Navigation Links
Northwestern researchers examine mechanical bases for the emergence of undulatory swimmers
Date:6/24/2013

upon mechanical parameters, is not sensitive to minor generational changes; as long as the body stiffness is above a certain value, the ability to swim quickly is insensitive to the value of the stiffness, the researchers found.

Finally, making a connection to the neural control of movement, the researchers analyzed the curvature of its undulations to determine if it was the result of a single bending torque, or if precise bending torques were necessary at every point along its body. They learned that a simple movement pattern gives rise to the complicated-looking deformation.

"This suggests that the animal does not need precise control of its movements," Patankar said.

To make these determinations, the researchers applied a common physics concept known as "spring mass damper" -- a model, applied to everything from car suspension to Slinkies, that determines movement in systems that are losing energy -- to the body of the fish.

This novel approach for the first time unified the concepts of active and passive swimming -- swimming in which forcing comes from within the fish (active) or from the surrounding water (passive) by calculating the conditions necessary for the fish to swim both actively and passively.


'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Grants add to Northwestern-Qatar partnership
2. UCSB scientists compile first study of potential for tsunamis in northwestern California
3. Northwestern scientists create chemical brain
4. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
5. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
6. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
7. UNH researchers find African farmers need better climate change data to improve farming practices
8. Ottawa researchers to lead world-first clinical trial of stem cell therapy for septic shock
9. Researchers uncover molecular pathway through which common yeast becomes fungal pathogen
10. Researchers print live cells with a standard inkjet printer
11. Columbia Engineering and Penn researchers increase speed of single-molecule measurements
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2014)... , Dec. 18, 2014 Research and Markets ( ... Market Monitor: North America Perimeter Security Systems Market" report ... The North American perimeter security market is estimated ... 2019. Although the U.S. market holds a larger share in ...
(Date:12/17/2014)... Dec. 15, 2014 The Defense Logistics Agency is ... and prevent counterfeit microcircuits from entering into its supply ... in-house microcircuit anti-counterfeit initiative dubbed DNA marking. The capability ... their reliability throughout the supply chain. The new quality ...
(Date:12/17/2014)... Dec. 16, 2014  Automation is fundamentally transforming the travel ... international borders. Over the past decade, ePassports, biometric readers, ... self process through border control via eGates and Automated ... airports, seaports, and land borders across the globe. ...
Breaking Biology News(10 mins):Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
... part in the National Science Foundation,s (NSF) Faculty ... additional distinction as winners of Presidential Early Career ... 2006 competition. The PECASE program recognizes outstanding ... show exceptional potential for leadership at the frontiers ...
... wildfires can contribute as much as vehicles to carbon ... highly variable. New research published in the online open ... and suggests fires will complicate emissions monitoring and modelling ... Atmospheric Research and Jason Neff of the University of ...
... State University have designed a revolutionary laser technique which ... damaging human cells and may also help reduce the ... The research, published on Thursday November 1 in ... discusses how pulses from an infrared laser can be ...
Cached Biology News:Beginning scientists receive presidential awards 2Beginning scientists receive presidential awards 3Beginning scientists receive presidential awards 4Beginning scientists receive presidential awards 5Beginning scientists receive presidential awards 6Beginning scientists receive presidential awards 7US faces burning emissions issue 2
(Date:1/22/2015)... Diagenode, Inc., a leading global provider ... complete solutions for epigenetics research, recently launched a ... need for manual processing. The new ChIPettor System ... histones or transcription factors and a semi-automated pipette ...
(Date:1/22/2015)... , a precision medicine software company that has developed a ... genomic, imaging and other biomedical data in research and clinical ... CEO of Aspera, an IBM Company, to its board as ... "We are pleased to welcome Michelle to ...
(Date:12/24/2014)... NEW YORK , Dec. 24, 2014 ... patient care in critical areas, announced the closing of an ... warrants to purchase up to an aggregate 3,500,000 shares of ... and $.01 per warrant.  The warrants have a per share ...
(Date:12/24/2014)... GMO corn cases filed across the United States, and ... being consolidated in a Kansas federal court for pretrial proceedings. ... Corn Litigation, MDL No. 2591 in the U.S. District Court ... GMO corn multidistrict litigation (MDL) has been handed over to ...
Breaking Biology Technology:Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2GenoSpace Expands Board with Appointment of Michelle Munson 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2
... SAN DIEGO, Feb. 9 PacificGMP, the ... manufacturing for its client partners, announced today ... with LigoCyte Pharmaceuticals, Inc. Under the collaborative ... banks and will provide storage services under ...
... Cancer Clinics of Excellence, LLC, the nation,s only ... of its 62nd comprehensive Evidence-Based Treatment Protocol covering ... the 4th Annual Community Oncology Conference today. "Our ... prepared to launch the protocols across its network ...
... Women Detect Serious Health Problems While Making Charitable DonationsSANTA ... hurts. But when it comes to women,s health, it,s ... in the United States dies of heart disease. Although ... women, most people fail to make the connection between ...
Cached Biology Technology:PacificGMP and LigoCyte Pharmaceuticals Announce cGMP Manufacturing Collaboration 2Cancer Clinics of Excellence (CCE) Releases 62nd Evidence-Based Treatment Protocol 2BioIQ Supports American Heart Month to Raise Awareness About Heart Disease, the #1 Killer of Women 2