Results 81 to 90 of about 19,963 (235)

Ploidy‐dependent modulation of DNA replication kinetics in Xenopus

open access: yesThe FEBS Journal, EarlyView.
Using an interspecies replication system with Xenopus frog species of different ploidy levels, we investigated how DNA replication adapts to polyploidization. While replication was slower in tetraploid than in diploid nuclei, dodecaploid nuclei unexpectedly replicated faster than tetraploid nuclei. Our findings show that increasing genome size does not
Hemalatha Narassimprakash   +4 more
wiley   +1 more source

Neotropical tadpoles: spatial and temporal distribution and habitat use at a seasonal lake in Veracruz, Mexico [PDF]

open access: yesPhyllomedusa: Journal of Herpetology, 2002
We studied a tadpole assemblage in a seasonal neotropical lake where 14 species of anurans reproduce. Tadpoles were collected monthly at nine sampling stations at depth intervals of 1 m from the surface to the bottom (13 m).
Roberto E. Torres-Orozco   +3 more
doaj  

Impacts of predator odours and conspecific disturbance cues on minnow thermal tolerance

open access: yesJournal of Fish Biology, EarlyView.
Abstract Warming waters can affect fish community dynamics, potentially exacerbating predator–prey asymmetries in behavioural and physiological metrics of thermal tolerance. Further, differing responses of prey fish species to concurrent predation risk and warming highlight the need to understand these impacts in various contexts, especially with at ...
V. Groves   +4 more
wiley   +1 more source

Higgs-gauge unification without tadpoles

open access: yes, 2004
In orbifold gauge theories localized tadpoles can be radiatively generated at the fixed points where U(1) subgroups are conserved. If the Standard Model Higgs fields are identified with internal components of the bulk gauge fields (Higgs-gauge ...
BIGGIO, CARLA, QUIROS M.
core   +1 more source

Adaptive plasticity in anuran metamorphosis: response of tadpoles of Polypedates maculatus (Anura: Rhacophoridae) to pond drying

open access: yesPhyllomedusa: Journal of Herpetology, 2023
The influence of desiccation on metamorphic traits (larval duration and size at emergence) was studied in Polypedates maculatus under laboratory conditions.
Santosh M. Mogali   +2 more
doaj  

20th Anniversary of human‐induced pluripotent stem cells and the role of microscopy

open access: yesJournal of Microscopy, EarlyView.
Abstract It has been 20 years since the pioneering work of Shinya Yamanaka and Kazutoshi Takahashi at Kyoto University led to the first successful generation of induced pluripotent stem cells (iPSCs) from mouse embryonic and adult fibroblast cells. iPSCs have the capacity to differentiate into any type of cell in the human body, and as such, they have ...
Philomena Hallford   +3 more
wiley   +1 more source

The XenCart Protocol: A method for Alcian blue labeling and quantitative analysis of craniofacial cartilage in Xenopus

open access: yesJournal of Anatomy, EarlyView.
The XenCart Protocol provides a reproducible way to visualize and quantify how the developing craniofacial skeleton responds to experimental perturbation. Embryos are exposed to defined conditions, craniofacial cartilage is stained with Alcian blue, imaged, and analyzed morphometrically.
Umar Aziz   +4 more
wiley   +1 more source

Lattice tadpoles

open access: yes
We prove several rigorous results about the asymptotic behaviour of the numbers of tadpoles
(or lassos) embedded in a lattice, including cases where the head is subject to a constraint like
being unknotted, or where the tail pierces the ...
Stuart G Whittington
core   +1 more source

Tadpoles with shortened tails swam as fast as tadpoles with longer tails.

open access: yes, 2014
Agalychnis callidryas tadpoles that were reared with fish, either in the fish only predator treatment or the all predator treatment, had substantially shortened tails in comparison to tadpoles from other predator treatments.
Justin C. Touchon (302355)   +1 more
core   +1 more source

Effects of temperature on growth, development, and survival of amphibian larvae: macroecological and evolutionary patterns

open access: yesAnais da Academia Brasileira de Ciências
Temperature affects the rate of biochemical and physiological processes in amphibians, influencing metamorphic traits. Temperature patterns, as those observed in latitudinal and altitudinal clines, may impose different challenges on amphibians depending ...
GABRIELA ALVES-FERREIRA   +4 more
doaj   +1 more source

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