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Barros Mariana Silva,Silva Paula Fernanda Damasceno,Santana Márcia Luciana Carregosa,Bragança Rafaella Mariana Fontes,Faria-e-Silva André Luis 대한치과보존학회 2023 Restorative Dentistry & Endodontics Vol.48 No.1
Objectives This study aimed to evaluate the surrounding and underlying shades’ effect on the color adjustment potential (CAP) of a single-shade composite used in a thin layer. Materials and Methods Cylinder specimens (1.0 mm thick) were built with the Vittra APS Unique composite, surrounded (dual specimens) or not (simple specimens) by a control composite (shade A1, A2, or A3). Simple specimens were also built only with the control composites. Each specimen’s color was measured against white and black backgrounds or the simple control specimens with a spectrophotometer (CIELAB system). The whiteness index for dentistry (WID) and translucency parameters (TP00) were calculated for simple specimens. Differences (ΔE00) in color between the simple/dual specimens and the controls were calculated. The CAP was calculated based on the ratios between data from simple and dual specimens. Results The Vittra APS Unique composite showed higher WID and TP00 values than the controls. The highest values of ΔE00 were observed among simple specimens. The color measurements of Vittra APS Unique (simple or dual) against the control specimens presented the lowest color differences. Only surrounding the single-shade composite with a shaded composite barely impacted the ΔE00. The highest CAP values were obtained using a shaded composite under simple or dual specimens. Conclusions The CAP of Vittra APS Unique was strongly affected by the underlying shade, while surrounding this composite with a shaded one barely affected its color adjustment.
Continuous-Discontinuous Model for Ductile Fracture
Mariana R. R. Seabra,Jose M. A. Cesar de Sa 한국소성가공학회 2010 기타자료 Vol.2010 No.6
In this contribution, a continuum-dicontinuum model for ductile failure is presented. The degradation of material properties trough deformation is described by Continuum Damage Mechanics in a non-local integral formulation to avoid mesh dependence. In the final stage of failure, the damaged zone is replaced by a cohesive macro crack and subsequent traction-free macro crack for a more realistic representation of the phenomenon. The inclusion of the discontinuity surfaces is performed by the XFEM and Level Set Method and avoids the spurious damage growth typical of this class of models.
Empowering Service Value of Custom and Cultural Events to Tourism Destination Revisit
Mariana SIMANJUNTAK,Naili FARIDA 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.6
This study discussed tourist behavior toward the tourism destination in Lumban Bulbul Toba Beach choosing to visit again. Tourist behavior is the process a tourist undertakes, both observable and unobservable, when planning and participating in tourism. This research employed an explanatory research method and a quantitative approach using Structural Equation Modeling (SEM) analysis. The population of this study are the tourists who visit Lumban Bulbul Beach and observers of Toba tourist destinations. The researchers adopted the Stimulus- Organism-Response (SOR) theoretical basis with the assumption that the cause of behavior changes depends on the quality of the stimulus namely the existence of traditional events implemented in Toba and surrounding areas affecting revisit intention to the tourist areas around Lake Toba. The results of hypothesis testing showed that Empowering Custom and Culture Events (ECCE) are influenced by Perceived Value. ECCE affects Distance of Visit, Environmental Awareness, and Customer Intention to revisit, while Perceived Value has no proven effect on Customer Intention to Revisit. The Sobel test results showed that ECCE is proven as mediation between Perceived Value and Customer Intention to Revisit. The results of this study on tourist behavior of revisit intention to Lumban Bulbul destination can be an input for Lake Toba tourist destination management.
