scholarly journals B2B E-Commerce Infrastructure Using Agents and Standards — A Potential Impact Analysis and Architecture

2001 ◽  
pp. 198-205 ◽  
Author(s):  
N. Ivezic ◽  
L. Fong ◽  
T. Rhodes ◽  
Y. Peng
Keyword(s):  
Impact Analysis ◽  
Potential Impact

A Potential Impact Analysis of ESTOL Aircraft on Newark Airport Operations

2007 ◽  
Author(s):  
George Couluris ◽  
Craig Hange ◽  
Douglas Wardwell ◽  
David Signor ◽  
James Phillips
Keyword(s):  
Impact Analysis ◽  
Airport Operations ◽  
Potential Impact

Modelling of two-dimensional contaminant migration in a layered and fractured zone beneath landfills

1991 ◽  
Vol 28 (3) ◽  
pp. 338-352 ◽  
Author(s):  
R. Kerry Rowe ◽  
John R. Booker
Keyword(s):  
Groundwater Quality ◽  
Impact Analysis ◽  
Two Dimensional ◽  
Transport Mechanisms ◽  
Contaminant Migration ◽  
Regulatory Policies ◽  
Finite Layer ◽  
Analysis Design ◽  
Potential Impact ◽  
The Impact

A new two-dimensional finite layer formulation that allows consideration of both vertical and horizontal contaminant migration in systems that may consist of both fractured and unfractured layers is described. Consideration is given to contaminant migration from typical municipal and nonhazardous waste disposal sites. The migration of concentrated dense nonaqueous phase contaminant, which involves additional transport mechanisms, is not considered in this paper. The use of the theory is illustrated with respect to a number of hypothetical cases. The results indicate that even relatively widely spaced small fractures can have a significant effect on potential impact on groundwater quality in an underlying aquifer. It is also shown that when dealing with relatively impermeable tills, impact on an underlying aquifer may not occur until after the landfill leachate is at a low strength; however, the impact may be quite significant and may last for hundreds of years. Consideration is given to the implication of regulatory policies that specify the maximum impact that can ever be permitted and those that simply specify that there be no impact for a specified (e.g., 100 year) period. It is shown that landfills that meet the requirements of no impact within the first 100 years may subsequently have a significant (unacceptable) impact on groundwater quality. Key words: clay, fractures, contaminant impact, analysis, design, diffusion.

Effects of Gender, Parental Role, and Time on Infant- and Adult-Directed Read and Spontaneous Speech

2019 ◽  
Vol 62 (11) ◽  
pp. 4001-4014
Author(s):  
Melanie Weirich ◽  
Adrian Simpson
Keyword(s):  
Parental Involvement ◽  
Gender Identity ◽  
Spontaneous Speech ◽  
First Year ◽  
Space Size ◽  
Vowel Space ◽  
Potential Impact ◽  
Phonetic Features ◽  
And Gender ◽  
Description Task

Purpose The study sets out to investigate inter- and intraspeaker variation in German infant-directed speech (IDS) and considers the potential impact that the factors gender, parental involvement, and speech material (read vs. spontaneous speech) may have. In addition, we analyze data from 3 time points prior to and after the birth of the child to examine potential changes in the features of IDS and, particularly also, of adult-directed speech (ADS). Here, the gender identity of a speaker is considered as an additional factor. Method IDS and ADS data from 34 participants (15 mothers, 19 fathers) is gathered by means of a reading and a picture description task. For IDS, 2 recordings were made when the baby was approximately 6 and 9 months old, respectively. For ADS, an additional recording was made before the baby was born. Phonetic analyses comprise mean fundamental frequency (f0), variation in f0, the 1st 2 formants measured in /i: ɛ a u:/, and the vowel space size. Moreover, social and behavioral data were gathered regarding parental involvement and gender identity. Results German IDS is characterized by an increase in mean f0, a larger variation in f0, vowel- and formant-specific differences, and a larger acoustic vowel space. No effect of gender or parental involvement was found. Also, the phonetic features of IDS were found in both spontaneous and read speech. Regarding ADS, changes in vowel space size in some of the fathers and in mean f0 in mothers were found. Conclusion Phonetic features of German IDS are robust with respect to the factors gender, parental involvement, speech material (read vs. spontaneous speech), and time. Some phonetic features of ADS changed within the child's first year depending on gender and parental involvement/gender identity. Thus, further research on IDS needs to address also potential changes in ADS.

Exploring the Potential Impact of Sentence-Level Comprehension and Sentence-Level Fluency on Deaf Students' Passage Comprehension

2020 ◽  
Vol 63 (7) ◽  
pp. 2281-2292
Author(s):  
Ying Zhao ◽  
Xinchun Wu ◽  
Hongjun Chen ◽  
Peng Sun ◽  
Ruibo Xie ◽  
...  
Keyword(s):  
Independent Predictor ◽  
Vocabulary Knowledge ◽  
Group Differences ◽  
Regression Analyses ◽  
Deaf Students ◽  
Mediating Role ◽  
Sentence Level ◽  
Mediating Mechanisms ◽  
Potential Impact ◽  
The Relationship

Purpose This exploratory study aimed to investigate the potential impact of sentence-level comprehension and sentence-level fluency on passage comprehension of deaf students in elementary school. Method A total of 159 deaf students, 65 students ( M age = 13.46 years) in Grades 3 and 4 and 94 students ( M age = 14.95 years) in Grades 5 and 6, were assessed for nonverbal intelligence, vocabulary knowledge, sentence-level comprehension, sentence-level fluency, and passage comprehension. Group differences were examined using t tests, whereas the predictive and mediating mechanisms were examined using regression modeling. Results The regression analyses showed that the effect of sentence-level comprehension on passage comprehension was not significant, whereas sentence-level fluency was an independent predictor in Grades 3–4. Sentence-level comprehension and fluency contributed significant variance to passage comprehension in Grades 5–6. Sentence-level fluency fully mediated the influence of sentence-level comprehension on passage comprehension in Grades 3–4, playing a partial mediating role in Grades 5–6. Conclusions The relative contributions of sentence-level comprehension and fluency to deaf students' passage comprehension varied, and sentence-level fluency mediated the relationship between sentence-level comprehension and passage comprehension.

Adverse Impact Analysis: Contemporary Perspectives and Practices

2011 ◽  
Author(s):  
Eric M. Dunleavy ◽  
Nancy T. Tippins ◽  
Frederick L. Oswald
Keyword(s):  
Impact Analysis ◽  
Adverse Impact
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