cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6858011
title: Parotid gland adenocarcinoma in a cow: case report

description: ABSTRACT A 9-year-old Girolando dairy cow, weighing 400kg, with a history of increased volume in the right parotid region, which extended to the submandibular region, was assisted. Fine needle aspiration cytology was performed, and the cytological findings were consistent with malignant neoplasm of epithelial origin (carcinoma). Because of the unfavorable prognosis, the animal was euthanized and submitted to an anatomopathological examination. Samples of the increased parotid and affected lymph nodes were collected for histopathological evaluation. The microscopic changes were accentuated features of anaplasia, moderate cell proliferation, atypical mitotic figures, and necrosis. Stroma ranged from delicate to scirrhous, and the tumor boundaries were not distinct. These findings substantiated the preliminary histomorphological diagnosis of undifferentiated carcinoma with metastasis in lymph nodes. Immunohistochemical tests were performed with anti-CK Pan (clone AE1AE3), anti-CK HMW (clone 34βE12), anti-CK19 (clone RCK108), anti-vimentin (clone V9), anti-S100 (polyclonal), and anti-androgen (polyclonal) antibodies. The immunophenotype favored the diagnosis of salivary gland adenocarcinoma. Despite the rareness in cattle, salivary gland adenocarcinoma should be considered in the differential diagnosis of diseases that occur with increased volume in the head, lymphadenopathy, drooling, dysphagia, and progressive weight loss.
DOI: 10.6084/m9.figshare.6858011.v1
title: Parotid gland adenocarcinoma in a cow: case report

description: ABSTRACT A 9-year-old Girolando dairy cow, weighing 400kg, with a history of increased volume in the right parotid region, which extended to the submandibular region, was assisted. Fine needle aspiration cytology was performed, and the cytological findings were consistent with malignant neoplasm of epithelial origin (carcinoma). Because of the unfavorable prognosis, the animal was euthanized and submitted to an anatomopathological examination. Samples of the increased parotid and affected lymph nodes were collected for histopathological evaluation. The microscopic changes were accentuated features of anaplasia, moderate cell proliferation, atypical mitotic figures, and necrosis. Stroma ranged from delicate to scirrhous, and the tumor boundaries were not distinct. These findings substantiated the preliminary histomorphological diagnosis of undifferentiated carcinoma with metastasis in lymph nodes. Immunohistochemical tests were performed with anti-CK Pan (clone AE1AE3), anti-CK HMW (clone 34βE12), anti-CK19 (clone RCK108), anti-vimentin (clone V9), anti-S100 (polyclonal), and anti-androgen (polyclonal) antibodies. The immunophenotype favored the diagnosis of salivary gland adenocarcinoma. Despite the rareness in cattle, salivary gland adenocarcinoma should be considered in the differential diagnosis of diseases that occur with increased volume in the head, lymphadenopathy, drooling, dysphagia, and progressive weight loss.
DOI: 10.6084/m9.figshare.6858014.v1
title: Caracterización de compositos biocerámicos en esponjas de titanio mediante interpenetración por corriente pulsada asistida

description: ABSTRACT Recently, it has been directing some special attention to the development of new manufacturing processes, with engineering applications in human tissues [1]. 3D printing applied to tissue engineering requires pulse computational techniques such as stereolithographic modeling, and special manufacturing processes, to name a few; Laser Sintering or Extrusion Deposition [2]. Despite the advances, applications have been limited due to the characteristics and properties of the materials used, so they must meet the biomaterial conditions. On the other hand, biomimicry of materials should be biologically and mechanically imitated when possible on the aim and surrounding tissue. The architecture of these materials must allow adhesion, nucleation, growth, proliferation and transport of living cells for tissue regeneration [3]. Hence, it is exhibited the importance of getting porous scaffolds [4]. In the present work, titanium was obtained with different levels of porosity (metal sponges), in order to locate an average convenient pore size. The synthesis of metal sponges was performed by pulsed current assisted sintering using a spacer. The content of the spacer modifies the temperature gradient during the synthesis; however it was noted that the morphological characteristics of the material and crystal were unchanged. During sintering, the operating conditions were constant and reproducible. The properties and composition of the materials obtained were analyzed and compared to commercial materials. The results suggest that this material could be successfully used in clinical applications.
DOI: 10.6084/m9.figshare.6858005
title: Comparative study of Uranium diffusion in Zry-4 and pure α-Zr

