3D Wood Microfilter for Fast and Efficient Removal of Heavy Metal Ions from Water.

Adsorption is an effective method for the treatment of heavy metal ions in water; however, the existing adsorbents are complicated to prepare, and costly and difficult to recover. In this work, a 3D wood microfilter was prepared by modifying wood for the removal of heavy metal contaminants from water. First, a green deep eutectic solvent was used to remove lignin from beech wood. Then citric acid and l-cysteine were sequentially used to graft carboxyl and sulfhydryl groups (-SHs) on the surface of cellulose. Finally, a three-dimensional wood microfilter with an abundant porous structure and adsorption sites was formed. The adsorption kinetics and adsorption isotherms of heavy metal ions on the 3D wood microfilter were systematically investigated using Cu2+ and Cd2+ as model species. The results showed that the 3D wood microfilter had a fast adsorption rate and high saturation capacity for both Cu2+ and Cd2+. Based on the advantages of easy processing and multilayer assembly and stacking, a three-layer wood microfilter was designed to achieve high flux rate (1.53 × 103 L m-2 h-1) and high efficiency (>98%) for the removal of heavy metal ions in water. The enhancement mechanism of the adsorption process of Cu2+ and Cd2+ by the 3D wood microfilter was investigated using SEM and EDS, FTIR, and XPS characterization. The simple synthesis method and high adsorption efficiency of this wood microfilter provide a new strategy for the preparation of cheap, efficient, and recyclable adsorbents for heavy metal ions in water.

The mediating effect of psychological empowerment on the relationship between work environment and clinical decision-making among midwives: a multicentre cross-sectional study.

BACKGROUND: Clinical decision-making is considered an essential behaviour in clinical practice. However, no research has been done to examine the associations among midwives' clinical decision-making, work environment and psychological empowerment. Thus, this study aimed to determine the influence of work environment on midwives' clinical decision-making and confirm the mediating role of psychological empowerment. METHOD: This study was designed as a multicentre cross-sectional study, and included 602 registered midwives from 25 public hospitals in China. A sociodemographic questionnaire, Work Environment Scale, Psychological Empowerment Scale and Clinical decision-making Scale were applied. A structural equation model was conducted to estimate the hypothesis model of the clinical decision-making among midwives and explore the potential mediating mechanism of midwives' clinical decision-making. This model was employed maximum likelihood estimation method and bootstrapping to examine the statistical significance. RESULTS: The mean score of clinical decision-making among midwives was 143.03 ± 14.22, at an intermediate level. The data of this hypothesis model fitted well, and the results showed that work environment positively affected psychological empowerment, which in turn positively affected clinical decision-making; psychological empowerment partly mediated the relationship between work environment and clinical decision-making among midwives. CONCLUSIONS: Midwives' clinical decision-making could be promoted directly or indirectly by providing a healthy work environment and improving psychological empowerment. It is essential for hospital managers to pay attention to the assessment of the midwives' work environment and actively improve it, such as establishing a supportive, fair and just workplace, and maintaining effective communication with midwives. Furthermore, managers can also promote midwives' clinical decision-making behaviour by enhancing their psychological empowerment via enhancing job autonomy.

The influence of psychological response and security sense on pregnancy stress during the outbreak of coronavirus disease 2019: A mediating model.

