Navigation Links
Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers
Date:2/22/2013

ial within the bars, islands and floodplains that define their morphology. The world's largest rivers are characterized by remarkable variety in form and behavior (e.g., width, depth, number of channels, bar and island stability), which remain poorly understood. This study by Andrew Nicholas applies a new numerical model of water flow and sediment transport to show how the morphology of large sand-bed rivers is influenced by bed sediment mobility, bank erodibility, and rate of floodplain development. Simulations demonstrate that a wide range of river styles, including meandering, anabranching, and braiding, can occur over a relatively narrow range of environmental conditions. Results highlight the suspension of bed material as a key control on river morphology, which promotes an inverse relationship between bed sediment mobility and the degree of channel branching. Moreover, high mobility of bed and bank sediments is hypothesized to favor contrasting river styles, although both may be promoted by increasing river gradient. These results explain the inability of existing theory to predict the morphology of the world's largest rivers, and highlight the potential for investigating river-floodplain co-evolution using physics-based simulation models.


The fossil record of insect color illuminated by maturation experiments
Maria E. McNamara et al., School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK. Posted online 20 Feb. 2013; http://dx.doi.org/10.1130/G33836.1.

Structural coloration underpins communication strategies in many insects alive today, but its evolution is poorly understood. This stems, in part, from limited data on how color alters during fossilization. Maria E. McNamara and colleagues resolve this by using elevated pressures and temperatures to simulate the effects of burial on structurally colored cuticles of modern beetles. These expe
'/>"/>

Contact: Kea Giles
kgiles@geosociety.org
Geological Society of America
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11

Related biology news :

