light - SE Members Blog post - syndication express2024-03-28T15:06:10Zhttps://syndicationexpress.ning.com/profiles/blogs/feed/tag/lightBLUE LIGHT HAZARDShttps://syndicationexpress.ning.com/profiles/blogs/blue-light-hazards2019-12-28T09:44:34.000Z2019-12-28T09:44:34.000ZBiswajit Senguptahttps://syndicationexpress.ning.com/members/BiswajitSengupta<div><p></p><p><span style="font-size:12pt;"><strong>BLUE LIGHT HAZARDS</strong></span></p><p style="text-align:left;"><strong>The optical pathway in a human eye is connected to the visual cortex (part of the brain which mediates the sense of light) via a nervous system. The nervous system comprises photo-receptors of two types – 1) Rods; 2) Cones (named on basis of the shapes of these nerve receptors). These photo-receptors, in turn, contribute to three types of visions with image forming functions and are important for normal daily function and life quality.</strong></p><p style="text-align:left;"><strong>Scotopic<span> </span>(Rod) Vision-When the field luminances lie between 10⁻⁶<em>cd/sqM</em> to 10⁻²<em>cd/sqM</em>. This is a vision in the darkness. The world is grey and there is no sensation of colour.</strong></p><p style="text-align:left;"><strong>Mesopic<span> </span>Vision- Most important vision from a Lighting Designer’s point of view. This occurs when the field luminance is raised upwards from 10⁻²<em>cd/sqM </em>to 10<em>cd/sqM.<span> </span></em>As the luminance moves upward the luminosity of red increases more strongly than that of the blues due to changing contributions of the Rods and Cone receptors. This is known as the Purkinje phenomenon and is considered as an important aspect for designing effective road lighting, as it takes into account the luminance concept as well as the neurological aspects of road lighting.</strong></p><p style="text-align:left;"><strong>Photopic</strong><strong><span> </span>(Cone) Vision</strong>-<span> </span>This is a </p><p style="text-align:left;"><strong>daylight vision,i.e. when the luminance </strong></p><p style="text-align:left;"><strong>is above 10<em>cd</em>/<em>sqM.</em> Photopic vision is coloured.</strong></p><p style="text-align:left;"><strong>The third type of photoreceptor was discovered (first in mice in 2002) and then in humans and primates in 2005. These receptors were found in mammalian retina and are called<em><span> </span>Intrinsically</em><em> Photosensitive Retinal Ganglion </em><em>Cells -3) ipRGCs</em>. Melanopsin, a type of photopigment and belonging to a family of opsins (light-sensitive retinal protein)was found to form a mesh-work in ipRGCs These photo-receptors were found to be sensitive to the absorption of short-wavelength blue in the visible region, peaking at around 480nM (deep blue). Unlike the classical photo-receptors Rods & Cones which contribute to the formation of images, the ipRGCs are non-image forming. These cells contribute to sub-conscious non-image functions. They serve as primary conduits through which photic information is relayed from the retina to non-image forming visual centres of the brain, ie direct communication to the circadian system which impacts mental and physical health. Extensive studies show that blue light after passing through our cornea and lens excites the melanopsin in ipRGCs with absorption sensitivity peaking at 482nm (deep blue region). Photo reversal of bleaching (found to be most effective with blue light) takes place if the duration of exposure to this wavelength is either excessive or subject to shorter exposures over prolonged periods. It is a photo-chemical reaction which augments the capability of rhodopsin molecules (photopigments contained in the rods) to absorb photons in large numbers. This may lead to a cascading effect allowing the molecules to reach the critical number of photons required to induce damage in the retinal cells. In view of the crystalline nature of lens in infants and children, the penetration of blue light is high. Thus this type of retinal damage is more pronounced in infants and children.</strong></p><p style="text-align:left;"><strong>Digital devices such as smartphones, iPads, e-readers (kindles), and LED lights did not exist a decade ago. Over the last five years or so there has been a galloping increase in use of these devices. The LED which contains about 35% of harmful blue light has nowadays become a dominant technology for backlighting in all digital devices. But what is more disturbing is the gradual replacement of traditional light sources by more energy-efficient LED source</strong><strong>.