Triphasic Hydroxysilylation of Alkenes by Mechanically Piezoelectric Catalysis.

The 1,2-hydroxysilylation of alkenes is crucial for synthesizing organosilicon compounds which are key intermediates in material science, pharmaceuticals, and organic synthesis. The development of strategies employing hydrogen atom transfer pathways is currently hindered by the existence of various competing reactions. Herein, we reported a novel mechanochemical strategy for the triphasic 1,2-hydroxysilylation of alkenes through a single-electron-transfer pathway.

Knowledge status of skin tear prevention and its demographic and occupational influencing factors: A National cross-sectional survey among nurses.

Aim: A skin tear (ST) is a common skin injury that is often misdiagnosed or overlooked. This study examined the current state of nurses' ST knowledge and its influencing factors.

Design: A national cross-sectional survey combined with a quantitative analysis was used to provide evidence of poor ST knowledge among nurses and its influencing factors.

Organic Reactions Enabled by Mechanical Force-Induced Single Electron Transfer.

Mechanochemical reactions, achieved through milling, grinding, or other mechanical actions, have emerged as a solvent-free alternative to traditional solution-based chemistry. Mechanochemistry not only provides the opportunity to eliminate bulk solvent use, reducing waste generation, but also unveils a new reaction strategy which enables the realization of reactions previously inaccessible in solution. While the majority of organic reactions facilitated by mechanical force traditionally follow two-electron transfer pathways similar to their solution-based counterparts, the field of mechanochemically induced single-electron transfer (SET) reactions has witnessed rapid development.

Copper-Catalyzed 1,4-Trifluoromethylthio-Arylsulfonylation of 1,3-Enynes via the Insertion of Sulfur Dioxide.

A copper-catalyzed trifluoromethylthio-arylsulfonylation between 1,3-enynes, AgSCF, aryldiazonium tetrafluoroborates, and SO (from SOgen) is presented, which could introduce sulfone, SCF, and allene moieties into one molecule simultaneously. This strategy features mild reaction conditions, good substrate compatibility, and excellent regioselectivity. The products obtained have the potential for further conversion into other valuable compounds.

[Establishment of a nomogram model for the early diagnosis of childhood sepsis].

Objectives: To establish a nomogram model for the early diagnosis of sepsis in children.

Methods: A total of 76 children with sepsis who were admitted to Sichuan Maternal and Child Health Hospital from January 2018 to June 2021 were retrospectively selected as the sepsis group. After matching for sex and age (±2 years) at a ratio of 1:1:1, 76 children with local infection who were hospitalized during the same period were enrolled as the local infection group, and 76 children with non-infectious diseases were enrolled as the control group.

Effect of comprehensive nursing intervention in children with respiratory failure.

Objective: To investigate the effect of comprehensive nursing intervention in the management of pediatric patients with respiratory failure.

Methods: A total of 60 pediatric patients were selected as research subjects, and the clinical data were collected and retrospectively investigated. The patients were divided either into a control group (n=30) or an observation group (n=30) according to the nursing care methods.

Maternal Folic Acid Supplementation, Dietary Folate Intake, and Low Birth Weight: A Birth Cohort Study.

Objectives: To investigate the independent and collective effects of maternal folic acid supplementation or dietary folate intake on the risk of low birth weight (LBW), and to further comprehensively examine the joint associations of folic acid supplementation and dietary folate intake with LBW by various clinical subtypes.

Design: Participants were recruited from Gansu Provincial Maternity and Child Care Hospital. A standardized and structured questionnaire was distributed to collect demographic factors, reproductive and medical history, occupational and residential history, physical activity, and diet.

Nickel-Catalyzed Cross-Electrophile Coupling Reactions between Allylic Acetates and -Difluorovinyl Tosylate.

A nickel-catalyzed cross-electrophile coupling of allylic acetates and -difluorovinyl tosylate is presented, which first achieves allylic -difluoroolefins via C(sp)-C(sp) cross-electrophile coupling. In addition, this protocol was performed under mild reaction conditions, affording a variety of allylic -difluorovinyl arenes in moderate to good yields. Moreover, both linear and branched allylic acetate could produce a linear cross-coupling product exclusively.