description: ABSTRACT Throughout the α-spectrometry U diffusion in pure Zry-4 was studied and compared with pure α-Zr in the temperature range 843-1093 K in order to analyze the diffusion process in both matrices. D values are systematically higher in Zry-4 and its temperature dependence obeys the Arrhenius law being: D0 = (3,2 ± 1,1) m2/s and Q = (316 ± 9) kJ mol-1, whereas in α-Zr U diffusion present an apart to this law, consistent in a downward curvature in the ln(D) vs 1/T plot. Below 873 K U solubility in Zry4 is lower than in pure Zr.
DOI: 10.6084/m9.figshare.6858008
title: Evaluation and classification of post-extubation dysphagia in critically ill patients.

description: ABSTRACT Objective: to identify factors associated with dysphagia in patients undergoing prolonged orotracheal intubation (pOTI) and the post-extubation consequences. Methods: 150 patients undergoing pOTI participated in the study, evaluated according to the deglutition functional level (American Speech Language - Hearing Association National Outcome Measurement System - ASHA NOMS), severity determination (The Simplified Acute Physiology Score - SOFA) and submitted to collection of variables age, mortality, days of orotracheal intubation, number of sessions to introduce oral diet, and days to hospital discharge. We grouped patients according to ASHA classification: 1 (levels 1 and 2), 2 (levels 3, 4 and 5) and 3 (levels 6 and 7). Results: the variables associated with impaired deglutition functionality were age (p&lt;0.001), mortality (p&lt;0.003), OTI days (p=0.001), number of sessions to introduce oral diet (p&lt;0.001) and days to hospital discharge (p=0.018). Multiple comparisons indicated significant difference between ASHA1 and ASHA2 groups in relation to ASHA3 group. ASHA1 and ASHA2 groups had a lower SOFA score when compared with the ASHA3 group (p=0.004). Only 20% of ASHA1 patients and 32% of ASHA2 patients presented safe deglutition levels before discharge. Conclusion: factors associated with dysphagia in patients submitted to pOTI were age over 55 years and orotracheal intubation time (greater in the cases with worse deglutition functionality). The post-extubation consequences were increased mortality and length of hospital stay in the presence of dysphagia.
DOI: 10.6084/m9.figshare.6858002
title: Changes in phenotypic variability of two tropical woody species due to short and long-term exposure to different irradiances

description: ABSTRACT Studies addressing the physiological and anatomical responses of plants under different light intensities normally are performed in short term. Thus, the present study includes a long term analysis. This study aims to verify whether the phenotypic variability off attributes in two woody tropical specieis, Paquira aquatica and Sterculia foetida, are compatible both under short term exposure to different light availability levels (full-light and half-light local irradiance) and long-term exposure in the same conditions. The study was developed in two phases: phase I (short term) and phase II (long term). The variables measured were referent to CO2 assimilation responses to light intensity, chlorophyll a fluorescence, chlorophyll content, morpho-anatomical attributes and phenotypic variability. In phase I, P. aquatica had differences between treatments in Amax (maximum net photosynthesis) and LCP (light compensation point), without differences in these attributes in phase II. S. foetida plants had differences only in phase I in Amax. In anatomical attributes, P. aquatica had a higher palisade and spongy parenchyma and mesophyll thickness compared to S. foetida plants, without differences between light treatments. In S. foetida, the aforementioned cell layers were thicker in full-light treatment. Both species showed a higher phenotypic variability in the same physiological attributes in phase I and similar attributes for mesophyll thickness of the abaxial epidermis in phase II. The species showed different anatomical and physiological strategies, however with plastic responses in similar attributes, only observable after a longer period of exposure. The results indicated the importance of lengthy exposure to light, mainly in tropical species, wich are naturally exposed to elevated irradiance levels for an extended period of time in the field.
DOI: 10.6084/m9.figshare.6858005.v1
title: Comparative study of Uranium diffusion in Zry-4 and pure α-Zr

