Tuesday, January 4, 2011

Long Hours at Computer: Health Risks and Prevention Tips

Computers are ubiquitous. Nowadays computers are in every house and people are perpetually on it. Many children also find that using computers gives them a sense of power and accomplishment. Adding to that, the Internet has become an indispensable element of life for most people in the contemporary world.

The increased use of computers in the workplace has brought about the development of a number of health concerns. Many people are unaware of the side effects of their Hi-tech lifestyle on themselves, their friends, and their family until it's too late. If working with computers is a major task for you daily, you need to consider these associated potential health risks as well:

  • Eye strain: Eye strain is a common health hazard associated with prolonged exposure to computer screens. Constantly staring at the computer screen can cause dry or watery eyes because of your tendency to blink less. Excessive strain on eyes - Computer Vision Syndrome (CVS) - can lead to itchy or burning eyes, blurred or double vision and headaches.
  • Neck and shoulder pain: One of the main causes of neck pain in middle-aged people today is from straining their neck to see and work on a computer screen. Excessive computer usage also leads to stiff shoulders. All this results from poor seating posture and poor organization of work equipments on the desk.
  • Carpal tunnel syndrome: Typing at the keyboard or using the mouse for hours and hours is horrible for your joints. This can lead to Carpal tunnel syndrome which causes pain, numbness and tingling sensation in the arm (mostly in the thumb and index fingers). Carpal tunnel is a narrow passageway on the palm side of your wrist that protects a main nerve to your hand and nine tendons that bend your fingers. The compression of the median nerve in this tunnel causes the signs and symptoms associated with carpal tunnel syndrome.
  • Social Disconnect: The Internet has provided us a platform where we can say whatever we want and be whoever we want. This can have a negative effect since people act in certain ways and say certain things that they otherwise wouldn't do in real life.Many people believe that the Internet experience is the same as real life experience, but it's not.

You can use the following tips to avoid some of these complications:
  • Occasionally close your eyes for a few minutes and every 20 to 30 minutes or so look away from the computer to stare at an object in the distance. You can also sit back and just close your eyes for a few minutes.
  • To prevent dryness and irritation in your eyes, blink more often. Every 20 minutes, blink 10 times by closing your eyes very slowly.
  • Spread fingers apart for several seconds while keeping wrists straight.
  • For the back pain and other muscular related problems, it is suggested that you get up every hour, stretch and move around for about five minutes.
  • Sit straight while you are working on the computer. Avoid slouching.
  • Use a desk lamp, if possible, instead of an overhead light to reduce computer eye strain.
  • Make sure to keep the computer screen placed at least 18 inches away from direct view and top of the screen is at the eye level.
  • Using an ergonomically correct workstation can improve painful situations quickly.

Along with these tips you should also disconnect from time to time. You can do so by:
  • Always use a computer for a specified amount of time. Health experts say screen time at home should be limited to two hours or less a day. Only in that time you should check your email and do all the necessary stuff.
  • Try to keep your laptop away from you as much as possible. Try keeping it out of your sight so that you don't get tempted to use it.
  • Go out for a walk or a bike ride with your friends and socialize.

These are just some techniques to avoid injuries and disorders from computer usage.

Melancholic Depression: Causes, Symptoms, and Treatment

Melancholic depression, or 'depression with melancholic features' is a subtype of major depression characterized by the inability to find pleasure in positive things combined with physical agitation, insomnia, or decreased appetite.

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Causes of Melancholia

Not much is known about the causes of melancholia; however, it is believed that it is mostly due to biological causes. Some may also have inherited this disorder from their parents. It is not caused by life events, although stressful circumstances can trigger an episode.

In psychoanalysis, Hanna Seagal describes melancholic depression as a defense mechanism devised by the body to fight the depressive state of the mind. This defense is known as manic-schizoid. Freud was the first person to use melancholic to describe depression. There are several symptoms with which we can identify this disorder in a person.

It has also been found that melancholia is quite common in individuals with bipolar depression I. It may also be present in bipolar depression II with features of psychomotor agitation.

Studies have also found that melancholia is quite common in an inpatient setting. Individuals with psychotic features are also believed to be more prone to this disorder.

It is quite common in old age where it often presents itself with psychotic symptoms. Often, it is missed by physicians and its symptoms are considered as just part of dementia. However, it may also be present along with dementia in the elderly.

