Melanin Creates the Beautiful Blue Color of Blue-Black Grassquit Feathers

The color of the blue-black grassquit feathers’ comes from melanin, which reflects a blue color in ultraviolet light.

Resouce/Energy/Information Transmission & Production:: Color changing

Defense/Stability:: Light control

Resource saving

Rafael Maia et al., Iridescent structural colour production in male blue-black grassquit feather barbules: the role of keratin and melanin, J. R. Soc. Interface, 6, S203-S211, 2009

The reflective feature of melanin has been used to develop thin films that mimic the shiny, blue color of the blue-black grassquit feathers.

This feature can be applied to develop clothes with colors that shine in the sunlight, and that will not fade after multiple washings. Advertising signs can also be developed to utilize sunlight instead of electricity.

History
+ –
Request History
4 previous requests available
====
Session
+ –
Session
- Config
  userAgent146b278961f0b80dc105e136efd48481
  time1735296559
  timeout10
====
Request
+ –
Request

Cake Params
- controllercontents
- actionview
- named(empty)
- pass
  081
- plugin(null)
- form(empty)
- url
  urlcontents/view/81
- isAjax(false)
$_GET
- urlcontents/view/81
Cookie
- 0(empty)
Current Route
- keys
  0controller
  1action
- options(empty)
- defaults
  plugin(null)
  actionindex
- template/:controller/:action/*
- _greedy(true)
- _compiledRoute#^/(?:([^/]+))/(?:([^/]+))(?:/(?P<_args_>.*))?[/]*$#
- __headerMap
  typecontent_type
  methodrequest_method
  serverserver_name
====

Sql Log

+ –

Sql Logs

default

Query	Affected	Num. rows	Took (ms)	Actions
SHOW FULL COLUMNS FROM `contents`	16	16	3	maybe slow
SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= 'utf8_general_ci';	1	1	1
SHOW FULL COLUMNS FROM `users`	10	10	2	maybe slow
SHOW FULL COLUMNS FROM `groups`	4	4	2	maybe slow
SHOW FULL COLUMNS FROM `permissions`	5	5	2	maybe slow
SHOW FULL COLUMNS FROM `groups_permissions`	3	3	2	maybe slow
SHOW FULL COLUMNS FROM `groups_users`	3	3	2	maybe slow
SHOW FULL COLUMNS FROM `contents_searches`	6	6	2	maybe slow
SHOW FULL COLUMNS FROM `attachments`	11	11	2	maybe slow
SHOW FULL COLUMNS FROM `attachments_revs`	13	13	3	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items`	5	5	2	maybe slow
SHOW FULL COLUMNS FROM `related_items`	6	6	2	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items_revs`	8	8	10	maybe slow
SHOW FULL COLUMNS FROM `contents_tags`	5	5	2	maybe slow
SHOW FULL COLUMNS FROM `tags`	7	7	14	maybe slow
SHOW FULL COLUMNS FROM `tag_groups`	6	6	2	maybe slow
SHOW FULL COLUMNS FROM `contents_tags_revs`	7	7	10	maybe slow
SHOW FULL COLUMNS FROM `contents_revs`	18	18	11	maybe slow
SELECT `Content`.`id`, `Content`.`user_id`, `Content`.`last_edit_user_id`, `Content`.`post_date`, `Content`.`post_date_year`, `Content`.`post_date_month`, `Content`.`post_date_day`, `Content`.`title`, `Content`.`title_en`, `Content`.`content`, `Content`.`plain_content`, `Content`.`page_view`, `Content`.`flag`, `Content`.`mod_count`, `Content`.`created`, `Content`.`modified` FROM `contents` AS `Content` WHERE `id` = 81 LIMIT 1	1	1	0
SELECT `Attachment`.`file_name`, `Attachment`.`dir`, `Attachment`.`model`, `Attachment`.`foreign_key` FROM `attachments` AS `Attachment` WHERE `file_name` <> 'default.jpg' AND `Attachment`.`foreign_key` = (81)	1	1	0
SELECT `ContentsRelatedItem`.`content`, `ContentsRelatedItem`.`related_item_id`, `ContentsRelatedItem`.`content_id` FROM `contents_related_items` AS `ContentsRelatedItem` WHERE `ContentsRelatedItem`.`content_id` = (81)	12	12	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 1	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 2	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 5	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 6	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 7	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 8	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 4	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 11	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 12	1	1	0
SELECT `ContentsTag`.`id`, `ContentsTag`.`tag_group_id`, `ContentsTag`.`mod_count`, `ContentsTag`.`tag_id`, `ContentsTag`.`content_id` FROM `contents_tags` AS `ContentsTag` WHERE `ContentsTag`.`content_id` = (81)	3	3	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 20	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 2	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 78	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 6	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 98	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 7	1	1	0
SELECT `RelatedItem`.`id`, `RelatedItem`.`code`, `RelatedItem`.`name`, `RelatedItem`.`created`, `RelatedItem`.`modified`, `RelatedItem`.`flag` FROM `related_items` AS `RelatedItem` WHERE `code` = 'function' LIMIT 1	1	1	0
SELECT `Content`.`id`, `Content`.`title`, `Content`.`title_en` FROM `contents` AS `Content` WHERE id = (NULL) ORDER BY `id` desc	0	0	0

