Dynamic DNA-Methylation of Retrotransposons in Rue under Drought Stress

Ruta graveolens (rue) is plant native to the Mediterranean region and presents in traditional medicine of this region since ancient times. There is poor information about the genome of Ruta and repetitive sequences and active mobile genetic elements have not been identified yet. Since rue genome is still mostly unexplored, and proliferative capability and large size of transposons make them key contributors to genome size and evolution, we aimed to isolate and characterize transposon sequences with a view to better understanding rue genome. We have isolated novel types of Ty1-copia like LTR reverse transcriptase from Ruta graveolens, leading to investigation of the genomic organization and phylogenetic relationships. Since the activation of transposable elements in response to environmental changes represents a form of adaptive response to biotic stress, we investigated if drought stress could influence transposon methylation and if the extent of methylation has been related to expression level. The results can have implications for rue genome understanding and their potential impact on Ruta evolution

The Endoplasmic Reticulum Glucosyltransferase Recognizes Nearly Native Glycoprotein Folding Intermediates

The UDP-Glc:glycoprotein glucosyltransferase (GT), a key player in the endoplasmic reticulum (ER) quality control of glycoprotein folding, only glucosylates glycoproteins displaying non-native conformations. To determine whether GT recognizes folding intermediates or irreparably misfolded species with nearly native structures, we generated and tested as GT substrates neoglycoprotein fragments derived from chymotrypsin inhibitor 2 (GCI2) bearing from 53 to 64 (full-length) amino acids. Fragment conformations mimicked the last stage-folding structures adopted by a glycoprotein entering the ER lumen. GT catalytic efficiency (V(max)/K(m)) remained constant from GCI2-(1-53) to GCI2-(1-58) and then steadily declined to reach a minimal value with GCI2-(1-64). The same parameter showed a direct hyperbolic relationship with solvent accessibility of the single Trp residue but only in fragments exposing hydrophobic amino acid patches. Mutations introduced (GCI2-(1-63)V63S and GCI2-(1-64)V63S) produced slight structural destabilizations but increased GT catalytic efficiency. This parameter presented an inverse exponential relationship with the free energy of unfolding of canonical and mutant fragments. Moreover, the catalytic efficiency showed a linear relationship with the fraction of unfolded species in water. It was concluded that the GT-derived quality control may be operative with nearly native conformers and that no alternative ER-retaining mechanisms are required when glycoproteins approach their proper folding.Fil: Caramelo, Julio Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Castro, Olga Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: de Prat Gay, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Parodi, Armando José A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentin

Leaf and stem anatomy in eight Hypericum species (Clusiaceae)

Foliar micromorphology, epicuticular wax morphology and anatomical featuresof leaves and stem, particularly secondary xylem, were examined with light microscopy,general and histochemical staining and scanning electron microscopy in eightHypericum species. Outer tegument tissue and type of secondary xylem are determiningcharacteristics. Secondary xylem is ring-porous in H. perforatum, H. perfoliatum, H. tetrapterum, H. triquetrifolium, H. androsaemum and H. hircinum. In H. aegypticum and H. pubescens xylem is diffuse-porous, which is considered to be a more primitive type.These characteristics may be considered an additional criterion for species identification

Allium ducissae (A. subgen. Polyprason, Amaryllidaceae) a New Species from the Central Apennines (Italy)

In this paper, Allium ducissae (the LSID for the name Allium ducissae is: 77254606-1) is described as a new species based on morphological and molecular analyses, and its taxonomic relationships are discussed. It grows in crevices on calcareous rocks, rocky slopes and grassy ledges in the subalpine belt, within two regional protected areas in the Lazio and Abruzzo administrative regions (Central Apennines, Italy). Previously, these populations were attributed to A. strictum, a species described from Siberia, belonging to A. sect. Reticulatobulbosa. The new species is distinct from A. strictum in the morphology of vegetative and reproductive structures. Indeed, it is close to A. palentinum, an endemic species to Cantabrian Mountains (NW Spain). Both molecular and morphological data support the recognition of the Allium populations coming from the Central Apennines as a new species. Allium ducissae can be clearly distinguished from A. palentinum by longer and wider tepals, longer filaments, tooth of inner filament, flower pedicels, spathe appendage, and smaller seeds. Moreover, seed testa micro-sculptures revealed slight differences between A. ducissae and A. palentinum. Chromosome counts showed that A. ducissae is diploid with 2n = 16 chromosomes, as already known for A. palentinum. Molecular analyses support the affiliation of A. ducissae and A. palentinum to A. sect. Falcatifolia, contrary to what is known for the latter species, usually included in A. sect. Daghestanica. Finally, the IUCN assessment for the newly described species is proposed and briefly discussed

Entropia e uniformidade são parâmetros adicionais para avaliação óssea por tomografia computadorizada em pacientes com acromegalia

