Results 121 to 130 of about 10,229,767 (397)

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

open access: yesFEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source

The world of learning

open access: yesJournal of Open, Flexible and Distance Learning, 2012
Column about conferences events and new publications in distance learning.
Glenise Dreaver, Terry Hearn
doaj   +2 more sources

Authenticity of Ficus Hispida as a Local Traditional Product in the Lembah Lenggong World Heritage Site

open access: yesSHS Web of Conferences, 2014
Lembah Lenggong is a place well known amongst locals as an archaeological site; the valley has been attested as a World Heritage Site. There is an overwhelming variety of plant species that are uniquely used in their cultural and traditional cuisines ...
Abd Aziz Siti Hajar   +2 more
doaj   +1 more source

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Lorentzian Connes Distance, Spectral Graph Distance and Loop Gravity

open access: yes, 2014
Connes' formula defines a distance in loop quantum gravity, via the spinfoam Dirac operator. A simple notion of spectral distance on a graph can be extended do the discrete Lorentzian context, providing a physically natural example of Lorentzian spectral
Rovelli, Carlo
core   +1 more source

Statistical Distance For Chaotic Maps [PDF]

open access: yesarXiv, 1998
The purpose of this letter is to define a distance on the underlying phase space of a chaotic map, based on natural invariant density of the map. It is observed that for logistic map this distance is equivalent to Wootters' statistical distance. This distance becomes the Euclidean distance for a map with constant invariant density.
arxiv  

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

open access: yesFEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp   +5 more
wiley   +1 more source

Exploring students’ experiences with authentic assessment in an online learning context

open access: yesInternational Journal of Educational Management and Development Studies
Authentic assessment brings a new dimension to assessment where learning and assessment are linked to genuine workplace environments. In this assessment, students apply knowledge and skills to solve real and felt workplace problems.
Cosmas Maphosa   +2 more
doaj   +1 more source

Parallel Algorithms for Real-Time GPGPU Volumetric Cloud Dynamics and Morphing

open access: yesJournal of Applied Computer Science & Mathematics, 2019
Real-Time rendering of reliable clouds has become indispensable for state-of-the art multimedia applications. However, the cost of real-time for this natural phenomena has been a challenge in the last decades. This paper presents a new approach for cloud
Carlos JIMÉNEZ DE PARGA   +1 more
doaj   +1 more source

The spectral excess theorem for distance-biregular graphs [PDF]

open access: yesarXiv, 2013
The spectral excess theorem for distance-regular graphs states that a regular (connected) graph is distance-regular if and only if its spectral-excess equals its average excess. A bipartite graph is distance-biregular when it is distance-regular around each vertex and the intersection array only depends on the stable set such a vertex belongs to.
arxiv  

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