Identifying the Geographical Source of Artefact Obsidian

Nature ◽  
1966 ◽  
Vol 211 (5046) ◽  
pp. 289-290 ◽  
Author(s):  
GEORGE A. PARKS ◽  
THOMAS T. TIEH
Keyword(s):  
Geographical Source

The influence of geographical source of seed on cotton oil

1926 ◽  
Vol 3 (4) ◽  
pp. 130-134 ◽  
Author(s):  
H. J. Morrison ◽  
L. W. Bosart
Keyword(s):  
Geographical Source ◽  
Cotton Oil

scholarly journals First Glimpse of Gut Microbiota of Quarantine Insects in China

2020 ◽  
Author(s):  
Yanxue Yu ◽  
Qi Wang ◽  
Ping Zhou ◽  
Na Lv ◽  
Wei Li ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Gut Microbiota ◽  
Geographical Origin ◽  
Geographic Origin ◽  
Insect Species ◽  
Monitoring Method ◽  
Geographical Source ◽  
Insect Gut ◽  
Tracing Method ◽  
New Habitats

AbstractQuarantine insects are economically important pests that frequently invade new habitats. A rapid and accurate monitoring method to trace the geographical source of invaders is therefore needed for prevention, detection, and eradication. Current methods based on insect genetics are often too slow. We developed a novel tracing method based on insect gut microbiota. The source location of microbiota of insects can be used to rapidly determine the insects’ geographic origin. We analyzed 179 gut microbiota samples belonging to 591 individuals of 22 quarantine insect species collected from 36 regions in China and abroad. The gut microbiotas of these insects mainly included Actinobacteria, Bacteroidetes, Cyanobacteria, Firmicutes, Proteobacteria, and Tenericutes. The diversity of the insect gut microbiota was closely related to geographic and environmental factors. Different insect species could be distinguished at the phylum level of microbiota. Populations of individual insect species from different regions could be distinguished at the genus level of microbiota. A method for determining the geographical origin of invasive insect species was tentatively established, but its practical applicability requires further study.

Major flavonoids of Argentinean honeys. Optimisation of the extraction method and analysis of their content in relationship to the geographical source of honeys

2009 ◽  
Vol 115 (3) ◽  
pp. 1141-1149 ◽  
Author(s):  
Miriam O. Iurlina ◽  
Amelia I. Saiz ◽  
Rosalía Fritz ◽  
Guillermo D. Manrique
Keyword(s):  
Extraction Method ◽  
Geographical Source

Streptococcus bovis endocarditis: Epidemiological differences depending on geographical source

2016 ◽  
Vol 177 ◽  
pp. e1-e2 ◽  
Author(s):  
Juan Corredoira ◽  
María José García-Pais ◽  
Ramón Rabuñal ◽  
María Pilar Alonso
Keyword(s):  
Streptococcus Bovis ◽  
Geographical Source

scholarly journals Emplacement of ideas. The development of geographical thought in Brazil in the early 20th century

Finisterra ◽  
2012 ◽  
Vol 33 (65) ◽  
Author(s):  
Lia Osorio Machado
Keyword(s):  
20Th Century ◽  
The Other ◽  
Early 20Th Century ◽  
Target Model ◽  
Source Models ◽  
Geographical Source ◽  
The Relationship

This paper looks at the circulation of modern geographical ideas in Brazil. The focus is on the relationship between geographical source models and the target model of domestic modernization. Three corresponding "mechanisms" provided the translation from one to the other: gradualism, adaptation and essentialism.