Tese (Doutorado)—Universidade de Brasília, Faculdade de Ciências da Saúde, 2020.A acromegalia é considerada uma causa importante de osteoporose secundária. No entanto, estudos sobre densidade mineral óssea (DMO) têm demonstrado resultados conflitantes e até o momento faltam estudos que avaliem um método de imagem preciso para o diagnóstico precoce da osteoporose nesses pacientes. O objetivo deste estudo foi avaliar se entropia e uniformidade na tomografia computadorizada (TC) são parâmetros úteis para otimizar a avaliação da fragilidade óssea em pacientes com acromegalia. Para isso foram reunidos 34 pacientes e 36 controles pareados por idade, sexo e fatores de risco de desmineralização óssea em um estudo transversal. O grupo acromegálico apresentou maior entropia óssea média (6,87 ± 0,98 vs. 6,03 ± 1,68, p = 0,013) e menor uniformidade óssea média (0,035 ± 0,704 vs. 0,1113 ± 0,205, p = 0,035) que o grupo controle. Analisando apenas acromegálicos, a entropia óssea média foi maior e a uniformidade óssea foi menor em pacientes com hipogonadismo do que em pacientes sem hipogonadismo (7,28 ± 0,36 vs. 6,74 ± 1,08, p = 0,038 e 0,008 ± 0,002 vs. 0,043 ± 0,079, p = 0,031), respectivamente. Pacientes com acromegalia apresentaram maior DMO e Z-score no colo do fêmur que no grupo controle (1,156 ± 0,108 vs. 0,925 ± 0,326 g \ cm2, p = 0,043 e 0,6 ± 0,6 vs. -0,05 ± 0,8, p = 0,041, respectivamente). O estudo identificou que entropia e uniformidade são parâmetros relevantes na avaliação da fragilidade óssea em pacientes acromegálicos.Acromegaly is considered an important cause of secondary osteoporosis. However, studies on bone mineral density (BMD) have yielded conflicting results and there are few studies that evaluate an accurate imaging method for early diagnosis of osteoporosis in these patients. The objective of this study was to assess whether entropy and uniformity on computed tomography (CT) scans are useful parameters for optimization of assessment of bone fragility in patients with acromegaly. We included 34 patients and 36 controls matched for age, sex and risk factors of bone demineralization in a cross-sectional study. Patients and controls underwent CT scan of the lumbosacral spine, dual-energy X-ray absormetry (DXA) and blood tests.A software was developed to calculate the entropy and uniformity by a region of interest (ROI) of the trabecular bone of the first lumbar vertebra (L1). The acromegalic group presented higher mean bone entropy (6.87 ± 0.98 vs. 6.03 ± 1.68, p=0.013) and lower mean bone uniformity (0.035 ± 0.704 vs. 0.1133 ± 0.205, p=0.035) than control group. Analyzing only acromegalics, mean bone entropy was higher and bone uniformity was lower in patients with hypogonadism than patients without hypogonadism (7.28 ± 0.36 vs. 6.74 ± 1.08, p=0.038 and 0.008 ± 0.002 vs. 0.043 ± 0.079, p=0.031) respectively. Patients with acromegaly presented higher BMD and Z- score in the femoral neck than control group (1.156 ± 0.108 vs. 0.925 ± 0.326 g\cm2 , p=0.043 and 0.6 ± 0.6 vs. -0.05 ± 0.8, p= 0.041, respectively). The study identified that entropy and uniformity are a relevant parameters data in bone fragility assessment in acromegalic patients

A colaboração premiada e a violação dos direitos e garantias fundamentais

A presente monografia objetiva realizar análise acerca da colaboração premiada prevista na Lei 12.850/13 e a sua compatibilidade com os direitos e garantias fundamentais previstos da Constituição Federal de 1988. Primeiramente, pretende-se analisar as origens da justiça negocial penal, sua definição e suas principais formas de manifestação processuais. Em seguida, será realizada uma análise sobre os contornos da colaboração premiada no Brasil, seus antecedentes legislativos, seus requisitos de validade e as renúncias e obrigações assumidas pelo colaborador. Por último serão feitas críticas à colaboração premiada, baseadas nas incompatibilidades encontradas da mesma com a ordem constitucional vigente

Performance analysis of a multijunction solar cell operating under natural conditions and various concentration rates

El desempeño de una celda fotovoltaica multiunión con 1,0 cm2 es evaluado para varias tasas de concentración. Parámetros que caracterizan la celda son extraídos de curvas características obtenidas experimentalmente con base en el modelo de un diodo. Especial atención es dedicada a resistencia serie de la celda. Resultados demuestran que el procedimiento es consistente, permitiendo obtener una visión general del comportamiento de las celdas multiunión, a pesar de grandes variaciones experimentales de temperatura y radiación. Se observa una alta resistencia serie (3,8 Ω) para baja concentración. Esta resistencia disminuye, alcanzando un valor estable para altas concentraciones (0,024 Ω). Se han medido eficiencias promedio de conversión del 35% cuando se convierte la temperatura de referencia. La resistencia serie obtenida para altas concentraciones limita el índice de concentración que corresponde a máxima eficiencia entre 243 y 278. Mayores índices de concentración y probablemente eficiencias superiores requieren mayor reducción de la resistencia serie.The performance of a CPV multijunction (MJ) cell of 1.0 cm2 was evaluated for various concentration ratios. Parameters which characterize the cell were extracted from experimental characteristic curves using the one diode model. Special attention was given to series resistance which effects can change significantly the cell performance. Results obtained show that the procedure adopted is considerably consistent, enabling to obtain a general picture of solar cell behavior in spite of large temperature and irradiance experimental variations. A large series resistance (3.8 Ω) is observed for low concentration values. This resistance decays rapidly, attaining a stable value for high concentrations (0.024 Ω). Average conversion efficiency of 35% have been measured when converted to temperatures of 47 ºC. Series resistance obtained for high concentrations limits concentration ratio corresponding to maximum efficiency to values between 243 and 278. Higher concentration ratios and probably higher efficiencies require further reduction of series resistance.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Genetic diversity and origin of the rare, narrow endemic Asperula crassifolia (Rubiaceae)

