Results 91 to 100 of about 11,764,337 (376)

Megadomains and superloops form dynamically but are dispensable for X-chromosome inactivation and gene escape

open access: yesNature Communications, 2018
The mammalian inactive X-chromosome (Xi) is organized into megadomains and superloops directed by the noncoding loci, Dxz4 and Firre. Here the authors provide evidence that megadomains do not precede Xist expression or Xi gene silencing, and suggest that
John E. Froberg   +4 more
doaj   +1 more source

Developing a Web-Based Learning (E-Learning) in General Biology Subjects with Joomla Program

open access: yesBiosfer, 2018
Web-based learning has been widely used as learning resources. Developing these learning resources is believed to provide beneficial for students. Therefore, this research was aimed to develop a web-based learning source for General Biology Course.
Muhamad Nurdin Matondang Seribulan   +2 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Imaging Therapeutic PARP Inhibition In Vivo through Bioorthogonally Developed Companion Imaging Agents

open access: yesNeoplasia: An International Journal for Oncology Research, 2012
A number of small-molecule poly (ADP-ribose) polymerase (PARP) inhibitors are currently undergoing advanced clinical trials. Determining the distribution and target inhibitory activity of these drugs in individual subjects, however, has proven ...
Thomas Reiner   +7 more
doaj   +1 more source

Scientific Knowledge in Aristotle’s Biology [PDF]

open access: yes, 2015
Aristotle was the first thinker to articulate a taxonomy of scientific knowledge, which he set out in Posterior Analytics. Furthermore, the “special sciences”, i.e., biology, zoology and the natural sciences in general, originated with Aristotle.
Botter, Barbara
core  

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

Happy 100th, structural biology [PDF]

open access: yesStructural Dynamics
About 100 years ago, the field of structural biology was born, led by James B. Sumner who recognized that enzymes were molecules with specific functions.
George N. Phillips, Jr.   +1 more
doaj   +1 more source

Negative Energy: Why Interdisciplinary Physics Requires Multiple Ontologies

open access: yes, 2013
Much recent work in physics education research has focused on ontological metaphors for energy, particularly the substance ontology and its pedagogical affordances.
Dreyfus, Benjamin W.   +5 more
core   +1 more source

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

open access: yesFEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga   +3 more
wiley   +1 more source

An overview of gravitational physiology [PDF]

open access: yes
The focus of this review is on the response of humans and animals to the effects of the near weightless condition occurring aboard orbiting spacecraft. Gravity is an omnipresent force that has been a constant part of our lives and of the evolution of all
Miquel, Jaime, Souza, Kenneth A.
core   +1 more source

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