Preparation of formyl cellulose and its enhancement effect on the mechanical and barrier properties of polylactic acid films

Cellulose was modified by formic acid to prepare formyl cellulose (FC). The amount of formyl groups in FC was adjusted by controlling the reaction time, reaction temperature, and formic acid concentration. Then, FC was used to reinforce polylactic acid (PLA) films prepared by solution casting. Scanning electron microscopy (SEM) shows that long rod-like cellulose particles were broken into short rods after formylation and the introduction of FC made PLA surface rougher. The mechanical properties of PLA/FC films were improved by the inclusion of FC. Compared to pure PLA film, the PLA/FC composite film with 1 wt% FC (containing 15.79% formyl groups) showed a 48.59% increase in tensile strength and a 346% increase in Young's modulus. The addition of FC also resulted in better water barrier properties. The moisture absorption capacity and water vapor permeability were 40.56% and 51.43% lower than those of the pure-PLA film. The enhancement in properties for PLA/FC composites could be ascribed to the improved compatibility between PLA and cellulose with the introduction of hydrophobic formate groups. The PLA/FC composite films developed in this work could be highly potential for food packaging

Factors influencing postpartum blood glucose screening among women with prior gestational diabetes mellitus in a rural community.

The aims of the present study were: a) to investigate the current state of postpartum glucose screening in rural China; and b) to explore the factors influencing postpartum blood glucose screening among women with prior GDM based on Andersen's behavioural model of health service use. A multisite, cross-sectional study design, conducted from November 2017 to January 2018. A total of 465 women with prior GDM were included from two county-level hospitals in rural China. The potential influencing factors for postpartum blood glucose screening based on Andersen's behavioural model, including predisposing, enabling, and need factors, were collected by self-reported questionnaires. Chi-square tests and logistic regression were used to explore the influence of these factors on whether screening of blood glucose level after delivery occurred. The mean age of the women was 31.92 years old (SD 5.16) and the mean time after delivery was 16.73 months (SD 15.07). The postpartum glucose screening proportion was 32.7%. Women who did not have a full-time job (p= .011) (predisposing factor), had not received any treatment for GDM (p= .002), and were not informed about screening plans for diabetes by health professionals (p < .001) (enabling factor) were less likely to engage in postpartum glucose screening. The need factor, high actual risk of developing type 2 diabetes mellitus (T2DM), was not associated with postpartum blood glucose screening (p> .05). In rural China, most women with prior GDM were not screened for T2DM after delivery. The women with prior GDM who did not have a full-time job or had not received any prior treatment for GDM should be the target population for health education on postpartum glucose screening. There is a need for data on postpartum blood glucose testing rates among rural women. Future interventions aimed at increasing postpartum blood glucose screening are needed

Factors influencing postpartum blood glucose screening among women with prior gestational diabetes mellitus in a rural community

AIMS:The aims of the present study were: a) to investigate the current state of postpartum glucose screening in rural China; and b) to explore the factors influencing postpartum blood glucose screening among women with prior GDM based on Andersen's behavioural model of health service use. DESIGN:A multisite, cross-sectional study design, conducted from November 2017 to January 2018. METHODS:A total of 465 women with prior GDM were included from two county-level hospitals in rural China. The potential influencing factors for postpartum blood glucose screening based on Andersen's behavioural model, including predisposing, enabling, and need factors, were collected by self-reported questionnaires. Chi-square tests and logistic regression were used to explore the influence of these factors on whether screening of blood glucose level after delivery occurred. RESULTS:The mean age of the women was 31.92 years old (SD 5.16) and the mean time after delivery was 16.73 months (SD 15.07). The postpartum glucose screening proportion was 32.7%. Women who did not have a full-time job (p= .011) (predisposing factor), had not received any treatment for GDM (p= .002), and were not informed about screening plans for diabetes by health professionals (p < .001) (enabling factor) were less likely to engage in postpartum glucose screening. The need factor, high actual risk of developing type 2 diabetes mellitus (T2DM), was not associated with postpartum blood glucose screening (p> .05). CONCLUSIONS:In rural China, most women with prior GDM were not screened for T2DM after delivery. The women with prior GDM who did not have a full-time job or had not received any prior treatment for GDM should be the target population for health education on postpartum glucose screening. IMPACT:There is a need for data on postpartum blood glucose testing rates among rural women. Future interventions aimed at increasing postpartum blood glucose screening are needed

Erratum to: Performance evaluation of operational atmospheric correction algorithms over the East China Seas (Chinese Journal of Oceanology and Limnology, (2017), 35, 1, (1-22), 10.1007/s00343-016-5170-6)

Unfortunately for all articles of Vol. 35 No. 1 the future journal title “Journal of Oceanology and Limnology” was used instead of the current journal title “Chinese Journal of Oceanology and Limnology”. All articles in the issue are affected. Please make sure to cite the articles with the following Vol. and No. info: Chinese Journal of Oceanology and Limnology, Vol. 35 No. 1, [page range]

Erratum to : Performance evaluation of operational atmospheric correction algorithms over the East China Seas (Chinese Journal of Oceanology and Limnology, (2017), 35, 1, (1-22), 10.1007/s00343-016-5170-6)

Unfortunately for all articles of Vol. 35 No. 1 the future journal title “Journal of Oceanology and Limnology” was used instead of the current journal title “Chinese Journal of Oceanology and Limnology”. All articles in the issue are aff ected. Please make sure to cite the articles with the following Vol. and No. info: Chinese Journal of Oceanology and Limnology, Vol. 35 No. 1, [page range]