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Posts tagged #morphologies

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Collaborator R. Amin in #ACS #Nanoscience #AU (@ACSPublications): Kinetically-controlled #morphologies of #magnetic #nanoparticles through #ligand and #precursor #chemistry

ACS Nanoscience Au 6, 68-85 (2026)

doi.org/10.1021/acsn...

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Fig. 2
Experimental setup. (A) models performed simulated head flicks in an aquarium, mounted on a rod which allowed for unconstrained rotation around their center of mass (COM). Setup illustration is not to scale. (B) models were filmed from below for kinematic tracking in videos capturing their position before the latch dissolved and ending when the head reached and angle of 45⁠. Total length of the Chaetodon auriga model pictured is 27 cm. (C) The moment of inertia was calculated by measuring the surface area (e.g., ⁠) and the distance from the axis of rotation (e.g., ⁠) of segments along each morphology (head, body, and fins). Measurements were then incorporated in the MOI equation, along with the relevant material mass (see Equation (1), in the “Methods” section).

Fig. 2 Experimental setup. (A) models performed simulated head flicks in an aquarium, mounted on a rod which allowed for unconstrained rotation around their center of mass (COM). Setup illustration is not to scale. (B) models were filmed from below for kinematic tracking in videos capturing their position before the latch dissolved and ending when the head reached and angle of 45⁠. Total length of the Chaetodon auriga model pictured is 27 cm. (C) The moment of inertia was calculated by measuring the surface area (e.g., ⁠) and the distance from the axis of rotation (e.g., ⁠) of segments along each morphology (head, body, and fins). Measurements were then incorporated in the MOI equation, along with the relevant material mass (see Equation (1), in the “Methods” section).

IOB
Twist and Snout: Head and Body #Morphologies Determine Feeding #Kinematics in Substrate-Biting #Fishes
by
Perevolotsky, Brotman-Krass, Ratner, Avigad, Summers, Donatelli, Holzman

doi.org/10.1093/iob/...

"Using models that capture the natural #morphological variation of biters..."

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Roi Holzman
https://lifesci.tau.ac.il/
Jacob Brotman 
https://www.linkedin.com/in/jacob-brotman-krass-13630822a/

Roi Holzman https://lifesci.tau.ac.il/ Jacob Brotman https://www.linkedin.com/in/jacob-brotman-krass-13630822a/

IOB

Meet some of the authors of

Twist and Snout: Head and Body #Morphologies Determine Feeding #Kinematics in Substrate-Biting #Fishes

doi.org/10.1093/iob/...

Perevolotsky,

scholar.google.com/citations?us...

Summers,

www.adamsummers.org

Donatelli,

www.chapman.edu/engineering/...

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IOB - out now!
Twist and Snout: Head and Body #Morphologies Determine Feeding #Kinematics in Substrate-Biting #Fishes

Tal Perevolotsky, Jacob M Brotman-Krass, Yarden Ratner, Yael Avigad, @fishguy.bsky.social , @cmdonatelli.bsky.social , Roi Holzman

doi.org/10.1093/iob/...

#morphology #science

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Skeleton of P. pacificus in lateral view, from Tyler et al. (2003), California Academy of Sciences CAS 38,404, 96 mm SL, showing landmarked bones and landmark locations. (A) Drawing of the entire skeleton of P. pacificus showing the positions of the landmarked bones. (B) Landmarks 1–8 of the upper jaw (premaxilla and maxilla). (C) Landmarks 9–16 of the lower jaw (dentary and anguloarticular). (D) Landmarks 17–23 of the suspensorium (symplectic, hyomandibula, and preopercle). All drawings are modified after Tyler et al. (2003). For definitions of specific landmarks, see Table 1. The individual bones are as follows: anguloarticular, yellow; dentary, green; hyomandibula, violet; maxilla, red; premaxilla, purple; preopercle, pale blue; and symplectic, black.

Skeleton of P. pacificus in lateral view, from Tyler et al. (2003), California Academy of Sciences CAS 38,404, 96 mm SL, showing landmarked bones and landmark locations. (A) Drawing of the entire skeleton of P. pacificus showing the positions of the landmarked bones. (B) Landmarks 1–8 of the upper jaw (premaxilla and maxilla). (C) Landmarks 9–16 of the lower jaw (dentary and anguloarticular). (D) Landmarks 17–23 of the suspensorium (symplectic, hyomandibula, and preopercle). All drawings are modified after Tyler et al. (2003). For definitions of specific landmarks, see Table 1. The individual bones are as follows: anguloarticular, yellow; dentary, green; hyomandibula, violet; maxilla, red; premaxilla, purple; preopercle, pale blue; and symplectic, black.

IOB
"This study examines the evolution of #zeiform jaw #morphologies using #3D landmark-based multivariate #morphometrics as well as phylomorphospace analysis." by Peters et al
doi.org/10.1093/iob/...

#science #fish #organisms #biology #morphology

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IOB-
#Morphological Diversity & #Evolution of Jaw #Morphologies in Zeiform #Fishes (Teleostei, Paracanthopterygii)
by Peters, Duclos, Wilson,&Grande
doi.org/10.1093/iob/...
& see SICB's student fund Fine Art America account
for merch with their cover fineartamerica.com/featured/zen...

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Considering the active monitoring system that will be used to verify the effectiveness of the countermeasure, the Passo della Morte case study could become a starting point for implement-ing this pioneering and low-cost mitigation solution in similar #morphologies.

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