The effect of laparoscopic and abdominal surgery on the treatment of ectopic pregnancy: a systematic review and meta-analysis.

Objective: This study aimed to compare the efficacy of laparoscopic surgery (LS) and abdominal surgery (AS) in ectopic pregnancy surgery.

Methods: A computer-based search was conducted in several databases such as CNKI, Wanfang data, VIP data, Chinese Biomedical Literature Database (CBM disc), PubMed, Cochrane Library, Embase, and others to gather domestic and foreign literature on treating ectopic pregnancy. This search was carried out from the inception of each database to July 2022.

TMS-evoked potential in the dorsolateral prefrontal cortex to assess the severity of depression disease: a TMS-EEG study.

The combined use of transcranial magnetic stimulation and electroencephalography (TMS-EEG), as a powerful technique that can non-invasively probe the state of the brain, can be used as a method to study neurophysiological markers in the field of psychiatric disorders and discover potential diagnostic predictors. This study used TMS-evoked potentials (TEPs) to study the cortical activity of patients with major depressive disorder depression (MDD) and the correlation with clinical symptoms to provide an electrophysiological basis for the clinical diagnosis. A total of 41 patients and 42 healthy controls were recruited to study.

[Soil stoichiometry characteristics under different land use types in the Horqin Sandy Land, China].

The stoichiometry characteristics of carbon (C), nitrogen (N), and phosphorus (P) is an important indicator of soil quality and ecosystem nutrient limitations. Exploring the effects of land use type and soil depth on soil nutrient stoichiometry can clarify soil nutrient cycling. In this study, we collected soil samples from sites with five different land use types (irrigated cropland, rainfed cropland, sandy grassland, fixed dunes, and mobile dunes) in the Horqin Sandy Land, and evaluated the influences of land use type and soil depth on the contents and stoichiometry characteristics of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP).

Multiple Substrate Binding Mode-Guided Engineering of a Thermophilic PET Hydrolase.

Thermophilic polyester hydrolases (PES-H) have recently enabled biocatalytic recycling of the mass-produced synthetic polyester polyethylene terephthalate (PET), which has found widespread use in the packaging and textile industries. The growing demand for efficient PET hydrolases prompted us to solve high-resolution crystal structures of two metagenome-derived enzymes (PES-H1 and PES-H2) and notably also in complex with various PET substrate analogues. Structural analyses and computational modeling using molecular dynamics simulations provided an understanding of how product inhibition and multiple substrate binding modes influence key mechanistic steps of enzymatic PET hydrolysis.

Do Rural-Urban Identities Affect Individuals' Health? Evidence From China.

We study the relationship between household registration status (Hukou) and the state of individuals' health to find out whether inequality in health between urban and rural population exists in China. We have used the probit model to regress the state of health on household registration using the individual-level data of the 2018 CFPS survey. We find that inequality in health between urban and rural population does exist in China.

Fusion of Chitin-Binding Domain From SYBC-H1 to the Leaf-Branch Compost Cutinase for Enhanced PET Hydrolysis.

Polyethylene terephthalate (PET) is a mass-produced petroleum-based non-biodegradable plastic that contributes to the global plastic pollution. Recently, biocatalytic degradation has emerged as a viable recycling approach for PET waste, especially with thermophilic polyester hydrolases such as a cutinase (LCC) isolated from a leaf-branch compost metagenome and its variants. To improve the enzymatic PET hydrolysis performance, we fused a chitin-binding domain (ChBD) from SYBC-H1 to the C-terminus of the previously reported LCC variant, demonstrating higher adsorption to PET substrates and, as a result, improved degradation performance by up to 19.

[Soil amelioration of different vegetation types in saline-alkali land of the Yellow River Delta, China].

Yellow River Delta is an important distribution area of coastal saline-alkali land in China. Revegetation is the main technology for ecological restoration during saline-alkali land amelioration. To explore the effects of different vegetation types on soil improvement in saline-alkali land and get the suitable model in the Yellow River Delta, four tree-grass compound models, Salix americana+Distichlis spicata, S.

Transport characteristics of salt ions in soil columns planted with Tamarix chinensis under different groundwater levels.

The groundwater level is the main factor affecting the distribution of soil salinity and vegetation in the Yellow River Delta (YRD), China, but the response relationship between the spatial distribution of soil salt ions and the groundwater level in the soil-Tamarix chinensis system remains unclear. In order to investigate the patterns of soil salt ions responding to groundwater levels, in the 'groundwater-soil-T. chinensis' system.

Surfactant-aided coal dust suppression: A review of evaluation methods and influencing factors.

There is an increasing trend in the occurrence of coal worker's pneumoconiosis even in developed countries such as the US and Australia who have believed such an issue have been well controlled in the past. Water spray is one of the most commonly applied methods for underground coal mines dust control, and research have shown the dust suppression efficiency can be greatly improved by adding surfactants. However, the literature appears to show inconsistent results that do not provide the coal mining industry with a clearly effective solution.

Temporal and spatial variation of extreme temperatures in an agro-pastoral ecotone of northern China from 1960 to 2016.

