scholarly journals Evaluating Concentrations of Pesticides and Heavy Metals in the U.S. Peanut Crop in the Presence of Detection Limits

2017 ◽  
Vol 44 (2) ◽  
pp. 124-133 ◽  
Author(s):  
Benjamin F. Blair ◽  
Marshall C. Lamb
Keyword(s):  
Censored Data ◽  
Detection Limits ◽  
Descriptive Statistics ◽  
Test Results ◽  
Independent Laboratory ◽  
Peanut Crop ◽  
Peanut Production ◽  
Cadmium Lead ◽  
Mean Concentration ◽  
The U.S

ABSTRACT The concentration of mercury, cadmium, lead, and arsenic along with glyphosate and an extensive array of pesticides in the U.S. peanut crop was assessed for crop years 2013-2015. Samples were randomly selected from various buying points during the grading process. Samples were selected from the three major growing regions in order to attain a representative sample of U.S. peanut production. Samples were sent to an independent laboratory for testing. Appropriate statistical techniques were used to account for censored data due to test results below detection limits. Descriptive statistics and confidence intervals for the population mean concentration are presented where possible. For heavily censored data, the probability of a random sample from the population testing below the detection limit is estimated. Overall, concentrations were found to be low relative to health standards and consistent across crop years.

The Competitive Position of Peanuts: A Comparison Between the U.S. and China1

1996 ◽  
Vol 23 (2) ◽  
pp. 104-110
Author(s):  
Changping Chen ◽  
Stanley M. Fletcher ◽  
Ping Zhang ◽  
Dale H. Carley
Keyword(s):  
Economic Cost ◽  
International Markets ◽  
Relative Price ◽  
Test Results ◽  
Net Returns ◽  
World Markets ◽  
Peanut Production ◽  
Reducing Costs ◽  
Cost Components ◽  
The U.S

Abstract This study analyzed the competitiveness of peanuts for the U.S. and China over the 1988-93 period. Economic cost, cost components, yield, and net returns were examined using the Mann-Whitney test. Results indicate that net returns to farm management and risk in peanut production were substantially lower in both the domestic and world markets for American peanut producers than for Chinese peanut producers due to higher economic cost in American peanut production. American peanuts were less competitive than Chinese peanuts in terms of costs and net returns. Findings suggest that reducing costs and improving economic efficiency of production should be the most important priority for the U.S. peanut industry as the world moves toward freer trade. The future competitiveness of U.S. peanuts not only depends on its high quality, but also depends on its relative price in the domestic and international markets.

Detection and Quantification of Biogenic Amines in Fermented Food Products Sold in Botswana

2010 ◽  
Vol 73 (9) ◽  
pp. 1703-1708 ◽  
Author(s):  
CLEMENT MAGWAMBA ◽  
MAITSHWARELO IGNATIUS MATSHEKA ◽  
SISAI MPUCHANE ◽  
BERHANU ABEGAZ GASHE
Keyword(s):  
Biogenic Amines ◽  
Biogenic Amine ◽  
High Performance ◽  
Fermented Food ◽  
Allowable Limit ◽  
Fermented Beverages ◽  
Sour Milk ◽  
Mean Concentration ◽  
The U.S ◽  
Detection And Quantification

The incidence and concentrations associated with four important biogenic amines in leading commercial fermented beverages consumed in Botswana were determined using high-performance liquid chromatography. In 87 sorghum brew and 84 sour milk (madila, amasi) samples tested, putrescine was the most prevalent biogenic amine (63 and 61%, respectively), while histamine was the least prevalent (24 and 8%, respectively). Cadaverine was the most frequently detected biogenic amine in 79 of the commercial sour maize beverage (mageu/mahewu) samples tested (found in 70% of the samples), while tyramine was the least detected (occurring in 3% of the samples). In sorghum brew and sour milk, tyramine was found to be the most concentrated (mean concentration of 2.08 mg/100 ml and 3.2 mg/100 ml, respectively), and histamine was found to be the least concentrated (mean concentration of 0.94 mg/100 ml and 0.31 mg/100 ml, respectively). Overall, the biogenic amine concentrations of all three fermented products were within acceptable limits. However, one sorghum brew sample had a histamine content of 5.8 mg/100 ml, which was above the 5.0 mg/100 g allowable limit suggested by the U.S. Food and Drug Administration.

