Results 41 to 50 of about 268,213 (316)

PCC-like induction of mitosis in Chara vulgaris antheridia initiating differentiation of spermatozoids in the darkness

open access: yesActa Societatis Botanicorum Poloniae, 2014
The objects of this research were the antheridial filament cells of Chara vulgaris which after 5-day mitodepressing treatment of the darkness reactivated mitosis (without light stimulation) in the result of the physiological state evocing the initiation ...
Maria Kwiatkowska
doaj   +1 more source

Dark Matter [PDF]

open access: yesBrazilian Journal of Physics, 2011
Abstract I give a review of the development of the concept of dark matter. The dark matter story passed through several stages from a minor observational puzzle to a major challenge for theory of elementary particles. Modern data suggest that dark matter is the dominant matter component in the Universe, and that it consists of some ...
openaire   +6 more sources

Demonología organizacional y saberes vampiros. El lado oscuro de las organizaciones. Un viaje guiado al inframundo organizacional [PDF]

open access: yesRevista Enfoques, 2012
This essay aims to explore and track the “dark side” of organizations. We are interested in the instinctual and hidden dynamics that influence organizing. The essay brings the unimaginable into the real of the imagination.
Reinhard Friedmann
doaj  

Is It the Dark in Dark Chocolate? [PDF]

open access: yesCirculation, 2007
When we first entered this scientific area about 10 years ago, we did not fully appreciate the emotional content of discussions involving chocolate. Contacts between medical scientists and the lay press tend to be sporadic. When chocolate is the issue, however, the lay press interest becomes intense and widespread.
Norman K. Hollenberg, Naomi D.L. Fisher
openaire   +2 more sources

Influence of Lighting and Laser Irradiation on the Germination of Caper Seeds

open access: yesAgriculture, 2022
Caper seeds present difficulties in their germination, which has been studied by several research teams. It is known that light can release dormancy in some seeds, but its effect on caper seed germination has not yet been deeply studied.
María Laura Foschi   +3 more
doaj   +1 more source

Network topology drives population temporal variability in experimental habitat networks

open access: yesPopulation Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu   +3 more
wiley   +1 more source

The Originality of Light and the Consequential Realization of Darkness based on Suhrawardi’s Perspective [PDF]

open access: yesحکمت اسرا, 2013
In addition to the discussion of light, Suhrawardi has also made some statements about the realization of darkness in the outside world in some of his works.
Mahmoud Hedayat Afza   +1 more
doaj  

Heterotopic Potential of Darkness: Exploration and Experimentation of Queer Space in Sarah Waters’s Neo-Victorian Trilogy

open access: yesHumanities, 2021
This article argues that darkness contributes to the creation of, and expands the concept of, heterotopias. In Sarah Waters’s neo-Victorian trilogy, consisting of Tipping the Velvet (1998), Affinity (1999), and Fingersmith (2002), her characters utilize ...
Akira Suwa
doaj   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

FoxO1 signaling in B cell malignancies and its therapeutic targeting

open access: yesFEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac   +3 more
wiley   +1 more source

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