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Symptoms of Melancholic depression

Melancholic Depression is a type of major depression that tends to be diagnosed more often in older individuals, and appears to affect men and women equally. According to the "Diagnostic and Statistical Manual of Mental Disorders," there are eight symptoms that make up the diagnostic criteria for melancholic depression, four of which need to be met to diagnose melancholic depression.

  1. Loss of Pleasure
A person must report or exhibit a loss of interest or pleasure in almost all activities. For example, a person may have loved to go camping, but he no longer experiences interest or enjoyment in camping since becoming depressed.

  1. Lack of Reactivity to Pleasant Events
A person with melancholic depression may have difficulty reacting positively to a pleasant event or situation. Her mood may slightly improve in response to something positive, but will likely revert back to her previously depressed mood.

  1. Distinctly Depressed Mood
A person may report or exhibit a depressed mood that is obviously different from his mood when he is not depressed, or when he is sad in response to a situation or event.

  1. A.M. Depression
Symptoms of melancholic depression are typically worse in the morning than at other times of the day. This can be based on self report or observation.

  1. Early Morning Awakening
Early morning awakening is defined as waking up at least two hours before the usual wake-up time. This early awakening is not a result of being awakened by an outside influence (e.g., alarm clock, loud noise, etc.).

  1. Psychomotor Retardation or Agitation
Psychomotor retardation is significantly decreased activity or movements that are much slower than usual. Psychomotor agitation is the opposite---increased activity or movements that are much faster than usual. These changes can often be observed by other people.

  1. Weight Loss
People with melancholic depression may experience significant weight loss, perhaps to the point of anorexia.

  1. Excessive Guilt
Excessive guilt is characterized by feeling guilt that is an inappropriate response to a situation or event. For example, a person may accidentally dial a wrong number, and feel excessive guilt about doing so that would be more intense or last longer than what is usual in such a situation.

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Treatment

The three most common treatments for depression are psychotherapy, medication, and electroconvulsive therapy. Psychotherapy is the treatment of choice for people under 18, while electroconvulsive therapy is only used as a last resort.

Melancholic depression does not respond well to psychotherapy and counseling, since it is a fairly severe psychotic mental disorder. Hence, treatment mainly comprises of physical intervention via drugs that involve antidepressant medications, and an extended follow up period.

Electroconvulsive therapy (ECT) or "shock treatment" is also used as a treatment modality for melancholic disorder. Under anesthesia, the patient is given a brief and very mild electric shock which lasts for a fraction of a second and is delivered to the brain through electrodes. This type of treatment is said to be quite effective for psychotic depression such as melancholic depression disorder.

Hospitalization is sometimes also required if the depression is severe and the afflicted and depressed person is feeling suicidal. As is supposed to be the case for all other forms of treatment, medical professionals will explain and discuss the advantages, possible side-effects and alternative options for treating the melancholic form of depression.

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Sources and Additional Information:



Sunday, January 2, 2011

BleachBit - Clean junk to free disk space and to maintain privacy

BleachBit quickly frees disk space and tirelessly guards your privacy. Free cache, delete cookies, clear Internet history, shred temporary files, delete logs, and discard junk you didn't know was there. Designed for Linux and Windows systems, it wipes clean 90 applications including Firefox, Internet Explorer, Adobe Flash, Google Chrome, Opera, Safari, and more.

Beyond simply deleting files, BleachBit includes advanced features such as shredding files to prevent recovery, wiping free disk space to hide traces of files deleted by other applications, and vacuuming Firefox to make it faster. Better than free, BleachBit is open source.

BleachBit has many useful features designed to help you easily clean your computer to free space and maintain privacy.
  • Simple operation: read the descriptions, check the boxes you want, click preview, and click delete.
  • Multi-platform: Linux and Windows
  • Free of charge
  • Free to share, learn, and modify (open source)
  • Free of adware, spyware, and malware
  • Translated to 41 languages: Arabic, Asturian, Belarusian, Brazilian Portuguese, Bulgarian, Catalan, Chinese (Simplified and Traditional), Croatian, Czech, Danish, Dutch, Faroese, Finnish, French, Galician, German, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Kurdish, Low German, Malay, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Tamil, Thai and Turkish.
  • Shred files to hide their contents and prevent data recovery
  • Shred any file (such as a spreadsheet on your desktop)
  • Overwrite free disk space to hide previously deleted files
  • Portable app for Windows: run without installation
  • Command line interface for scripting and automation
  • CleanerML allows anyone to write a new cleaner using XML
  • Frequent software updates with new features
Uses

