Organic Sulfur Markers as Proxies of Depositional Paleoeenvironments Related to Recôncavo and Amazon Basins, Brazil.

This study employed organic sulfur markers (S-markers) associated with geochemistry parameters to evaluate the paleoenvironment of different depositional settings in 24 samples collected in vertical sections of outcrops of the Candeias and Barreirinha Formations in Recôncavo and Amazon basins, respectively. A total of twenty-one S-markers from benzothiophene (BT), dibenzothiophene (DBT), and benzonaphtothiophenes (BNT) classes were optimized and quantified by gas chromatography-triple quadrupole mass spectrometry (GC-MS/MS). S-markers efficiently evaluated and differentiated the depositional paleoenvironment in the source rocks based on the individual compound, in cross-validation with saturated biomarkers, and associated with parameters such as total organic carbon (TOC) and Rock-Eval pyrolysis.

A prospective, comparative study of the analgesic effect between the WALANT technique and local anesthesia associated with sedation for hand surgery.

Purpose: The primary objective of this study was to compare the WALANT (wide awake, local anesthesia, no tourniquet) technique with local anesthesia associated with sedation in relation to pain intensity for minor hand surgical procedures. The secondary objective was to evaluate the need for analgesic complementation.

Methods: A prospective, randomized, comparative, and clinical study was carried out.

Thermal Transport and Rheological Properties of Hybrid Nanofluids Based on Vegetable Lubricants.

Nanofluids based on vegetal oil with different wt.% of carbon nanotubes (CNT), hexagonal boron nitride (h-BN), and its hybrid (h-BN@CNT) were produced to investigate the effects of these nano-additives on the thermal conductivity and rheological properties of nanofluids. Stable suspensions of these oil/nanostructures were produced without the use of stabilizing agents.

Multifunctional Hybrid MoS-PEGylated/Au Nanostructures with Potential Theranostic Applications in Biomedicine.

In this work, flower-like molybdenum disulfide (MoS) microspheres were produced with polyethylene glycol (PEG) to form MoS-PEG. Likewise, gold nanoparticles (AuNPs) were added to form MoS-PEG/Au to investigate its potential application as a theranostic nanomaterial. These nanomaterials were fully characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), photoelectron X-ray spectroscopy (XPS), Fourier-transformed infrared spectroscopy (FTIR), cyclic voltammetry and impedance spectroscopy.

Potential Production of Theranostic Boron Nitride Nanotubes (Cu-BNNTs) Radiolabeled by Neutron Capture.

In this work, the radioisotope Cu was obtained from copper (II) chloride dihydrate in a nuclear research reactor by neutron capture, (Cu(n,γ)Cu), and incorporated into boron nitride nanotubes (BNNTs) using a solvothermal process. The produced Cu-BNNTs were analyzed by TEM, MEV, FTIR, XDR, XPS and gamma spectrometry, with which it was possible to observe the formation ofCu nanoparticles, with sizes of up to 16 nm, distributed through nanotubes. The synthesized of Cu nanostructures showed a pure photoemission peak of 511 keV, which is characteristic of gamma radiation.

Micro Scalable Graphene Oxide Productions Using Controlled Parameters in Bench Reactor.

The detailed study of graphene oxide (GO) synthesis by changing the graphite/oxidizing reagents mass ratios (mG/mROxi), provided GO nanosheets production with good yield, structural quality, and process savings. Three initial samples containing different amounts of graphite (3.0 g, 4.

Thermal Conductivity Performance of 2D hBN/MoS/Hybrid Nanostructures Used on Natural and Synthetic Esters.

In this paper, the thermal conductivity behavior of synthetic and natural esters reinforced with 2D nanostructures-single hexagonal boron nitride (h-BN), single molybdenum disulfide (MoS), and hybrid h-BN/MOS-were studied and compared to each other. As a basis for the synthesis of nanofluids, three biodegradable insulating lubricants were used: FR3 and VG-100 were used as natural esters and MIDEL 7131 as a synthetic ester. Two-dimensional nanosheets of h-BN, MoS and their hybrid nanofillers (50/50 ratio percent) were incorporated into matrix lubricants without surfactants or additives.

DISTAL HUMERAL FRACTURE: AN EPIDEMIOLOGICAL ANALYSIS OF ORTHOPEDIC PATIENTS FOR CHILDREN.

Objective: To analyze the epidemiological profiles of children with orthopedic distal humerus fractures.

Methods: An analytical descriptive study was conducted with a retrospective approach using medical records of 665 orthopedic children who attended the Jesser Amarante Faria Children's Hospital, a reference hospital in the city of Joinville, Santa Catarina, between June 2012 and December 2016.

Results: The results showed a predominance of male patients (64.

Hybrid MoS/h-BN Nanofillers As Synergic Heat Dissipation and Reinforcement Additives in Epoxy Nanocomposites.

Two-dimensional (2D) nanomaterials as molybdenum disulfide (MoS), hexagonal boron nitride (h-BN), and their hybrid (MoS/h-BN) were employed as fillers to improve the physical properties of epoxy composites. Nanocomposites were produced in different concentrations and studied in their microstructure, mechanical and thermal properties. The hybrid 2D mixture imparted efficient reinforcement to the epoxy leading to increases of up to 95% in tensile strength, 60% in ultimate strain, and 58% in Young's modulus.