Molds and Tenuazonic Acid in Fresh Tomatoes Used for Catsup Production

1987 ◽  
Vol 50 (1) ◽  
pp. 38-41 ◽  
Author(s):  
PHILIP B. MISLIVEC ◽  
VERNEAL R. BRUCE ◽  
MICHAEL E. STACK ◽  
RUTH BANDLER
Keyword(s):  
United States ◽  
Geotrichum Candidum ◽  
Toxic Metabolite ◽  
Eastern United States ◽  
Tenuazonic Acid ◽  
Processing Plants ◽  
Geographical Source

The mold flora was determined for 146 samples of fresh but visibly moldy tomatoes collected from sorting belts in tomato catsup processing plants in California and in Midwestern and Eastern United States. Mold found in 141 of the samples included at least 22 genera, principally Alternaria, Aspergillus, Cladosporium, Fusarium and Penicillium, and 51 species. The California tomatoes were dominated by Geotrichum candidum and species of Aspergillus and Penicillium; Midwest and East tomatoes were dominated by Alternaria. This suggested that the predominant molds in tomatoes may differ, depending on geographical source. Tenuazonic acid (TA), a toxic metabolite of Alternaria spp., was found in 73 of the samples at a range of 0.4 to 69.7 (average 4.94) μg/g of moldy tissue; however, Alternaria spp. were not found in 35 of the 73 TA-positive samples. It is possible that other molds may produce TA or that the toxin-producing Alternaria died off before our sampling.

Aflatoxin and Zearalenone Occurrence in Dry-Milled Corn Products

1977 ◽  
Vol 60 (3) ◽  
pp. 579-582
Author(s):  
Leonard Stoloff ◽  
Barbara Dalrymple
Keyword(s):  
Aflatoxin Contamination ◽  
Dry Milling ◽  
Positive Correlation ◽  
Corn Products ◽  
Geographical Source ◽  
Experimental Findings ◽  
By Products

Abstract Eighty-two com dry-milling establishments in 20 States were surveyed concerning control practices for preventing the use of corn contaminated with aflatoxin or zearalenone. Prime products and by-products from each establishment were analyzed for these mycotoxins to determine whether a correlation exists between control practices and product contamination. No zearalenone was detected in any product; there was little awareness of the potential for contamination with this mycotoxin. No correlation was found between control practices and aflatoxin contamination encountered, but there was a positive correlation between aflatoxin contamination and the geographical source of the corn. Reported experimental findings in regard to the distribution of aflatoxin between prime product and by-product were generally corroborated.

scholarly journals Antimicrobial susceptibilities and serotyping of Neisseria gonorrhoeae in southern Africa: influence of geographical source of infection

1993 ◽  
Vol 110 (2) ◽  
pp. 297-305 ◽  
Author(s):  
C. A. Ison ◽  
N. S. Roope ◽  
Y. Dangor ◽  
F. Radebe ◽  
R. Ballard
Keyword(s):  
Antibiotic Resistance ◽  
Neisseria Gonorrhoeae ◽  
Southern Africa ◽  
Source Of Infection ◽  
Antimicrobial Susceptibilities ◽  
Resistance To Penicillin ◽  
Geographical Source ◽  
Geographical Locations ◽  
Mine Workers

SUMMARYOne hundred and ninety-two strains of Neisseria gonorrhoeae isolated from migrant mine-workers were tested for their susceptibility to antibiotics, auxotyped and serotyped. Of the total, 93 (48%) were acquired locally and 64 (33%) from different geographical locations. Plasmid-mediated resistance to penicillin was found in 28 (14·6%) strains and was associated predominantly with the presence of 5·0 kb penicillinase encoding plasmid (18/28, 64%). Chromosomal resistance to penicillin (MIC ≥ 1 mg/l) was detected in 14 (7·3%) strains. Resistance to tetracycline was chromosomally and not plasmid-mediated. Antibiotic resistance was encountered most commonly among strains acquired in Natal. The overall gonococcal population was sensitive to ceftriaxone, ciprofloxacin. spectinomycin and azithromycin. Nine auxotype/serovar (A/S) classes were encountered among penicillinase-producing N. gonorrhoeae (PPNG) compared to 24 A/S classes among non-PPNG strains. The most common A/S class was NR/IA-6 which accounted for 38% of PPNG and 15% of non-PPNG.

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