scholarly journals Elements of Physical Manipulation

Nature ◽  
1874 ◽  
Vol 10 (244) ◽  
pp. 160-161
Author(s):  
A. W. R.
Keyword(s):  
Physical Manipulation

scholarly journals The Impact of ‘Selfie’ Tourism on the Behaviour and Welfare of Brown-Throated Three-Toed Sloths

Animals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 216 ◽  
Author(s):  
Gemma Carder ◽  
Tinka Plese ◽  
Fernando Machado ◽  
Suzanne Paterson ◽  
Neil Matthews ◽  
...  
Keyword(s):  
Animal Welfare ◽  
Future Study ◽  
Average Duration ◽  
Wild Animal ◽  
Wild Animals ◽  
Different Types ◽  
Bradypus Variegatus ◽  
Focal Observation ◽  
The Impact ◽  
Physical Manipulation

The use of wild animals as photo props is prevalent across the globe and is widely recognised to represent a potential animal welfare concern. However, detailed information regarding the specific impacts of such activity on wild animal behaviour is currently lacking. Herein, we investigated how brown-throated three-toed sloths (Bradypus variegatus) were handled by tourists, and how sloths behaved during wildlife ‘selfies’ taken in Manaus, Brazil and Puerto Alegria and Iquitos in Peru. In total, we observed 17 sloths (during 70 focal observations) that were provided for use in wildlife selfies on 34 different tours. We found that an average number of 5 people held each sloth during each focal observation. For 48.6% of the time the sloths were handled in a way which involved physical manipulation of the sloths’ head and/or limbs and/or being held by the claws. From the eight different types of sloth behaviour observed, we found that the two types performed for the longest average duration of time were surveillance (55.3%) and limb stretching (12.6%). Our findings show that when being handled sloths were frequently held in ways that may compromise their welfare. Although to date the behaviour of sloths while being handled has not been reported in any published literature, in this study we document certain behaviours which may act as indicators of compromised welfare. We suggest that our data provides a potential baseline for future study into the behaviour and welfare of sloths.

Physical manipulation of single-molecule DNA using microbead and its application to analysis of DNA–protein interaction

2009 ◽  
Vol 321 (7) ◽  
pp. 655-658
Author(s):  
Hirofumi Kurita ◽  
Hachiro Yasuda ◽  
Kazunori Takashima ◽  
Shinji Katsura ◽  
Akira Mizuno
Keyword(s):  
Single Molecule ◽  
Protein Interaction ◽  
Dna Protein Interaction ◽  
Physical Manipulation

Didactic Strategy Based on Experimental Process and Physical Manipulation for a Meaningful Learning of the Dihedral System

2021 ◽  
pp. 375-383
Author(s):  
Jon Mikel Cabezas Escaño ◽  
Itziar Gonzalez Gurrutxaga ◽  
María Lozano Chico ◽  
Jose Antonio Oriozabala Brit ◽  
Lorena Ugarte Soraluce
Keyword(s):  
Meaningful Learning ◽  
Experimental Process ◽  
Physical Manipulation

Modelling interwall interactions in carbon nanotubes: fundamentals and device applications

2007 ◽  
Vol 365 (1861) ◽  
pp. 2893-2906 ◽  
Author(s):  
Elena Bichoutskaia
Keyword(s):  
Carbon Nanotubes ◽  
Relative Motion ◽  
Recent Progress ◽  
Self Regulation ◽  
Building Blocks ◽  
Great Promise ◽  
Low Friction ◽  
Fundamental Understanding ◽  
Device Applications ◽  
Physical Manipulation

Carbon nanotubes are the most commonly used ‘building blocks’ of modern nanotechnology. Their unique mechanical and electronic properties, stability and functionality show great promise in creating functional devices on the nanometre scale. One of the great challenges in using this scale is the ability of physical manipulation of the components, such as their positioning and assembling. Strong correlation between the structure and mechanical interactions of the walls of carbon nanotubes provides self-regulation of their relative motion. This can be further exploited in low-friction and high-stiffness devices. In this paper, we present a condensed overview of the recent progress in fundamental understanding of nanomechanical and nanoelectromechanical behaviour of carbon nanotubes and their applications in nanodevices.

Spinning the Cube with Technologies

2019 ◽  
Vol 112 (7) ◽  
pp. 551-554
Author(s):  
Lingguo Bu
Keyword(s):  
Problem Solving ◽  
Mathematics Teachers ◽  
Prospective Teachers ◽  
Teaching Experiment ◽  
Mathematical Tasks ◽  
Classroom Teaching ◽  
Sense Making ◽  
Pedagogical Issues ◽  
The Rich ◽  
Physical Manipulation

The rise of dynamic modeling and 3-D design technologies provides appealing opportunities for mathematics teachers to reconsider a host of pedagogical issues in mathematics education, ranging from motivation to application and from visualization to physical manipulation. This article reports on a classroom teaching experiment about cube spinning, integrating traditional tools, GeoGebra (www.geogebra.org), and 3-D design and printing technologies. It highlights the rich interplay between worthwhile mathematical tasks and the strategic use of diverse technologies in sustaining sense making and problem solving with a group of prospective teachers.

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