The Brave New Digital World: The Value of Published Work Today is Multifactorial; it is in the Heart of the Paper, not an Abstract Meaningless Single-Digit Number

2021 ◽  
Vol 32 (5) ◽  
pp. 1647-1648
Author(s):  
Mutaz B. Habal
Keyword(s):  
Digit Number ◽  
Single Digit ◽  
Digital World

The Results of Experimental Measurements of the Effects of Floating Floor Washers

2016 ◽  
Vol 820 ◽  
pp. 454-459
Author(s):  
Dušan Dlhý ◽  
Peter Tomašovič ◽  
Peter Petrák
Keyword(s):  
Noise Level ◽  
General Public ◽  
Experimental Measurements ◽  
Digit Number ◽  
Single Digit ◽  
Impact Noise

Many manufacturers of spring washers laid under floating floors express the effect of the reduction in a normalized impact noise level as a single digit number ∆L(dB) without defining the composition of the ceiling construction and wear layer, where the reduction in impact noise has occurred. This expression represents the quality and efficiency of washers for general public as well as for experts (architects, designers), which however, cannot be achieved by in situ (on site) measurements.

Multi-digit Number Processing

2014 ◽  
Author(s):  
Hans-Christoph Nuerk ◽  
Korbinian Moeller ◽  
Klaus Willmes
Keyword(s):  
Numerical Cognition ◽  
Distance Effect ◽  
Number Processing ◽  
Place Value ◽  
Digit Number ◽  
Single Digit ◽  
Numerical Development ◽  
Conceptual Distinction ◽  
Place Identification

Only recently the focus in numerical cognition research has considered multi-digit number processing as a relatively new and yet understudied domain in mathematical cognition. In this chapter: (i) we argue that single-digit number processing is not sufficient to understand multi-digit number processing; (ii) provide an overview on which representations and effects have been investigated for multi-digit numbers; (iii) suggest a conceptual distinction between place-identification, place-value activation, and place-value computation; (iv) identify language influences on multi-digit number processing along that conceptual distinction; and (v) argue that for numerical development indices of multi-digit number processing may be more suitable predictors of later arithmetical performance than classical single-digit measure such as the distance effect or non-numerical variables (e.g., working memory). In the final section, we summarize the important issues in multi-digit number processing, outline future directions and try to encourage readers to contribute to a new, exciting, yet understudied domain of numerical cognition.

scholarly journals Strategies Used by Grade 6 Learners in the Multiplication of Whole Numbers in Five Selected Primary Schools in the Kavango East and West Regions

2020 ◽  
Vol 13 (3) ◽  
pp. 65
Author(s):  
Alex Mbonabi ILUKENA ◽  
Christina Nyarai UTETE ◽  
Chosi KASANDA
Keyword(s):  
Primary Schools ◽  
Traditional Method ◽  
Mathematics Curriculum ◽  
Ministry Of Education ◽  
Digit Number ◽  
Single Digit ◽  
Whole Numbers ◽  
Paper And Pencil ◽  
East And West ◽  
Short Method

This research paper reports strategies used by Grade 6 learners in multiplying whole numbers in five selected primary schools in Kavango East and West regions. A total of 200 learners’ mathematics exercise books were analysed in order to identify the commonly used strategies by learners in multiplying whole numbers. A total of ten teachers teaching grade 6 mathematics were also requested to complete a questionnaire which required them to indicate the strategies that they employed in class when teaching multiplication of whole numbers. The teachers indicated that they used a variety of strategies including repeated addition, complete-number (Including doubling), partitioning and compensation to teach multiplication of whole numbers. The results also disclosed that the majority of the learners’ mathematics exercise books reflected the use of the traditional method of repeated addition contrary to the teachers’ claims. It was also found that a few of the learners used other strategies such as long method, short method and learner “invented” strategies. Additionally, the mathematics curriculum for upper primary learners (Grade 4-7 mathematics syllabus) requires learners to use paper and pencil algorithms to carry out multiplication of whole numbers without calculators (Ministry of Education, Arts & Culture [MoEAC], 2015, p. 2). However, at Grade 6, learners were expected to use paper and pencil algorithms to multiply numbers within the range 0-100000. Analysis of the learners’ exercise books indicated that the majority were not able to multiply a two digit by a single digit, a two digit by a two digit and a three digit by a two digit number.

scholarly journals Evidence of five digits in embryonic horses and developmental stabilization of tetrapod digit number

2020 ◽  
Vol 287 (1920) ◽  
pp. 20192756
Author(s):  
Kathryn D. Kavanagh ◽  
C. Scott Bailey ◽  
Karen E. Sears
Keyword(s):  
Extreme Case ◽  
Developmental Stability ◽  
Digit Number ◽  
Single Digit ◽  
Developmental Mechanisms ◽  
Organ Systems

Previous work comparing the developmental mechanisms involved in digit reduction in horses with other mammals reported that horses have only a ‘single digit', with two flanking metapodials identified as remnants of digit II and IV. Here we show that early Equus embryos go through a stage with five digit condensations, and that the flanking splint metapodials result from fusions of the two anterior digits I and II and the two posterior digits IV and V, in a striking parallel between ontogeny and phylogeny. Given that even this most extreme case of digit reduction exhibits primary pentadactyly, we re-examined the initial stages of digit condensation of all digit-reduced tetrapods where data are available and found that in all cases, five or four digits initiate (four with digit I missing). The persistent pentadactyl initiation in the horse and other digit-reduced modern taxa underscores a durable developmental stability at the initiation of digits. The digit evodevo model may help illuminate the biological circumstances under which organ systems become highly stabilized versus highly plastic.

