Results 21 to 30 of about 360,931 (201)

The genomic landscape of compensatory evolution. [PDF]

open access: yes, 2014
Adaptive evolution is generally assumed to progress through the accumulation of beneficial mutations. However, as deleterious mutations are common in natural populations, they generate a strong selection pressure to mitigate their detrimental effects ...
Boross, Gábor   +13 more
core   +2 more sources

Excessive plant compensatory growth: a potential endogenous driver of meadow degradation on the Qinghai-Tibetan Plateau

open access: yesEcosystem Health and Sustainability, 2020
Degradation of meadow ecosystems in the largest alpine region of the world, i.e., the Qinghai-Tibetan Plateau (QTP), is a crucial ecological issue that has ardently discussed in recent years.
Yong Zhang   +3 more
doaj   +1 more source

Effect of Photoperiod and Transfer Time on Atlantic Salmon Smolt Quality and Growth in Freshwater and Seawater Aquaculture Systems

open access: yesFishes, 2023
Smoltification is a key process in Atlantic salmon aquaculture, given it prepares the fish for a successful transit from fresh to seawater. However, industry players have not yet reached a consensus on the best protocols to produce high-quality smolts ...
Enrique Pino Martinez   +3 more
doaj   +1 more source

Resource availability and repeated defoliation mediate compensatory growth in trembling aspen (Populus tremuloides) seedlings [PDF]

open access: yes, 2014
Plant ecologists have debated the mechanisms used by plants to cope with the impact of herbivore damage. While plant resistance mechanisms have received much attention, plant compensatory growth as a type of plant tolerance mechanisms has been less ...
Ahmed Najar   +3 more
core   +1 more source

Differential vascular growth in postpneumonectomy compensatory lung growth [PDF]

open access: yesThe Journal of Thoracic and Cardiovascular Surgery, 2007
After pneumonectomy, compensatory growth occurs in the remaining lung. The vascular response during this growth and how individual lobes of the lung respond are not well understood. The aim of our study was to characterize vascular growth among individual lobes of the lung after pneumonectomy and determine whether changes in relative blood flow ...
Fernandez, Lucas G.   +5 more
openaire   +2 more sources

Arteriogenesis versus angiogenesis: similarities and differences [PDF]

open access: yes, 2007
Cardiovascular diseases account for more than half of total mortality before the age of 75 in industrialized countries. To develop therapies promoting the compensatory growth of blood vessels could be superior to palliative surgical surgical ...
Eitenmüller, Inka   +3 more
core   +1 more source

Effects of a phytogenic feed additive on weaned dairy heifer calves subjected to a diurnal heat stress bout

open access: yesJournal of Dairy Science, 2023
: The study objective was to evaluate the effects of a phytogenic feed additive (PFA) on dry matter intake (DMI), average daily gain (ADG), inflammation, and oxidative stress markers of heifer calves exposed to a heat stress bout in the summer.
H.K.J.P. Wickramasinghe   +7 more
doaj   +1 more source

Altered response of adenylate cyclase to parathyroid hormone during compensatory renal growth [PDF]

open access: yes, 1989
Altered response of adenylate cyclase to parathyroid hormone during compensatory renal growth. The loss of renal mass is associated with functional adaptations in the remaining nephrons to maintain homeostasis.
Milanes, Carmen L.   +5 more
core   +1 more source

Adenosine and compensatory renal growth

open access: yesKidney International, 1983
The initiating factor(s) which triggers compensatory renal growth (CRG) or the nature of regulator(s) activated following the loss of kidney mass is still unknown. The existence of a negative feedback mechanism [1–3] and of stimulating factor(s) present in normal urine [4, 5] and plasma of unilaterally nephrectomized mammals [6–10] have been suggested.
Bergeron, Michel   +2 more
openaire   +2 more sources

Autocrine Activation of the MET Receptor Tyrosine Kinase in Acute Myeloid Leukemia [PDF]

open access: yes, 2012
Although the treatment of acute myeloid leukemia (AML) has improved significantly, more than half of all patients develop disease that is refractory to intensive chemotherapy.
A Burnett   +45 more
core   +1 more source

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