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Asociația Ad Astra a anunțat câștigătorii Premiilor Ad Astra 2022: http://premii.ad-astra.ro/. Proiectul și-a propus identificarea și popularizarea modelelor de succes, a rezultatelor excepționale ale cercetătorilor români din țară și din afara ei.
Publicatii proprii
STUDIES TO SUPPORT THE PROCLAMATION OF PEONY AS ROMANIA’S NATIONAL FLOWER.
Many countries have one or more national flowers representative of the geographic area or culture and traditions. In Romania, several proposals have been made for choosing a national flower but none of the proposals has been finalized by a legislative act to formalize the national flower. The authors of this article suggest that peony be proclaimed Romania's national flower. Among the arguments of this proposal there are: peony species with high
Read more1H NMR spectroscopic characterization of inclusion complexes of tolfenamic and flufenamic acids with b-cyclodextrin
The complexation between the anionic forms of tolfenamic acid and flufenamic acid with b-cyclodextrin was investigated in solution by 1D and 2D proton NMR spectroscopy. The stoichiometry of the complexes was determined by the method of continuous variation using the chemical induced shifts of both the host and guest protons. An analysis of the spectroscopic data revealed that simultaneous inclusion of both rings of tolfenamic and flufenamic acids
Read moreThe mandibular ridge oral mucosa model of stromal influences on the endothelial tip cells: an immunohistochemical and TEM study.
This study aimed to evaluate by immunohistochemistry and transmission electron microscopy (TEM) the morphological features of the oral mucosa endothelial tip cells (ETCs) and to determine the immune and ultrastructural patterns of the stromal nonimmune cells which could influence healing processes. Immune labeling was performed on bioptic samples obtained from six edentulous patients undergoing surgery for dental implants placement; three normal
Read moreThe vascular layers on the rostral ventrolateral medulla.
There has been a keen interest in assessing the neurovascular anatomy of the rostral ventrolateral medulla oblongata (RVLM). The present study was aimed at documenting the complete neurovascular anatomy of the RVLM, in order to offer a general picture of the possible offending vessels of this area, which seems to be involved in the pathogeny of the essential hypertension. Noteworthy, syndromes of the last cranial nerves could be due to vascular contacts
Read moreEvidence of nNOS and ChAT positive phenotypes in nervous ganglia of the retrostyloid space.
The cholinergic and nitrergic phenotypes in human fetal ganglia (inferior) of the glossopharyngeal and vagus nerves were overlooked in basic research. Lack of a positive neuronal NO synthase (nNOS) phenotype in the inferior vagal fetal ganglion was recently suggested to be an individually variable phenotype. Choline acetyltransferase (ChAT) was not evaluated previously in ontogenesis. We aimed to evaluate these phenotypes in human midterm fetuses.
Read moreZipper-like series of desmosomes supported by subplasmalemmal actin belts in thymic epithelial reticular cells in the rat.
Remodeling of epithelial tissues requires coordinated cell migration. Most of the mechanisms regulating desmosome assembly and stability in migrating epithelial cells are still unknown. The actin cytoskeleton is a significant component of desmosome assembly and maturation. The association of the actin cytoskeleton with adherens junctions requires additional ultrastructural investigations. A transmission electron microscopic study was performed on
Read moreA 3D cone beam computed tomography study of the styloid process of the temporal bone.
BACKGROUND: To investigate the length and three-dimensional orientation and to detail the morphological variations of the styloid process. MATERIALS AND METHODS: Forty-four patients undergoing temporal bone evaluation for different reasons were randomly selected and included in the present study. The length, angulation in the coronal and sagittal planes, as well as morphological variations of the styloid processes were assessed using conebeam computer
Read moreHigh-pressure resistivity technique for quasi-hydrostatic compression experiments
Diamond anvil cell techniques are now well established and powerful methods for measuring materials properties to very high pressure. However, high pressure resistivity measurements are challenging because the electrical contacts attached to the sample have to survive to extreme stress conditions. Until recently, experiments in a diamond anvil cell were mostly limited to non-hydrostatic or quasihydrostatic pressure media other than inert gases. We
Read moreUpscaling the Biogeochemical Role of Arbuscular Mycorrhizal Fungi in Metal Mobility
In this chapter, we introduce a concept relating the biogeochemical role of microorganisms explicitly to cross-scale effects in the frame of an approach we termed objective scale integrated biogeochemistry. By objective, we mean that the scale of analyses is that of the environmental objects involved in the cycling and is not assumed a priori based on human (institutional) interests. By integrated, we refer to the consideration of multielement fluxes
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