Are the systems the same?

2020 ◽  
Vol 17 (1) ◽  
pp. 58-83
Author(s):  
Matthew Kanwit ◽  
Silvia Pisabarro Sarrió
Keyword(s):  
Comparative Method ◽  
Independent Variables ◽  
Languages In Contact ◽  
Preference Task ◽  
Selection Of

Abstract Although two languages in contact may contain similar structures, superficial structural similarities may abscond important differences. The comparative method critically determines whether the languages differ in relative rates of variant use, the significance of independent variables, constraint rankings, and ordering within factor groups (Poplack & Tagliamonte 2001). The study explored intensifier (i.e., degree modifier) variation between Spanish muy and bien and Catalan molt and ben “very”, as based on 84 sets of responses from bilinguals on a 24-item contextualized preference task (40 in Catalan, 44 in Spanish). Results indicated significantly higher selection of muy in Spanish than molt in Catalan. Moreover, independent variables played a greater role in Spanish, with adjective quality, animacy, and verb type all predicting intensifier selection, whereas in Catalan only adjective quality was predictive. The study provided the first variationist analysis of Catalan intensification, while also revealing key systemic differences between the two languages despite surface similarities.

A Systematic Method for the Selection of Independent Variables in the Investigation of Complex Systems

1988 ◽  
Vol 32 (17) ◽  
pp. 1179-1182 ◽  
Author(s):  
P. Jay Merkle ◽  
Douglas B. Beaudet ◽  
Robert C. Williges ◽  
David W. Herlong ◽  
Beverly H. Williges
Keyword(s):  
Large Scale ◽  
Subjective Ratings ◽  
Systematic Method ◽  
Independent Variables ◽  
Integrated Strategy ◽  
Literature Reviews ◽  
Systematic Methodology ◽  
Research Problems ◽  
Inquiry System ◽  
Selection Of

This paper describes a systematic methodology for selecting independent variables to be considered in large-scale research problems. Five specific procedures including brainstorming, prototype interface representation, feasibility/relevance analyses, structured literature reviews, and user subjective ratings are evaluated and incorporated into an integrated strategy. This methodology is demonstrated in the context of designing the user interface for a telephone-based information inquiry system. The procedure was successful in reducing an initial set of 95 independent variables to a subset of 19 factors that warrant subsequent detailed analysis. These results are discussed in terms of a comprehensive sequential research methodology useful for investigating human factors problems.

Comparative Thermodynamics for Brayton and Rankine Cycles

1990 ◽  
Vol 112 (1) ◽  
pp. 94-99 ◽  
Author(s):  
E. W. Beans
Keyword(s):  
Thermodynamic Model ◽  
Thermal Efficiency ◽  
Unit Volume ◽  
Work Conditions ◽  
Comparison Analysis ◽  
Independent Variables ◽  
Equal Work ◽  
Maximum Work ◽  
Cycle Temperature ◽  
Selection Of

The thermal efficiency, work per unit mass, and work per unit volume of the simple Rankine and Brayton cycles are expressed in terms of seven independent variables using a simplified thermodynamic model. By requiring equal efficiency, equal work conditions, and the same maximum cycle temperature for both cycles, two necessary relationships are established between the seven independent variables. These two relationships along with two maximum work conditions produce a method for comparing required and selected properties. These comparisons provide useful guidelines for the selection of the cycle and cycle fluids. The comparison analysis shows that for a given application the more attractive cycle is strongly dependent upon the fluids selected.

The boundary layer over an impulsively started flat plate

1969 ◽  
Vol 310 (1502) ◽  
pp. 401-414 ◽  
Keyword(s):  
Boundary Layer ◽  
Leading Edge ◽  
Surface Shear Stress ◽  
Unsteady State ◽  
Similarity Condition ◽  
Surface Shear ◽  
Boundary Layer Problem ◽  
Independent Variables ◽  
Selection Of ◽  
Layer Problem

A numerical solution has been obtained for the development of the flow from the initial unsteady state described by Rayleigh to the ultimate steady state described by Blasius. The usual formulation of the problem in two independent variables is dropped, and three independent variables, in space and time, are reverted to. The boundary-layer problem is unconventional in that the boundary conditions are not completely known. Instead, it is known that the solution should satisfy a similarity condition, and use is made of this to obtain a solution by iteration. A finite-difference technique of a mixed, explicit-implicit, type is employed. The iteration converges rapidly. It is terminated where the maximum errors are estimated to be about 0.04%. A selection of the results for the velocity profiles and the surface shear stress is presented. One striking feature is the rapidity of the transition from the Rayleigh to the Blasius state. The change is practically complete, at a given station on the plate, by the time the plate has moved a distance equal to four times the distance from the station to the leading edge of the plate.