AIMS AND OBJECTIVES: To observe the psychological status of pregnant women during COVID-19 pandemic, and to test a hypothetical model that estimates the influence of psychological response to COVID-19 and security sense on pregnancy stress. BACKGROUND: COVID-19 advanced rapidly and then spread worldwide. Pregnant women were more susceptible to the COVID-19 infection. Furthermore, it is not clear whether this infection will increase the risk of congenital monstrosity, foetal growth restriction, premature delivery or cause other long-term adverse effects. DESIGN: A descriptive, cross-sectional survey. METHODS: A total of 331 pregnant women participated in this study. And this research adhered to the STROBE guideline. The psychological questionnaire for emergent events of public health, pregnancy stress scale and security questionnaire were used to collect data. The hypothetical path model was tested using the SPSS version 25.0 software and AMOS version 26.0 software. RESULTS: Fear and depression were the most common psychological responses among pregnant women during the COVID-19 pandemic. The hypothesis model of this study fitted the data well, and the results showed that psychological response positively affected pregnancy stress, while security sense negatively affected pregnancy stress; security sense mediated between psychological response and pregnancy stress. CONCLUSION: Nurses and midwives can help reduce the stress in pregnant women by alleviating their psychological response to the COVID-19 pandemic and by improving their security sense. RELEVANCE TO CLINICAL PRACTICE: It is essential for the health staff to build trust with pregnant women and their families, and communicate accurate information to them. Nurses should promptly conduct a psychological response evaluation and psychological guidance for pregnant women to alleviate their fears and hypochondria related to COVID-19.

Effect of midwife-led care on birth outcomes of primiparas.

BACKGROUND: The high caesarean section rate is a prominent public health problem in China. AIM: This study aimed to determine the effects of midwife-led care during labour on birth outcomes for healthy primiparas. DESIGN: Randomized controlled trial. SETTING: The Obstetrics Department of Fujian Provincial Maternity and Child Health Hospital. METHODS: A total of 666 primiparas in labour were randomly divided into an intervention and control group (333 in each group). The intervention group received a midwife-led model of care during labour. RESULTS: Data from 648 cases (331 intervention group and 317 control group) were analysed. The intervention group was less likely to experience caesarean section, postpartum haemorrhage, opiate analgesia, vaginal examinations, neonatal asphyxia, and neonatal hospitalization and was more likely to experience shorter length of labour and vaginal birth than the control group (all, P < 0.05). No differences were found in the number of artificial rupture of membranes and oxytocin use (P > 0.05). CONCLUSIONS: Midwife-led care can reduce the caesarean section rate, promote normal birth, improve birth outcomes, and promote maternal and child health.

Auricular bean embedding improves urination in epidural labor analgesia: A single center randomized controlled study.

BACKGROUND: Acupoint buried beans on the auricle is a feasible method to prevent and treat postpartum urinary retention. OBJECTIVE: This study investigated the effect of auricular acupoint buried beans on postpartum urination and maternal and fetal outcomes following epidural analgesia for labor. METHODS: Two hundred forty primiparas underwent vaginal trial labor analgesia from May 2020 to January 2021 and were randomly placed into the intervention and control groups. Both groups received epidural labor analgesia. Maternal urination during labor, 2 h postpartum, and the time for first postpartum urination were recorded as primary outcomes, with maternal and infant outcomes documented as secondary results. Statistical analysis was performed using the independent sample t-test, non-parametric rank-sum, or chi-square test using the SPSS Statistics 25.0 software. RESULTS: Two hundred eight study participants were subsequently included in the results, i.e., 105 patients in the intervention group and 103 in the control group. The intervention group comprised a significantly lower number of patients with excessive residual urine volume at cervical dilatation of 5-6 cm (P< 0.05). The total postpartum score of the intervention group was lower than in the control group (P< 0.01), and the time to first urination was shorter compared with the control group (P< 0.05). In the intervention group, the time of labor analgesia, the duration of the first stage of labor, and the total labor time were shorter compared with the control group (P< 0.01). CONCLUSION: Auricular acupoint embedded beans can improve the urination status at cervical dilatation of 5-6 cm and 2 h postpartum, as well as significantly shorten the duration of labor.

(E)-2-Bromo-4-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino-meth-yl]-6-meth-oxy-phenyl 4-methyl-benzene-sulfonate.

In the title compound, C(26)H(24)BrN(3)O(5)S, the central benzene ring makes dihedral angles of 6.27 (6), 33.63 (6) and 69.31 (5)°, respectively, with the pyrazolone ring, the bromo-benzene ring and the terminal phenyl ring. An intra-molecular C-H⋯O hydrogen bond occurs. The crystal packing features weak non-classical C-Br⋯O inter-actions [Br⋯O = 3.222 (2) Å] that form inversion-related dimers.