Identification and analysis of reference-independent movement event-related desynchronization.

Characterization of the electroencephalography (EEG) signals related to motor activity, such as alpha- and beta-band motor event-related desynchronizations (ERDs), is essential for Brain Computer Interface (BCI) development. Determining the best electrode combination to detect the ERD is crucial for the success of the BCI. Considering that the EEG signals are bipolar, this involves the choice of the main and reference electrodes.

Taxonomic revision of the South American subgenus Augochloropsis (Glyptobasia) (Hymenoptera: Apidae: Halictinae).

Augochloropsis (Glyptobasia) Moure, a small Neotropical subgenus, is revised, with the description of a new species, Augochloropsis aenea sp. nov., from Puno, southern Peru.

Açai seed biochar improves soil quality and black pepper seedling development in the Amazon region.

Sustainable management of the Amazon rainforest is fundamental for supporting life on earth because of its crucial role in sequestering carbon. One of the species grown in the forest is açaí (Euterpe oleracea), which is an important food and income source for its inhabitant. The acai seed, resulting from the processing of the fruit, is a solid organic residue, which has been an agent of undesirable environmental impacts such as natural landscape modifications, clogging sewers and water courses, eutrophication of surface waters.

Antibacterial and Antibiofilm Activity of Croton urticifolius Lam. Essential Oil Via Membrane Disruption.

Antimicrobial resistance is a global health issue, in which microorganisms develop resistance to antimicrobial drugs, making infections more difficult to treat. This threatens the effectiveness of standard medical treatments and necessitates the urgent development of new strategies to combat resistant microbes. Studies have increasingly explored natural sources of new antimicrobial agents that harness the rich diversity of compounds found in plant species.

Energetic and Electronic Properties of UO and UF.

High-level electronic structure calculations were conducted to examine the bonding and spectroscopic properties of the UO and UF diatomic molecules. The low-lying Ω states were described by using multireference SO-CASPT2 calculations. The adiabatic electronic affinity (AEA), adiabatic ionization energy (IE), and bond dissociation energy (BDE) were calculated at the Feller-Peterson-Dixon (FPD) level.

Dental and periodontal dimensions stability after esthetic clinical crown lengthening surgery: a 12-month clinical study.

Objectives: To evaluate the stability of periodontal tissues 3 (T), 6 (T), and 12 (T) months after esthetic crown lengthening (ACL) and the possible correlations between changes in those structures.

Materials And Methods: Twenty individuals were evaluated through clinical assessment, photography, and tomography. Measurements included gingival margin (GM), clinical crown length (CCL), interdental papilla height (PH) and width (PW), gingival thickness (GT), bone thickness (BT), probing depth (PD), distance between alveolar crest and GM, distance between alveolar crest and cementoenamel junction.

Inhibitory insula-ACC projections modulate affective but not sensory aspects of neuropathic pain.

The insula and anterior cingulate cortex (ACC) are brain regions that undergo structural and functional reorganization in neuropathic pain states. Here, we aimed to study inhibitory parvalbumin positive (PV+) posterior insula (pIC) to posterior ACC (pACC) projections, and to evaluate the effects of direct optogenetic manipulation of such projections on mechanical nociception and spontaneous ongoing pain in mice with Spared Nerve Injury (SNI). CTB tract-tracing in male PVCrexAi9 mice revealed a small proportion of PV+ projections from the pIC to the pACC.

Antimicrobial Activity the Essential Oil from Carn. Leaves against Microorganisms of Clinical Interest.

Multiresistant pathogens pose a serious threat to human health. The genus is one class of human pathogenic yeasts responsible for infections affecting healthy and immunocompromised patients. In this context, plant essential oils emerged as a future natural alternative to control the diseases caused by these pathogens.

Energetic and Electronic Properties of NpH and PuH.

High-level correlated molecular orbital theory calculations have been performed to predict the thermodynamic and electronic properties of diatomic NpH and PuH. The excited states up to ∼10,000 cm were predicted for these molecules at the multireference SO-CASPT2 level. The inclusion of spin-orbit effects is fundamental to predict the low-lying state ordering.

Leaf hydroalcoholic extract and oleoresin from control infection in human trophoblast cells and placental explants from third-trimester pregnancy.

The conventional treatment of congenital toxoplasmosis is mainly based on the combination of sulfadiazine and pyrimethamine. However, therapy with these drugs is associated with severe side effects and resistance, requiring the study of new therapeutic strategies. There are currently many studies with natural products, including oleoresin, showing actions against some pathogens, as and .

Theoretical and Experimental Study of the Spectroscopy and Thermochemistry of UC.

A combination of high-level calculations and anion photoelectron detachment (PD) measurements is reported for the UC, UC, and UC molecules. To better compare the theoretical values with the experimental photoelectron spectrum (PES), a value of 1.493 eV for the adiabatic electron affinity (AEA) of UC was calculated at the Feller-Peterson-Dixon (FPD) level.

Electronic Properties of UN and UN from Photoelectron Spectroscopy and Correlated Molecular Orbital Theory.