Acceptorless Dehydrogenative Cross-Coupling of Primary Alcohols Catalyzed by an N-Heterocyclic Carbene-Nitrogen-Phosphine Chelated Ruthenium(II) Complex.

The acceptorless dehydrogenative cross-coupling of primary alcohols to form cross-esters with the liberation of H gas was enabled using a [RuCl(η-CH)(κ-CNP)][PF]Cl complex as the catalyst. This sustainable protocol is applicable to a broad range of primary alcohols, particularly for the sterically demanding ones, featuring good functional group tolerance and high selectivity. The good catalytic performance can be attributed to the nitrogen-phosphine-functionalized N-heterocyclic carbene (CNP) ligand, which adopts a facial coordination mode as well as the facile dissociation of coordinated benzene.

CXCL14 facilitates the growth and metastasis of ovarian carcinoma cells via activation of the Wnt/β-catenin signaling pathway.

Background: There is an urgent need to identify potential targets in anticancer therapy to improve the survival and prognosis of patients with ovarian cancer (OC). Herein, we investigated the functional significance of chemokine (C-X-C motif) ligand 14 (CXCL14) in OC cell growth and epithelial-mesenchymal transition (EMT).

Methods: qRT PCR and western blotting was used to detect CXCL14 mRNA level and protein expression, respectively.

Association between Iron Supplementation, Dietary Iron Intake and Risk of Moderate Preterm Birth: A Birth Cohort Study in China.

Background: To evaluate the independent and collective effects of maternal iron supplementation and dietary iron intake upon the risk of moderate preterm birth and its subtypes.

Methods: In this birth cohort study, 1019 pregnant women with moderate preterm birth and 9160 women with term birth were recruited at Gansu Provincial Maternity and Child Care Hospital from 2010-2012 in China. Unconditional logistic regression models were utilized to evaluate the association between maternal iron supplementation, dietary iron intake, and the risk of moderate preterm birth and its subtypes.

Metal- and Base-Free C(sp)-H Arylsulfonylation of Enamides for Synthesis of ()-β-Amidovinyl Sulfones via the Insertion of Sulfur Dioxide.

A metal- and base-free C(sp)-H direct arylsulfonylation of secondary and tertiary enamides with aryldiazonium salts and ex situ generated SO (from SOgen) is presented. This method runs smoothly to produce β-amidovinyl sulfones with excellent stereoselectivities in moderate to excellent yields. Moreover, this strategy features good functional group tolerance and environmentally benign reaction conditions.

Determining optimal gestational weight gain (GWG) in a northwest Chinese population: A CONSORT.

To determine optimal gestational weight gain (GWG) for the Chinese population.Live singleton deliveries at the largest maternal & childcare hospital in northwest China from 2010 to 2012 were analyzed retrospectively. Multivariable logistic regression analysis was conducted to determine the lowest aggregated risk of interested perinatal outcomes based on Chinese adult body mass index (BMI) categories.

Cooking stoves and risk of birth defects in urban China.

Introduction: Birth defects are a leading cause of infant death. Pregnant women spend a large amount of time indoors, and little research from population-based studies has investigated the association between indoor air pollution and birth defects. We aimed to examine whether using coal, biomass, or electromagnetic stoves for cooking is associated with risk of birth defects compared to using gas stoves.

An observational study on Ca supplementation and dietary intake during pregnancy on low birth weight and small for gestational age.

Objective: To evaluate the effects of dietary Ca intake and Ca supplementation during pregnancy on low birth weight (LBW) and small for gestational age (SGA) infants.

Design: A birth cohort study was conducted in 2010-2012 at the Gansu Provincial Maternity and Child Care Hospital in Lanzhou, China.

Setting: A birth cohort study.

Folic acid supplementation, dietary folate intake and risk of small for gestational age in China.

Objective: To investigate the hypothesis that folic acid supplementation and dietary folate intake before conception and during pregnancy reduce the risk of small for gestational age (SGA) and to examine the joint effect of folic acid supplementation and dietary folate intake on the risk of SGA.

Design: Participants were interviewed by trained study interviewers using a standardized and structured questionnaire. Information on birth outcomes and maternal complications was abstracted from medical records and dietary information was collected via a semi-quantitative FFQ before conception and during pregnancy.

Effect of BiO content on the microstructure and electrical properties of SrBiNbO piezoelectric ceramics.

