The Experts below are selected from a list of 102 Experts worldwide ranked by ideXlab platform
Rena R Wing - One of the best experts on this subject based on the ideXlab platform.
-
Internal disinhibition predicts weight regain following weight loss and weight loss maintenance
Obesity, 2007Co-Authors: Heather M Niemeier, Suzanne Phelan, Joseph L Fava, Rena R WingAbstract:Objective: The disinhibition scale of the Eating Inventory predicts weight loss outcome; however, it may include multiple Factors. The purpose of this study was to examine the Factor structure of the disinhibition scale and determine how its Factors independently relate to long-term weight loss outcomes. Research Methods and Procedures: Exploratory Factor analysis of the disinhibition scale was conducted on 286 participants in a behavioral weight loss trial (TRIM), and confirmatory Factor analysis was conducted on 3345 members of the National Weight Control Registry (NWCR), a registry of successful weight loss maintainers. Multivariate regressions were used to examine the relationships between the disinhibition scale Factors and weight over time in both samples. Results: Using baseline data from TRIM, two Factors were extracted from the disinhibition scale: 1) an “Internal” Factor that described eating in response to Internal cues, such as feelings and thoughts; and 2) an “external” Factor that described eating in response to external cues, such as social events. This Factor structure was confirmed using confirmatory Factor analysis in the NWCR. In TRIM, Internal disinhibition significantly predicted weight loss at 6 months (p = 0.03) and marginally significantly predicted weight loss at 18 months (p = 0.06), with higher levels of Internal disinhibition at baseline predicting less weight loss; external disinhibition did not predict weight loss at any time-point. In NWCR, Internal disinhibition significantly predicted one-year weight change (p = 0.001), while external disinhibition did not. Discussion: These results suggest that it is the disinhibition of eating in response to Internal cues that is associated with poorer long-term weight loss outcomes.
Huaizhu Li - One of the best experts on this subject based on the ideXlab platform.
-
the Internal and external Factor on coal ash slag viscosity at high temperatures part 2 effect of residual carbon on slag viscosity
Fuel, 2015Co-Authors: Lingxue Kong, Wen Li, Xiaoming Li, Huaizhu LiAbstract:Abstract As an important and inevitable component of gasification slag, residual carbon is an Internal Factor that influences the flow properties of slag. In this study, the effect of residual carbon on slag viscosity was investigated. Viscosity of slag containing graphite was measured at 1350–1680 °C under an argon (Ar) atmosphere. The fusibility of ash was examined with thermomechanical analyzer (TMA). X-ray diffraction (XRD) was used to investigate the mineral composition of ash processed at high temperatures and that of the slag after viscosity measurement. FactSage was employed to calculate the free energy (ΔG) of the reactions within ash and slag at high temperatures. The slag viscosity increased with increasing the mass fraction of residual carbon, and a sharp increase of viscosity with decreasing temperature was observed for slags containing residual carbon. The presence of residual carbon led to the formation of crystalline phases, and it had a significant effect on slag viscosity when the mass fraction exceeded 5%. Quartz and mullite was the two main crystalline phases for slags with less than 5% residual carbon. However, when the mass fraction of residual carbon was more than 5%, moissanite as well as quartz and mullite were formed in slags. Ash fusibility increased with increasing the mass fraction of residual carbon for the same reason. Thus, less than 5% of residual carbon within slag is desirable in order to prevent the above problems. FactSage calculation revealed that SiO2 preferred to react with CaO and Al2O3 to form anorthite and mullite at high temperatures. Moissanite was produced by carbothermic reaction among anorthite, mullite, free SiO2 and residual carbon. Furthermore, SiO2 became difficult to react with graphite as it was chemically combined with CaO and Al2O3. Due to the low ΔG of carbothermic reaction between SiO2 and residual carbon, coals with high S/A ratios are favorable to the carbothermic reaction due to the abundant free SiO2 in the ash and slag.
Heather M Niemeier - One of the best experts on this subject based on the ideXlab platform.
