Navigation Links
Stem cells grown in lab mirror normal developmental steps

Assistant Professor Mark Pagani in the Department of Geology and Geophysics at Yale and his colleagues mapped the first detailed history of atmospheric carbon dioxide between 45 - 25 million years ago based on stable isotopes of carbon in a National Science Foundation study reported in Science Express.

"Through the energy we consume, each of us makes a contribution to increasing greenhouse gasses, such as carbon dioxide and methane, in the Earth's atmosphere," said Pagani. "To understand the implications of these actions for the future, scientists look to the past to gain a better understanding of Earth's climate system under high greenhouse gas conditions." The findings were based on calibration of carbon-containing compounds produced by ancient sea surface algae that were recently isolated in deep sea drill cores.

The data indicates that between 45 - 34 million years ago the atmospheric carbon dioxide level was up to five times greater than today, with a sharp decrease and then stabilization to near modern day levels between 34 - 25 million years ago.

During the early part of the Paleogene Period, from 65 - 34 million years ago, global climates were much warmer than today with very little ice present at the poles. The boundary of the Oligocene and Eocene Epochs 33.7 million years ago was marked by rapid global cooling and the formation of large continental ice sheets on the Antarctic.

"Before this study, the relationship between the global climate and the concentration of carbon dioxide in the atmosphere during the late Eocene and Oligocene was largely unknown," said Pagani, who is recognized for his reconstruction of past atmospheric carbon dioxide levels between 25 million and eight million years ago.

They also present intriguing evidence that the sharp drop in carbon dioxide level, between 33 - 25 million years ago, prompted the origin of economically important land plants that are sensitive to atmospheric carbon dioxide l
'"/>

Source:


Page: 1 2

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. Spleen may be source of versatile stem cells
3. Researchers discover way to make cells in the eye sensitive to light
4. Priming embryonic stem cells to fulfill their promise
5. Lack of enzyme turns fat cells into fat burners
6. Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas
7. Elusive HIV shape change revealed; Key clue to how virus infects cells
8. Mouse brain cells rapidly recover after Alzheimers plaques are cleared
9. Enzyme allows B cells to resist death, leading to leukemia
10. Scientists rid stem cell culture of key animal cells
11. Genetically modified natural killer immune cells attack, kill leukemia cells
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Stem cells grown lab mirror normal developmental steps

