Sears Portrait




Well I think I'm almost done my sears portrait, I have to say I'm really happy with her. Starting to understand a little more about subtly and how light plays on the face.

Ryan Shares Two Tattoos by "Brooklyn P"

I often wonder how may Tattoosday encounters would have been lost had my apartment come with its own laundry facilities. I raise this point because, yet again, I met someone cool with tattoos at my local laundromat and he was generous enough to share his ink with us here on Tattoosday.



In fact, Ryan, who is this particular contributor, and I share a common bond, which is that we have both been tattooed by the same artist, Peter Caruso a.k.a. "Brooklyn P," who originally shared his work with us here on the site way back in 2008 here.



Ryan currently has a back piece in progress, but he shared two tattoos from his legs. First, on his right leg, is this work:





This pin-up girl is classic old school Brooklyn ink, based on flash by the legendary artist Tony Polito. Brooklyn P is an admirer of Polito, and even shared a piece that Tony did on him here.



Ryan also has this tattoo of butterflies on his left leg, which is based on a original design by Brooklyn P:





Ryan estimates he has about fifteen tattoos in all.



My tattoo from Brooklyn P is documented here.



Thanks to Ryan for sharing his tattoos with us here on Tattoosday! And thanks again to Brooklyn P, who continues to work hard at keeping that old school style of Brooklyn tattooing alive!





This entry is ©2012 Tattoosday.


If you are reading this on another web site other than Tattoosday, without attribution, please note that it has been copied without the author's permission and is in violation of copyright laws. Please feel free to visit http://tattoosday.blogspot.com and read our original content. Please let me know if you saw this elsewhere so I contact the webmaster of the offending site and advise them of this violation in their Terms of Use Agreement.



Animation about signal amplification (signalling pathways)

http://www.mediafire.com/?n0l30e5b9r3ee43

Repost: Keikikalani

Today my daughter Shayna had her bat mitzvah. In honor of Shayna, and in light of the rabbi commenting on angels and cherubim during the service, my sister Alicia suggested I repost my second tattoo, in honor of my youngest daughter.





You may recognize this from the bottom of the page (or for long-time readers, it once served as the masthead).



This is my second tattoo, inked in July 2005, by Peter Cavorsi at Body Art Studios in Brooklyn. I brought him this art as reference, and he ran with it, customizing it to more closely reflect my younger daughter's blonde hair, and her affinity for Green Day, at the young age of six.

Thanks for reading Tattoosday!



"Bombs Away"


For a fun February giveaway, I have 10 ORIGINAL LIMITED EDITION HANDMADE trading cards available!

This is a First-Come-First-Serve free giveaway...the first 10 NEW followers on Twitter or fans on Facebook will receive a free trading card!

Please follow the directions and qualifications below to receive your free trading card:

1. Become a follower on my Twitter (@JenaiChin) or Facebook Fan (Jenai Chin)
2. Mention on Twitter or Facebook post on my page: "You da bomb"
3. Immediately email your Name & Mailing Address to thetattoogirlnyc@gmail.com

~Must be a NEW follower
~Must send the Tweet/Facebook requested
~Must email me include all mailing information

The first 10 will get one of my ORIGINAL LIMITED EDITION HANDMADE trading cards in the mail! Failure to meet ALL guidelines will be disqualified.

*Trading card image is seen above. Size: 2.5" x 3.5" Ink on Paper.

Regulation of pyruvate oxidation (part 1)