</strong></p><p style="text-align:left;"><strong>After the discovery of a blue LED at the end of the twentieth century, extensive research started in order to commercialise the use of LEDs so that it can be used for general lighting. The first step was to get white light which was made possible by the use of yellow phosphors. Despite great developments in phosphor technology, it has been observed that over a course of time bleaching of phosphors (particularly in high power LEDs) causes a shift in colour temperature. The blue light is not absorbed as effectively and, in turn, the blue light increases over time. Of late the city of Calcutta (Kolkata) has witnessed an invasion of LED lights in the public domain. Change to a new concept is good, but not at the cost of standard norms of good lighting practice. Here almost all streetlight poles and guard rails of flyovers are getting adorned with blue and white strips of LED. The blue is deep blue i.e. in the shorter wavelength. As a driver, I have experienced a distracting and painful nature of drive through a maze of white and blue (mostly long stretches of blue) on Calcutta’s longest flyover from Race Course to Parama island at Eastern Metropolitan Bye Pass. It is not only distracting it gobbles the traditional streetlights on the flyover on which a motorist need to focus on safe driving. To add to the woes most of the strips are deep blue which adversely affects the ocular health of drivers frequenting such stretches.</strong></p><p></p></div>Is Your Light Shining Brightly?https://syndicationexpress.ning.com/profiles/blogs/is-your-light-shining-brightly2016-09-26T18:03:17.000Z2016-09-26T18:03:17.000ZBill and Teddy Rogershttps://syndicationexpress.ning.com/members/BillandTeddyRogers<div><div class="separator"><a href="https://3.bp.blogspot.com/-CXmDWqo42IQ/V-lY9J3AlgI/AAAAAAAABWM/GShBz4cv2vABOstka9wwzBp7FyRPSOe-wCLcB/s1600/NeighborsImage-250.jpg" target="_blank"><img src="https://3.bp.blogspot.com/-CXmDWqo42IQ/V-lY9J3AlgI/AAAAAAAABWM/GShBz4cv2vABOstka9wwzBp7FyRPSOe-wCLcB/s1600/NeighborsImage-250.jpg" border="0" class="align-center" alt="NeighborsImage-250.jpg" /></a></div><div class="western"><span> </span></div><div class="western" align="justify"><span>Confronting the needs of others brings out various attitudes in us. Jesus used the story of the good but despised Samaritan to make clear what attitude was acceptable to Him.</span></div><div class="western"><span> </span></div><div class="western" align="center"><span><b>JESUS AND THE PARABLE OF THE GOOD SAMARITAN</b></span></div><div class="western" align="center"><span> </span></div><div class="western" align="justify"><span><a href="https://www.blogger.com/null" name="en-NIV-25390" target="_blank" id="en-NIV-25390"></a><a href="https://www.blogger.com/null" name="en-NIV-25391" target="_blank" id="en-NIV-25391"></a> <span><b>Luke 10:25-35 (NIV) says</b></span> <span>“</span><span><b>25</b></span> <span>On one occasion an expert in the law stood up to test Jesus. “Teacher,” he asked, “what must I do to inherit eternal life?”</span> <span><b>26</b></span> <span>“What is written in the Law?” he replied. “How do you read it?”</span> <span><b>27</b></span> <span>He answered, “‘Love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind’; and, ‘Love your neighbor as yourself.’”</span></span></div><div class="western" align="justify"><span><br /></span></div><div class="western" align="justify"><span><a href="https://www.blogger.com/null" name="en-NIV-25392" target="_blank" id="en-NIV-25392"></a><a href="https://www.blogger.com/null" name="en-NIV-25393" target="_blank" id="en-NIV-25393"></a><a href="https://www.blogger.com/null" name="en-NIV-25394" target="_blank" id="en-NIV-25394"></a> <span><b>28</b></span> <span>“You have answered correctly,” Jesus replied. “Do this and you will live.”</span> <span><b>29</b></span> <span>But he wanted to justify himself, so he asked Jesus, “And who is my neighbor?”</span> <span><b>30</b></span> <span>In reply Jesus said: “A man was going down from Jerusalem to Jericho, when he was attacked by robbers. They stripped him of his clothes, beat him and went away, leaving him half dead.