Results 101 to 110 of about 20,472 (223)

Diet composition and food habits of demersal and pelagic marine fishes from Terengganu waters, east coast of Peninsular Malaysia [PDF]

open access: yes, 2004
Fish stomachs from 18 demersal and pelagic fishes from the coast of Terengganu in Malaysia were examined. The components of the fishes’ diets varied in number, weight, and their frequency of occurrence.
Bachok, Z., Mansor, M.I., Noordin, R.M.
core  

Substrate for Thyroid Hormone Synthesis: Biochemistry, Evolution, and Physiology

open access: yesThe FASEB Journal, Volume 40, Issue 8, 30 April 2026.
Two proposed sequence of events for thyroxine formation in patients expressing mutant thyroglobulin. (A) (1) TSH stimulation drives expression of misfolded TG. (2) Unremitting ER stress. (3) Stress‐induced cell death. (4) Dead thyrocytes release their contents. (5) The contents become iodinated. (6) Forming thyroxine.
Crystal Young, Peter Arvan
wiley   +1 more source

Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in Abatus Sea Urchins across Subantarctic and Antarctic Seas

open access: yesAnimals
Abatus is a genus of irregular brooding sea urchins to the Southern Ocean. Among the 11 described species, three shared morphological traits and present an infaunal lifestyle in the infralittoral from the Subantarctic province; A. cavernosus in Patagonia,
Fernando Moya   +6 more
doaj   +1 more source

Crystalizing the genetic code

open access: yes, 2000
New developments are presented in the framework of the model introduced by the authors in refs. [1,2] and in which nucleotides as well as codons are classified in crystal bases of the quantum group U_q(sl(2)+sl(2)) in the limit q -> 0.
Frappat, L., Sciarrino, A., Sorba, P.
core   +2 more sources

Redox Metabolism During Aerial Exposure of the Sea Urchin Echinometra lucunter: An Ecophysiological Perspective

open access: yesAnimals
Intertidal organisms experience daily environmental fluctuations, including changes in temperature, UV radiation, and aerial exposure during low tide, requiring physiological strategies for survival.
Tatiana M. Pereira   +4 more
doaj   +1 more source

Effect of habitat structure on the most frequent echinoderm species inhabiting coral reef communities at Isla Isabel National Park (Mexico) [PDF]

open access: yes, 2015
The spatial distribution and abundance of the seven most abundant species of echinoderms (Diadema mexicanum, Centrostephanus coronatus, Eucidaris thouarsii, Isostichopus fuscus, Pharia pyramidatus, Phataria unifascialis and Acanthaster ellisii) were ...
Cupul-Magaña, A.   +5 more
core   +1 more source

Analysis of the Movement of Chlamydomonas Flagella: The Function of the Radial-spoke System Is Revealed by Comparison of Wild-type and Mutant Flagella [PDF]

open access: yes, 1982
The mutation uni-1 gives rise to uniflagellate Chlamydomonas cells which rotate around a fixed point in the microscope field, so that the flagellar bending pattern can be photographed easily .
Brokaw, C. J., Huang, B., Luck, D. J. L
core  

Bioinformatics analyses of the proteome of Holothuria tubulosa coelomic fluid and the first evidence of primary cilium in coelomocyte cells

open access: yesFrontiers in Immunology
The holothurian immune system is characterized by complex defense mechanisms that act through humoral and cellular pathways. Coelomocites are the cellular component of coelomic fluid, and they are involved in host defense, stress response, wound healing,
Laura La Paglia   +9 more
doaj   +1 more source

Ultrafiltration and Fluid Excretion in Echinoids Involves the Axial Organ with Elimination via the Intestine

open access: yesLife
Many animals display nephridial structures for the ultrafiltration of metabolic waste. However, a nephridial equivalent and an excretory system are not generally recognized for echinoderms.
L. Courtney Smith, Thomas M. Hill
doaj   +1 more source

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