We examined the patterns of genetic variation in the narrow endemic Asperula crassifolia (Campania, southern Italy), taking into account the schizoendemic distribution of the Mediterranean members of Asperula sect. Cynanchicae. We obtained plastid DNA sequences of the rps16 intron and the trnC-petN intergenic spacer for several members of A. sect. Cynanchicae, for three living populations (48 individuals) and ten herbarium specimens of A. crassifolia. We also analysed nSSR data for A. crassifolia, to infer population diversity and differentiation. Our results suggest that the centre of diversity of A. crassifolia is the island of Capri, where A. crassifolia harbours four different ptDNA haplotypes, two of which are shared with other species of sect. Cynanchicae. Microsatellite analyses revealed low levels of genetic diversity for the mainland population (Nerano, Sorrentine Peninsula) and the neighbouring Sirenusae islets. Diversity in A. crassifolia is mainly explained by ancestral variation and recent divergence. Rarity in A. crassifolia is a natural condition; however, we express concern for the small census population size as it might trigger further rarefaction

Performance analysis of a multijunction solar cell operating under natural conditions and various concentration rates

El desempeño de una celda fotovoltaica multiunión con 1,0 cm2 es evaluado para varias tasas de concentración. Parámetros que caracterizan la celda son extraídos de curvas características obtenidas experimentalmente con base en el modelo de un diodo. Especial atención es dedicada a resistencia serie de la celda. Resultados demuestran que el procedimiento es consistente, permitiendo obtener una visión general del comportamiento de las celdas multiunión, a pesar de grandes variaciones experimentales de temperatura y radiación. Se observa una alta resistencia serie (3,8 Ω) para baja concentración. Esta resistencia disminuye, alcanzando un valor estable para altas concentraciones (0,024 Ω). Se han medido eficiencias promedio de conversión del 35% cuando se convierte la temperatura de referencia. La resistencia serie obtenida para altas concentraciones limita el índice de concentración que corresponde a máxima eficiencia entre 243 y 278. Mayores índices de concentración y probablemente eficiencias superiores requieren mayor reducción de la resistencia serie.The performance of a CPV multijunction (MJ) cell of 1.0 cm2 was evaluated for various concentration ratios. Parameters which characterize the cell were extracted from experimental characteristic curves using the one diode model. Special attention was given to series resistance which effects can change significantly the cell performance. Results obtained show that the procedure adopted is considerably consistent, enabling to obtain a general picture of solar cell behavior in spite of large temperature and irradiance experimental variations. A large series resistance (3.8 Ω) is observed for low concentration values. This resistance decays rapidly, attaining a stable value for high concentrations (0.024 Ω). Average conversion efficiency of 35% have been measured when converted to temperatures of 47 ºC. Series resistance obtained for high concentrations limits concentration ratio corresponding to maximum efficiency to values between 243 and 278. Higher concentration ratios and probably higher efficiencies require further reduction of series resistance.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Cognitive behavioural “third wave” therapies in the treatment of justice-involved individuals: A systematic review

Psychological treatments have been increasingly used with justice-involved individuals; however, evidence regarding their effectiveness remains unclear. Thus, new approaches, such as Cognitive-Behavioural (CB) “third wave” therapies, have been implemented with justice-involved individuals. This systematic review describes and assesses the effectiveness of different CB “third wave” therapies, such as Dialectical Behavioural Therapy (DBT), Acceptance and Commitment Therapy (ACT), Compassion Focused Therapy (CFT), Mindfulness-based Approaches (MBA), Metacognitive Therapy (MCT), and Functional Analytic Psychotherapy (FAP) with justiceinvolved individuals. The research was conducted in four databases (i.e., B-on, PubMed, Science Direct, and PsycINFO) up to November 2023. Fifty studies were included in the review. DBT was the most assessed, followed by ACT. No studies using FAP and MCT were included. Preliminary evidence for the effectiveness of ACT, DBT, CFT, and MBA with justice-involved populations regarding aggression and violent behaviour reductions was found. However, the studies revealed some methodological shortcomings preventing us from reaching firmer conclusions. More research is needed to understand the impact of CB “third wave” therapies in forensic settings further.Fundação para a Ciência e Tecnologia - FCTinfo:eu-repo/semantics/publishedVersio