Results 131 to 140 of about 47,672 (294)

L'avifaune du lac de Guiers [PDF]

open access: yes, 1991
Le projet EQUESEN sur l'environnement et la qualité des eaux du Sénégal bénéficie du soutien financier de la CEE, s'attache à prendre en compte tous les aspects de la biogéohydrodynamique globale du bassin versant du fleuve Sénégal; dans le parcours aval
Baillon, François, Gac, Jean-Yves
core  

Molecular mechanism of ischemic postconditioning in promoting diabetic ischemic brain injury repair via the microRNA‐34a–BDNF–SIX3 signaling axis

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao   +5 more
wiley   +1 more source

Astrocytic Mitochondria Transplantation Rescues Neuron Loss and Dendritic Injuries in Acute Cerebral Ischemic Stroke Mouse Model by Flexibly Regulating Mitochondria Dynamics

open access: yesAnnals of Neurology, EarlyView.
Objective Cerebral ischemic stroke causes neuronal oxygen/energy deprivation, disrupting mitochondrial function including reduced membrane potential and bioenergetics, exacerbating neuronal injury. Mitochondrial defects are, therefore, a central neuropathological node and potential therapeutic target.
Ning Bian   +9 more
wiley   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+2 more sources

Reproduction of the white‐tailed sea eagle Haliaeetus albicilla in Sweden

open access: yesEcography, 1985
Sixty‐eight white‐tailed sea eagle territories were studied on the Swedish Baltic coast in 1964–1982 and 22 territories in Swedish Lapland in 1976–1982. Older data were assembled for comparison. The breeding frequency of adult pairs was high in both study areas (ca. 90%). Median egg‐laying dates were 17 March (Baltic) and 7 April (Lapland).
openaire   +1 more source

Natural Aging of Biomaterials in Ambient and Physiological Environments

open access: yesAdvanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

Migration and Nesting of Eagles in the Upper Reaches of Angara River

open access: yesПернатые хищники и их охрана, 2018
The work was carried out in 2009–2018 in the sources of Angara river and adjacent areas, using commonly accepted methods of recording birds, adapted to local conditions (Ravkin, Chelintsev, 1990; Melnikov, 2016).
Yuri I. Melnikov
doaj  

Macrophage‐targeted cerium‐tannic acid metal‐polyphenol framework nanoenzyme promotes in situ heart valves regeneration through adaptive immunomodulation

open access: yesBMEMat, EarlyView.
A novel nanoenzyme based on cerium ions‐tannic acid metal‐polyphenol framework (FCT) has been developed and loaded onto DHVs for targeting M1 macrophages to reduce their ROS level and reprogram macrophage phenotype, thereby eliminating inflammation, promoting endothelialization and adaptive matrix remodeling of scaffolds, offering a promising strategy ...
Peng Song   +9 more
wiley   +1 more source

Carrier‐free self‐assembled nanomedicine for combination‐therapy of acute myeloid leukemia

open access: yesBMEMat, EarlyView.
CPDS combines drugs with three different mechanisms of action to achieve a multi‐mechanism combination therapy for AML by directly killing tumor cells and activating anti‐tumor immunity. Abstract As the main acute myeloid leukemia (AML) clinical treatment, the chemotherapy alone cannot meet the clinical therapeutic needs due to the high heterogeneity ...
Meihong Chai   +14 more
wiley   +1 more source

Events

open access: yesПернатые хищники и их охрана
White-Tailed Sea Eagle Conference 2024 “Strengthening White-tailed Eagle network toward Southern Europe and Mediterranean countries” was held on September 15–21, 2024 in Osijek, Croatia. IX International Conference on the Study and Conservation of Birds
Igor V. Karyakin, Elvira G. Nikolenko
doaj  

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