Tropical soils impede landmine detection ( MADISON WI FEBRUARY 4 2008 -- Use of...)

Tropical soils impede landmine detection

Date:2/6/2008

MADISON, WI, FEBRUARY 4, 2008 -- Use of a metal detector is the most common technique when searching for landmines, which litter the soil in approximately 90 countries around the world. Many of these countries are located in the tropics where intensively weathered soils are prevalent. These tropical soils have certain properties that can limit the performance of metal detectors due to soil magnetic susceptibility. This problem is enhanced by the spread of minimum-metal mines.

Magnetic properties of soils are caused by ferrimagnetic minerals, such as magnetite and maghemite. The negative effects can result in a reduction of detector sensitivity or cause false alarms. To overcome these problems, the metal detectors have been continuously re-hauled over the years but only now has the geoscientific research of the soil been taken into account. The knowledge of soil magnetic properties may allow detectors to be adapted to meet the local conditions.

Geoscientists at the Leibniz Institute for Applied Geosciences and the Federal Institute for Geosciences and Natural Resources in Hannover, Germany conducted a study on the magnetic susceptibility of tropical soils using the soil archive of the Federal Agency. The magnetic susceptibility of more than 500 soil samples from the entire tropical belt was analyzed with the goal of classifying their impact on landmine detection. The research was funded by the German Federal Ministry of Education and Research and was published in the January-February 2008 issue of the Soil Science Society of America Journal.

The study revealed that the problem of soil influence can occur quite frequently. More than one-third of the measured soil samples may generate severe or very severe limitations when using metal detectors. Soils were grouped according to their parent rocks. On average susceptibility of soils with basaltic origin were higher than those of other origin. However, the variability within the different g
'/>"/>

Contact: Sara Uttech
suttech@soils.org
608-268-4948
Soil Science Society of America
Source:Eurekalert

2

GOOD

Page: 1 2
Related biology news :

1. No convincing evidence for decline in tropical forests
2. Springer launches Tropical Plant Biology
3. Time-sharing tropical birds key to evolutionary mystery
4. Why do so many species live in tropical forests and coral reefs?
5. If corn is biofuels king, tropical maize may be emperor
6. Researchers discover forests of endangered tropical kelp
7. Spatial patterns in tropical forests can help to understand their high biodiversity
8. Tropical crab invades Georgia oyster reefs -- but the long-term impact cant be predicted
9. New study warns limited carbon market puts 20 percent of tropical forest at risk
10. Tropical insects go the distance to inform rainforest conservation
11. Earths soils bear unmistakable footprints of humans

Post Your Comments:

(Date:6/18/2013)... chemical modification of DNA and this modification can ... sequence. Until now, scientists believed that this epigenetic ... Today, a team of researchers from the University ... Louis-Jeantet Professor at the Faculty of Medicine, reveals ... that DNA methylation may play both a passive ...

(Date:6/17/2013)... a new virus in patients with severe brain infections ... the virus is responsible for the symptoms of disease. ... 28 out of 644 patients with severe brain infections ... in any of the 122 patients with non-infectious brain ... and central nervous system are often fatal and patients ...

(Date:6/17/2013)... foundations with more modern elements. Using this same approachbut ... Dietrich School of Arts and Sciences have designed a ... storage, and gas transport more efficient and at a ... issue of the Journal of the American Chemical ... builds upon Pitt Associate Professor of Chemistry Nathaniel Rosi,s ...

Breaking Biology News(10 mins):The secret of DNA methylation 2 New virus isolated from patients with severe brain infections 2 New virus isolated from patients with severe brain infections 3 'Chemical architects' build materials with potential applications in drug delivery and gas storage 2

[0] The secret of DNA methylation [0] New virus isolated from patients with severe brain infections [0] 'Chemical architects' build materials with potential applications in drug delivery and gas storage

... 12 collaborating institutions have been awarded $24 million in ... for Environmental Implications of Nanotechnology (UC CEIN), which will ... The center, to be housed ... campus, will explore the impact of nanomaterials on life ...

... DURHAM, NC--The National Science Foundation (NSF) and the Environmental ... the Center for Environmental Implications of NanoTechnology (CEINT) to ... Nanoparticles are as much as a million times smaller ... properties compared with larger objects made from the same ...

... University of North Carolina at Chapel Hill School of Medicine ... insulin, the hormone used to treat diabetes. The ... a cure for the millions of people affected by the ... into pluripotent stem cells, or cells that can give rise ...

Cached Biology News:UCLA, partners establish new center on environmental effects of nanotechnology 2 UCLA, partners establish new center on environmental effects of nanotechnology 3 UCLA, partners establish new center on environmental effects of nanotechnology 4 Duke to lead new NSF, EPA center to study the environmental implications of nanotechnology 2 Duke to lead new NSF, EPA center to study the environmental implications of nanotechnology 3 UNC scientists turn human skin cells into insulin-producing cells 2

UCLA, partners establish new center on environmental effects of nanotechnology Duke to lead new NSF, EPA center to study the environmental implications of nanotechnology UNC scientists turn human skin cells into insulin-producing cells

(Date:6/19/2013)... WASHINGTON, D.C. (PRWEB) June 19, 2013 ... with its first Bayer Bee Care Community Leadership Award. ... Pollinator Week Congressional Reception in Washington, D.C., an ... pollinators make to the world’s food supply. , ... who have harnessed the power of the honey bee ...

(Date:6/19/2013)... 19, 2013 BioConvergence team members ... faculty at 2013’s BioLogistics Summit in San Francisco ... by Cold Chain IQ and IQPC, addressed the ... is, in part, attributed to current trends of ... within these trends is an increase in movement, ...

(Date:6/19/2013)... (PRWEB) June 19, 2013 Express Diagnostics ... tests, today announced that it has received Class III ... and sell its DrugCheck® NxStep Onsite Drug Screen ... of the rapid screening device in near-patient settings, such ... Screen Cup received Health Canada Class III approval for ...

(Date:6/18/2013)... China Cord Blood Corporation (NYSE: ... of cord blood collection, laboratory testing, hematopoietic stem cell ... preliminary unaudited financial results for the fourth quarter and ... 2013. Fourth Quarter of Fiscal 2013 ... fiscal 2013 increased by 33.3% to RMB133.0 million ($21.4 ...

[0] Community Mentor Wins Inaugural Bayer CropScience Bee Care Leadership Award [0] BioConvergence® Presents at BioLogistics Summit on Risk Matrix for Biosamples during Shipment [0] Express Diagnostics’ DrugCheck® On-site Test Cup Receives Health Canada Class III Medical Device Approval [0] China Cord Blood Corporation Reports Financial Results for the Fourth Quarter and Full Year of Fiscal 2013

... TROMS0, Norway and SEOUL, Korea, June 19 ... KAEL-GemVax,today announced the signing of a collaborative agreement to ... for the treatment of,cancer. , ... CEO Jay,Sangjae Kim, "We are delighted to announce this ...

... research from Cincinnati Children,s Hospital Medical Center highlights the critical ... embryonic development on formation of a normal heart and skull. ... Proceedings of the National Academy of Sciences , a ... the gene/protein SHP2 interferes with the normal developmental activity of ...

... Inc. (OTC Bulletin Board: GOVX), an Atlanta-based biopharmaceutical ... HIV-1 (Human Immunodeficiency Virus), and other infectious agents, announced ... cooperative arrangement with Cook County Board President Todd H. ... County Health and Hospitals Systems Board ("Health System"); and ...

Cached Biology Technology:Lytix Biopharma and KAEL-GemVax Announce Joint Clinical Trial to Combine LTX-315 and GV1001 Cancer Immunotherapy 2 Scientists identify gene vital to early embryonic cells forming a normal heart and skull 2 GeoVax Signs HIV/AIDS Vaccine Proposal With Health and Hospital System of Cook County, Illinois 2 GeoVax Signs HIV/AIDS Vaccine Proposal With Health and Hospital System of Cook County, Illinois 3 GeoVax Signs HIV/AIDS Vaccine Proposal With Health and Hospital System of Cook County, Illinois 4 GeoVax Signs HIV/AIDS Vaccine Proposal With Health and Hospital System of Cook County, Illinois 5

Lytix Biopharma and KAEL-GemVax Announce Joint Clinical Trial to Combine LTX-315 and GV1001 Cancer Immunotherapy Scientists identify gene vital to early embryonic cells forming a normal heart and skull GeoVax Signs HIV/AIDS Vaccine Proposal With Health and Hospital System of Cook County, Illinois

... These 2-D standards consist of seven ... inhibitor, bovine carbonic anhydrase, rabbit muscle GAPDH, ... white conalbumin) with pIs ranging from 4.5 ... 17,500 to 76,000. These 2-D standards provide ...

... includes 2 tube gel adaptors, 24 ... length), gaskets, grommets, stoppers. The PROTEAN II ... cell offer the versatility to perform a ... second-dimension 2-D electrophoresis, native, preparative, and gradient ...

The PROTEAN II xi multi-cell 2-D conversion kit converts the PROTEAN II xi multi-cell to the PROTEAN II XL multi-cell for a wider format cell that accepts 17 to 18 cm IPG strips....

StemSep Anti-Phycoertherin Tetrameric Antibody Complexes, 2 mL for labeling 1x10 9 cells. Cross-linking Reagent for StemSep Separations of Cells Labeled with PE-conjugated Antibody....

Biology Products:

2-D SDS-PAGE Standards, 500 microliter from Bio-Rad PROTEAN II xi Cell 2-D Conversion Kit. from Bio-Rad PROTEAN II xi Multi-Cell 2-D Conversion Kit from Bio-Rad StemSep Anti-Phycoertherin TAC, 2 mL from StemCell Technologies, Inc.