Prediction and classification of chemical composition of ancient glass objects based on generalized Shapley functions.

Ancient glass products have suffered from the baptism of time and experienced changes in the burial environment and weathering, resulting in a change in the proportions of their chemical composition and interfering with their accurate identification by later generations. In this paper, the chemical composition of ancient glass products is predicted and identified. First, the multivariate statistical ANOVA test is applied to explore the relationship between whether the cultural relics samples are weathered or not and the glass type, decoration, and color to derive a law of chemical composition of the cultural relics and to analyze the correlation and difference among the four factors. Second, compared with the relevant data of the existing glass products, the missing values are processed by using the method of filling in the plurality. The weathering condition of the sampling points of the samples whose surfaces are not weathered is judged by the "distance discrimination method." Combined with the characteristics of the lead-barium glass and the high-potassium glass, the law of the chemical composition content on the surface of the samples, weathered or not, is explored. The modeling of the gray prediction method was applied again to predict the chemical composition content before weathering. Finally, the generalized Shapley function of fuzzy measurement was used to analyze the correlation between indicators and the chemical compositions and their differences. The scheme proposed in this paper can solve the difficult problem of category judgment in archeology, which is of great significance in promoting the smooth progress of archaeological work.

Influence of one-day diabetes mellitus clinic management on blood glucose control and prognosis in patients with gestational diabetes mellitus.

OBJECTIVE: To explore the influence of the one-day diabetes mellitus (DM) clinic management model on blood glucose control and prognosis in patients with gestational diabetes mellitus (GDM). METHODS: A total of 930 patients diagnosed with GDM by oral glucose tolerance test screening at 24-28 weeks of gestation were selected from those who underwent outpatient prenatal checkups at our hospital and were randomly divided into one-day DM clinic group (n = 509) and control group (n = 421). A one-day DM clinic intervention was conducted in the one-day DM clinic group, and individualized dietary interventions and exercise instruction were given in the control group. RESULTS: The compliance rates of fasting blood glucose and two-hour postprandial blood glucose (2-h PPBG) were higher in the one-day DM clinic group than in the control group (p < .05). The compliance rates of the oral glucose tolerance test and insulin release test were higher in the one-day DM clinic group than in the control group (p < .05). There existed statistically significant differences in fasting blood glucose before delivery, together with the difference between fasting blood glucose at enrollment and before delivery and the difference between glycated hemoglobin at enrollment and before delivery (p < .05). CONCLUSION: The one-day diabetes mellitus clinic management model is more conducive to blood glucose control in patients with GDM and more conducive to the recovery of blood glucose and islet function in patients with GDM after delivery and to reduce the occurrence of adverse pregnancy outcomes.

The therapeutic effects of attending a one-day outpatient service on patients with gestational diabetes and different pre-pregnancy body mass indices.

Purpose: This study investigated the effects of attending a one-day outpatient service on the outcomes of patients with gestational diabetes mellitus (GDM) and different pre-pregnancy body mass indices (BMIs). Methods: The study recruited 311 pregnant women with GDM into a one-day outpatient service at The Fourth Hospital of Shijiazhuang from September 2019 to December 2021. They were randomly assigned to three groups, based on their pre-pregnancy BMI as follows: group A, BMI < 18.5 kg/m2; group B, 18.5 ≥ BMI > 25.0 kg/m2; group C, BMI ≥25 kg/m2. The following information was collected from all the participants: fasting blood glucose, hemoglobin A1c (HbA1C), insulin dose, gestational weight gain, weight gain after the one-day outpatient service, and perinatal outcomes. Results: The three groups showed significant differences in fasting blood glucose and HbA1C, insulin treatment rate, and the incidence of pregnancy hypertension/preeclampsia and neonatal jaundice (all P < 0.05). The rate of excessive gestational weight gain in all of the groups also reflected significant differences (P < 0.05). Group A showed the lowest weight gain, while group C gained the most weight. There is no significant difference in the incidences of hypertension/preeclampsia, neonatal jaundice, or premature birth between patients with weight loss/no weight gain and those with positive weight gain. Conclusion: One-day diabetes outpatient integrated management may effectively help to manage weight gain and blood glucose in patients with GDM and different pre-pregnancy BMIs. Dietary control after a GDM diagnosis may have helped to avoid weight gain entirely, as well as negative weight gain, but did not increase the risk of maternal and infant-related complications.

The Impact of the One-Day Clinic Diabetes Mellitus Management Model on Perinatal Outcomes in Patients with Gestational Diabetes Mellitus.

OBJECTIVE: The aim of the present study was to explore the impact of the one-day clinic diabetes mellitus (DM) management model on perinatal outcomes in patients with gestational diabetes mellitus (GDM). METHODS: A total of 995 patients who underwent prenatal checkups at our hospital and were diagnosed with GDM by oral glucose tolerance test (OGTT) screening at 24-28 weeks of gestational age were enrolled between December 2018 and August 2020. The patients were randomly divided into a study group (541 cases) and a control group (454 cases). One-day clinic intervention for DM was conducted in the study group, while individualized dietary interventions and exercise instruction were given in the control group. The perinatal outcomes of patients were compared between the two groups. RESULTS: In the study group, maternal weight gain, fasting blood glucose before delivery, the incidence of abnormality in postpartum OGTT, and abnormality of pancreatic islet function were lower than in the control group, and the differences were statistically significant (P < 0.05). The percentage of patients with insulin treatment in the study group was higher than in the control group, and the difference was statistically significant (P < 0.05). The incidence of premature rupture of membranes, macrosomia, and neonatal jaundice was lower in the study group than in the control group, and the differences were statistically significant (P < 0.05). CONCLUSION: The one-day clinic DM management model can effectively control weight gain and blood glucose levels during pregnancy in patients with GDM, resulting in a higher recovery rate of blood glucose and islet function after delivery and a lower incidence of premature rupture of membranes, macrosomia, and neonatal jaundice. The one-day clinic DM management model could therefore have profound implications for reducing and delaying the onset of postpartum type 2 diabetes in patients with GDM.

Critical thickness of a surface-functionalized coating for enhanced lithium storage: a case study of nanoscale polypyrrole-coated FeS2 as a cathode for Li-ion batteries.

The encapsulation or coating of conductive materials is an effective strategy to increase the electrochemical ion-storage performance of some promising electrode materials such as transition metal oxides and sulfides, which are low-cost and have high capacity, but their practical applications are hindered by their intrinsically low conductivity and large volume changes during cycling; however, to date, the effect of the thickness of conductive layers on the ion-storage performance has been rarely studied. In this study, taking nanoscale polypyrrole (PPY)-coated FeS2 as an example, the effect of the critical thickness of the conductive PPY coating on the lithium-ion storage performance of (PPY)-coated FeS2 as a cathode of rechargeable lithium-ion batteries (LIBs) was investigated. Via a facile vapor-phase polymerization method, uniform PPY coatings with the thickness of 1-18 nm on microsized FeS2 particles were prepared. It was found that the critical thickness of PPY was 5 nm, at which the PPY-coated FeS2 cathode exhibited remarkablely superior high-rate capability (808, 583, 543, 511, and 489 mA h g-1 at 0.1, 1, 2, 5 and 10 A g-1, respectively) and long-term stability (504 mA h g-1 at 1.0 A g-1 after 500 cycles) as compared to those with other coating thicknesses owing to the acheivement of optimal electrical conductivity and ion diffusion efficiency. Thus, this study provides an insight into the critical thickess of a surface-functionalized coating of active materials and opens a new avenue for the futher enhancement of the performance of energy storage deivces.