Wait for the drive to be created. Download the Windows 7 ISO file, or insert your installation disc in your DVD drive. Select your new virtual machine in the VirtualBox main window. Click the "Storage" header. Select the virtual CD/DVD drive. Click the small Disc button in the Attributes section. Start the virtual machine. Press a key when prompted to start the installation. Follow the prompts to install Windows 7. Start the virtual machine.