17 research outputs found

    Orthodontic-surgical treatment in monozygotic twins with unilateral cleft lip and palate and Van Der Woude syndrome

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    Objective: to describe the surgical-orthodontic treatment in monozygotic twins with unilateral cleft lip and palate on opposite sides, Van der Woude syndrome, III facial pattern with severe maxillary deficiency. Clinical report: J.L.P. and J.L.P patients, 21 years old, regularly registered and treated in the Orthodontics sector of HRAC/USP. The interceptive orthodontic treatment began with the use of Haas expander associated with facial mask. The alveolar bone graft to fill the alveolar bone defect was performed in ideal time, before the irruption of the permanent canine. Due to the large maxillomandibular discrepancy, one of the patients underwent a maxilla osteogenic distraction surgery, in order to reduce the sagittal step, performing a new expansion two years after distraction. The corrective orthodontics was performed for the orthognathic surgery by decompensation of the upper and lower dental arches. Orthognathic surgery was done at the end of craniofacial growth. The cases were finalized with the positioning of the canines as the missing lateral incisors on the cleft side and canines as the central incisors on the noncleft side. After the appliance removal, it was adapted as contention a Hawley plate and a 3x3. Conclusion: it is possible to perform similar surgical-orthodontic treatment in twins’ patients with unilateral cleft lip and palate and Van der Woude syndrome. A static and functional occlusion was achieved after treatment, even considering the position of the canine as central incisor on one side and as lateral incisor on the opposite side in both patients

    Are food supply chains taking advantage of the circular economy? A research agenda on tackling food waste based on Industry 4.0 technologies

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    This article proposes a means of exploring the use of circular economy (CE) business models to deal with losses and waste in food supply chains. First, the current state-of-the-art application of CE in the food waste area was identified through a systematic literature review. The main findings concerning the current debate around this topic were: (a) the Regenerate and Loop business models are the most studied models in analyzing methods of reuse and recycling of food waste through biological cycles; (b) focal companies and customers are the most often investigated tiers of supply chains; and (c) the investigation of CE and food waste has so far focussed on how to efficiently manage the waste already generated by the system, instead of how to avoid waste generation. Second, in terms of managerial contributions, based on the findings from the systematic literature review, this article proposes an expansion of the application of CE business models to deal with food losses and waste, considering the role of the retail tier, the use of Industry 4.0 technologies and the shift away from the waste reuse approach towards reducing waste generation using CE business models, such as Optimize and Share. Additionally, in terms of academic contributions, this article presents a comprehensive agenda for future research and extends the body of knowledge with regard to the synergy between CE and Industry 4.0 by integrating these two topics with the issue of food waste and loss, a sustainable development target.Montpellier Business SchoolProduction Engineering Faculty of Engineering UNESP–Sao Paulo State UniversityDepartment of Industrial Engineering CES4.0 Faculty of Engineering University of TalcaProduction Engineering Faculty of Engineering UNESP–Sao Paulo State Universit

    Self‐Organizing Maps for Evaluation of Biogeochemical Processes and Temporal Variations in Water Quality of Subtropical Reservoirs

