Results 51 to 60 of about 23,002 (198)

Challenges for the development of a biotic ligand model predicting copper toxicity in estuaries and seas [PDF]

open access: yes, 2012
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2011 SETAC.An effort is ongoing to develop a biotic ligand model (BLM) that predicts copper (Cu) toxicity in estuarine and marine ...
de Polo, A, Scrimshaw, MD
core   +1 more source

A New Nonparasitic Species of the Holarctic Lamprey Genus Lethenteron Creaser and Hubbs, 1922, (Petromyzonidae) from Northwestern North America with Notes on Other Species of the Same Genus [PDF]

open access: yes, 1978
A new nonparasitic lamprey, Lethenteron alaskense from Alaska and Northwest Territories is described and illustrated. The holotype (No. NMC 76-614) is deposited in the National Museum of Natural Sciences, Ottawa, Canada.
Kott, Edward, Vladykov, Vadim D.
core  

A novel MAP kinase phosphatase is localised in the branchial arch region and tail tip of Xenopus embryos and is inducible by retinoic acid

open access: yesMechanisms of Development, 1996
Using a differential display strategy, we have isolated a cDNA corresponding to a mRNA which is induced by retinoic acid treatment of late gastrula Xenopus embryos, and much more strongly induced by retinoic acid and cycloheximide. The cDNA, designated X17C, encodes a novel mitogen-activated protein (MAP) kinase phosphatase of 378 amino acid residues ...
Mason, Clive   +3 more
openaire   +2 more sources

Hmx1 regulates urfh1 expression in the craniofacial region in zebrafish.

open access: yesPLoS ONE, 2021
H6 family homeobox 1 (HMX1) regulates multiple aspects of craniofacial development as it is widely expressed in the eye, peripheral ganglia and branchial arches.
Younes El Fersioui   +3 more
doaj   +1 more source

Costs of Chronic Waterborne Zinc Exposure and the Consequences of Zinc Acclimation on the Gill/Zinc Interactions of Rainbow Trout in Hard and Soft Water [PDF]

open access: yes, 1999
Juvenile rainbow trout were exposed to zinc in both moderately hard water (hardness 5 120 mg CaCO3/L, pH = 8.0, Zn = 150 μg/L or 450 μg/L) and soft water (hardness = 20 mg CaCO3/L, pH = 7.2, Zn = 50 μg/L or 120 μg/L) for 30 d.
Alsop, Derek H.   +3 more
core   +2 more sources

Cervical Thymic Cyst with parathyroid tissue – a diagnostic conundrum

open access: yesAutopsy and Case Reports, 2022
Cervical thymic cysts are relatively rare benign cystic lesions that tend to be diagnosed clinically as branchial cysts, which usually present as painless, enlarging neck masses.
Deepika Gupta   +5 more
doaj  

Cues from neuroepithelium and surface ectoderm maintain neural crest-free regions within cranial mesenchyme of the developing chick [PDF]

open access: yes, 2002
Within the developing vertebrate head, neural crest cells (NCCs) migrate from the dorsal surface of the hindbrain into the mesenchyme adjacent to rhombomeres (r)1 plus r2, r4 and r6 in three segregated streams.
Dixon, Monica   +2 more
core  

Ancient Pbx-Hox signatures define hundreds of vertebrate developmental enhancers [PDF]

open access: yes, 2011
Background: Gene regulation through cis-regulatory elements plays a crucial role in development and disease. A major aim of the post-genomic era is to be able to read the function of cis-regulatory elements through scrutiny of their DNA sequence ...
Bronner, Marianne E.   +4 more
core   +5 more sources

Periorbital epidermoid cyst in an elderly male

open access: yesMedical Journal of Dr. D.Y. Patil University, 2014
Developmental cysts of the head and neck are rare, but are the most frequent cause of cystic masses of the head and neck. Of these, thyroglossal duct cysts are the most common, comprising about 70%.
Sahana Ashok   +2 more
doaj   +1 more source

Wnt Signaling in Neural Crest Ontogenesis and Oncogenesis. [PDF]

open access: yes, 2019
Neural crest (NC) cells are a temporary population of multipotent stem cells that generate a diverse array of cell types, including craniofacial bone and cartilage, smooth muscle cells, melanocytes, and peripheral neurons and glia during embryonic ...
Hao, Hongyan   +4 more
core   +2 more sources

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