Digit Repetition Effect in Two-Digit Number Comparison

2011 ◽  
Vol 219 (1) ◽  
pp. 30-36 ◽  
Author(s):  
Simone Gazzellini ◽  
Alessandro Laudanna
Keyword(s):  
Alternative Hypothesis ◽  
Prime Numbers ◽  
Repetition Effect ◽  
Syntactic Processing ◽  
Digit Number ◽  
Single Digit ◽  
Inhibition Effect ◽  
Form Processing ◽  
Number Comparison ◽  
Number Naming

Previous data from two-digit number naming show that when target and prime numbers share one digit at different positions (e.g., target 28 and prime 86 or 72) an inhibition effect may be observed (Ratinckx, Brysbaert, & Fias, 2005). Such an effect has been ascribed to the mechanism of morpho-phonological transcoding from Arabic to verbal format. We evaluate the alternative hypothesis of an inhibition effect arising during the Arabic form processing when two different syntactic values have to be assigned to the same single digit. In Experiments 1 and 3, a digit repetition effect was observed in number comparison tasks, even when phonological transcoding is blocked by an articulatory suppression task. Conversely, Experiment 2 showed that no digit repetition effect can be found with number comparison of verbal written numbers. Results are compatible with an Arabic-syntactic processing stage, where units and decades are decomposed and where each single digit is activated and recognized.

Regeneration from half lower arms in the axolotl

Development ◽  
1986 ◽  
Vol 95 (1) ◽  
pp. 247-260
Author(s):  
Peter Wigmore
Keyword(s):  
Posterior Half ◽  
Upper Arm ◽  
Digit Number ◽  
Single Digit ◽  
Skeletal Structures ◽  
Anterior Dorsal ◽  
Anterior Half ◽  
Ventral Muscle ◽  
Posterior Anterior

A technique involving grafting of pieces of skin from the head onto the limb in order to isolate halves of the limb is described. This technique was used to isolate posterior, anterior, dorsal and ventral halves of the lower arm. All halves produced regenerates but no part of the limb was able to produce a high proportion of regenerates with a complete pattern of skeletal structures. Posterior half stumps regenerated limbs with a mean digit number of 2.7 and had a normal dorsoventral muscle pattern. Anterior half stumps produced a high proportion of single-digit regenerates and had a mean digit number of 1.3. Dorsal and ventral half stumps regenerated limbs with a mean digit number of 2.8 and 2.3 respectively. Hypomorphic regenerates from dorsal and ventral half stumps often had only dorsal or ventral muscle. These results are in contrast to those from the upper arm (Wigmore & Holder, 1985) where a complete skeletal and muscular pattern regenerated from posterior and dorsal halves and hypomorphic regenerates were obtained from anterior and ventral half limbs.

Number Patterns and Bases

1982 ◽  
Vol 30 (2) ◽  
pp. 52-53
Author(s):  
Zehra Peera
Keyword(s):  
The Other ◽  
Digit Number ◽  
Single Digit

The well-known nurnber pattern in the nine-times taple in base ten is not peculiar to number nine. Multiplication by the highest single-digit number in any base, lower or higher than ten, will produce a similar order. The point is illustrated by the two tables, figures 1 and 2, in the nondecimal modern systems of numeration, one in base five and the other in base twelve.

Extending the Mental Number Line

2011 ◽  
Vol 219 (1) ◽  
pp. 3-22 ◽  
Author(s):  
Hans-Christoph Nuerk ◽  
Korbinian Moeller ◽  
Elise Klein ◽  
Klaus Willmes ◽  
Martin H. Fischer
Keyword(s):  
Everyday Life ◽  
Number Line ◽  
Mental Number Line ◽  
Number Processing ◽  
First Year ◽  
Digit Number ◽  
Single Digit ◽  
Comprehensive Review ◽  
Cognitive Research ◽  
Current Review

Multi-digit number processing is ubiquitous in our everyday life – even in school, multi-digit numbers are computed from the first year onward. Yet, many problems children and adults have are about the relation of different digits (for instance with fractions, decimals, or carry effects in multi-digit addition). Cognitive research has mainly focused on single-digit processing, and there is no comprehensive review of the different multi-digit number processing types and effects. The current review aims to fill this gap. First, we argue that effects observed in single-digit tasks cannot simply be transferred to multi-digit processing. Next, we list 16 effect types and processes which are specific for multi-digit number processing. We then discuss the development of multi-digit number processing, its neurocognitive correlates, its cultural or language-related modulation, and finally some models for multi-digit number processing. We finish with conclusions and perspectives about where multi-digit number processing research may or should be heading in following years.

A basic introduction to image processing using NIH-Image as a model

1994 ◽  
Vol 52 ◽  
pp. 392-393
Author(s):  
John Mansfield
Keyword(s):  
Image Processing ◽  
Digital Image ◽  
Image Acquisition ◽  
Digital Instrument ◽  
Novice User ◽  
Nih Image ◽  
The Past ◽  
Digital World ◽  
The World ◽  
Instrument Control

Advances in camera technology and digital instrument control have meant that in modern microscopy, the image that was, in the past, typically recorded on a piece of film is now recorded directly into a computer. The transfer of the analog image seen in the microscope to the digitized picture in the computer does not mean, however, that the problems associated with recording images, analyzing them, and preparing them for publication, have all miraculously been solved. The steps involved in the recording an image to film remain largely intact in the digital world. The image is recorded, prepared for measurement in some way, analyzed, and then prepared for presentation.Digital image acquisition schemes are largely the realm of the microscope manufacturers, however, there are also a multitude of “homemade” acquisition systems in microscope laboratories around the world. It is not the mission of this tutorial to deal with the various acquisition systems, but rather to introduce the novice user to rudimentary image processing and measurement.

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