Influence of DEM Uncertainty on the Individual-Based Modeling of Dispersal Behavior: A Simple Experiment

2017 ◽  
pp. 215-235
Author(s):  
Vincent B. Robinson
Keyword(s):  
Simple Experiment ◽  
Dispersal Behavior ◽  
The Individual ◽  
Dem Uncertainty ◽  
Individual Based Modeling

scholarly journals The discovery of third pole between a pair of like poles of an iron-core solenoid and a permanent magnet

2019 ◽  
Author(s):  
Umer Farooq
Keyword(s):  
Permanent Magnet ◽  
The Other ◽  
Iron Core ◽  
Magnetic Pole ◽  
Simple Experiment ◽  
The Third ◽  
The Individual ◽  
Experimental Findings ◽  
Vector Sum ◽  
Repulsion And Attraction

Creation of a third magnetic pole between a pair of like poles has been detected. Reason of the creation of the third pole is very simple but effects and ultimate results of the third pole are unbelievably immense. The result of a simple experiment is the basis of this discovery. In the experiment, like poles of an iron core-solenoid and a permanent magnet have been interacted with each other. Unexpectedly, both repulsion and attraction were produced between the like poles (one after the other) instead of only repulsion.Not only scientists have never conducted this experiment but also their assumption about this matter is totally contrary to the experimental findings. Opinion of a qualified scientist about this matter: “The strength and direction of a magnetic field at any point is the vector sum of all the individual fields at that point, so the situation you describe is not possible as the field at any point will always be a single vector. So it is not possible for the unaligned domains to be attracted by the permanent magnet while other domains are repelled because the unaligned domains will be acted upon only by the net field.” There seems an irremovable contradiction between the experimental findings and the opinion of the scientist but the discovery of the third magnetic pole solves this problem sufficiently.

Beyond reductionism: Refocusing on the individual with individual-based modeling

Complexity ◽  
2001 ◽  
Vol 6 (3) ◽  
pp. 33-40 ◽  
Author(s):  
Jeffrey C. Schank
Keyword(s):  
The Individual ◽  
Individual Based Modeling

Kinesthetic Perceptual Symmetry in Bi-Manual Interactions: An Exploratory Study

2020 ◽  
Author(s):  
Ronak R. Mohanty ◽  
Riddhi R. Adhikari ◽  
Vinayak R. Krishnamurthy
Keyword(s):  
Force Feedback ◽  
Human Perception ◽  
Dominant Hand ◽  
Spring Stiffness ◽  
Simple Experiment ◽  
Perceptual Illusions ◽  
Spatial Tasks ◽  
Resistive Forces ◽  
The Individual ◽  
Kinesthetic Perception

Abstract In this paper, we present a study to explore the symmetry of kinesthetic perception. Our goal is to add to the growing literature that investigates haptics technologies for therapeutic and rehabilitative applications. To this end, we study how selective activation/ deactivation of haptic (specifically force) feedback affects human perception during symmetric bi-manual (two-handed) spatial tasks. We conducted a simple experiment where healthy individuals are tasked with stretching a virtual spring using two symmetrically located haptics devices that provide an equal amount of resistive forces on each hand while pulling the spring. In this experiment, we implement four kinesthetic conditions, namely (1) feedback on both hands, (2) feedback only on dominant hand, (3) feedback only on non-dominant hand, and (4) no feedback as our control. Our first goal was to determine if there exists a range of spring stiffness in which the individual incorrectly perceives bi-manual forces when the feedback is deactivated on one hand. Subsequently, we also wanted to investigate what range of spring stiffness would lead to such perceptual illusions. Our studies show that not only does such a range exist, wide enough so as to be potentially utilized in future rehabilitative applications. Interestingly, we also observe that for few cases, symmetry can be independent of the kinesthetic perception.

Comment: predictability of survival in the individual patient with lung cancer

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1036-1037 ◽  
Author(s):  
P. Rubin
Keyword(s):  
Lung Cancer ◽  
The Individual

The Ultrastructure of Monkey Gingival Epithelium

1967 ◽  
Vol 25 ◽  
pp. 16-17
Author(s):  
C.N. Sun
Keyword(s):  
Epithelial Cells ◽  
Macaca Nemestrina ◽  
Stratum Granulosum ◽  
Solution Ph ◽  
Gingival Epithelial Cells ◽  
Stratum Spinosum ◽  
Cell Layers ◽  
Gingival Epithelium ◽  
The Individual ◽  
Different Thickness

The present study demonstrates the ultrastructure of the gingival epithelium of the pig tail monkey (Macaca nemestrina). Specimens were taken from lingual and facial gingival surfaces and fixed in Dalton's chrome osmium solution (pH 7.6) for 1 hr, dehydrated, and then embedded in Epon 812.Tonofibrils are variable in number and structure according to the different region or location of the gingival epithelial cells, the main orientation of which is parallel to the long axis of the cells. The cytoplasm of the basal epithelial cells contains a great number of tonofilaments and numerous mitochondria. The basement membrane is 300 to 400 A thick. In the cells of stratum spinosum, the tonofibrils are densely packed and increased in number (fig. 1 and 3). They seem to take on a somewhat concentric arrangement around the nucleus. The filaments may occur scattered as thin fibrils in the cytoplasm or they may be arranged in bundles of different thickness. The filaments have a diameter about 50 A. In the stratum granulosum, the cells gradually become flatted, the tonofibrils are usually thin, and the individual tonofilaments are clearly distinguishable (fig. 2). The mitochondria and endoplasmic reticulum are seldom seen in these superficial cell layers.

A Study of the Ultrastructure of Visual Cell Outer Segment Membranes, Using a Water-Miscible Embedding Medium and Differential Staining

1972 ◽  
Vol 30 ◽  
pp. 50-51
Author(s):  
Anthony J. Godfrey
Keyword(s):  
Outer Segment ◽  
Protein Denaturation ◽  
Uranyl Acetate ◽  
Differential Staining ◽  
Visual Cell ◽  
Lead Citrate ◽  
Chick Retina ◽  
Dark Staining ◽  
Embedding Medium ◽  
The Individual

Aldehyde-fixed chick retina was embedded in a water-containing resin of glutaraldehyde and urea, without dehydration. The loss of lipids and other soluble tissue components, which is severe in routine methods involving dehydration, was thereby minimized. Osmium tetroxide post-fixation was not used, lessening the amount of protein denaturation which occurred. Ultrathin sections were stained with 1, uranyl acetate and lead citrate, 2, silicotungstic acid, or 3, osmium vapor, prior to electron microscope examination of visual cell outer segment ultrastructure, at magnifications up to 800,000.Sections stained with uranyl acetate and lead citrate (Fig. 1) showed that the individual disc membranes consisted of a central lipid core about 78Å thick in which dark-staining 40Å masses appeared to be embedded from either side.

The Red Neuronal Pigment in the Nervous System of the Mussel, Mytilus Edulis: Localization and Its Effect on Lateral Ciliary Activity with Spectral and Analytical Changes

1981 ◽  
Vol 39 ◽  
pp. 494-495
Author(s):  
Anthony A. Paparo ◽  
Judith A. Murphy
Keyword(s):  
Nervous System ◽  
Mytilus Edulis ◽  
Neuronal Cell ◽  
Ciliary Activity ◽  
Neuronal Cell Bodies ◽  
The Central Nervous System ◽  
Intracellular Organelles ◽  
The Common ◽  
The Individual ◽  
Cryostat Sections

The purpose of this study was to localize the red neuronal pigment in Mytilus edulis and examine its role in the control of lateral ciliary activity in the gill. The visceral ganglia (Vg) in the central nervous system show an over al red pigmentation. Most red pigments examined in squash preps and cryostat sec tions were localized in the neuronal cell bodies and proximal axon regions. Unstained cryostat sections showed highly localized patches of this pigment scattered throughout the cells in the form of dense granular masses about 5-7 um in diameter, with the individual granules ranging from 0.6-1.3 um in diame ter. Tissue stained with Gomori's method for Fe showed bright blue granular masses of about the same size and structure as previously seen in unstained cryostat sections.Thick section microanalysis (Fig.l) confirmed both the localization and presence of Fe in the nerve cell. These nerve cells of the Vg share with other pigmented photosensitive cells the common cytostructural feature of localization of absorbing molecules in intracellular organelles where they are tightly ordered in fine substructures.

Some Effects of Oxidant Air Pollutants (Ozone and Peroxyacetyl Nitrate) on the Ultrastructure of Leaf Tissues

1972 ◽  
Vol 30 ◽  
pp. 360-361
Author(s):  
William W. Thomson ◽  
Elizabeth S. Swanson
Keyword(s):  
Air Pollutants ◽  
Electron Microscopic Examination ◽  
Peroxyacetyl Nitrate ◽  
Electron Microscopic ◽  
Growth Physiology ◽  
Physiology And Biochemistry ◽  
Entire Plant ◽  
Leaf Tissues ◽  
Gaseous Hydrocarbons ◽  
The Individual

The oxidant air pollutants, ozone and peroxyacetyl nitrate, are produced in the atmosphere through the interaction of light with nitrogen oxides and gaseous hydrocarbons. These oxidants are phytotoxicants and are known to deleteriously affect plant growth, physiology, and biochemistry. In many instances they induce changes which lead to the death of cells, tissues, organs, and frequently the entire plant. The most obvious damage and biochemical changes are generally observed with leaves.Electron microscopic examination of leaves from bean (Phaseolus vulgaris L.) tobacco (Nicotiana tabacum L.) and cotton (Gossipyum hirsutum L.) fumigated for .5 to 2 hours with 0.3 -1 ppm of the individual oxidants revealed that changes in the ultrastructure of the cells occurred in a sequential fashion with time following the fumigation period. Although occasional cells showed severe damage immediately after fumigation, the most obvious change was an enhanced clarity of the cell membranes.

Algorithms for automated montage synthesis of images from laser-scanning confocal microscopes

1995 ◽  
Vol 53 ◽  
pp. 650-651
Author(s):  
D. E. Becker
Keyword(s):  
Image Analysis ◽  
High Resolution ◽  
Laser Scanning ◽  
Cell Counting ◽  
Wide Area ◽  
Data Set ◽  
Computational Synthesis ◽  
Automated Cell Counting ◽  
Partial View ◽  
The Individual

An efficient, robust, and widely-applicable technique is presented for computational synthesis of high-resolution, wide-area images of a specimen from a series of overlapping partial views. This technique can also be used to combine the results of various forms of image analysis, such as segmentation, automated cell counting, deblurring, and neuron tracing, to generate representations that are equivalent to processing the large wide-area image, rather than the individual partial views. This can be a first step towards quantitation of the higher-level tissue architecture. The computational approach overcomes mechanical limitations, such as hysterisis and backlash, of microscope stages. It also automates a procedure that is currently done manually. One application is the high-resolution visualization and/or quantitation of large batches of specimens that are much wider than the field of view of the microscope.The automated montage synthesis begins by computing a concise set of landmark points for each partial view. The type of landmarks used can vary greatly depending on the images of interest. In many cases, image analysis performed on each data set can provide useful landmarks. Even when no such “natural” landmarks are available, image processing can often provide useful landmarks.

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