Lead-free ceramics, SrBiNbO-BiO (SBN-Bi), with different Bi contents of which the molar ratio, (Sr) : (Bi) : (Nb), is 1 : 2(1 + /2) : 2 ( = -0.05, 0.0, 0.

Pre-pregnancy BMI, gestational weight gain and risk of preeclampsia: a birth cohort study in Lanzhou, China.

Background: To evaluate the independent and joint effects of maternal pre-pregnancy BMI and gestational weight gain (GWG) on the risk of preeclampsia and its subtypes.

Methods: A birth cohort study was conducted from 2010 to 2012 in Lanzhou, China. Three hundred fourty seven pregnant women with preeclampsia and 9516 normotensive women at Gansu Provincial Maternity and Child Care Hospital were included in the present study.

Maternal folic acid supplementation and dietary folate intake and congenital heart defects.

Background: It has been reported that folic acid supplementation before and/or during pregnancy could reduce the risk of congenital heart defects (CHDs). However, the results from limited epidemiologic studies have been inconclusive. We investigated the associations between maternal folic acid supplementation, dietary folate intake, and the risk of CHDs.

Drug-Resistant Tuberculosis among Children, China, 2006-2015.

Microbial drug resistance has become a major public health concern worldwide. To acquire epidemiologic data on drug-resistant tuberculosis (DR TB) among children, a major cause of illness and death for this population, we conducted a retrospective study of 2006-2015 data from 36 TB prevention and control institutions in Shandong Province, China. A total of 14,223 new TB cases, among which children (<18 years of age) accounted for only 5.

Trends and characteristics of drug-resistant tuberculosis in rural Shandong, China.

Objectives: The aim of this study was to describe the secular trends in drug-resistant tuberculosis (DR-TB) and to identify unique characteristics of multidrug-resistant tuberculosis (MDR-TB) in rural China.

Methods: A retrospective study was conducted using TB data collected from 36 TB prevention and control institutions serving rural populations in Shandong Province, China, for the period 2006-2015.

Results: Approximately 8.

Epidemiological trends and outcomes of extensively drug-resistant tuberculosis in Shandong, China.

Background: Extensively Drug-Resistant (XDR) Tuberculosis (TB) has posed a great threat to global health and finance systems, especially for developing countries with high TB and Multidrug-Resistant (MDR) TB burden.

Methods: We retrospectively analyzed HIV-uninfected TB case confirmed and treated in Shandong Provincial Chest Hospital (SPCH) between January 2008 and December 2015. Unique characteristics of XDR-TB were identified; its longitudinal changes and survival were analyzed.

[Comparation of Toxic Effect of Silicious Mineral Dusts on Lung Epithelial A549 Cells].

Considering the high contents of minerals and the potential health risk of mineral dusts to human and the environment, this paper was aimed to figure out the toxic effect and mechanism of four common mineral particles (quartz, albite, sericite, and montmorillonite). Cytotoxicity assays for cell viability (MTT assay), membrane integrity (LDH assay), oxidative stress (HO assay) and inflammatory cytokines (TNF-α and IL-6 assay) were applied. The results showed the influence of these mineral particles on A549 cell viability followed the order of momtmorillonite > cericite≥quartz > albite.

Maternal tea consumption and the risk of preterm delivery in urban China: a birth cohort study.

Background: Studies investigating the relationship between maternal tea drinking and risk of preterm birth have reached inconsistent results.

Methods: The present study analyzed data from a birth cohort study including 10,179 women who delivered a singleton live birth were conducted in Lanzhou, China between 2010 and 2012.

Results: Drinking tea (OR = 1.

Epidemiological Trends of Drug-Resistant Tuberculosis in China From 2007 to 2014: A Retrospective Study.

The emergence and spread of drug-resistant tuberculosis (DR-TB) has become the major concern in global TB control nowadays due to its limited therapy options and high mortality. A comprehensive evaluation for the epidemiological trends of DR-TB in mainland China, of which TB incidences remain high, is essential but lacking. This study aimed to describe the trends of DR-TB overtime, especially multidrug-resistant TB (MDR-TB); and to identify unique characteristics of MDR-TB cases compared with drug-susceptible TB cases in Mainland China.