The pyruvate dehydrogenase complex is mainly regulated by two distinct mechanisms: allosteric regulation and reversible covalent modification. Both can act (and act indeed!) at the same time, and there are molecules (activators and inhibitors) involved in both processes simultaneously.
Activators of the pyruvate dehydrogenase complex
- AMP and ADP – AMP and ADP are two molecules that are obtained when ATP is used as a source of chemical energy (ATP can be cleaved either to ADP or AMP). Therefore, both molecules indicate a low energy state, so it makes sense that they function as activators of processes that allow for energy, the catabolic processes. Since the oxidation of pyruvate is part of the catabolism, this process is activated by AMP and ADP.
- CoA – this is one of the cofactors of the enzyme that appears included in the products (pyruvate is both decarboxylated, oxidized and combined with CoA). Thus, as it is one of the molecules that will react with the substrate, its presence activates the enzyme.
- NAD+ – like the molecule of CoA, NAD+ is also used in the reaction, where it appears in the products (in the form of NADH). Furthermore, since the NADH can be used to promote ATP synthesis (in the cellular respiration), where it is oxidized to NAD+, the latter is an indicator of a low energy state in the cell. For all of this, it makes sense that this molecule is an activator of pyruvate oxidation.
- Ca2+ (muscle) – the calcium ion is an important mediator of various cellular responses. One of them is muscle contraction. Therefore, as this ion is an indicator of muscle contraction, which is an ATP-consuming process, it is advantageous for muscle cell that it can be simultaneously used as an activator of catabolism and, in particular of the oxidation of pyruvate. Thus, with the same messenger, muscle performs contraction and activates catabolism.
- Pyruvate – pyruvate is the substrate of the pyruvate dehydrogenase complex, so it makes sense that it can act as an activator.
- Dephosphorylation – complex pyruvate dehydrogenase is active in its dephosphorylated form.

Inhibitors of pyruvate dehydrogenase complex
- ATP – the main goal of catabolism is to produce energy, mainly in the form of ATP. If the cell has already ATP, or NADH (which, as mentioned above, can lead to the production of ATP), catabolism is inhibited.
- Acetyl-CoA – this is the product of the reaction, so it is natural that it has an inhibitory role in the process.
- Long chain fatty acids - some fatty acids, particularly those with long chains, can act as inhibitors of this reaction.
- Phosphorylation - pyruvate dehydrogenase complex is inactivated by reversible phosphorylation.
.

Cleaning Out the Inbox - Post-Valentine's Day February Edition

Occasionally I will post a handful of items that came my way, in one form or another, that may be of interest to our readers.



For example, the other day my mother-in-law gave me a clipping from the New York Daily News that appeared back on Sunday, November 2011.






TODD MAISEL/NEW YORK DAILY NEWS

Michael McLeer of Brooklyn Made Tattoo on 93rd St. in Bay Ridge, Brooklyn, designed the label for the new Beaujolais Nouveau and has his vintage 1976 Cadillac decorated the same way.



Readers of Tattoosday and/or residents of Bay Ridge, Brooklyn, where we are based, will recognize "Kaves," as he is known. I first encountered his work back in 2008 here and, last May, he shared a piece on his own canvas, a portrait by Mark Mahoney here


Kaves is a true artist  on multiple fronts, and the photo above showcases his latest project, a wine label he designed. Read more about him and his Beaujolais in the full article here
~


Check out this tattoo-themed wallpaper:





So it's not Valentine's Day any more, but it's still pretty cool. You can grab this on the fFurious website here: http://ffurious.com/index.html?latest.html


~


Speaking of Valentine's Day, I missed the opportunity to post this love-related tattoo video. Needles and Sins beat me to it, but I'll share it anyway.






That's from Brooklyn comedian Boris Khaykin. Pretty funny!



~



Normally, I like to stay positive on Tattoosday, so I've avoided posting all those "10 worst tattoos" lists and other such web features that mock the less-fortunate in the inked nation. However, this link, is actually pretty clever. It's called "10 Horrible and Unexpected Tattoo Consequences" and can be read here. Writer Molly Mahan elicited several chuckles from this here jaded inkblogger. Besides, you can learn a bit about " the first case of nonischemic priapism following penile tattooing". That's worth the price of admission right there.



~





This entry is ©2012 Tattoosday.


If you are reading this on another web site other than Tattoosday, without attribution, please note that it has been copied without the author's permission and is in violation of copyright laws. Please feel free to visit http://tattoosday.blogspot.com and read our original content. Please let me know if you saw this elsewhere so I contact the webmaster of the offending site and advise them of this violation in their Terms of Use Agreement.

















Lady TaTa


Inspired by the hypnotic elegance from the women of the 1920's, I created this fancy lady for a client looking to start a vintage tattoo sleeve. After spending a quiet weekend completing the drawing and receiving her final approval I gave her the crowning title Lady TaTa.

Ivan Shares an Amazing David Sena Tattoo

This post is a straggler from 2011 and readers may wonder why it took so long to appear here on the site.



First, take a gander:





Pretty cool, isn't it?