description: ABSTRACT Throughout the α-spectrometry U diffusion in pure Zry-4 was studied and compared with pure α-Zr in the temperature range 843-1093 K in order to analyze the diffusion process in both matrices. D values are systematically higher in Zry-4 and its temperature dependence obeys the Arrhenius law being: D0 = (3,2 ± 1,1) m2/s and Q = (316 ± 9) kJ mol-1, whereas in α-Zr U diffusion present an apart to this law, consistent in a downward curvature in the ln(D) vs 1/T plot. Below 873 K U solubility in Zry4 is lower than in pure Zr.
DOI: 10.6084/m9.figshare.6858008.v1
title: Evaluation and classification of post-extubation dysphagia in critically ill patients.

description: ABSTRACT Objective: to identify factors associated with dysphagia in patients undergoing prolonged orotracheal intubation (pOTI) and the post-extubation consequences. Methods: 150 patients undergoing pOTI participated in the study, evaluated according to the deglutition functional level (American Speech Language - Hearing Association National Outcome Measurement System - ASHA NOMS), severity determination (The Simplified Acute Physiology Score - SOFA) and submitted to collection of variables age, mortality, days of orotracheal intubation, number of sessions to introduce oral diet, and days to hospital discharge. We grouped patients according to ASHA classification: 1 (levels 1 and 2), 2 (levels 3, 4 and 5) and 3 (levels 6 and 7). Results: the variables associated with impaired deglutition functionality were age (p&lt;0.001), mortality (p&lt;0.003), OTI days (p=0.001), number of sessions to introduce oral diet (p&lt;0.001) and days to hospital discharge (p=0.018). Multiple comparisons indicated significant difference between ASHA1 and ASHA2 groups in relation to ASHA3 group. ASHA1 and ASHA2 groups had a lower SOFA score when compared with the ASHA3 group (p=0.004). Only 20% of ASHA1 patients and 32% of ASHA2 patients presented safe deglutition levels before discharge. Conclusion: factors associated with dysphagia in patients submitted to pOTI were age over 55 years and orotracheal intubation time (greater in the cases with worse deglutition functionality). The post-extubation consequences were increased mortality and length of hospital stay in the presence of dysphagia.
DOI: 10.6084/m9.figshare.6857999
title: Effect of blisters and rims on radial hydride precipitation in fuel elements under dry storage conditions

description: ABSTRACT Hydrogen enters in Zry clads during fuel element life in service; when hydrogen exceeds the terminal solid solubility, circumferential hydrides are precipitated. In the presence of thermal gradients, produced for instance by oxide spallation, localized concentration of hydrides - known as blisters - can be formed. Due to the fact that zirconium hydrides have a lower density that zirconium alloys, stresses are produced around blisters. These stresses may overcome the necessary threshold to precipitate radial hydrides. Moreover, cracks inside blisters may act as initiators of delayed hydride cracking (DHC). In the dry storage facilities developed for Atucha 1, Zry - 4 clads of spent fuel elements (SFE) must withstand environmental conditions which include maximum temperature of 200°C and internal SFE pressure of ~ 75 bar (value at end of cycle). During dry storage, if blisters are present, stresses around them are superposed to circumferential stresses generated by the internal pressure due to fission gasses helping precipitation and/or growth of radial hydrides and DHC process. In order to assess this possibility, in the present work sections of Zry-4 cladding were hydrided. Blisters have been grown by thermal gradient under different conditions of temperature and shapes of thermal contact in order to obtain different blister dimensions and fraction of radial hydrides. After blister formation, some specimens were subjected to Hydride Reorientation Test (HRT) by applying an internal pressure of 75 bar at 200°C. Finally, tubes were sectioned and metallographically analyzed looking for radial hydrides. In some samples radial hydrides were observed, which effectively grew by the internal pressure of Zry-cladding during HRT.
DOI: 10.6084/m9.figshare.6857999.v1
title: Effect of blisters and rims on radial hydride precipitation in fuel elements under dry storage conditions