Mariana T. De Souza,Gabriela Vera-Lozada,Moneeb Othman,Teresinha J. Marques-Salles,Luciana W. Pinto,Moisés M. da Rocha,Soraia Rouxinol,Thomas Liehr,Raul C. Ribeiro,Rocio Hassan,Maria Luiza Macedo Silv 대한진단검사의학회 2018 Annals of Laboratory Medicine Vol.38 No.1
Dear Editor, Burkitt lymphoma/leukemia (BL/L) was the first neoplasia associated with rearrangement in MYC that is the molecular hallmark of this disease. Particularly, immunoglobulin genes are associated with MYC in BL/L, where the juxtaposition with heavy chain locus (14q32) or light chain loci (2p12 and 22q11) leads to MYC overexpression, which is believed to play a central role in BL/L pathogenesis
Intradermal Tests for Diagnosis of Drug Allergy are not Affected by a Topical Anesthetic Patch
Mariana Couto,Diana Silva,Ana Ferreira,Josefina R. Cernadas 대한천식알레르기학회 2014 Allergy, Asthma & Immunology Research Vol.6 No.5
The use of topical anesthesia to perform intradermal tests (IDTs) for drug allergy diagnosis was never investigated. We aimed to determine the effectsof a topical anesthetic patch containing prilocaine-lidocaine on wheal size of IDT with drugs. Patients who had positive IDT as part of their investigationprocess of suspected drug hypersensitivity were selected. IDT were performed according to guidelines. Anesthetic patch (AP) wasplaced and the same prior positive IDT, as well as positive histamine skin prick test (SPT) and negative (saline IDT) controls, were performed in theanesthetized area. Patients with negative IDT were also included to check for false positives with AP. Increase in wheals after 20 minutes both withand without AP was recorded and compared. 45 IDT were performed (36 patients), of which 37 have been previously positive (14 antibiotics, 10 generalanesthetics, 6 non-steroidal anti-inflammatory drugs, 3 iodinated contrasts, 3 anti-Hi-histamines and 1 ranitidine). Mean histamine SPT sizewithout the AP was 4.7 mm [95%CI (4.4-5.1)], and 4.6 mm [95%CI (4.2-5.0)] with anesthesia. Mean wheal increase in IDT for drugs without the anesthesiawas 4.5 mm [95%CI (3.3-5.7)] and with anesthesia was 4.3 mm [95%CI (2.8-5.8)]. No statistical significant differences were observed betweenskin tests with or without AP for histamine SPT (P=0.089), IDT with saline (P=0.750), and IDT with drugs (P=0.995). None of the patientswith negative IDT showed positivity with the AP, or vice-versa. The use of an AP containing prilocaine-lidocaine does not interfere with IDT to diagnosedrug allergy, and no false positive tests were found.
Self-identity in Empathy Development
Mariana Hwang 한국기독교교육정보학회 2006 Journal of Christian education information tech Vol.0 No.10
This paper argues that empathic ability is one of the essential aspects of Christian maturity, and it is directly related to the person's understanding of self. Although several studies have suggested different methods and approaches to nurture empathic behaviors, empathy as part of the character of a person must stem from the inner self. Studies revealed that a person's either positive or negative behavior is motivated from the person's positive or negative self-concept. This is to say that possessing a clear and positive understanding of self is critical in empathy development. Two reasons explain why an individual's self-concept and the person's empathy development are closely related: First, positive behaviors are motivated from positive sense of self, whereas, negative or violent behaviors come from the person's negative sense of self. Second, a person cannot truly understand others unless he or she first clearly understands self. Factors that influence the construction of the self-concept are parents, object relations, cognitive development, social relations, and God-concept.
Effects of resistance training on the inflammatory response
Mariana C Calle,Maria Luz Fernandez 한국영양학회 2010 Nutrition Research and Practice Vol.4 No.4
Resistance training (RT) is associated with reduced risk of low grade inflammation related diseases, such as cardiovascular disease and type 2 diabetes. The majority of the data studying cytokines and exercise comes from endurance exercise. In contrast, evidence establishing a relationship between RT and inflammation is more limited. This review focuses on the cytokine responses both following an acute bout, and after chronic RT. In addition, the effect of RT on low grade systemic inflammation such as individuals at risk for type 2 diabetes is reviewed. Cytokines are secreted proteins that influence the survival, proliferation, and differentiation of immune cells and other organ systems. Cytokines function as intracellular signals and almost all cells in the body either secrete them or have cytokine receptors. Thus, understanding cytokine role in a specific physiological situation such as a bout of RT can be exceedingly complex. The overall effect of long term RT appears to ameliorate inflammation, but the specific effects on the inflammatory cytokine, tumor necrosis factor alpha are not clear, requiring further research. Furthermore, it is critical to differentiate between chronically and acute Interleukin-6 levels and its sources. The intensity of the RT and the characteristics of the training protocol may exert singular cytokine responses and as a result different adaptations to exercise. More research is needed in the area of RT in healthy populations, specifically sorting out gender and age RT acute responses. More importantly, studies are needed in obese individuals who are at high risk of developing low grade systemic inflammatory related diseases. Assuring adherence to the RT program is essential to get the benefits after overcoming the first acute RT responses. Hence RT could be an effective way to prevent, and delay low grade systemic inflammatory related diseases.