scholarly journals Experiencing Differentiated Instructions as the Effort of Promoting Reading Comprehension Level

2017 ◽  
Vol 1 (2) ◽  
Author(s):  
Taufik Taufik
Keyword(s):  
Reading Comprehension ◽  
Differentiated Instruction ◽  
Educational System ◽  
English Learners ◽  
Descriptive Statistics ◽  
Test Results ◽  
Positive Experience ◽  
Flexible Grouping ◽  
Research Participants ◽  
Post Test

The current study explored the usefulness of differentiated instruction in the promotion of English learners reading comprehension in higher educational system. One TOEFL preparation class of a language center at University of Muhammadiyah Jember was chosen as the research participants. The students were taught through the strategies of differentiated instruction, viz. flexible grouping, tiered instruction, and tiered assignments, in the areas of content, process, and product. The outcomes of descriptive statistics from comparing pre-test and post-test results indicated that the students were having a positive experience with differentiated instruction in relation to their reading comprehension level. Further, the results also revealed that students also performed better in literal and inferential reading comprehension after experiencing differentiated instruction in the classroom.Keywords: differentiated instruction, reading comprehension.

The Comparative Analysis of International Competitiveness on China's Peanut Industry

2012 ◽  
Vol 601 ◽  
pp. 537-541
Author(s):  
Di Chen ◽  
Jie Lv
Keyword(s):  
International Trade ◽  
Comparative Analysis ◽  
Market Share ◽  
International Competitiveness ◽  
Comparative Statics ◽  
Intermediate Input ◽  
Peanut Production ◽  
Competitiveness Index ◽  
The U.S

This paper examines China's peanut industry's competitiveness under the framework of international trade by appliying comparative statics and emperical method. Specifically, datas including price, market share, competitiveness index and revealed comarative adavantage index are measured in the estimation. The main conclusion is that China's peanut production still has an edge, albeit receding, over that of some other countries like the U.S., India, and Argentina. The authors also augure that in order to improve the competitiveness of the peanut industry, one could facilitate the export practice and exploit the vertical related industries in which raw peanut is intermediate input.

scholarly journals Laser therapy applied to orofacial motricity: perception of members of the Brazilian Orofacial Motricity Association - Abramo

Revista CEFAC ◽  
2018 ◽  
Vol 20 (1) ◽  
pp. 61-68
Author(s):  
Asenate Soares de Matos ◽  
Giédre Berretin-Felix ◽  
Rafael Nóbrega Bandeira ◽  
Jully Anne Soares de Lima ◽  
Larissa Nadjara Alves Almeida ◽  
...  
Keyword(s):  
Laser Therapy ◽  
Descriptive Statistics ◽  
Test Results ◽  
Laser Equipment ◽  
The Subject ◽  
Research Volunteers ◽  
E Mail ◽  
Spearman’S Correlation ◽  
Online Form ◽  
Speech Therapists

ABSTRACT Purpose: to know the profile of members of the Brazilian Association of Orofacial Motricity and their knowledge and interest on laser therapy in Orofacial Motricity. Methods: an online form was elaborated covering questions about the speech therapist’s profile, training, and acting, as well as his/her knowledge about the theories of laser therapy and its clinical application. The form was sent via e-mail to members of the Brazilian Association of Orofacial Motricity - ABRAMO, registered in the year 2015. Data were analyzed through descriptive statistics and the Spearman’s correlation test. Results: only 5 (19.2%) out of the 26 participants reported having contact with laser equipment, and of these, only 1 (3.8%) used it in his/her practice. Regarding knowledge of the method, only 2 (7.7%) were trained, and the majority, 14 speech therapists (53.8%), had an interest in acquiring knowledge on this subject. Speech therapists with a longer training period were unaware of laser therapy (p = 0.03) and did not agree on the use (p = 0.01), but claimed to be interested in the subject (p = 0.05). Conclusion: it was possible to verify that the interest in improvement and insertion in the clinical practice in laser therapy are realities for the research volunteers, but a very small number has the knowledge and makes use of the technique in their interventions.