Use BleachBit to:
  • Free disk space
  • Reduce the size of backups and the time to create them by removing unnecessary files
  • Maintain privacy
  • Improve system performance (by vacuuming the Firefox database, for example)
  • Prepare whole disk images for compression (common for "ghost" backups and virtual machines) by wiping free disk space
Cleaners

BleachBit includes a growing list of cleaners. Typically each cleaner represents an application such as Firefox or Internet Explorer. Within each cleaner, BleachBit gives options covering components that can be cleaned such as cache, cookies, and log files. Each option is given a description to help you make good decisions.
The following are a list of cleaners available in BleachBit 0.8.5. You should be able to see a list of options by hovering your most over the cleaner name.
  • Adanaxis
  • Adobe Reader
  • aMSN
  • aMule
  • APT
  • Audacious
  • Bash
  • Beagle
  • Chromium
  • Downloader for X
  • Deep scan
  • Easytag
  • ELinks
  • emesene
  • Epiphany
  • Evolution
  • Exaile
  • Filezilla
  • Firefox
  • Flash
  • gedit
  • gFTP
  • GIMP
  • GL-117
  • GNOME
  • GNOME Art
  • Google Chrome
  • Google Earth
  • Google Toolbar
  • gPodder
  • Gwenview
  • Hippo OpenSim Viewer
  • Internet Explorer
  • Java
  • KDE
  • Konqueror
  • Liferea
  • Links 2
  • LiVES
  • Metacity
  • Microsoft Office
  • Midnight Commander
  • Miro
  • MySQL
  • Nautilus
  • Nexuiz
  • Notify OSD
  • OpenOffice.org
  • Opera
  • Paint
  • PDFedit
  • Phatch
  • Pidgin
  • PlayOnLinux
  • RealPlayer
  • Recoll
  • Rhythmbox
  • Safari
  • Screenlets
  • SeaMonkey
  • Second Life Viewer
  • Skype
  • sqlite3
  • System logs
  • System
  • TeamViewer
  • Thumbnails
  • Thunderbird
  • TortoiseSVN
  • Transmission
  • Tremulous
  • VIM
  • Virt-Manager
  • VLC media player
  • Vuze / Azureus
  • The Battle for Wesnoth
  • Winamp
  • Windows Defender
  • Windows Explorer
  • Silverlight
  • WINE
  • winetricks
  • WinRAR
  • WinZip
  • WordPad
  • X11
  • XBMC Media Center
  • XChat
  • Xfce
  • Xine
  • X-Moto
  • Yahoo! Messenger
  • yum
  • Zsh
Advanced cleaners

Going beyond standard deletion of files, BleachBit has several advanced cleaners:
  • Clear the memory and swap on Linux
  • Delete broken shortcuts on Linux
  • Delete the Firefox version 3 URL history without deleting the whole file�with optional shredding
  • Delete Linux localizations: delete languages you don't use.
  • Clean APT for Debian, Ubuntu, Kubuntu, Xubuntu, and Linux Mint
  • Find widely-scatted junk such as Thumbs.db and .DS_Store files.
  • Execute yum clean for CentOS, Fedora, and Red Hat to remove cached package data
  • Delete Windows registry keys�often where MRU (most recently used) lists are stored
  • Delete the OpenOffice.org recent documents list without deleting the whole Common.xcu file
  • Overwrite free disk space to hide previously files
  • Vacuum Firefox, Google, Liferea, Thunderbird, and Yum databases: shrink files without removing data to save space and improve speed
  • Surgically remove private information from .ini and JSON configuration files with deleting the whole file

Developers' site: http://ping.fm/9nSxt

Downloading (choose your Operating System): http://ping.fm/DGAtMdownload

Screenshot:

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Family Holidays Arrangements for Alzheimer's Patients

Holidays can be hectic, and for someone with Alzheimer's the increased bustle can feel overwhelming. Think ahead and plan the activities taking in account your loved family members affected by Alzheimer's Disease and other Dementia.

The cheerful chaos and joyful confusion of a typical holiday season can end up overwhelming and distancing an Alzheimer's patient from loved ones just at the time when family members want to feel closest. But with a little forethought you can take steps to help draw a loved one with Alzheimer's disease into family gatherings and make the holidays less stressful for all involved.

"It's important to try to minimize how hectic the environment is," says Peter Reed, PhD, senior director of programs for the Alzheimer's Association. "Too much activity and noise can confuse a person with Alzheimer's, making them withdraw."