1. University of Colorado and Orphan Technologies sign agreement
2. Bees attracted to contrasting colors when looking for nectar
3. Colorado Marijuana Task Force Gives Green Light To "Pot Tourism"
4. Study shows that diet of resistant starch helps the body resist colorectal cancer
5. Lakewood High School wins Colorado Science Bowl
6. Eating bright-colored fruits and vegetables may prevent or delay ALS
7. Bioinspired fibers change color when stretched
8. Cup color influences the taste of hot chocolate
9. Dance of water molecules turns fire-colored beetles into antifreeze artists
10. 3 new genetic links to colorectal cancer
11. Le Rouge et le Noir: Where the black dahlia gets its color
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/1/2015)... Sept. 1, 2015  Automation and pre-processing are ... passenger screening. This is the first step toward ... will become unintrusive. An assortment of portal scanners, ... background investigations will transform the passenger screening process. ... Global Airport Passenger Screening Market ( ...
(Date:8/31/2015)... , August 31, 2015 Growing ... technology in government digitization projects to drive India ... recently published TechSci Research report, " India Biometrics Market Forecast ... is projected to grow at a CAGR of ... is anticipated on account of extensive use of biometric technology ...
(Date:8/31/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/st5b3m/saudi_arabia ) ... Biomedical Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... Saudi Arabia Biomedical Sensors market is estimated at $0.23 ... the period 2014-2020 The near future will ... formulation of each individual. These sensors can be set ...
Breaking Biology News(10 mins):The Future of Airport Security: Passenger Screening Transitioning Into an Invisible Process 2The Future of Airport Security: Passenger Screening Transitioning Into an Invisible Process 3The Future of Airport Security: Passenger Screening Transitioning Into an Invisible Process 4India Biometrics Market to Grow at Over 35% Through 2020, Says TechSci Research 2India Biometrics Market to Grow at Over 35% Through 2020, Says TechSci Research 3Saudi Arabia Biomedical Sensors Market Report 2015 - Growth, Trends & Forecasts (2014-2020) 2
... rate of chemical processes in cells is dictated by the ... reaction. Using a versatile method developed at the Institute of ... researchers were able to predict for the first time the ... The achievement is important not only for biologists and chemists, ...
... of the range and habits of white-backed vultures across ... preferring to forage further afield on private farmland. ... means that vultures risk encountering dead cattle that have ... or even poisoned carcasses intended to control other carnivores ...
... damage is closer following research by scientists at Monash University. ... the Australian Regenerative Medicine Institute at Monash University are closer ... They have, for the first time, derived and purified lens ... the eye develops. The purity of the cells paves the ...
Cached Biology News:Biologistics: How fast do chemical trains move in living cells? 2Biologistics: How fast do chemical trains move in living cells? 3Vultures foraging far and wide face a poisonous future 2Vultures foraging far and wide face a poisonous future 3'Petri dish lens' gives hope for new eye treatments 2
(Date:9/1/2015)... , Sept. 1, 2015 The American Brain ... (LOI) for its Discovery Research Grant program. LOIs are ... 12:00 noon CDT. Discovery Grants are one-year, ... the potential to change current diagnostic or treatment paradigms ... specifically encourage novel research at its earliest stages, in ...
(Date:9/1/2015)... N.J. , Sept. 1, 2015  ContraVir Pharmaceuticals, ... on the development and commercialization of targeted antiviral therapies, ... & Renshaw 17 th Annual Global Investment Conference ... place September 8-10, 2015 at The St. Regis Hotel ... James Sapirstein , Chief Executive Officer, ...
(Date:9/1/2015)... , Sept. 1, 2015 ... cancer death in American men. One in ... and 233,000 new cases are diagnosed annually. That ... are using a powerful new technique, MRI Fusion ... and large cancer lesions, treating only the affected ...
(Date:9/1/2015)... ... September 01, 2015 , ... ... ImageXpress® Micro Confocal High-Content Imaging System. This transformative system fits a broad ... cellular models such as spheroids, tissues, and organisms. , The ImageXpress ...
Breaking Biology Technology:American Brain Tumor Association Seeks Innovative Concepts For Discovery Research Grants 2ContraVir to Present at Rodman & Renshaw 17th Annual Global Investment Conference 2September Is Prostate Cancer Awareness Month 2September Is Prostate Cancer Awareness Month 3September Is Prostate Cancer Awareness Month 4ImageXpress Micro Confocal High-Content Imaging System Expands the Boundaries of Research 2ImageXpress Micro Confocal High-Content Imaging System Expands the Boundaries of Research 3
... for Ipilimumab to be Presented -PRINCETON, N.J., April 29 ... today that the following clinical abstracts for ipilimumab in ... anti-PD-1 antibody for cancer treatment, have been selected to ... of the American Society of Clinical Oncology, being held ...
... In an effort to provide technology to reduce ... early-phase medical device company, has demonstrated its patented ... is designed to protect hospital patients and medical ... healthcare facilities. It enables effective, frequent and instantaneous ...
... EPS increased 16.0 percent to $0.58 from $0.50 ... amortization of intangible assets from the 2003 spin-off, ... first-quarter 2008- Total net revenues increased 14.4 percent ... increased 21.0 percent to a record $2.3 billion- ...
Cached Biology Technology:Medarex Announces Presentations at Annual Meeting of the American Society of Clinical Oncology 2Medarex Announces Presentations at Annual Meeting of the American Society of Clinical Oncology 3Medarex Announces Presentations at Annual Meeting of the American Society of Clinical Oncology 4Germgard's Ultra-Fast Hand Hygiene Solution Protects Against Deadly MRSA, C difficile, and Influenza Virus 2Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 2Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 3Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 4Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 5Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 6Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 7Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 8Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 9Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 10Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 11Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 12Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 13Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 14Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 15Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 16Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 17Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 18Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 19Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 20Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 21Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 22Medco Delivers First-Quarter 2009 GAAP Diluted EPS of $0.58; Diluted EPS Excluding Amortization of Intangible Assets of $0.63; Reaffirms 2009 EPS Guidance; Announces Win of Coventry Commercial Business Starting January 1, 2010 23
...
BD IMagnet 1 each...
MHC. Sections include: the isolation and functional properties of antigen-presenting cells analysis of MHC class II endocytosis and peptide turnover analysis of signalling via MHC class II molecu...
Thermal Printer Paper for Monolight(tm) Luminometer 1 each...
Biology Products: