Search results for "basi"
showing 10 items of 12854 documents
A new approach to the Late Miocene-Early Pliocene forms of the genus Apocricetus. Apocricetus alberti (Rodentia, Mammalia) from Venta del Moro (Cabri…
2014
Abstract The species of the genus Apocricetus are considered to form the phyletic lineage A. aff. plinii (MN11)– A. plinii – A. alberti – A. barrierei – A. angustidens (MN16). Along this lineage, gradual morphological and biometrical changes occur, but not all the species are represented by rich populations. The assemblage of Apocricetus alberti from Venta del Moro is by far the most abundant collection of this species. This population shows a great morphological variability in some characters like the morphology of the anteroconid and the anterolophulids in m1 and the shape of the anterolophule in M1, with morphotypes that resemble both older and younger populations of Apocricetus . Along …
Using Social Simulations in Interdisciplinary Primary Education: An Expert Appraisal
2020
Many people recognize that teaching basic skills in primary schools (reading, writing, and arithmetic) is no longer sufficient for pupils in the digital age. Therefore, governments now increasingly ask schools to add other skills (oral, digital) and to create connections between subjects (e.g., use mathematics in history lessons). In this study, we explored how social simulations can be used in primary education to meet these new goals. We conducted an expert appraisal (a qualitative Delphi method) with four experts specializing in innovating primary education. We selected three simulations that were freely available on the web, relevant for pupils’ lives and had a limited number of paramet…
Distortion product otoacoustic emissions in healthy newborns: normative data.
1995
Distortion product otoacoustic emissions (DPOAE) offer an alternative to transiently evoked otoacoustic emissions (TEOAE) as an audiological test. The former can be used as a screening technique, and may also provide frequency-specific information about the functional state of the cochlea. We recorded DPOAE in a group of healthy newborns to establish the Characteristics of a DPOAE “audiogram” (DP-gram) in this population. The DP-gram can be obtained with characteristics quite similar to those observed in adults, with two sharp peaks of maximum amplitude at F2 frequencies of 2 kHz and 5-6 kHz, and a decline in DPOAE amplitude in mid frequencies. The results confirm the limitations of DPOAE r…
Phlebiopsis gigantea ietekme uz Heterobasidion spp. augļķermeņu attīstību skuju koku koksnē
2019
Sakņu piepe Heterobasidion spp. ir būtisks saimniecisko skuju koku mežu patogēns, kas izraisa dzīvu koku trupi un rada lielus ekonomiskos zaudējumus. Būtiska nozīme sakņu piepes attīstībai un izplatībai ir trupējušas koku atliekas un celmi, uz kuriem attīstās sēnes augļķermeņi un izplata sporas. Sēnes izplatības ierobežošanai, tiek pielietoti dažādi augu aizsardzības līdzekļi un apsaimniekošanas metodes. Kā viens no efektīvākajiem un videi draudzīgākajiem preparātiem, kas tiek pielietots Eiropas un arī Latvijas mežos ir lielās pergamentsēnes Phlebiopsis gigantea sporas saturošs aizsardzības līdzeklis ar kuru kopšanas cirtē tiek apstrādāti svaigi zāģēti skuju koku celmi. Šī darba mērķis bija…
Electromagnetic wave propagation in non-homogeneous waveguides
2015
We investigate an electromagnetic waveguide, having several cylindrical ends. The waveguide is assumed to be empty and to have a perfectly conductive boundary. We study the electromagnetic field, excited in the waveguide in the presence of charges and currents. The field can be described as a solution of the stationary Maxwell system with conductive boundary conditions and “intrinsic” radiation conditions at infinity. We prove the problem to be well-posed. Electromagnetic waves propagation in the waveguide can be described by means of a scattering matrix. We introduce such a matrix for all values of the spectral parameter k in the waveguide continuous spectrum and study its properties. Moreove…
Justice in transitions: Widening considerations of justice in dietary transition
2021
Just transition is gaining increasing attention. The need to consider social justice in sustainability transitions is finally being acknowledged. Research on this issue has, to date, mainly concentrated on energy systems. In this paper, we examine how the elaboration of dietary transition widens the spectrum of justice questions in sustainability transitions research. We explicate the arising normative questions along the dimensions of distributive, procedural and recognitive justice; widening the considerations further to restorative and cosmopolitan justice. Dietary transition widens the justice considerations to basic needs, food security and nutrition. By doing so, it evokes socio-cultu…
Toward Comprehensive Plant Microbiome Research
2020
Microbes have driven eco-evolutionary adaptations organizing biodiversity from the origin of life. They are ubiquitous and abundant, facilitating the biochemical processes that make Earth habitable and shape ecosystem structures, functions, and services. Recent studies reveal that commensalistic and beneficial microbes associated with wild and domesticated plants may aid in establishing sustainable agriculture for a changing climate. However, developing microbe-based biotechnologies and ecosystem services requires a thorough understanding of the diversity and complexity of microbial interactions with each other and with higher organisms. We discuss the hot and blind spots in contemporary re…
A Reassessment of the Therapeutic Potential of a Dopamine Receptor 2 Agonist (D2-AG) in Endometriosis by Comparison against a Standardized Antiangiog…
2021
Dopamine receptor 2 agonists (D2-ags) have been shown to reduce the size of tumors by targeting aberrant angiogenesis in pathological tissue. Because of this, the use of a D2-ag was inferred for endometriosis treatment. When assayed in mouse models however, D2-ags have been shown to cause a shift of the immature vessels towards a more mature phenotype but not a significant reduction in the amount of vascularization and size of lesions. These has raised concerns on whether the antiangiogenic effects of these compounds confer a therapeutic value for endometriosis. In the belief that antiangiogenic effects of D2-ags in endometriosis were masked due to non-optimal timing of pharmacological inte…
Interplay Between MicroRNAs and Oxidative Stress in Ovarian Conditions with a Focus on Ovarian Cancer and Endometriosis
2019
Ovarian cancer and endometriosis are two distinct gynaecological conditions that share many biological aspects incuding proliferation, invasion of surrounding tissue, inflammation, inhibition of apoptosis, deregulation of angiogenesis and the ability to spread at a distance. miRNAs are small non-coding RNAs (19–22 nt) that act as post-transcriptional modulators of gene expression and are involved in several of the aforementioned processes. In addition, a growing body of evidence supports the contribution of oxidative stress (OS) to these gynaecological diseases: increased peritoneal OS due to the decomposition of retrograde menstruation blood facilitates both endometriotic lesion developmen…
Sildenafil inhibits the proliferation of cultured human endothelial cells.
2013
The proliferation of endothelial cells plays a crucial role in the development of intraplaque angiogenesis (IPA). IPA is a major source of intraplaque hemorrhage and therefore contributes to the destabilization of atherosclerotic plaques. Therefore, the aim of the present study was to examine, whether sildenafil inhibits endothelial cell growth. The proliferation of human endothelial cells derived from umbilical cord veins (HUVEC) was examined on DNA level by measurements of (3H)-thymidine incorporation. Cell viability was analyzed using trypan blue staining. The proliferation of cultured human endothelial cells was significantly decreased by 1 μmol/l (-48.4%) and 10 μmol/l (-89.6%) sildena…