Unfortunately, I don't have a lot of information on it, as I snapped this on the subway one evening last June, and I wasn't able to record a lot of details. This is what I do know: the host of this tattoo is Ivan, and the piece  took 2 sessions and approximately 15 hours to complete. The talented artist behind this is David Sena from North Star Tattoo in New York City.



The detail in the piece is wonderful:





And the scale of the tattoo as it wraps around the arm is impressive:





Unfortunately, there's not much more I can provide in terms of what went into the work, but the quality of the tattoo speaks for itself.



Thanks to Ivan for allowing me to snap these shots on the subway and consenting to sharing them here on Tattoosday!





This entry is ©2012 Tattoosday.


If you are reading this on another web site other than Tattoosday, without attribution, please note that it has been copied without the author's permission and is in violation of copyright laws. Please feel free to visit http://tattoosday.blogspot.com and read our original content. Please let me know if you saw this elsewhere so I contact the webmaster of the offending site and advise them of this violation in their Terms of Use Agreement.



The turtle



Well I finally sold my mammoth turtle. I'll miss her but I'm proud that she is out there where she can be enjoyed by other people, besides just by me.

Game about protein folding

http://fold.it/portal/node/988864

Dmitry's Sleeve and Invader Zim

We still have a handful of posts from 2011, including this one, which features a sleeve from a guy named Dmitry who I met in Penn Station back in July. Take a look:





This sleeve is a collaborative effort with Dmitry and his tattoo artist, Gene Coffey, from Tattoo Culture in Williamsburg, Brooklyn.



He explained that he has spent a long time working on it, and that it is based on a animated series called Invader Zim, which was created by Jhonen Vasquez and originally aired in 2001.



Dmitry told me "I've always been a big fan of [the show] and I've always loved the artwork." He brought Gene "a few pictures from the show and we put together the piece".



The sleeve starts on the upper arm, featuring Zim at the very top,





The bottom section of the sleeve features other characters from the show, as well.





The back of the lower section of the arm has this illustration:





There's a whole catalog of the characters from the show listed here. I'd venture to try and identify every one seen in Dmitry's canvas, but I would most likely misname one or two. He told me the show has achieved a kind of cult following so, if any fans would like to add comments below, feel free to do so.



Thanks to Dmitry for sharing his fantastic tattoo sleeve with us here on Tattoosday!





This entry is ©2012 Tattoosday.


If you are reading this on another web site other than Tattoosday, without attribution, please note that it has been copied without the author's permission and is in violation of copyright laws. Please feel free to visit http://tattoosday.blogspot.com and read our original content. Please let me know if you saw this elsewhere so I contact the webmaster of the offending site and advise them of this violation in their Terms of Use Agreement.
 



Jon Paul's Three Cities

Last August, I met Jon Paul,  writer and content producer for the web site Poptimistic (http://www.poptimistic.com). He shared this tattoo, one of three he has, from his upper right arm:





Jon Paul's focus on Poptimistic is travel and food. He credits the work to the artist Friday Jones, who does custom tattoo work out of Senses New York Salon & Spa in the Flat Iron District. I mentioned Ms. Jones back on Tattoosday in 2009 here.



Jon Paul explained that he originally met Ms. Jones in New Orleans when she did "the very first tattoo [he] got ... the compass that the rest of the tattoo is built around." About a year later, he elaborated, "I went back to her and said, 'Now I want you to build a whole piece around my three favorite spots in the world.' So she designed it custom from that." She did it over three sessions.



Represented among Jon Paul's three favorite places are New York City, where he calls home:





The Big Apple is represented by the Statue of Liberty and by the iconic Art Deco style of the landmark Chrysler Buillding.



Paris is represented by the Eiffel Tower:





Sydney, Australia is represented by it's recognizable Opera House:





Jon Paul said " Sydney I love just for the sheer beauty of it and the people ... are lovely." Jon Paul elaborates further on why he loves Australia in this post, which includes another photo of his tattoo.



Thanks to Jon Paul for sharing his tattoo with us here on Tattoosday!





This entry is ©2012 Tattoosday.





If you are reading this on another web site other than Tattoosday, without attribution, please note that it has been copied without the author's permission and is in violation of copyright laws. Please feel free to visit http://tattoosday.blogspot.com and read our original content. Please let me know if you saw this elsewhere so I contact the webmaster of the offending site and advise them of this violation in their Terms of Use Agreement.