description: ABSTRACT Hydrogen enters in Zry clads during fuel element life in service; when hydrogen exceeds the terminal solid solubility, circumferential hydrides are precipitated. In the presence of thermal gradients, produced for instance by oxide spallation, localized concentration of hydrides - known as blisters - can be formed. Due to the fact that zirconium hydrides have a lower density that zirconium alloys, stresses are produced around blisters. These stresses may overcome the necessary threshold to precipitate radial hydrides. Moreover, cracks inside blisters may act as initiators of delayed hydride cracking (DHC). In the dry storage facilities developed for Atucha 1, Zry - 4 clads of spent fuel elements (SFE) must withstand environmental conditions which include maximum temperature of 200°C and internal SFE pressure of ~ 75 bar (value at end of cycle). During dry storage, if blisters are present, stresses around them are superposed to circumferential stresses generated by the internal pressure due to fission gasses helping precipitation and/or growth of radial hydrides and DHC process. In order to assess this possibility, in the present work sections of Zry-4 cladding were hydrided. Blisters have been grown by thermal gradient under different conditions of temperature and shapes of thermal contact in order to obtain different blister dimensions and fraction of radial hydrides. After blister formation, some specimens were subjected to Hydride Reorientation Test (HRT) by applying an internal pressure of 75 bar at 200°C. Finally, tubes were sectioned and metallographically analyzed looking for radial hydrides. In some samples radial hydrides were observed, which effectively grew by the internal pressure of Zry-cladding during HRT.
DOI: 10.6084/m9.figshare.6858002.v1
title: Changes in phenotypic variability of two tropical woody species due to short and long-term exposure to different irradiances

description: ABSTRACT Studies addressing the physiological and anatomical responses of plants under different light intensities normally are performed in short term. Thus, the present study includes a long term analysis. This study aims to verify whether the phenotypic variability off attributes in two woody tropical specieis, Paquira aquatica and Sterculia foetida, are compatible both under short term exposure to different light availability levels (full-light and half-light local irradiance) and long-term exposure in the same conditions. The study was developed in two phases: phase I (short term) and phase II (long term). The variables measured were referent to CO2 assimilation responses to light intensity, chlorophyll a fluorescence, chlorophyll content, morpho-anatomical attributes and phenotypic variability. In phase I, P. aquatica had differences between treatments in Amax (maximum net photosynthesis) and LCP (light compensation point), without differences in these attributes in phase II. S. foetida plants had differences only in phase I in Amax. In anatomical attributes, P. aquatica had a higher palisade and spongy parenchyma and mesophyll thickness compared to S. foetida plants, without differences between light treatments. In S. foetida, the aforementioned cell layers were thicker in full-light treatment. Both species showed a higher phenotypic variability in the same physiological attributes in phase I and similar attributes for mesophyll thickness of the abaxial epidermis in phase II. The species showed different anatomical and physiological strategies, however with plastic responses in similar attributes, only observable after a longer period of exposure. The results indicated the importance of lengthy exposure to light, mainly in tropical species, wich are naturally exposed to elevated irradiance levels for an extended period of time in the field.
DOI: 10.6084/m9.figshare.6857993
title: Real textile effluent degradation assisted by Fe/PVA and magnetic waste

description: ABSTRACT Organic compounds present on industrial wastes are mostly resistant to conventional biological and chemical treatments. Textile industry has presented several environmental problems mainly related to the use and management of water resources. It has a high consumption of potable and underground water in its processes. These wastewaters are one of the most polluting of the industrial area. The Advanced Oxidation Process AOPs allow to decompose organic matter in a non-selectively way by the attack of •OH radicals. This work presents the characterization and application of several catalysts for real textile effluent treatment (from an industry dedicated to dyeing and finishing clothes; in Buenos Aires province).Three different iron catalysts are used: 1º) Synthesized in a laboratory, 2º) Waste from metallurgic industry and 3º) commercial steel wool. These are characterized using SEM/EDX. The effluent is characterized before and after treatment, where the degradation is following by measure of % COD, pH and Fe2+ content in solution by condition different of treatment. The effect of catalysts on the applied treatment is studied, which consists of an oxidation of organic matter by action of Fe species and H2O2 in solution, assuming a Fenton process a pH neutral. The results show that the three catalysts are efficient for use in the process of degradation of the real textile effluent. In all cases, the COD final values are suitable for discharge into a sewer system.
DOI: 10.6084/m9.figshare.6857990
title: Fabrication of Bioglass®/poly(ɛ-caprolactone) composite coatings obtained by co-electrophoretic deposition on stainless steel

