Quantitative Analysis of Human Platelet Adhesions Under a Small-Scale Flow Device

2010 ◽  
Vol 34 (4) ◽  
pp. 295-300 ◽  
Author(s):  
Katsuko S. Furukawa ◽  
Keigo Nakamura ◽  
Yuji Onimura ◽  
Masaki Uchida ◽  
Atsuo Ito ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Human Platelet ◽  
Small Scale ◽  
Flow Device

scholarly journals Maize intercropping in the milpa system. Diversity, extent and importance for nutritional security in the Western Highlands of Guatemala

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Santiago Lopez-Ridaura ◽  
Luis Barba-Escoto ◽  
Cristian A. Reyna-Ramirez ◽  
Carlos Sum ◽  
Natalia Palacios-Rojas ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Farm Households ◽  
Small Scale ◽  
Agricultural System ◽  
Energy Yield ◽  
Common Beans ◽  
Nutritional Security ◽  
Nutrient Adequacy ◽  
Faba Beans ◽  
Total Productivity

AbstractWe present an assessment of the extent, diversity, and nutritional contribution of the milpa through a quantitative analysis of data from a survey conducted in 989 small scale farm households in the Western Highlands of Guatemala (WHG). The milpa is a traditional agricultural system in which maize is intercropped with other species, such as common beans, faba beans, squashes or potatoes. Our study shows that more than two-thirds of the 1,205 plots recorded were under the milpa system, with a great diversity of crop combinations. As shown with the 357 plots for which specific yields were available, milpa systems present higher total productivity than monocropped maize, expressed as total energy yield of the harvested crops in the respective system, and were also better at providing the recommended daily allowances of fourteen essential nutrients, based on a Potential Nutrient Adequacy (PNA) indicator. Maize-bean-potato, maize-potato, and maize-bean-faba intercrops had the highest PNAs, and monocropped maize, the lowest. These results support the implementation of milpa systems tailored to different agro-ecologies in order to improve nutrition in the WHG and a variety of similar regions.

scholarly journals Development of Science Literature Instruments Contained Ethnoscience in Science Subject for Class IV Elementary School Students

2021 ◽  
Vol 8 (9) ◽  
pp. 423-435
Author(s):  
Nur khairiyatul Mar’ah ◽  
Ani Rusilowati ◽  
Eko Purwanti
Keyword(s):  
Elementary School ◽  
Quantitative Analysis ◽  
Scientific Literacy ◽  
Large Scale ◽  
Multiple Choice ◽  
Difficulty Level ◽  
Small Scale ◽  
Science Literature ◽  
Level Of Difficulty ◽  
Science Subject

This study aimed to produce scientific literacy instruments containing ethnoscience for grade IV elementary school on science subject theme number 9 "Kayanya Negeriku" which is valid, reliable, feasible, and practical. This research method used R&D research with ADDIE research design (analysis, design, development, implementation, and evaluation). The steps developed include design, expert validation, small-scale trials, and large-scale trials. The instrument developed is a reasoned multiple choice instrument. The data collection technique in this development research was a test (multiple choice) and a practicality questionnaire. The results of the validation of scientific literacy instruments containing ethnoscience are valid, the reliability value during small-scale trials was 0.671 and when large-scale trials were 0.711 these values indicate the instrument is reliable. The differentiating power of small-scale questions obtained 20 multiple-choice questions for grade IV elementary school, there were 10 items received, 2 items were accepted but needed to be corrected, and 8 items were corrected. The analysis of large-scale discrepancy from 20 questions contained 11 items for the criteria for the items to be accepted, 3 items were accepted but needed to be corrected, and 6 items were corrected. Testing results of the difficulty level gained the results of quantitative analysis on a small scale for the level of difficulty of the questions stated that, as many as 2 questions with easy criteria, 13 questions with medium criteria and 5 questions with difficult criteria. While the results of quantitative analysis on a large scale for the level of difficulty of the questions stated that, as many as 3 items with difficult criteria, 17 questions with moderate criteria and for easy criteria were not found in large-scale trials. The practicality of the instrument can be decided based on the percentage of practicality. The percentage obtained from the teacher's assessment is in very practical criteria. Keywords: Development, Instrument, Science Literacy, Ethnoscience.

scholarly journals Item Analysis for a Better Quality Test

2019 ◽  
Vol 2 (1) ◽  
pp. 59
Author(s):  
Neti Hartati ◽  
Hendro Pratama Supra Yogi
Keyword(s):  
Quantitative Analysis ◽  
Item Analysis ◽  
Document Analysis ◽  
Qualitative Approach ◽  
Difficulty Level ◽  
Small Scale ◽  
Test Items ◽  
Discriminating Power ◽  
Multiple Choice Items

This study is a small-scale study of item analysis of a teacher’s own-made summative test. It examines the quality of multiple-choice items in terms of the difficulty level, the discriminating power, and the effectiveness of distractors. The study employed a qualitative approach which also used a simple quantitative analysis to analyze the quality of the test items through the document analysis of the teacher’s English summative test and the students’ answer sheets.  The result shows that the summative test has more easy items than difficult items with the ratio of 19:25:6 while they should be 1:2:1 for easy, medium, and difficult.  In terms of the Discriminating Power, there are 3, 13, and 16 for excellent, Good, and satisfactory level, but there are 17 and 2 for poor and bad levels of Discriminating Power.  There are 43 (21.5%) of all distractors which are dysfunctional which, in turns, makes the items too easy which also makes the items fail to discriminate the upper-group students from the lower ones. Therefore, the 43 dysfunctional distractors should be revised to alter the difficulty level and improve the discriminating power.  This research is expected to serve as a reflective means for teachers to examine their own-made test to ensure the quality of their test items.

scholarly journals Phenomena-centered Text Analysis (PTA): a new approach to foster the qualitative paradigm in text analysis

2021 ◽  
Author(s):  
Thomas Krikser ◽  
Benedikt Jahnke
Keyword(s):  
Qualitative Research ◽  
Data Analysis ◽  
Quantitative Analysis ◽  
Qualitative Analysis ◽  
Text Analysis ◽  
Qualitative Data ◽  
Small Scale ◽  
Small Step ◽  
New Approach ◽  
Increasing Demand

AbstractContent or text analysis is one of the most common evaluation methods employed in qualitative research. Despite its wide application, however, a clear structure of how such evaluation should be conducted is often lacking due to the complexity of qualitative data. As a consequence, highly differentiated category systems with small-step subdivisions of categories and sub-categories are often used, leading to a loss of context both among categories and for the content as a whole. The aim of this paper is to describe the Phenomena-centered Text Analysis (PTA) as a novel form of qualitative text analysis, which takes these shortcomings into account by focusing on text-inherent phenomena. These phenomena are identified in two preceding quantitative analysis steps that identifying overlapping coding for subsequently qualitative analysis. We explain the structured code- and context-based approach of this new method and demonstrate its application with an empirical example. The PTA contributes to an increasing demand of qualitative methods especially for small-scale projects that need a structured kind of qualitative data analysis.

Small-scale and rapid quantitative analysis of phenols and carbazoles in sedimentary matter

2003 ◽  
Vol 34 (8) ◽  
pp. 1113-1127 ◽  
Author(s):  
Trevor P Bastow ◽  
Ben G.K van Aarssen ◽  
Geoff E Chidlow ◽  
Robert Alexander ◽  
Robert I Kagi
Keyword(s):  
Quantitative Analysis ◽  
Small Scale ◽  
Sedimentary Matter
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