Biologia reprodutiva e variação geográfica de Zachaenus carvalhoi (Anura: Cycloramphidae), um anuro da Mata Atlântica

Information is presented on the reproductive biology, habitat, behavior, morphology, and variation in advertisement call in Zachaenus carvalhoi, a rare frog for which basic natural history data are lacking. The species inhabits forest leaf litter in the states of Minas Gerais and Espírito Santo in southeastern Brazil. Reproductive individuals were found from October to December; females are slightly larger than males. The International Union for Conservation of Nature currently lists Zachaenus carvalhoi as Data Deficient. We suggest transferring the species to the Near Threatened category based on the IUCN criteria A2 because of the decline of the size and quality of its severely fragmented habitatApresentamos aqui informações sobre biologia reprodutiva, habitat, comportamento, morfologia e variação no canto de anúncio de Zachaenus carvalhoi, um anuro raro para o qual dados básicos de história natural são escassos. A espécie habita o folhiço de florestas nos estados de Minas Gerais e Espírito Santo, sudeste do Brasil. Indivíduos em estado reprodutivo são encontrados de outubro a dezembro, e as fêmeas são pouco maiores que os machos. A União Internacional para a Conservação da Natureza atualmente inclui Zachaenus carvalhoi na categoria Dados Deficientes. Sugerimos transferir a espécie para a categoria Quase Ameaçada, baseados no Critério A2, que inclui diminuição contínua da extensão e qualidade do seu habitat, já severamente fragmentad

Drying microalgae using an industrial solar dryer: a biomass quality assessment

Microalgae are considered a promising resource of proteins, lipids, carbohydrates, and other functional biomolecules for food and feed markets. Competitive drying solutions are required to meet future demands for high-quality algal biomass while ensuring proper preservation at reduced costs. Since often used drying methods, such as freeze or spray drying, are energy and time consuming, more sustainable processes remain to be developed. This study tested an indirect and hybrid solar dryer as an alternative to conventional freeze drying of industrially produced Tetraselmis chui and Nannochloropsis oceanica wet paste. The effects of the drying method on biomass quality parameters, including biochemical profiles, functional properties, and microbial safety, were assessed. No significant differences were found between the applied drying technologies for total proteins, carbohydrates, lipids, and fatty acid profiles. On the other hand, some pigments showed significant differences, displaying up to 44.5% higher contents in freeze-dried samples. Minor differences were also registered in the mineral profiles (<10%). Analyses of microbial safety and functional properties of the solar-dried biomass appear adequate for food and feed products. In conclusion, industrial solar drying is a sustainable technology with a high potential to preserve high-quality microalgal biomass for various markets at expected lower costs.info:eu-repo/semantics/publishedVersio

Introduction

Depuis La Chanson de Roland (pour ne pas remonter à la mythique Guerre de Troie) jusqu’à l’écriture dramatique de Vinaver, la Guerre constitue un thème majeur de la littérature en français : Guerre transformée en épopée romanesque (Balzac, Hugo, Stendhal), Guerre réfutée au nom de l’idéal pacifiste (Giraudoux) et Guerre dépeinte dans toute la cruauté de ses détails (Malraux). Le rapport entre littérature et Guerre s’est profondément modifié au fil des siècles, la question de sa représentatio..

Introduction

Depuis La Chanson de Roland (pour ne pas remonter à la mythique Guerre de Troie) jusqu’à l’écriture dramatique de Vinaver, la Guerre constitue un thème majeur de la littérature en français : Guerre transformée en épopée romanesque (Balzac, Hugo, Stendhal), Guerre réfutée au nom de l’idéal pacifiste (Giraudoux) et Guerre dépeinte dans toute la cruauté de ses détails (Malraux). Le rapport entre littérature et Guerre s’est profondément modifié au fil des siècles, la question de sa représentatio..

Zika Virus Disrupts Phospho-TBK1 Localization and Mitosis in Human Neuroepithelial Stem Cells and Radial Glia

Graphical Abstract Highlights d Derivation of human neocortical and spinal cord neuroepithelial stem (NES) cells d Zika virus (ZIKV) infects NES cells and radial glia, impairing mitosis and survival d ZIKV induces mitochondrial sequestration of centrosomal phospho-TBK1 d Nucleoside analogs inhibit ZIKV replication, protecting NES cells from cell death In Brief Onorati et al. establish neuroepithelial stem (NES) cells as a model for studying human neurodevelopment and ZIKV-induced microcephaly. Together with analyses in human brain slices and microcephalic human fetal tissue, they find that ZIKV predominantly infects NES and radial glial cells, reveal a pivotal role for pTBK1, and find that nucleoside analogs inhibit ZIKV replication, protecting NES cells from cell death

First observation of Bs -> D_{s2}^{*+} X mu nu decays

Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays Bs -> Ds+ X mu nu and Bs -> D0 K+ X mu nu are detected. Two structures are observed in the D0 K+ mass spectrum at masses consistent with the known D^+_{s1}(2536) and $D^{*+}_{s2}(2573) mesons. The measured branching fractions relative to the total Bs semileptonic rate are B(Bs -> D_{s2}^{*+} X mu nu)/B(Bs -> X mu nu)= (3.3\pm 1.0\pm 0.4)%, and B(Bs -> D_{s1}^+ X munu)/B(Bs -> X mu nu)= (5.4\pm 1.2\pm 0.5)%, where the first uncertainty is statistical and the second is systematic. This is the first observation of the D_{s2}^{*+} state in Bs decays; we also measure its mass and width.Comment: 8 pages 2 figures. Published in Physics Letters