</span></span></div><div class="western" align="justify"></div><div class="western" align="justify" style="text-align:center;"><span><span><a href="http://www.primelifeministries.com/2016/09/is-your-light-shining-brightly.html" target="_blank">CONTINUE READING: Is Your Light Shining Brightly?</a><br /></span></span></div></div>What Is God's Word (The Bible) Like?https://syndicationexpress.ning.com/profiles/blogs/what-is-god-s-word-the-bible-like2015-12-17T17:53:19.000Z2015-12-17T17:53:19.000ZBill and Teddy Rogershttps://syndicationexpress.ning.com/members/BillandTeddyRogers<div><div class="separator"><a href="http://3.bp.blogspot.com/-fioG_s9Xp1I/VnLTe5rp17I/AAAAAAAABBs/ZUfjiryQVLQ/s1600/God%2527sWord250.jpg"><img src="http://3.bp.blogspot.com/-fioG_s9Xp1I/VnLTe5rp17I/AAAAAAAABBs/ZUfjiryQVLQ/s1600/God%2527sWord250.jpg" border="0" class="align-center" alt="God%2527sWord250.jpg" /></a></div><div class="western" align="justify"><span><span> </span></span></div><div class="western" align="justify"></div><div class="western" align="center"><span><span><b>GOD'S WORD IS LIKE A FIRE</b></span></span></div><div class="western" align="justify"></div><div class="western" align="justify"><span><span><b>Jeremiah 5:14 (NASB) says</b></span></span> <span><span>“</span></span><span><span>Therefore, thus says the Lord, the God of hosts, because you have spoken this word, behold, I am making My words in your mouth</span></span> <span><span><b>fire</b></span></span><span><span>, and this people wood, and it will consume them.”</span></span></div><div class="western"></div><div class="western" align="center"><span><span><b>GOD'S WORD IS LIKE A SWORD</b></span></span></div><div class="western" align="justify"></div><div class="western" align="justify"><a href="https://www.blogger.com/null" name="en-NASB-30027" id="en-NASB-30027"></a> <span><span><b>Hebrews 4:12 (NASB) says</b></span></span> <span><span>“</span></span><span><span>For the word of God is living and active and sharper than any two-edged</span></span> <span><span><b>sword</b></span></span><span><span>, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart.”</span></span></div><div class="western" align="justify"></div><div class="western" align="justify"><span><span><a href="http://www.primelifeministries.com/2015/12/what-is-gods-word-bible-like_17.html" target="_blank">CONTINUE READING: What Is God's Word (The Bible) Like?</a><br /></span></span></div></div>Six Must-Have Items In Your Carry On Baghttps://syndicationexpress.ning.com/profiles/blogs/six-must-have-items-in-your-carry-on-bag2013-12-27T03:29:14.000Z2013-12-27T03:29:14.000ZJack McLaughlin (JMAC)https://syndicationexpress.ning.com/members/JackMcLaughlinJMAC<div><h2>Medications and Basic Toiletries</h2><p></p><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/toiletries-medicine-carry-on.png" alt="toiletries-medicine-carry-on.png (215143 bytes)" width="398" height="276" /><br /><br /><br /><br /></div><div class="slideshowCaption"><p style="font-size:14px;"><span style="font-weight:bold;">Always keep prescription medications in your carry-on. As for liquid medications, as long as you declare them to the TSA security checkpoint agent, they're permitted in reasonable quantities exceeding 3.4 ounces, and they don't have to be placed in the zip-top plastic bag with other liquids, aerosols and gels. I also pack some aspirin, a few basic toiletries (toothbrush, travel-size toothpaste and the like) and, to combat the dry-as-the-Sahara cabin air, lip balm and saline nasal spray.</span></p></div><h2>Reading Material</h2><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/Woman-Reading.jpg" alt="Woman-Reading.jpg (25893 bytes)" width="398" height="309" /><br /><br /><br /></div><div class="slideshowCaption"><p style="font-size:14px;"><span style="font-weight:bold;">I always make sure my carry-on has reading material, whether it's magazines, newspapers or a book. Increasingly I rely on my e-reader, which under a recent FAA rule change no longer has to be switched off during takeoff and landing. But whether you're a reader or a player of cards or games, the point is to include some easily packed entertainment in your carry-on.