Query Explain:

Click an "Explain" link above, to see the query explanation.

====

Timer

+ –

Memory

Peak Memory Use 8.99 MB

Message	Memory use
Component intitailization	6.79 MB
Controller action start	6.83 MB
Controller render start	6.90 MB
View render complete	7.93 MB

Timers

Total Request Time: 1124 (ms)

Message	Time in ms	Graph
Core Processing (Derived)	614.15
Component initialization and startup	22.69
Controller action	52.56
Render Controller Action	75.28
» Rendering View	69.89
» » Rendering APP/views/contents/view.ctp	34.58
» » Rendering APP/views/layouts/default.ctp	24.82
» » » Rendering APP/views/elements/header.ctp	1.82
» » » Rendering APP/views/elements/content_sidebar.ctp	0.63
» » » Rendering APP/views/elements/footer.ctp	0.46

====

Log
+ –

Logs

====
Variables
+ –
View Variables
- content
  contentsTags
  0
  id1574
  tag_group_id2
  mod_count3
  tag_id20
  content_id81
  Tag
  nameColor changing
  comment(null)
  tag_group_id2
  TagGroup
  coderes_prod
  nameResources/Energy/Information Transmission or Production
  1
  id1575
  tag_group_id6
  mod_count3
  tag_id78
  content_id81
  Tag
  nameLight control
  comment(null)
  tag_group_id6
  TagGroup
  codedefense
  nameResistance/Stability
  2
  id1576
  tag_group_id7
  mod_count3
  tag_id98
  content_id81
  Tag
  nameResource saving
  comment(null)
  tag_group_id7
  TagGroup
  codeenv_sol
  nameEnvironmental Solution Classification
  attachments
  0
  file_nameMQ==.jpeg
  dirimg/Content/81
  modelContent
  foreign_key81
  contentsRelatedItems
  function
  0The color of the blue-black grassquit feathers’ comes from melanin, which reflects a blue color in ultraviolet light.
  ref_info
  0Rafael Maia et al., Iridescent structural colour production in male blue-black grassquit feather barbules: the role of keratin and melanin, J. R. Soc. Interface, 6, S203-S211, 2009
  reg_num
  0
  appl_tech
  0The reflective feature of melanin has been used to develop thin films that mimic the shiny, blue color of the blue-black grassquit feathers.
  product
  0
  appl_tech_sugg
  0This feature can be applied to develop clothes with colors that shine in the sunlight, and that will not fade after multiple washings. Advertising signs can also be developed to utilize sunlight instead of electricity.
  img_exp
  0Blue-black grassquit. Photo by <a href="http://www.flickr.com/photos/dariosanches/" target="_blank">Dario Sanche</a> / <a href="http://creativecommons.org/licenses/by-sa/2.0/" target="_blank">CC BY-SA 2.0</a><br /><span style="font-size:80%;">From the Amazing Nature Database.</span>
  1
  2
  reg_info
  0
  related_content_id
  0
  related_ls_id
  0
  properties
  id81
  user_id1
  last_edit_user_id1
  post_date2011-02-04
  post_date_year
  post_date_month
  post_date_day
  titleMelanin Creates the Beautiful Blue Color of Blue-Black Grassquit Feathers
  title_en
  content
  plain_content
  page_view0
  flag1
  mod_count3
  created2011-02-04 18:24:41
  modified2012-03-16 13:09:42
- related_contentsArray
- Auth(null)
- $this->data(null)
- $this->validationErrors(empty)
- Loaded Helpers
  0simpleGraph
  1number
  2htmlToolbar
  3toolbar
  4navi
  5layout
  6session
  7form
  8contentElement
  9javascript
  10html
====

Melanin Creates the Beautiful Blue Color of Blue-Black Grassquit Feathers

Request History

Session

Request

Cake Params

$_GET

Cookie

Current Route

Sql Logs

default

Query Explain:

Memory

Timers

Logs

View Variables