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Holiday Planning with an Alzheimer's Patient in Mind

There are a number of things you can do in advance to help both the person with Alzheimer's and the entire family enjoy themselves during holiday get-togethers. Here are a few suggestions that might be of assistance:
  • Communicate with family members. "The holidays could be the first time that the family sees changes that have taken place in the person with dementia," Reed says. "It's important to communicate the fact that that person has Alzheimer's and explain that it's changed the way he or she interacts with people. It's also important to tell family members to be as patient as possible." An added benefit to breaking the news: You can ask other family members and friends for their help in taking care of the Alzheimer's patient during the holidays, allowing you time to handle other tasks.
  • Plan ahead and be flexible. Involve the Alzheimer's patient in planning your holiday festivities by finding out which traditions mean the most to them. Try to keep your favorite family traditions, but be flexible in paring them down to ease your burden and adapt to changes wrought by the disease. Keep your expectations reasonable; acknowledge that things have changed and that the gathering will not be as it was in years past.
  • Prepare a "quiet room" for the person. "Make sure the person with Alzheimer's has a dedicated space where he or she can go to get some rest and take a break from the noise and confusion of holiday get-togethers," Reed says.
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Minimizing Festivity Frenzy for the Alzheimer's Patient

Here are strategies you and your family should keep in mind to make sure the festivities go are as pleasant as possible for the person with Alzheimer's disease:
  • Don't turn the gathering into a memory test. By asking, "Do you remember who this is?" a loved one with dementia will likely feel demoralized and agitated. Instead, introduce each person by name, including the nature of their relationship to your loved one. For example, you might say something like, "Sharon, your nephew Fred wants to say hi."
  • Involve kids. The energy and enthusiasm of kids can rub off on someone with Alzheimer's and brighten their day. Plan activities that children and a loved one can safely participate in together, like singing or making cookies. Just be sure to keep an eye out to make sure that the kids aren't wearing out or stressing the Alzheimer's patient as they spend time together.
  • Maintain the person's routine. If your loved one with Alzheimer's usually takes a walk after lunch, help them to keep up with this activity during the holidays. You should also allow them to take a nap at their usual time and eat at the same times as usual. Such structure can make someone with dementia feel more comfortable amid the hustle and bustle of the holidays.
  • Include the Alzheimer's patient in the day's activities. Depending on their current abilities, your loved one might be able to help prepare the meal or set the table. Getting involved will help them to feel like they have a purpose in the day's events.
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Holiday activities for Alzheimer's Patients

With these key factors in mind, here is a suggested list of some wonderful activities families can do together with a family member who has dementia or Alzheimer's disease:
  1. String popcorn
  2. Make paper chain garland
  3. Decorate apples or oranges with cloves and ribbon (pomander)
  4. Make holiday cards
  5. Stick stamps and return labels onto greeting cards
  6. Go caroling together
  7. Play old holiday music or try new holiday music
  8. Read holiday books aloud
  9. Make cookies
  10. Rake fall leaves
  11. Make paper snowflakes to decorate the house
  12. Take a stroll down main street to see the store windows
  13. Polish the silver for the arriving guests
  14. Put out holiday candles throughout the house
  15. Find holiday related crossword puzzles (kids books)
  16. Place holiday ornaments into a decorative bowl
  17. Make a simple holiday floral arrangement
  18. Invite a few friend over to visit for holiday tea and cookies
  19. Wrap gifts
  20. Collect pine cones for a decorative basket
  21. Rent a favorite holiday movie for the whole family
  22. Do a jigsaw puzzle together
  23. Take a nature walk together in the park
  24. Hang the holiday cards that arrive on the mantel
  25. Make a holiday card holder
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Choosing Holiday Gifts for Alzheimer's Patients

Holidays are special for everyone and it is important for aging seniors and those with diminished mental awareness to be remembered so they may enjoy these events. Friends and relatives can choose a gift that is sure to please by asking questions and observing the patient's needs.

The most important factor to consider is matching the gift to the current condition of the patient. Relatives and friends who have not seen the person in a long time may not realize that these conditions not only affect memory, but also can affect concentration. In early stages of dementia, for example, magazines with bright pictures and short books are welcome gifts. As these diseases progress, one's interest in these activities lessens and these would not be useful.