Gender assignment strategies and L1 effects in the elicited production of mixed Spanish-Basque DPs

2021 ◽  
Author(s):  
Amaia Munarriz-Ibarrola ◽  
Maria-José Ezeizabarrena ◽  
Varun DC Arrazola ◽  
M. Carmen Parafita Couto
Keyword(s):  
Statistical Analyses ◽  
Gender Assignment ◽  
Determiner Phrases ◽  
Languages In Contact ◽  
Determining Factor ◽  
Selection Of

Abstract This paper investigates the strategies involved in gender assignment in Spanish-Basque mixed Determiner Phrases (DPs) with a gendered Spanish determiner (el M /la F) and a Basque ungendered noun. Previous studies on Spanish-Basque mixed DPs have revealed conflicting results regarding the determining factor affecting gender assignment, namely, phonological ending vs. analogical gender. We designed a forced-switch elicitation task in order to elicit mixed DPs with a Spanish determiner and a Basque noun (controlled for both phonological vs. analogical cues). Thirty highly proficient Spanish-Basque bilinguals with different profiles and socio­linguistic backgrounds participated in the study. Three cues were significant in the selection of the Spanish M/F determiner: the analogical gender and two phonological cues, the word ending and the root ending of the Basque noun. Further statistical analyses revealed participants’ L1 as a strong factor in the variability attested: bilinguals with Spanish as (one of) their L1(s) rely predominantly on the analogical criterion, whereas speakers with only Basque as L1 follow mainly the phonological criterion. Overall, this study provides an explanation for the previous conflicting results and highlights the fact that bilinguals may use different strategies depending on their bilingual profile and the morpho-phonological properties of the languages in contact.

Comparison of Personality Characteristics of Physical Education and Recreation Majors, and Factors Which Affect Career Choice

1980 ◽  
Vol 51 (3_suppl2) ◽  
pp. 1291-1298
Author(s):  
James A. Batesky ◽  
John A. Malacos ◽  
Kevin M. Purcell
Keyword(s):  
Physical Education ◽  
Personality Characteristics ◽  
Control Group ◽  
Directed Search ◽  
Education Majors ◽  
Personality Profiles ◽  
Education Professionals ◽  
Independent Variables ◽  
Physical Education Majors ◽  
Selection Of

This study examined the personality characteristics of physical education and recreation majors, and ascertained why some students choose one over the other. Forty-nine physical education and recreation majors were administered Holland's Self-directed Search. A 2 × 3 fixed-factorial design was employed, sex and major plus a control group were independent variables. Both 24 recreation and 25 physical education majors were alike in the personality profiles and were very similar to recreation and physical education professionals already in the field. Significant differences were found on secondary, less dominant characteristics which may contribute to selection of a specialization area.

scholarly journals Soft Sensor Application in Identification of the Activated Sludge Bulking Considering the Technological and Economical Aspects of Smart Systems Functioning

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 1941 ◽  
Author(s):  
Bartosz Szeląg ◽  
Jakub Drewnowski ◽  
Grzegorz Łagód ◽  
Dariusz Majerek ◽  
Ewa Dacewicz ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Smart Cities ◽  
Treatment Plant ◽  
Soft Sensor ◽  
Support Vector ◽  
Optimal Method ◽  
Independent Variables ◽  
Sludge Bulking ◽  
Selection Of

The paper presented the methodology for the construction of a soft sensor used for activated sludge bulking identification. Devising such solutions fits within the current trends and development of a smart system and infrastructure within smart cities. In order to optimize the selection of the data-mining method depending on the data collected within a wastewater treatment plant (WWTP), a number of methods were considered, including: artificial neural networks, support vector machines, random forests, boosted trees, and logistic regression. The analysis conducted sought the combinations of independent variables for which the devised soft sensor is characterized with high accuracy and at a relatively low cost of determination. With the measurement results pertaining to the quantity and quality of wastewater as well as the temperature in the activated sludge chambers, a good fit can be achieved with the boosted trees method. In order to simplify the selection of an optimal method for the identification of activated sludge bulking depending on the model requirements and the data collected within the WWTP, an original system of weight estimation was proposed, enabling a reduction in the number of independent variables in a model—quantity and quality of wastewater, operational parameters, and the cost of conducting measurements.

scholarly journals At the boundaries of linguistic convergence: Variation in presentational haber / haver-hi

2018 ◽  
Vol 18 (1) ◽  
pp. 35-68
Author(s):  
José Luis Blas Arroyo
Keyword(s):  
Comparative Method ◽  
Social Groups ◽  
External Factors ◽  
Romance Languages ◽  
Normative Pressure ◽  
Languages In Contact ◽  
Structural Conflict

Abstract In this paper, we focus on an eventual convergence outcome (the pluralization of presentational haber/haver-hi) in the grammar of two Romance languages, Spanish and Catalan, which have been living side-by-side for centuries in Eastern Spain. Taking into account the sociolinguistic comparative method and on the basis of several representative corpora of the two languages in contact, the data from this research offer evidence that points to a notable congruence between the underlying grammars of both languages, which would, at least partially, account for a similar diffusion of these vernacular pluralizations. Moreover, some of the few cases of disagreement found can be explained on the basis of both internal (such as the existence of points of structural conflict in some verbal paradigms) and external factors (such as hypercorrection), which certain social groups particularly sensitive to normative pressure are more receptive to.