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    Water quality in reservoirs is often compromised in many regions worldwide by nutrients and trace metals. This demands continuous monitoring; however, analyses of large data sets collected during regular monitoring remain a difficult task. Multivariate techniques offer a fast and robust approach for interpreting complex results. The objective of this study was to check the efficacy of self-organizing maps (SOMs) as a tool to investigate biogeochemical processes. This tool can also help to illustrate influences of land use patterns on the water quality of reservoirs. Here we use the Itupararanga Reservoir in Brazil as a subtropical example. Vertical profiles were sampled from seven sites in the reservoir in a total of seven campaigns over 24 months. Next to physicochemical parameters in the water column (dissolved oxygen, Eh, pH, and temperature), levels of nutrients (NO3 −, NH4 +, and PO4 3−), transition and trace metals (Al, Ba, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, and Zn), and chlorophyll-a (Chla) were measured. These variables were correlated with land use using SOM. With this technique samples were classified into 17 distinct groups that showed distinct influences of spatial heterogeneity and seasonality. The analyses helped to reveal a seasonal stratification period, where Fe, Mn, and P were released from sediments. Nutrients and some metal inputs (Al and Fe) were related to agricultural, urban, and grass/pasture areas around the reservoir. Our approach also helped to explain physical and biogeochemical seasonality in the reservoir.Deutscher Akademischer AustauschdienstInstitute of Science and Technology São Paulo State University (UNESP)Department Lake Research UFZ-Helmholtz Centre for Environmental ResearchDepartment of Geography and Geosciences GeoZentrum Nordbayern Friedrich-Alexander University Erlangen-Nürnberg (FAU)Institute of Biosciences-Department of Ecology University of São Paulo (USP)Institute of Science and Technology São Paulo State University (UNESP)Deutscher Akademischer Austauschdienst: 88887.122769/2016-00Deutscher Akademischer Austauschdienst: 88887.141964/2017-00Deutscher Akademischer Austauschdienst: 88887.165060/2018-00Deutscher Akademischer Austauschdienst: 99999.008107/2015-07Deutscher Akademischer Austauschdienst: DAAD-ID 5741499

    Effect of an Edible Pectin Coating and Blanching Pretreatments on the Air-Drying Kinetics of Pumpkin (Cucurbita moschata)

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    With the aim of making food drying processing data and their evaluation available, this work entails evaluating the air-drying kinetics of fresh pumpkin slices and those pre-treated by applying an edible pectin coating or blanching. The drying kinetics of the fresh, blanched, and pectin-coated pumpkin slices were evaluated at 60 and 70 °C with air velocities of 0.85 and 1.70 m∙s−1. The effects of the pre-treatments and drying parameters on moisture diffusivity were investigated. Under the drying conditions studied, a constant-rate period was found and the falling-rate period was described by the diffusion equation. In order to take shrinkage into account, shrinkage coefficients were incorporated in an approximate way, using the analytical solution of Fick’s equation. The highest constant drying rate values were obtained for the blanched samples, followed by the coated samples and finally the fresh samples. Constant drying rates demonstrated that this period did not significantly influence the estimate of the effective diffusion coefficients. It was shown that the water diffusivity of the coating was high, but only slightly increased the drying time, thus not affecting drying efficiency. Conversely, blanching promoted more water transfer and enhanced drying efficiency. It was concluded that coating and blanching at the temperatures and velocities studied were promising for use as pre-treatments in the drying of pumpkins

    Spatial distribution, bioavailability, and toxicity of metals in surface sediments of tropical reservoirs, Brazil

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    Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Processo FAPESP: 2014/22581-8Depending on the environmental conditions, surface sediments can retain all the contaminants present and provide a record of the anthropic activities affecting the aquatic environment. In order to analyze the impacts on reservoirs, surface sediments were collected in three characteristic regions (riverine, transitional, and limnetic zones) of seven reservoirs in São Paulo State, Brazil. Analyses were made of grain size, organic matter (OM), total phosphorus (TP), and total nitrogen (TN). Inductively coupled plasma-atomic emission spectroscopy (ICP-AES) was used to determine pseudo-total and bioavailable metals (Cu, Cd, Cr, Ni, Pb, Zn, Mn, Fe, and Al). A Horiba probe was used to measure dissolved oxygen (DO), pH, redox potential (ORP), and temperature (Temp) in the bottom water. The data were analyzed using multivariate statistics. Enrichment factors (EF), pollution load index values (PLI), and background values (BG) were also determined in order to evaluate the potential toxicity. Intra-reservoir and inter-reservoir spatial heterogeneity (p OpenSPiltSPi 0.05) were observed using two-way analysis of similarities. Principal component analysis indicated greater influence of metals in the Barra Bonita, Salto Grande, and Rio Grande reservoirs, corroborating the PLI, EF, and BG data. Bioavailable Cu was found in the Rio Grande reservoir, possibly associated with copper sulfate used to control algal blooms, while bioavailable Ni in the Barra Bonita reservoir was attributed to the presence of industrial wastes and natural geology. The bottom water conditions indicated that the metals remained in insoluble forms
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