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:4/27/2015)...  For more than four decades, AUVSI,s Unmanned ... premier worldwide event for the unmanned land, sea, and ... for any local, national, or trade news organization interested ... and current applications of unmanned technologies. The conference will ... billion industry, and how it will soon impact the ...
(Date:4/27/2015)... , Apr. 27, 2015 Profile Solutions, ... control and security systems is pleased to announce that ... as a consultant and member of its scientific advisory ... widely known as a thought leader in technology-enhanced learning ... Technology Group, and has published studies and books focused ...
(Date:4/20/2015)... , April 20, 2015 Huntington Memorial ... Valley to implant a new miniaturized, wireless monitoring sensor ... is the first and only FDA-approved heart failure monitoring ... admissions when used by physicians to manage heart failure. ... that is implanted in the pulmonary artery (PA) during ...
Breaking Biology News(10 mins):UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 2UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 3UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 4UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 5Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 4Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 2Huntington Memorial Hospital Becomes First in the San Gabriel Valley to Offer Patients a New Heart Failure Monitoring Solution 3
... Scripps Research Institute scientists, along with colleagues from the ... physics to deliver one of those research raritiesan unmitigated ... with remarkable accuracy, predicts how bacterial proteins fold and ... described in this week,s Early Edition of the ...
... the holiday season, caribou are also central to the health ... the caribou could soon become endangered ,by threats such as ... by authors from the Wildlife Conservation Society and the World ... Shared Future (Dundurn Press Toronto, $50/29.00), the book highlights the ...
... Public Health recently described studies that support the link between ... aureus (CA MRSA) infections and the Panton Valentine ... is made up of two components - LukF-PV and LukS-PV ... aureus (CA MRSA). In the United States this strain ...
Cached Biology News:New technique is quantum leap forward in understanding proteins 2New technique is quantum leap forward in understanding proteins 3New technique is quantum leap forward in understanding proteins 4Rudolf's kin more than just Santa's ride 2Rudolf's kin more than just Santa's ride 3UT Public Health researchers find link to severe Staph infections 2
(Date:5/20/2015)... , May 20, 2015  Health eCareers, the ... healthcare organizations with job seekers looking for the ... a new mobile and online tool dedicated exclusively ... industry. SHIFT enables employers to quickly ... travel nursing, per diem and other temporary positions, ...
(Date:5/20/2015)... NEW YORK , May 20, 2015 /PRNewswire-USNewswire/ ... announced a leadership gift of $100 million from ... help create a new laboratory building that will ... campus extension. The Marie-Josée and Henry R. Kravis ... over the FDR Drive, spanning approximately three city ...
(Date:5/20/2015)...  Cypher Genomics, Inc., a leading genome informatics ... to apply Cypher,s Coral TM technology to ... response to innovative medicines. The information generated from ... access to the right medicine at the right ... and potentially inform new companion diagnostics.  ...
(Date:5/20/2015)... , May 19, 2015 Research and ... the addition of the "Bone Morphogenetic Proteins ... Fusion, Trauma, Reconstructive and Oral - Maxillofacial) - ... Forecast 2014 - 2022" report to their ... market is studied based on the types of ...
Breaking Biology Technology:Health eCareers Launches SHIFT Mobile and Online Tool to Match Healthcare Employers with Temporary Job Seekers 2Health eCareers Launches SHIFT Mobile and Online Tool to Match Healthcare Employers with Temporary Job Seekers 3The Marie-Josee and Henry R. Kravis Foundation Provides Landmark Gift of $100 Million to The Rockefeller University 2The Marie-Josee and Henry R. Kravis Foundation Provides Landmark Gift of $100 Million to The Rockefeller University 3The Marie-Josee and Henry R. Kravis Foundation Provides Landmark Gift of $100 Million to The Rockefeller University 4Cypher Genomics Collaborates with Celgene Corporation to Identify Novel Genomic Biomarkers 2Global Bone Morphogenetic Proteins Market Industry Analysis 2014 - 2022 2
... single set of chromosomes for the first time in ... technique should allow scientists to better establish the relationships ... contain two sets of chromosomes one set inherited ... information contained in these chromosome sets helps determine how ...
... a global leader in scientific asset management, biomaterial ... third in a series of four Global Sample ... annual Biorepositories Conference on Sept. 19, 2011 in ... multidisciplinary professionals and experts within the biobanking community, ...
... CAMBRIDGE, Mass., Sept. 7, 2011 Sermo , ... in the United States, today announced the launch of ... opportunities for pharmaceutical, biotechnology and life sciences companies to ... programs. Sermo Sponsorship is available on both web and ...
Cached Biology Technology:Scientists create mammalian cells with single chromosome set 2BioStorage Technologies, Inc. to Hold Global Sample Management Benchmarking Symposium in Conjunction With 2011 IIR Biorepositories Conference 2BioStorage Technologies, Inc. to Hold Global Sample Management Benchmarking Symposium in Conjunction With 2011 IIR Biorepositories Conference 3Sermo, Inc. Introduces New Sponsorship Product for Pharma, Biotech and Life Sciences 2Sermo, Inc. Introduces New Sponsorship Product for Pharma, Biotech and Life Sciences 3
... LC Sciences provides a comprehensive epitope ... microarrays synthesized on Paraflo microfluidic chips ... biosensor development. This comprehensive service includes ... assays using sample(s) provided by you, ...
... ,Schistosomal glutathione-S-transferase (GST) is commonly ... proteins in E. coli (1). The GSTTag ... production and in some cases the solubility ... a soluble, properly folded form, GSTTag fusion ...
... used as a fusion partner when expressing ... sequence has been reported to enhance the ... of its fusion partners. When expressed in ... proteins can be purified with immobilized glutathione. ...
... Cell Kit with Medium High quality ready-to-use ... optimized base medium for growth and lineage ... cells generated from E18 fetal rat brain ... tissue-like mixture of in vitro stem/progenitor cells, ...
Biology Products: