An Assessment of Three Methods for Extracting Bacterial DNA from Beach Sand

2021 ◽  
Author(s):  
J. Gallard‐Gongora ◽  
A. Lobos ◽  
J.W. Conrad ◽  
J. Peraud ◽  
V.J. Harwood
Keyword(s):  
Beach Sand ◽  
Bacterial Dna

115: Detection and Identification of Bacterial DNA and HIV Gag in the Semen of HIV Infected Men

2004 ◽  
Vol 171 (4S) ◽  
pp. 30-30
Author(s):  
Robert C. Eyre ◽  
Ann A. Kiessling ◽  
Thomas E. Mullen ◽  
Rachel L. Kiessling
Keyword(s):  
Bacterial Dna ◽  
Detection And Identification

Bacterial DNA in non-leukocytic ascites, identification of risk factors

2014 ◽  
Vol 52 (08) ◽  
Author(s):  
C Engelmann ◽  
S Krohn ◽  
D Prywerek ◽  
K Zeller ◽  
D Deichsel ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bacterial Dna

Groins, sand retention, and the future of Southern California’s beaches

Shore & Beach ◽  
2020 ◽  
pp. 14-36
Author(s):  
Gary Griggs ◽  
Kiki Patsch ◽  
Charles Lester ◽  
Ryan Anderson
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Southern California ◽  
Beach Sand ◽  
Submarine Canyons ◽  
Littoral Drift ◽  
Short Supply ◽  
Land Use Decisions ◽  
Coastal Cliffs ◽  
Retention Structures

Beaches form a significant component of the economy, history, and culture of southern California. Yet both the construction of dams and debris basins in coastal watersheds and the armoring of eroding coastal cliffs and bluffs have reduced sand supply. Ultimately, most of this beach sand is permanently lost to the submarine canyons that intercept littoral drift moving along this intensively used shoreline. Each decade the volume of lost sand is enough to build a beach 100 feet wide, 10 feet deep and 20 miles long, or a continuous beach extending from Newport Bay to San Clemente. Sea-level rise will negatively impact the beaches of southern California further, specifically those with back beach barriers such as seawalls, revetments, homes, businesses, highways, or railroads. Over 75% of the beaches in southern California are retained by structures, whether natural or artificial, and groin fields built decades ago have been important for local beach growth and stabilization efforts. While groins have been generally discouraged in recent decades in California, and there are important engineering and environmental considerations involved prior to any groin construction, the potential benefits are quite large for the intensively used beaches and growing population of southern California, particularly in light of predicted sea-level rise and public beach loss. All things considered, in many areas groins or groin fields may well meet the objectives of the California Coastal Act, which governs coastal land-use decisions. There are a number of shoreline areas in southern California where sand is in short supply, beaches are narrow, beach usage is high, and where sand retention structures could be used to widen or stabilize local beaches before sand is funneled offshore by submarine canyons intercepting littoral drift. Stabilizing and widening the beaches would add valuable recreational area, support beach ecology, provide a buffer for back beach infrastructure or development, and slow the impacts of a rising sea level.

AN ARTIFICIAL BEACH AS A MEANS FOR SEA COAST PROTECTION FROM STORM SURGES (BY THE EXAMPLE OF THE EASTERN GULF OF FINLAND)

2017 ◽  
Author(s):  
Igor Leontyev ◽  
Igor Leontyev ◽  
Tatiana Akivis ◽  
Tatiana Akivis
Keyword(s):  
Storm Surges ◽  
Gulf Of Finland ◽  
Beach Sand ◽  
Medium Sand ◽  
Material Loss ◽  
Beach Width ◽  
Intense Storm ◽  
The Gulf Of Finland ◽  
Beach Volume ◽  
Sea Coast

A model of an artificial beach is suggested for protection of coasts under erosion due to intense storm surges. It is shown that the coarser beach sand results in decrease of the beach width and growth of nourishment volume. At the same time relative material loss due to long-shore sediment transport diminishes too. The model has been applied to three sections of the coasts of Kurortny district of S.-Petersburg (eastern part of the Gulf of Finland). It recommends medium sand for the beaches construction. Modeling of extreme storms effect shows only minor deformations for designed beach profiles. For the beaches more than 1 km long even in 30-50 years more than a half of the initial beach volume conserves without additional nourishment.

Docking and 3D QSAR Studies on Substituted Cyclobutylphenyl Quinoline Derivatives as Inhibitors of Bacterial DNA Gyrase

2018 ◽  
Vol 14 (4) ◽  
pp. 322-337
Author(s):  
Rucha R. Wani ◽  
Hemchandra K. Chaudhari
Keyword(s):  
Dna Gyrase ◽  
3D Qsar ◽  
Quinoline Derivatives ◽  
Bacterial Dna ◽  
Qsar Studies
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