(Date:5/20/2013)... University of Minnesota Medical School researchers from the ... the University,s Brain Tumor Program, have developed a new ... that allow them to discover new genes and gene ... was published this week in the journal Nature ... researchers in the lab of David Largaespada, Ph.D., professor ...
(Date:5/20/2013)... DIEGO (May 20, 2013) - A novel ... headline the groundbreaking research that will be unveiled at ... Conference (NBC). The meeting takes place Monday, May 20 ... Hotel and Marina. , "The main goal of ... fight against a pathogen that causes the disease", explained ...
(Date:5/19/2013)... Davis have engineered a strain of photosynthetic cyanobacteria to ... their findings today at the 113th General Meeting of ... we used synthetic biology approaches to probe and rewire ... for growth) cyanobacterial metabolism for the ability to grow ... on the study. He is part of Shota ...
Breaking Biology News(10 mins):U of M researchers develop model for better testing, targeting of MPNST 2Germ-fighting vaccine system makes great strides in delivery 2
... Market, Stantum,s SMK Series Will Let Vendors, ... SAN DIEGO, Sept. 23 Stantum Technologies,( ... today introduced a demo, evaluation and development board ... lets,users simultaneously move an unlimited number of fingers, ...
... 2008 A new study finds that environmental restoration ... study, published in Restoration Ecology, maintains that ... practice, more research should be done on whole ecosystems ... taking advantage of large restoration sites by conducting large-scale ...
... aromatase inhibitors to treat breast cancer or prevent its ... dietary supplement, researchers report. Genistein, a soy isoflavone ... can negate the effectiveness of aromatase inhibitors, which are ... promote tumor growth in some types of breast cancer. ...
Cached Biology News:Stantum Offering Demo, Evaluation & Development Board Based on Its Patented Resistive Multi-Touch Technology 2Lack of large-scale experiments slows progress of environmental restoration 2The dietary supplement genistein can undermine breast cancer treatment 2The dietary supplement genistein can undermine breast cancer treatment 3
(Date:5/21/2013)... Custom Learning Designs, Inc.(CLD) unveils the ... Tin Can API combined with its own proprietary ... leading developer of training content and solutions for ... , Tin Can API is a cost-effective learning ... more accurately measure the Return on Education (ROE) ...
(Date:5/21/2013)... ISTANBUL , May 21, 2013 ...  European Dialysis and Transplant Association) is the biggest congress ... renal replacement therapy. Nearly 10,000 participants are in ... discuss the latest research findings. New pioneering studies have ... al. "SOLUBLE FERRIC PYROPHOSPHATE (SFP) ADMINISTERED VIA HEMODIALYSATE REDUCES ...
(Date:5/21/2013)... 21, 2013 According to a ... http://www.transparencymarketresearch.com ) "Biochip Products and Services Market (Microarrays, Reagents, ... Analysis, Size, Share, Growth, Trends and Forecast, 2012 - 2018," the market ... is expected to grow at a CAGR of 10.1% ... of USD 4.7 billion in 2018. Browse ...
(Date:5/21/2013)...  MacroGenics, Inc. today announced that an abstract ... Fc-modified chimeric monoclonal antibody (MAb), in patients with ... be presented at the 2013 Annual Meeting of ... Developmental Therapeutics - Immunotherapy Oral Abstract Session on ... The presentation will describe the results of a ...
Breaking Biology Technology:CLD Integrates Tin CAN API with its eLearning Solutions and Launches its Excelerometer Tracking Statement Dashboard 2CLD Integrates Tin CAN API with its eLearning Solutions and Launches its Excelerometer Tracking Statement Dashboard 3ERA-EDTA CONGRESS 2013: Late Breaking Clinical Trials 2ERA-EDTA CONGRESS 2013: Late Breaking Clinical Trials 3The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 2The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 3The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 4The U.S. Biochip Products and Services Market is Expected to Reach USD 4.7 Billion in 2018: Transparency Market Research 5MacroGenics Announces Margetuximab (MGAH22) Phase 1 Data Presentation at ASCO; Initiates Phase 2 Clinical Study to Evaluate Activity of Margetuximab in Patients with Metastatic Breast Cancer 2MacroGenics Announces Margetuximab (MGAH22) Phase 1 Data Presentation at ASCO; Initiates Phase 2 Clinical Study to Evaluate Activity of Margetuximab in Patients with Metastatic Breast Cancer 3
... Campbell Alliance, the,leading management consulting firm specializing in ... Managed Markets Practice will,take a leadership role at ... Modeling Strategies hosted by the Center for Business,Intelligence ... 10 through 11 at,the Doubletree Hotel in Philadelphia, ...
... Biology 2008 Meeting, SAN DIEGO, April 3, ... Biothera, reduced the incidence of fever,and eliminated the ... school due to,the cold-like symptoms, researchers reported today ... Cox, Ph.D., Vice President of Research & Development ...
... by over ... 100%, year-over-year, ... ), manufacturer and marketer of state-of-the-art cardiac,surgery products and services, ... (Logo: http://www.newscom.com/cgi-bin/prnh/20040202/ATSILOGO ), The Company currently expects ...
Cached Biology Technology:Campbell Alliance Managed Markets Practice to Take a Leadership Role at the CBI Forum on Effective Product Pricing and Modeling Strategies 2Campbell Alliance Managed Markets Practice to Take a Leadership Role at the CBI Forum on Effective Product Pricing and Modeling Strategies 3Wellmune WGP(R) Supplementation Alleviates Duration, Severity and 'Down Time' Due to Cold Symptoms 2Wellmune WGP(R) Supplementation Alleviates Duration, Severity and 'Down Time' Due to Cold Symptoms 3ATS Medical Expects First Quarter Revenue of $14.6 to $14.8 Million 2ATS Medical Expects First Quarter Revenue of $14.6 to $14.8 Million 3