</span></p><h2>Something to Keep You Warm</h2><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/blankets-stay-warm-travel-items.jpg" alt="blankets-stay-warm-travel-items.jpg (54570 bytes)" width="396" height="274" /><br /><br /><br /></div><div class="slideshowCaption"><p style="font-size:14px;"><span style="font-weight:bold;font-size:14px;">Have you ever sat under an air conditioning vent on an airplane? It can get a little chilly. Bring aboard a light jacket or sweater for shorter flights and a travel blanket for longer ones. But if you opt to take up valuable space in your carry-on with an extra garment to keep warm during the flight, make sure it's also something you'll wear during</span> <span style="font-weight:bold;font-size:14px;">the trip.</span></p><h2>Food</h2><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/food-snack-airplane-items-carry-on.jpg" alt="food-snack-airplane-items-carry-on.jpg (48299 bytes)" width="397" height="274" /><br /><br /><br /></div><div class="slideshowCaption"><p style="font-size:14px;"><span style="font-weight:bold;">Unless you enjoy the overpriced boxes of processed food that pass for a meal these days in coach cabins, pack your own snacks in your carry-on. Bring at east a little something to snack on during the in-flight beverage service, or in the boarding lounge during long delays. Ratchet that up to a nice, fat sandwich, fruit and cookies if you're flying during mealtimes.</span></p><h2>Printouts of Important Documents</h2><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/printed-travel-documents-items-carry-on..jpg" alt="printed-travel-documents-items-carry-on..jpg (27023 bytes)" width="399" height="275" /><br /><br /><br /></div><div class="slideshowCaption"><p style="font-size:14px;"><span style="font-weight:bold;">Even in this era of making online travel arrangements and loading boarding passes onto smartphones, there's still a place for paper. Take printouts of your air itinerary (showing reservation or locator number), hotel confirmation, car rental reservation and other important travel documents and put it in your carry-on bag. If there's a problem, it's often a lot easier to consult a piece of paper — or to show one to an airline, hotel or rental car employee — than to pull up a document on an electronic device.</span></p><h2>Chargers for Electronics</h2><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/chargers-electronics-travel-items-carry-on.jpg" alt="chargers-electronics-travel-items-carry-on.jpg (28160 bytes)" width="396" height="274" /><br /><br /><br /></div><div class="slideshowCaption"><p><span style="font-size:14px;"><span style="font-weight:bold;"><span style="font-size:14px;">Don't find yourself rationing battery use. Stash charging cords in your carry-on for phones, tablets and any other electronic device you might conceivably need, either at the airport waiting for a flight or after arriving at your destination.</span></span></span></p><h2>Change of Clothes/Undergarments</h2><p></p><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/undergarments.png" alt="undergarments.png (415971 bytes)" width="393" height="463" /></div><p></p><p style="font-size:14px;"><b>Last but not least, don't find yourself without a change of clothes and or undergarments. You'll kick yourself if your luggage is misplaced, stolen or lost. When I was in the Boy Scouts, our Moto was: "Always Be Prepared". Take heed.</b></p><p>*****************************************************************</p><p style="font-size:18px;"><b><i><font color="#0000CD">Wherever you may be flying to or just taking a road trip this holiday season, I hope your trip is a safe and enjoyable one. Have fun.</font></i></b></p><div align="center"><img src="http://www.Your-Daily-Income.com/ibotoolbox/PRimages/traveldestinationsjpg.jpg" alt="traveldestinationsjpg.jpg (53906 bytes)" width="397" height="276" /></div><p style="font-size:18px;"></p></div></div></div></div></div><div style="text-align:center;"><p>*********************************</p><p><b><big>Start making Money</big></b> <b><i><font color="#FF0000">FAST!