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Gifts recommendations:

  • Stuffed animals make good gifts for many nursing home patients. It is important to choose those that can be laundered. A reindeer for Christmas, a stuffed turkey for Thanksgiving or a birthday bunny can help celebrate these special occasion
  • Musical gifts, if encouraged by the facility, can provide pleasure for the family member. A small radio or CD player with soothing holiday CDs can often aid a patient in going to sleep. Check with the staff before buying. If they are not equipped to take the time to turn it off and on, the gift would be wasted.
  • Laminated photo collages of past holidays can help keep memories alive. Laminate sheets can be bought at any office supply store and applied to the sheet of photos of family or friends. These will help the person keep in touch with the past.
  • Holiday cards made by grandchildren that include a photo of the child are welcome gifts.
  • Light-weight sweatshirts and sweatpants. Clothing that is easy to slip into makes the job of the staff much easier. For a special holiday an inexpensive Christmas or birthday shirt is a nice touch.
  • Non-slip house shoes are good if the patient is allowed to wear them.
  • A small television with DVD player can be a gift that the entire family buys together.
  • Seasonal gifts like a small artificial Christmas tree with non-breakable ornaments or a tiny American Flag for Memorial Day add a nice touch to the room. Reusable seasonal gifts should only be given if arrangements can be made to remove the gift and store it for another season.
  • A greeting card that can be personalized by recording a message. Hearing a familiar voice will give pleasure to persons with many stages of aging-related diseases.
  • An electronic photo album keeps family and friends fresh in the patient's mind. Including scanned photos of the person's life in happier times can evoke pleasant memories. Current photos of children and grandchildren are nice additions.
Keeping the Larger Picture in Mind

When you do some advance planning, what could have been a stressful time for a loved one with Alzheimer's may actually end up feeding the soul. "We find they often get kind of energized when they're with family," Kim Linder of Tampa, Fla., says of her elderly in-laws, both of whom suffer from dementia. "They just like to be around us, especially because we make a big fuss over them."


Sources and Additional Information:



Saturday, January 1, 2011

Directional Movement Index (DMI)

Overview

The directional movement index (DMI) is a technical indicator created by J. Welles Wider in 1978. Wilder is also the architect of another commonly used indicator called the relative strength index. The DMI is extremely helpful for measuring price direction as well as the strength of the movement. It is generally suitable for trading trending and ranging markets. Many traders use the directional movement index as part of their entry-exit strategy and to make decisions about whether to go long or short.

The DMI is a tool commonly used by traders to distinguish between weak and strong trends. It is extremely popular with individuals who utilize trading strategies based on trend following systems. It can be used to trade a wide variety of assets, including stocks, commodities and currencies. The directional movement index is actually a moving average of the price range and is typically calculated over a 14-day period. The DMI calculation is based on the price range of the asset over a specific period. Then the most recent price is weighed against the previous price range.

A line scaled from 0 to 100% is used for the purpose of rating the directional movement of a price. The higher the value of the DMI is, the stronger the signal for a trend. On the other hand, the lower this value is, the less the potential for a trending price movement.

Two lines are needed that reflect the buying and selling pressure in the drawing of a DMI indicator chart. The positive directional indicator, marked as DMI+, measures how strong the price movement in an upward trend is, whereas the negative directional indicator is marked as DMI- and measures how strong the price movement in a downward trend is.


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The first thing to look for when examining the DMI lines is which of the two is higher. Some trend traders refer to line on top as the dominant DMI line and consider it stronger and more likely to forecast the trend direction. It is regarded that bullish market conditions are experienced when the -DI is lower than the +DI. The vice versa is true for bearish market conditions.

Trading Signals

A number of different trading systems have developed around Directional Movement. The following rules are based on the system presented by Dr Alexander Elder in Trading for a Living:

Go long when DMI+ (+DI) is above DMI- (-DI) and either:

  • ADX rises while +DI and ADX are above -DI; or
  • ADX turns up from below +DI and -DI.
Exit when +DI crosses below -DI.

See ADX for further details.

Go short when -DI is above +DI and either:

  • ADX rises while -DI and ADX are above +DI; or
  • ADX turns up from below +DI and -DI.
Exit when -DI crosses below +DI.

Use stop-losses at all times.

Additional Notes

  1. The DMI crossovers can generate many false signals, so the other indicators should be used for confirmation of the DMI crossovers.
  2. The Average Directional Movement Index (ADX) is an important addition to the DMI+ and DMI- indicators. In fact, the ADX is calculated using both DMI lines.

Sources and Additional Information: