scholarly journals The Body Sense Hairs of Lepidopterous Larvæ

1902 ◽  
Vol 36 (427) ◽  
pp. 561-578 ◽  
Author(s):  
William A. Hilton
Keyword(s):  
The Body ◽  
Body Sense

scholarly journals Body | Sense Experience: An Architecture of Atmosphere and Light

2021 ◽  
Author(s):  
◽  
Sol Amour
Keyword(s):  
The Body ◽  
Sense Experience ◽  
Architectural Space ◽  
Built Form ◽  
Tangible Object ◽  
Material Form ◽  
Sense Of Wonder ◽  
Body Sense ◽  
The Way

<p>This thesis explores notions of the immaterial and metaphysical in architecture. It seeks to ‘elicit a sense of wonder’ in a participant of experiential space by promoting awareness of the metaphysical through atmosphere, affect and light. Architecture is more than purely a physical tangible object - it also crosses into the realms of the intangible, ephemeral and perceptive. The immaterial within architecture is just as important as the physical, if not more so, where a participant’s perception of space is informed more by the swirling climate of atmospheric ephemera than that of material form. It is through light that architecture is enlivened and imbued with character and meaning and it is the immaterial aspect of light that evokes a sense beauty and wonder within built form. The body/sense experience, looked at through the lens of the affect, evokes an intimately humanistic response to architectural space that is unbound by race, religion, culture or creed. This allows for architecture to become the catalyst for an awareness of the metaphysical, evoked through atmosphere, affect and light. Ultimately this thesis argues that the intangible, elusive and transitory moments within architecture are just as important as the physically present tangible object. It stresses the importance of architecture that is understood and experienced holistically, where created atmospheres, interaction of light and bodily cognition of space shape the way in which the built world is perceived.</p>

Rapid Assimilation of External Objects Into the Body Schema

2010 ◽  
Vol 21 (7) ◽  
pp. 1000-1005 ◽  
Author(s):  
Thomas A. Carlson ◽  
George Alvarez ◽  
Daw-an Wu ◽  
Frans A.J. Verstraten
Keyword(s):  
Body Schema ◽  
Empirical Support ◽  
The Body ◽  
Physical Contact ◽  
Philosophical Discussion ◽  
Extended Body ◽  
Extended Sense ◽  
External Objects ◽  
Empirical Tests ◽  
Body Sense

When a warrior picks up a sword for battle, do sword and soldier become one? The notion of an extended sense of the body has been the topic of philosophical discussion for more than a century and more recently has been subjected to empirical tests by psychologists and neuroscientists. We used a unique afterimage paradigm to test if, and under what conditions, objects are integrated into an extended body sense. Our experiments provide empirical support for the notion that objects can be integrated into an extended sense of the body. Our findings further indicate that this extended body sense is highly plastic, quickly assimilating objects that are in physical contact with the observer. Finally, we show that this extended body sense is limited to first-order extensions, thus constraining how far one can extend oneself into the environment.

scholarly journals Dilp8 requires the neuronal relaxin receptor Lgr3 to couple growth to developmental timing

2015 ◽  
Author(s):  
Andres Garelli ◽  
Fabiana Heredia ◽  
Andreia P. Casimiro ◽  
Andre Macedo ◽  
Catarina Nunes ◽  
...  
Keyword(s):  
Imaginal Disc ◽  
The Body ◽  
Peripheral Tissue ◽  
Developmental Timing ◽  
Couple Growth ◽  
Cns Neurons ◽  
Stress Signal ◽  
Relaxin Receptor ◽  
Body Sense

How different organs in the body sense growth perturbations in distant tissues to coordinate their size during development is poorly understood. Here, we mutated an invertebrate orphan relaxin receptor, the Drosophila Lgr3, and found body asymmetries similar to those found in insulin/relaxin-like peptide 8 (dilp8) mutants, which fail to coordinate growth with developmental timing. Indeed, mutation or RNAi against Lgr3 suppresses the delay in pupariation induced by imaginal disc growth perturbation or ectopic Dilp8 expression. By fluorescently-tagging the endogenous Lgr3 protein and performing CNS-specific RNAi, we find that Lgr3 is expressed and required in a novel subset of CNS neurons to transmit the peripheral tissue stress signal, Dilp8, to the neuroendocrine centers controlling developmental timing. Our work sheds new light on the function and evolution of relaxin receptors and reveals a novel neuroendocrine circuit responsive to growth aberrations.

scholarly journals Body | Sense Experience: An Architecture of Atmosphere and Light

2021 ◽  
Author(s):  
◽  
Sol Amour
Keyword(s):  
The Body ◽  
Sense Experience ◽  
Architectural Space ◽  
Built Form ◽  
Tangible Object ◽  
Material Form ◽  
Sense Of Wonder ◽  
Body Sense ◽  
The Way

<p>This thesis explores notions of the immaterial and metaphysical in architecture. It seeks to ‘elicit a sense of wonder’ in a participant of experiential space by promoting awareness of the metaphysical through atmosphere, affect and light. Architecture is more than purely a physical tangible object - it also crosses into the realms of the intangible, ephemeral and perceptive. The immaterial within architecture is just as important as the physical, if not more so, where a participant’s perception of space is informed more by the swirling climate of atmospheric ephemera than that of material form. It is through light that architecture is enlivened and imbued with character and meaning and it is the immaterial aspect of light that evokes a sense beauty and wonder within built form. The body/sense experience, looked at through the lens of the affect, evokes an intimately humanistic response to architectural space that is unbound by race, religion, culture or creed. This allows for architecture to become the catalyst for an awareness of the metaphysical, evoked through atmosphere, affect and light. Ultimately this thesis argues that the intangible, elusive and transitory moments within architecture are just as important as the physically present tangible object. It stresses the importance of architecture that is understood and experienced holistically, where created atmospheres, interaction of light and bodily cognition of space shape the way in which the built world is perceived.</p>

Representing utility and deploying the body

2020 ◽  
Vol 43 ◽  
Author(s):  
David Spurrett
Keyword(s):  
Functional Activity ◽  
Degrees Of Freedom ◽  
The Body ◽  
Target Article ◽  
Processing Demands ◽  
The Many

Abstract Comprehensive accounts of resource-rational attempts to maximise utility shouldn't ignore the demands of constructing utility representations. This can be onerous when, as in humans, there are many rewarding modalities. Another thing best not ignored is the processing demands of making functional activity out of the many degrees of freedom of a body. The target article is almost silent on both.

Neuron-glia relationship during the early postembryonic development of the nervous system in some oligochaetes

1978 ◽  
Vol 36 (2) ◽  
pp. 600-601
Author(s):  
Wiktor Djaczenko ◽  
Carmen Calenda Cimmino
Keyword(s):  
Nervous System ◽  
Glial Cells ◽  
Early Period ◽  
Postembryonic Development ◽  
Ruthenium Red ◽  
The Body ◽  
Tubifex Tubifex ◽  
Growth Stages ◽  
Cell Processes ◽  
Cytoplasmic Processes

The simplicity of the developing nervous system of oligochaetes makes of it an excellent model for the study of the relationships between glia and neurons. In the present communication we describe the relationships between glia and neurons in the early periods of post-embryonic development in some species of oligochaetes.Tubifex tubifex (Mull. ) and Octolasium complanatum (Dugès) specimens starting from 0. 3 mm of body length were collected from laboratory cultures divided into three groups each group fixed separately by one of the following methods: (a) 4% glutaraldehyde and 1% acrolein fixation followed by osmium tetroxide, (b) TAPO technique, (c) ruthenium red method.Our observations concern the early period of the postembryonic development of the nervous system in oligochaetes. During this period neurons occupy fixed positions in the body the only observable change being the increase in volume of their perikaryons. Perikaryons of glial cells were located at some distance from neurons. Long cytoplasmic processes of glial cells tended to approach the neurons. The superimposed contours of glial cell processes designed from electron micrographs, taken at the same magnification, typical for five successive growth stages of the nervous system of Octolasium complanatum are shown in Fig. 1. Neuron is designed symbolically to facilitate the understanding of the kinetics of the growth process.

Flagellar Attachment in Selected Trypanosomes

1973 ◽  
Vol 31 ◽  
pp. 496-497
Author(s):  
J. J. Paulin
Keyword(s):  
Cell Membrane ◽  
Lateral Surface ◽  
The Body ◽  
Flagellar Pocket ◽  
Integral Component ◽  
Free Flagellum ◽  
Flagellar Axoneme

Movement in epimastigote and trypomastigote stages of trypanosomes is accomplished by planar sinusoidal beating of the anteriorly directed flagellum and associated undulating membrane. The flagellum emerges from a bottle-shaped depression, the flagellar pocket, opening on the lateral surface of the cell. The limiting cell membrane envelopes not only the body of the trypanosome but is continuous with and insheathes the flagellar axoneme forming the undulating membrane. In some species a paraxial rod parallels the axoneme from its point of emergence at the flagellar pocket and is an integral component of the undulating membrane. A portion of the flagellum may extend beyond the anterior apex of the cell as a free flagellum; the length is variable in different species of trypanosomes.

Otoconia formation in the chick embryo

1983 ◽  
Vol 41 ◽  
pp. 572-573
Author(s):  
C.D. Fermin ◽  
M. Igarashi
Keyword(s):  
Chick Embryo ◽  
Inner Ear ◽  
Gallus Domesticus ◽  
The Body ◽  
Abnormal Behavior ◽  
Intensive Study ◽  
Basic Fuchsin ◽  
Gestational Period ◽  
Sensory Epithelia ◽  
Transmission Electron

Otoconia are microscopic geometric structures that cover the sensory epithelia of the utricle and saccule (gravitational receptors) of mammals, and the lagena macula of birds. The importance of otoconia for maintanance of the body balance is evidenced by the abnormal behavior of species with genetic defects of otolith. Although a few reports have dealt with otoconia formation, some basic questions remain unanswered. The chick embryo is desirable for studying otoconial formation because its inner ear structures are easily accessible, and its gestational period is short (21 days of incubation).The results described here are part of an intensive study intended to examine the morphogenesis of the otoconia in the chick embryo (Gallus- domesticus) inner ear. We used chick embryos from the 4th day of incubation until hatching, and examined the specimens with light (LM) and transmission electron microscopy (TEM). The embryos were decapitated, and fixed by immersion with 3% cold glutaraldehyde. The ears and their parts were dissected out under the microscope; no decalcification was used. For LM, the ears were embedded in JB-4 plastic, cut serially at 5 micra and stained with 0.2% toluidine blue and 0.1% basic fuchsin in 25% alcohol.

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