</font></i></b><br /><br /><span style="font-size:16px;"><span style="font-size:16px;"><b><a target="_blank" href="http://yougetpaidfast.com/jmacc/SP8.html">Get All The Juicy Details Here:</a></b></span></span><br /><br /><br />*********************************</p></div><p align="center"><big>~Like or Share if you enjoyed this post~</big></p><p align="center"><span style="color:#4682b4;"><strong>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</strong></span><br /><br /></p><div><p align="center"><big>Regards and Blessings to you,</big><br /><br /><span style="font-size:16px;"><big>Jack McLaughlin</big></span> <span style="font-weight:bold;">(JMAC)</span><br /><br /></p><p align="center"><a href="http://www.your-daily-income.com"><img src="http://www.Your-Daily-Income.com/images/ydi%20banner250x250.png" alt="ydi banner250x250.png (115478 bytes)" border="0" width="247" height="246" /></a></p></div><p style="font-size:16px;" align="center"><span style="color:#4682b4;"><strong><span style="font-size:16px;font-weight:bold;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></strong></span></p><p align="center">Follow Me:</p><dl><dd><br /><p align="center"><big><font face="Verdana"><span style="font-size:16px;"><span style="font-size:16px;"><a href="http://www.facebook.com/YourDailyIncome"><img alt="Facebook.png (2174 bytes)" src="http://www.your-daily-income.com/images/Facebook.png" border="0" width="37" height="37" /></a><a href="https://plus.google.com/101676442129130661667"><img alt="GooglePlus.png (2606 bytes)" src="http://www.your-daily-income.com/images/GooglePlus.png" border="0" width="37" height="37" /></a><a href="http://www.linkedin.com/pub/jack-mclaughlin/2a/685/404"><img alt="LinkedIn.png (2444 bytes)" src="http://www.your-daily-income.com/images/LinkedIn.png" border="0" width="37" height="37" /></a><a href="https://myspace.com/yourdailyincome"><img alt="MySpace.png (2658 bytes)" src="http://www.your-daily-income.com/images/MySpace.png" width="37" height="37" /></a><a href="http://www.pinterest.com/pinterestjmac/"><img alt="Pinterest.png (1952 bytes)" src="http://www.your-daily-income.com/images/Pinterest.png" border="0" width="37" height="37" /></a></span></span></font></big></p></dd></dl><p align="center"><span style="color:#4682b4;"><strong>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</strong></span></p></div>God is Love, Light and Joyhttps://syndicationexpress.ning.com/profiles/blogs/god-is-love-light-and-joy2013-11-16T15:02:51.000Z2013-11-16T15:02:51.000ZRichard Mathiasonhttps://syndicationexpress.ning.com/members/RichardMathiason<div><p style="text-align:center;"><span class="font-size-4"><strong>The Daily Meditation 11.16.2013</strong></span></p><p style="text-align:center;"><span class="font-size-4"><b>God is Love, Light and Joy</b></span></p><p align="center" style="text-align:center;"><span class="font-size-4"><strong>Chea Guilmette, Practitioner II Student</strong></span></p><p><strong><span>There is One Life, One Love, One Presence. This Loving Presence that I call God that is in, through, and around all things. God is the silence of deep space and the song of the wind. God is the depth of the ocean and the peak of the mountain and everything in between. God is everything all at once. There is no where that God is not. God is Love, Light, Joy and so much more.</span></strong></p><p><strong><span>I know that I am one of God, perfect, whole, and complete. I know this to be the Truth about myself, this is who I am. God as I stand, God as I sit, God as I walk, God as I sleep. God above me, below me, to the right and left of me. God at the very center of me. I know that as God is Love, Light, and Joy so too am I.</span></strong></p><p><strong><span>Every day I pay attention to the beauty in and through all things. God’s love and light shine equally on all and my recognition of this mirrors it back to me. I breathe in light and breathe out worry. I breathe in joy and breathe out discord. I breathe in love and send out love in a never ending spiral good. I live in alignment with Goodness and anything unlike it just falls away. I walk through my day in the delicious embrace of love and light knowing all is well.</span></strong></p><p><strong><span>My heart beats out gratitude for this realization of love and beauty. I am so very grateful.</span></strong></p><p><strong><span>And so I release these words into the Law knowing it is already done. It is complete.</span></strong></p><p><strong><span>And so it is.</span></strong><br /><strong><span>Amen</span></strong></p><h1 align="center"><strong><span><strong> <span class="font-size-4">Chea Guilmette is Practitioner II Student</span></strong><span class="font-size-4"> at the Rio Grande Center For Spiritual Living, Albuquerque, New Mexico. </span></span></strong></h1></div>