description: ABSTRACT In this work two kinds of "soft coatings" were obtained by co-electrophoretic deposition technique (co-EPD). In all cases a bioglass was used as inorganic phase, and a commercial poly(ɛ-caprolactone), (PCLC), and an anionic synthesized PCL modified with maleic anhydride (PCLS) were used as organic phase. To ensure an adequate coating over the metallic substrate, deposition process variables (such as electric voltage and time) were optimized. Metal coated samples were analyzed by complementary characterization techniques (FTIR, DSC) to confirm the presence of both phases on the composite coatings. From SEM analysis, larger agglomerates were observed for the coatings obtained using commercial PCLC compared to those prepared from anionic modified PCLS, with a high degree of coating of the metallic substrate and absence of microcracks. Finally, by immersion tests in simulated body-fluid (SBF), the bioactivity of the coatings was evaluated. X-ray diffraction tests demonstrated the formation of a hydroxyapatite (HA) precipitate on the surface coatings, and by SEM-EDS microanalysis it was determined that HA present in PCLS coatings showed a Ca/P value ~ 1.78, which is close to stoichiometric values observed in bone tissues.
DOI: 10.6084/m9.figshare.6857990.v1
title: Fabrication of Bioglass®/poly(ɛ-caprolactone) composite coatings obtained by co-electrophoretic deposition on stainless steel

description: ABSTRACT In this work two kinds of "soft coatings" were obtained by co-electrophoretic deposition technique (co-EPD). In all cases a bioglass was used as inorganic phase, and a commercial poly(ɛ-caprolactone), (PCLC), and an anionic synthesized PCL modified with maleic anhydride (PCLS) were used as organic phase. To ensure an adequate coating over the metallic substrate, deposition process variables (such as electric voltage and time) were optimized. Metal coated samples were analyzed by complementary characterization techniques (FTIR, DSC) to confirm the presence of both phases on the composite coatings. From SEM analysis, larger agglomerates were observed for the coatings obtained using commercial PCLC compared to those prepared from anionic modified PCLS, with a high degree of coating of the metallic substrate and absence of microcracks. Finally, by immersion tests in simulated body-fluid (SBF), the bioactivity of the coatings was evaluated. X-ray diffraction tests demonstrated the formation of a hydroxyapatite (HA) precipitate on the surface coatings, and by SEM-EDS microanalysis it was determined that HA present in PCLS coatings showed a Ca/P value ~ 1.78, which is close to stoichiometric values observed in bone tissues.
DOI: 10.6084/m9.figshare.6857993.v1
title: Real textile effluent degradation assisted by Fe/PVA and magnetic waste

description: ABSTRACT Organic compounds present on industrial wastes are mostly resistant to conventional biological and chemical treatments. Textile industry has presented several environmental problems mainly related to the use and management of water resources. It has a high consumption of potable and underground water in its processes. These wastewaters are one of the most polluting of the industrial area. The Advanced Oxidation Process AOPs allow to decompose organic matter in a non-selectively way by the attack of •OH radicals. This work presents the characterization and application of several catalysts for real textile effluent treatment (from an industry dedicated to dyeing and finishing clothes; in Buenos Aires province).Three different iron catalysts are used: 1º) Synthesized in a laboratory, 2º) Waste from metallurgic industry and 3º) commercial steel wool. These are characterized using SEM/EDX. The effluent is characterized before and after treatment, where the degradation is following by measure of % COD, pH and Fe2+ content in solution by condition different of treatment. The effect of catalysts on the applied treatment is studied, which consists of an oxidation of organic matter by action of Fe species and H2O2 in solution, assuming a Fenton process a pH neutral. The results show that the three catalysts are efficient for use in the process of degradation of the real textile effluent. In all cases, the COD final values are suitable for discharge into a sewer system.