Clinical application value of pre-pregnancy carrier screening in Chinese Han childbearing population.

Background: To explore the clinical application value of pre-conception expanded carrier screening (PECS) in the Chinese Han ethnicity population of childbearing age.

Methods: The results of genetic testing of infertile parents who underwent PECS in the Reproductive Medicine Center of the Second Affiliated Hospital of Zhengzhou University, China, from September 2019 to December 2021, were retrospectively analyzed. The carrier rate of single gene disease, the detection rate of high-risk parents, and the clinical outcome of high-risk parents were statistically analyzed.

Insights into the role of extracellular polymeric substances in Zn adsorption in different biological sludge systems.

The adsorption behavior of Zn in four different biological sludge systems, i.e. activated sludge, denitrification sludge, short-cut nitrification sludge, and anammox granules, was investigated.

Corrigendum to "Start-Up Characteristics of a Granule-Based Anammox UASB Reactor Seeded with Anaerobic Granular Sludge".

[This corrects the article DOI: 10.1155/2013/396487.].

Comparative evaluation of short-term stress of Cd(II), Hg(II), Pb(II), As(III) and Cr(VI) on anammox granules by batch test.

Batch experiments were conducted to investigate the short-term effects of Cd(II), Hg(II), Pb(II), As(III) and Cr(VI) on anammox activity, which are considered to be the top 5 toxic heavy metals in China. The IC values of Cd(II), Hg(II), Pb(II) and Cr(VI) were calculated to be 7.00, 2.

Enhanced short-cut nitrification in an airlift reactor by CaCO3 attachment on biomass under high bicarbonate condition.

The short-cut nitrification (SCN) performance of an airlift reactor (ALR) was investigated under increasing bicarbonate condition. The sequential increase of bicarbonate from 2.5 to 7.

Partial nitrification in an air-lift reactor with long-term feeding of increasing ammonium concentrations.

The partial nitrification (PN) performance under high ammonium concentrations was evaluated in an airlift reactor (ALR). The ALR was operated for 253days with stepwise elevation of ammonium concentration to 1400mg/L corresponding nitrogen loading rate of 2.1kg/m(3)/d.

[The relationship of ECG and pregnancy outcome of older pregnant woman in late pregnancy].

Objective: To observe the changes of electrocardiogram (ECG) and pregnancy outcome of the late pregnancy women.

Methods: Late pregnancy women were divided into two groups by age: over 35 group and under 35 group. The incidence of abnormal electrocardiogram was recorded when the patients were subjected to routine ECG examination.

The increasing interest of ANAMMOX research in China: bacteria, process development, and application.

Nitrogen pollution created severe environmental problems and increasingly has become an important issue in China. Since the first discovery of ANAMMOX in the early 1990s, this related technology has become a promising as well as sustainable bioprocess for treating strong nitrogenous wastewater. Many Chinese research groups have concentrated their efforts on the ANAMMOX research including bacteria, process development, and application during the past 20 years.

[Effect of different plant growth regulators on transplanting survival ratio of Haloxylon ammodendron seedling and parasitic ratio of Cistanche deserticola].

Objective: To study the effect of different plant growth regulators on the transplanting survival ratio of Haloxylon ammodendron seedlings and parasitic ratio of Cistanche deserticola.

Methods: Different combinations of PDJ and rooting powder were used for rooting soaking with Haloxylon ammodendron seedlings, then the survival ratio of Haloxylon ammodendron and parasitic conditions of Cistanche deserticola were statistical analyzed by SAS software.

Results: PDJ had promotable effect on the inoculating survival ratio of Haloxylon ammodendron and the parasitic ratio, parasitic number and size of Cistanche deserticola, but had no significant effect on the transplanting survival ratio.

[Calcium distribution in the developing anther of Lycium barbarurn L].

We used potassium antimonate to precipitate "exchangeable cellular Ca2+"-calcium that is sufficiently loosely bound to combine with antimonite, to investigate the feature of calcium distribution during anther development of Lycium barbarurn L. Before the stage of microspore mother cell, few calcium-induced precipitates were found in sporogenous cells and the somatic cells of anther wall. When microspore mother cell (MMC) preparing meiosis, calcium precipitates appeared in the cytoplasm of tapetal cells and callus wall surrounding MMC.

[Isolation and characterization of a DRE-binding transcription factor from Yinxin poplar (Populus alba x P. alba var. pyramidalis)].

Dehydration-Responsive Element Binding ( DREB) transcription factors, specifically binding with dehydration reponsive element (DRE), activate a variety of stress-responsive genes in plants under abiotic stresses (dehydration, high salt and low temperature). Using PCR and homologous EST search, we isolated a DREB-like gene from Yinxin poplar (Populus alba x P. alba var.