Results 21 to 30 of about 1,559,469 (190)

Organ Size Control: Lessons from Drosophila. [PDF]

open access: yesDev Cell, 2015
Of fundamental interest to biologists is how organs achieve a reproducible size during development. Studies of the developing Drosophila wing have provided many key insights that will help give a conceptual understanding of the process beyond the fly. In the wing, there is evidence for both "top-down" mechanisms, in which signals emanating from small ...
Hariharan IK.
europepmc   +6 more sources

Review: Seasonal differences in the physiology of wild northern ruminants

open access: yesAnimal, 2020
Ruminants living in seasonal environments face a two-fold challenge during winter. The energetic cost of maintaining a high body temperature is higher at lower ambient temperatures, and this is compounded by poor availability and quality of feed.
W. Arnold
doaj   +1 more source

SCFSAP controls organ size by targeting PPD proteins for degradation in Arabidopsis thaliana [PDF]

open access: yes, 2016
Control of organ size by cell proliferation and growth is a fundamental process, but the mechanisms that determine the final size of organs are largely elusive in plants. We have previously revealed that the ubiquitin receptor DA1 regulates organ size by
Gonzalez Sanchez, Nathalie   +7 more
core   +3 more sources

Geographical variation of organ size in Andrew’s toad (Bufo andrewsi)

open access: yesFrontiers in Ecology and Evolution, 2022
Phenotypic variation of morphological and physiological traits is assumed to be generated from spatial heterogeneity in environments, and it has been regarded as an important concern domain in evolutionary biology.
Xin Zhu   +14 more
doaj   +1 more source

A Feedback Loop Controlling Organ Size [PDF]

open access: yesDevelopmental Cell, 2019
To maintain proper organ size, nature has devised trans-organ communication systems-involving both paracrine and circulating regulatory factors-to safeguard homeostasis. In this issue of Developmental Cell, Ji et al. (2019) now describe an enterohepatic feedback loop that balances tissue size and function in the mammalian liver.
Allyson J, Merrell, Ben Z, Stanger
openaire   +2 more sources

Assessment of Breast Volume Change after Transverse Rectus Abdominis Myocutaneous Flap [PDF]

open access: yesArchives of Plastic Surgery, 2012
Background The evaluation of a breast after breast reconstruction depends on a surgeon's subjective criteria. We used computed tomography (CT) scans to obtain an objective evaluation of the postoperative results by measuring the breast volume of ...
Sang Uk Park, Jeong Su Shim
doaj   +2 more sources

Determining the Thyroid Gland Volume Causing Tracheal Compression: A Semiautomated 3D CT Volumetry Study

open access: yesMedicina, 2019
Background and objectives: Increased thyroid gland volume (TV) may bring about tracheal compression, which is one of the causes of respiratory distress.
Murat Binar   +8 more
doaj   +1 more source

Electrochemical Sizing of Organic Nanoparticles

open access: yesAngewandte Chemie International Edition, 2013
The size of organic nanoparticles (NPs) can be electrochemically determined by Faradaic charge transfer when nanoparticles strike an electrode. Indigo NPs were used as a model (see distribution of the NP diameter). This strategy could be used for monitoring the size of a wide range of organic nanoparticles.
Wei Cheng   +2 more
openaire   +3 more sources

Peso dos ventrículos cardíacos determinado em necropsia de indivíduos saudáveis mortos por causas externas Cardiac ventricular weights recorded at the autopsy of healthy subjects who died of external causes

open access: yesArquivos Brasileiros de Cardiologia, 2007
OBJETIVO: Determinar o peso dos ventrículos cardíacos em necropsia de indivíduos sadios vítimas de morte acidental, visando determinar padrões de normalidade em nossa população.
Sérgio Lamêgo Rodrigues   +2 more
doaj   +1 more source

Double Mutant Analysis with the Large Flower Mutant, ohbana1, to Explore the Regulatory Network Controlling the Flower and Seed Sizes in Arabidopsis thaliana

open access: yesPlants, 2021
Two growth processes, cell proliferation and expansion, determine plant species-specific organ sizes. A large flower mutant in Arabidopsis thaliana, ohbana1 (ohb1), was isolated from a mutant library.
Vuong Quoc Nhat   +6 more
doaj   +1 more source

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