The results of calculations of the properties of the anion UN including electron detachment are described, which further expand our knowledge of this diatomic molecule. High-level electronic structure calculations were conducted for the UN and UN diatomic molecules and compared to photoelectron spectroscopy measurements. The low-lying Ω states were obtained using multireference CASPT2 including spin-orbit effects up to ∼20,000 cm.

Periodic Trends within Actinyl(VI) Nitrates and Their Structures, Vibrational Spectra, and Electronic Properties.

A series of actinyl(VI) nitrate salts of the form MAnO(NO), where M = NH K, Rb, Cs, and MeN and AnO = U, Np, Pu, and AnO(NO)(HO)·HO, and the uranyl tetranitrates MUO(NO) have been synthesized from aqueous solution and their structures determined using single-crystal X-ray diffraction. Together, these complexes represent an isostructural series of actinide complexes among the salts crystallized with the same charge-compensating cation and have been studied using vibrational spectroscopy including Raman and Fourier-transform infrared. Periodic trends in both the structural properties of these complexes and their vibrational spectra are presented and discussed, in particular the invariant nature of the O≡An≡O asymmetric stretching frequencies observed across the actinyl series.

Synopsis of the wasp genus Clystopsenella Kieffer (Hymenoptera: Scolebythidae).

Scolebythidae are ectoparasitoid wasps which develop gregariously as idiobionts on wood-boring beetle larvae. Among them, the genus Clystopsenella is restricted to the Neotropical region and the eastern coast of Australia. The genus also includes a fossil species, Clystopsenella mirabilis Engel, 2015, from Miocene Dominican amber.

Taxonomic revision of Augochloropsis (Glyptochlora) Moure, a rare bee subgenus from the Amazon Basin (Hymenoptera: Halictinae).

We revise the bee subgenus Augochloropsis (Glyptochlora) and recognize four species in the group. Three new species are described, Augochloropsis peruviana n. sp.

Protactinium and Actinium Monohydrides: A Theoretical Study on Their Spectroscopic and Thermodynamic Properties.

Spectroscopic and thermodynamics properties including bond dissociation energies (BDEs), adiabatic electron affinities (AEAs), and ionization energies (IEs) have been predicted for AcH and PaH using the Feller-Peterson-Dixon composite approach. Comparisons with previous studies on ThH and UH were performed to identify possible trends in the actinide series. Multireference CASPT2 calculations were used to predict the spin-orbit effects and obtain potential energy curves for the low-lying Ω states around the equilibrium distance as well as the vertical detachment energies (VDEs) from AcH and PaH to excited states of the neutral species.

Experimental and Computational Description of the Interaction of H and H with U.

The results of ab initio correlated molecular orbital theory electronic structure calculations for low-lying electronic states are presented for UH and UH and compared to photoelectron spectroscopy measurements. The calculations were performed at the CCSD(T)/CBS and multireference CASPT2 including spin-orbit effects by the state interacting approach levels. The ground states of UH and UH are predicted to be Ι and Λ, respectively.

Observation of Selectively Populated Monohalide Excited States from the Reactions of Group 3 Metal (Sc, Y, and La) Monomers and Dimers with Halogen-Containing Molecules.

The chemiluminescent reactions of the group 3 metals Sc and Y with F, Cl, Br, ClF, ICl (Sc), IBr (Y), and SF and La with F, SF, Cl, and ClF have been studied at low pressures (6 × 10 to 4 × 10 Torr) using a beam-gas arrangement and extended to the 10 Torr multiple collision pressure range. Contrary to previous reports, the observed chemiluminescent spectra are primarily attributed to emission from the metal monohalides. Extensive pressure and temperature dependence studies and high-level correlated molecular orbital theory calculations of the bond dissociation energies support this conclusion and the attribution of the chemiluminescence.

Evolution of andrenine bees reveals a long and complex history of faunal interchanges through the Americas during the Mesozoic and Cenozoic.

Bees are presumed to have arisen in the early to mid-Cretaceous coincident with the fragmentation of the southern continents and concurrently with the early diversification of the flowering plants. Here, we apply DNA sequences from multiple genes to recover a dated phylogeny and historical biogeographic of andrenine bees, a large group of 3000 species mainly distributed in arid areas of North America, South America, and the Palearctic region. Our results corroborate the monophyly of Andreninae and points toward a South America origin for the group during the Late Cretaceous.

Community stability and seasonal biotic homogenisation emphasize the effect of the invasive tropical tanner grass on macrophytes from a highly dynamic neotropical tidal river.

Unlabelled: We described the spatial and temporal dynamics of aquatic macrophytes in a Neotropical coastal estuarine river, and identified the negative effects associated to the presence and dominance of the invasive tanner grass. We compared macrophyte beds along the Guaraguaçu River (South Brazil) over four years, using taxonomic and functional dimensions. Biodiversity descriptors were higher in the driest periods compared to the rainiest, although this difference seems to be decreasing over the studied years.

The effect of whole-body vibration on public transportation passenger performance while typing on smartphones.

This study verified typing performance on smartphones of public transportation passengers using subjective assessments of comfort and difficulty and objective assessments of the number of errors and typing speed. Three frequency values (5, 10, and 15 Hz), two magnitudes (0.6 and 1.