scholarly journals Markets: The U.S. Lodging Industry

2006 ◽  
Vol 20 (4) ◽  
pp. 203-218 ◽  
Author(s):  
Arturs Kalnins
Keyword(s):  
Descriptive Statistics ◽  
Lodging Industry ◽  
Ownership Concentration ◽  
Fixed Costs ◽  
Behavioral Norms ◽  
Market Structures ◽  
Competition And Cooperation ◽  
Oligopolistic Market ◽  
Price Cutting ◽  
The U.S

The U.S. lodging industry appears highly competitive. Ownership concentration appears to be low. Fixed costs are high relative to variable costs and unused rooms cannot be stored for future sale, so price-cutting should be attractive. However, this paper argues that, unexpectedly, oligopolistic market structures in many local lodging markets, combined with behavioral norms of cooperation, sustain profits in what might otherwise be an industry of cutthroat competition. I describe the patterns of competition and cooperation in the U.S. lodging industry, summarizing theoretical arguments, empirical research, descriptive statistics from industry and government sources, and anecdotal evidence from the trade press and from interviews conducted with managers of over 200 properties nationwide.

Analyzing Rates of Seriously Delinquent Mortgages in Asian Census Tracts in the United States

2017 ◽  
Vol 55 (2) ◽  
pp. 616-638 ◽  
Author(s):  
Katrin B. Anacker
Keyword(s):  
Race And Ethnicity ◽  
Weighted Least Squares ◽  
The United States ◽  
Community Survey ◽  
Descriptive Statistics ◽  
Social Differences ◽  
Metropolitan Statistical Areas ◽  
Census Tracts ◽  
Foreclosure Crisis ◽  
The U.S

Although race and ethnicity have been analyzed and discussed in the context of the national foreclosure crisis, there has been little work on neighborhoods in which different Asian subgroups reside, which is surprising given the relatively large demographic, economic, and social differences. Based on NSP 3 data, provided by the U.S. Department of Housing and Urban Development (HUD), and 2005/2009 American Community Survey (ACS) data, provided by the U.S. Bureau of the Census, this article utilizes descriptive statistics and weighted least squares (WLS) regressions to analyze rates of seriously delinquent mortgages for Census tracts in all Metropolitan Statistical Areas (MSAs), differentiating among different Asian subgroups. Findings show that neighborhoods with Hmong, Laotian, and Cambodian households had relatively high rates of seriously delinquent mortgages, whereas neighborhoods with Chinese, Japanese, and Pakistani households had relatively low rates of seriously delinquent mortgages.

Crystal Diagnostics MultiPath System™

2014 ◽  
Vol 97 (6) ◽  
pp. 1592-1600 ◽  
Author(s):  
Curtis H Stumpf ◽  
Weidong Zhao ◽  
Brian Bullard ◽  
Christine Ammons ◽  
Karl I Devlin ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Laboratory Tests ◽  
Ground Beef ◽  
Escherichia Coli O157 ◽  
Department Of Agriculture ◽  
E Coli ◽  
Independent Laboratory ◽  
Diagnostics System ◽  
Inspection Service ◽  
The U.S

Abstract The Crystal Diagnostics MultiPath System™ provides rapid detection of Escherichia coli O157 in fresh raw ground beef, raw beef trim, and spinach. The Crystal Diagnostics system combines patented Liquid Crystal technology with antibody-coated paramagnetic microspheres to selectively capture and detect E. coli O157 in food matrixes. This is the only liquid crystal-based biosensor commercially available for the detection of pathogens. The Crystal Diagnostics system expeditiously provides the sensitivity and accuracy of the U.S. Department of Agriculture Food Safety Inspection Service (USDA-FSIS) and the U.S. Food and Drug Administration Bacteriological Analytical Manual (FDA-BAM) methods for detecting as low as one CFU of E. coli O157 per 375 g of raw ground beef and raw beef trim, or 200 g of raw spinach. An internal inclusivity validation demonstrated detection of all 50 tested strains of E. coli O157. The internal and independent laboratory tests demonstrate that the method is rapid and sensitive for detecting of E. coli O157 in fresh raw ground beef, beef trim, and spinach.

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