-
Internal disinhibition predicts weight regain following weight loss and weight loss maintenance
Obesity, 2007Co-Authors: Heather M Niemeier, Suzanne Phelan, Joseph L Fava, Rena R WingAbstract:Objective: The disinhibition scale of the Eating Inventory predicts weight loss outcome; however, it may include multiple Factors. The purpose of this study was to examine the Factor structure of the disinhibition scale and determine how its Factors independently relate to long-term weight loss outcomes. Research Methods and Procedures: Exploratory Factor analysis of the disinhibition scale was conducted on 286 participants in a behavioral weight loss trial (TRIM), and confirmatory Factor analysis was conducted on 3345 members of the National Weight Control Registry (NWCR), a registry of successful weight loss maintainers. Multivariate regressions were used to examine the relationships between the disinhibition scale Factors and weight over time in both samples. Results: Using baseline data from TRIM, two Factors were extracted from the disinhibition scale: 1) an “Internal” Factor that described eating in response to Internal cues, such as feelings and thoughts; and 2) an “external” Factor that described eating in response to external cues, such as social events. This Factor structure was confirmed using confirmatory Factor analysis in the NWCR. In TRIM, Internal disinhibition significantly predicted weight loss at 6 months (p = 0.03) and marginally significantly predicted weight loss at 18 months (p = 0.06), with higher levels of Internal disinhibition at baseline predicting less weight loss; external disinhibition did not predict weight loss at any time-point. In NWCR, Internal disinhibition significantly predicted one-year weight change (p = 0.001), while external disinhibition did not. Discussion: These results suggest that it is the disinhibition of eating in response to Internal cues that is associated with poorer long-term weight loss outcomes.
Lingxue Kong - One of the best experts on this subject based on the ideXlab platform.
-
the Internal and external Factor on coal ash slag viscosity at high temperatures part 2 effect of residual carbon on slag viscosity
Fuel, 2015Co-Authors: Lingxue Kong, Wen Li, Xiaoming Li, Huaizhu LiAbstract:Abstract As an important and inevitable component of gasification slag, residual carbon is an Internal Factor that influences the flow properties of slag. In this study, the effect of residual carbon on slag viscosity was investigated. Viscosity of slag containing graphite was measured at 1350–1680 °C under an argon (Ar) atmosphere. The fusibility of ash was examined with thermomechanical analyzer (TMA). X-ray diffraction (XRD) was used to investigate the mineral composition of ash processed at high temperatures and that of the slag after viscosity measurement. FactSage was employed to calculate the free energy (ΔG) of the reactions within ash and slag at high temperatures. The slag viscosity increased with increasing the mass fraction of residual carbon, and a sharp increase of viscosity with decreasing temperature was observed for slags containing residual carbon. The presence of residual carbon led to the formation of crystalline phases, and it had a significant effect on slag viscosity when the mass fraction exceeded 5%. Quartz and mullite was the two main crystalline phases for slags with less than 5% residual carbon. However, when the mass fraction of residual carbon was more than 5%, moissanite as well as quartz and mullite were formed in slags. Ash fusibility increased with increasing the mass fraction of residual carbon for the same reason. Thus, less than 5% of residual carbon within slag is desirable in order to prevent the above problems. FactSage calculation revealed that SiO2 preferred to react with CaO and Al2O3 to form anorthite and mullite at high temperatures. Moissanite was produced by carbothermic reaction among anorthite, mullite, free SiO2 and residual carbon. Furthermore, SiO2 became difficult to react with graphite as it was chemically combined with CaO and Al2O3. Due to the low ΔG of carbothermic reaction between SiO2 and residual carbon, coals with high S/A ratios are favorable to the carbothermic reaction due to the abundant free SiO2 in the ash and slag.
Joseph L Fava - One of the best experts on this subject based on the ideXlab platform.
-
Internal disinhibition predicts weight regain following weight loss and weight loss maintenance
Obesity, 2007Co-Authors: Heather M Niemeier, Suzanne Phelan, Joseph L Fava, Rena R WingAbstract:Objective: The disinhibition scale of the Eating Inventory predicts weight loss outcome; however, it may include multiple Factors. The purpose of this study was to examine the Factor structure of the disinhibition scale and determine how its Factors independently relate to long-term weight loss outcomes. Research Methods and Procedures: Exploratory Factor analysis of the disinhibition scale was conducted on 286 participants in a behavioral weight loss trial (TRIM), and confirmatory Factor analysis was conducted on 3345 members of the National Weight Control Registry (NWCR), a registry of successful weight loss maintainers. Multivariate regressions were used to examine the relationships between the disinhibition scale Factors and weight over time in both samples. Results: Using baseline data from TRIM, two Factors were extracted from the disinhibition scale: 1) an “Internal” Factor that described eating in response to Internal cues, such as feelings and thoughts; and 2) an “external” Factor that described eating in response to external cues, such as social events. This Factor structure was confirmed using confirmatory Factor analysis in the NWCR. In TRIM, Internal disinhibition significantly predicted weight loss at 6 months (p = 0.03) and marginally significantly predicted weight loss at 18 months (p = 0.06), with higher levels of Internal disinhibition at baseline predicting less weight loss; external disinhibition did not predict weight loss at any time-point. In NWCR, Internal disinhibition significantly predicted one-year weight change (p = 0.001), while external disinhibition did not. Discussion: These results suggest that it is the disinhibition of eating in response to Internal cues that is associated with poorer long-term weight loss outcomes.