scholarly journals Prediction of selective inhibition of neuraminidase from various influenza virus strains by potential inhibitors

2016 ◽  
Vol 62 (6) ◽  
pp. 691-703 ◽  
Author(s):  
A.V. Mikurova ◽  
A.V. Rybina ◽  
V.S. Skvortsov
Keyword(s):  
Influenza Virus ◽  
3D Structure ◽  
Selective Inhibition ◽  
Regression Equations ◽  
Independent Variables ◽  
3D Data ◽  
Ic50 Values ◽  
Potential Inhibitors ◽  
Virus Strains ◽  
Selection Of

A universal model of inhibition of neuraminidases from various influenza virus strains by a particular has been developed. It is based on known 3D data for neuraminidases from three influenza virus strains (A/Tokyo/3/67, A/tern/Australia/G70C/75, B/Lee/40) and modeling of 3D structure of neuraminidases from other strains (A/PR/8/34 and A/Aichi/2/68). Using docking and molecular dynamics, we have modeled 235 enzyme-ligand complexes for 185 compounds with known IC50 values. Selection of final variants among three results obtained for each enzyme-ligand pair and calculation of independent variables for generation of linear regression equations was performed using MM-PBSA/MM-GBSA. This resulted in the set of equations individual strains and the equations pooling all the data. Thus using this approach it is possible to predict inhibition for neuraminidase from each of the considered strains by a particular inhibitor and to predict the range of its action on neuraminidases from various influenza virus strains.

scholarly journals Study on Effect of Leather Rigidity and Thickness on Drapability of Sheep Garment Leather

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4553
Author(s):  
Hafeezullah Memon ◽  
Eldana Bizuneh Chaklie ◽  
Hanur Meku Yesuf ◽  
Chengyan Zhu
Keyword(s):  
Significant Relationship ◽  
Flexural Rigidity ◽  
Considerable Influence ◽  
Independent Variables ◽  
And Behavior ◽  
Selection Of ◽  
Design And Production

Understanding the performance and behavior of garment leathers provides valuable inputs for the design and production of leather garments. The drape is one of the important properties associated with garment fitness quality and appeal. This study aims to show how the independent variables flexural rigidity and thickness affect the dependent variable drapability. Nowadays, studies on the drape of garment leathers are scarce. In this work, the drape coefficient (DC) was measured for sheep garment leather, which influences the garment drapability, such as flexural rigidity in the range of 9.2 to 22 and thickness in the range of 0.64 to 0.96. The average DC was calculated in the range of 47.35 to 69.9% for the selected sheep leathers from four samples. The drapability of the garment leather was determined using the DC. Flexural rigidity and thickness have been shown to have a considerable influence on the DC, while they do bear a significant relationship to the DC. The results of this study can be used as an elementary tool for leather selection of appropriate materials for garments.

scholarly journals KOMPARASI METODE SIMPLE ADDITIVE WEIGHTING (SAW) DAN ANALYTICAL HIERARCY PROCESS (AHP) UNTUK PEMILIHAN STAF LABORATORIUM KOMPUTER STMIK WIDYA CIPTA DHARMA SAMARINDA

2018 ◽  
Vol 22 (1) ◽  
Author(s):  
Salmon ◽  
Bartolomius Harpad
Keyword(s):  
Comparative Method ◽  
Measurement Scales ◽  
Ahp Method ◽  
Practice Test ◽  
Computer Laboratory ◽  
Computer Lab ◽  
Laboratory Staff ◽  
Comparative Results ◽  
Simple Additive Weighting ◽  
Selection Of

The main tasks of the computer laboratory staff are: practical administration services, preparation ofpracticum, recruitment and guidance of computer lab assistants, monitoring and supervising theimplementation of practicum and practice test. Selection of laboratory staff at this time made only directappointment by the leadership so the performance of staff is not good because the selected staff not inaccordance with the expertise it has. From these problems will be raised research Comparative Method ofSimple Additive Weighting (SAW) and Analytical Hierarcy Process (AHP) For Selection of ComputerLaboratory Staff In STMIK Widya Cipta Dharma Samarinda. The comparative results resulting from theSimple Additive Weighting (SAW) method and the Analytical Hierartical Process (AHP) method recommendthe appropriate Analytical Hierartical Process (AHP) method in the Selection of laboratory staff, where theAnalytical Hierarchical Process (AHP) method is considered appropriate to represent natural thinking tendto group system elements to different levels of each level containing similar elements so it is better to use forthe selection of laboratory staff that involves many criteria with different hierarchy levels. In addition, the32AHP method also provides measurement scales and methods to get priority for all hierarchy criteria, sinceeach criterion has unequal priorities.Keyword :Comparative, Simple Additive Weighting (SAW), Analytical Hierarchy Process (AHP),ComputerLaboratory Staff Selection.

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