The agro-pastoral ecotone of northern China is one of the areas most sensitive to global temperature change. To analyze the temporal and spatial trends of extreme temperature events in this area, we calculated the values of 16 extreme-temperature indices from 1960 to 2016 based on data from 45 national meteorological stations. We found that the coldest-temperature indices decreased significantly and the warmest-temperature indices increased significantly.

Spatial pattern of soil organic carbon and total nitrogen, and analysis of related factors in an agro-pastoral zone in Northern China.

The spatial pattern of soil organic carbon (SOC) and total nitrogen (TN) densities plays a profound important role in estimating carbon and nitrogen budgets. Naiman Banner located in northern China was chosen as research site, a total of 332 soil samples were taken in a depth of 100 cm from the low hilly land in the southern part, sandy land in the middle part and an alluvial plain in the northern part of the county. The results showed that SOC and TN density initially decreased and then increased from the north to the south, The highest densities, were generally in the south, with the lowest generally in the middle part.

Activation of GLP-1 Receptor Enhances Neuronal Base Excision Repair via PI3K-AKT-Induced Expression of Apurinic/Apyrimidinic Endonuclease 1.

Glucagon-like peptide-1 (GLP-1) is an intestinal-secreted incretin that increases cellular glucose up-take to decrease blood sugar. Recent studies, however, suggest that the function of GLP-1 is not only to decrease blood sugar, but also acts as a neurotrophic factor that plays a role in neuronal survival, neurite outgrowth, and protects synaptic plasticity and memory formation from effects of β-amyloid. Oxidative DNA damage occurs during normal neuron-activity and in many neurological diseases.

Responses of Water and Salt Parameters to Groundwater Levels for Soil Columns Planted with Tamarix chinensis.

Groundwater is the main water resource for plant growth and development in the saline soil of the Yellow River Delta in China. To investigate the variabilities and distributions of soil water and salt contents at various groundwater level (GL), soil columns with planting Tamarix chinensis Lour were established at six different GL. The results demonstrated the following: With increasing GL, the relative soil water content (RWC) declined significantly, whereas the salt content (SC) and absolute soil solution concentration (CS) decreased after the initial increase in the different soil profiles.

[Association between joint of heat and noise and metabolic syndrome in steel workers].

Objective: To analyze the relationship between joint of heat and noise, and metabolic syndrome in a steel rolling factory workers.

Methods: A total of 590 steel workers were selected as subjects by cluster sampling method from workers of a steel factory. They were investigated by face to face way with the unified questionnaire which contents included personal information, occupational history, personal history, habits and other factors.

Vigorous-intensity physical activity is associated with metabolic syndrome among the Chinese middle-aged population: a cross-sectional study.

Objective: To examine the association and relative contribution of different levels of physical activity (PA) with metabolic syndrome (MS).

Methods: The cluster sampling method was used to recruit 8,750 community-based individuals between 40 and 60 years of age. MS was defined according to the International Diabetes Federation, 2005.

[Response of active nitrogen to salinity in a soil from the Yellow River Delta].

Soil salinity can inhibit the processes of nitrogen cycle, and the active nitrogen is the important indicator to reflect the turnover of nitrogen. A laboratory experiment was conducted to study the effect of soil salinity on the active nitrogen in a soil of the Yellow River Delta incubated aerobically under 25 degrees C for 45 days. Four levels of salinity (S1: 0.

[Germination and seedling growth of Artemisia halodendron under different incubation environments].

Artemisia halodendron is a dominant species in mobile and semi-mobile dunes of Horqin Sand Land. To investigate the germination character and seedling growth under different temperature and light conditions, the germination rate, germination index and growth of radicle and plumule were measured after treatments in laboratory and heating cabinet incubations. In the laboratory the light and temperature were near to nature condition, while in the heating cabinet it was kept at 25 degrees C with varying durations of light supply, including 24-, 12- and 0-hour light per day.

Effect of lead sulfide nanoparticles exposure on calcium homeostasis in rat hippocampus neurons.

PbS nanoparticles (NPs) is an important nanomaterial for biomedical imaging in living tissues. However, concerning the high toxicity, especially neurotoxicity, of Pb element, it is crucial that the toxicity assessment of "naked" PbS NPs should be adequately studied. In the current study, we systematically explored the neurotoxicity of PbS NPs in rats by measuring the body weight and brain coefficient changes, testing memory behaviors in Y-electric maze, and studying the neuronal ultrastructure and pathology in hippocampus.

Effects of grazing exclusion on soil properties and on ecosystem carbon and nitrogen storage in a sandy rangeland of Inner Mongolia, northern China.

The Horqin sandy rangeland of northern China is a seriously desertified region with a fragile ecology. The sandy alluvial and aeolian sediments have a coarse texture and loose structure and are therefore vulnerable to damage caused by grazing animals and wind erosion. We investigated whether grazing exclusion could enhance ecosystem carbon (C) and nitrogen (N) storage and thereby improve overall soil quality.

Rapid increase in the incidence of clinically diagnosed type 2 diabetes in Chinese in Harbin between 1999 and 2005.

Aim: To examine the recent trend in the incidence of clinically diagnosed type 2 diabetes during the period of 1999-2005 in Harbin, China.

Methods: The records of newly diagnosed type 2 diabetes from hospitals and clinics in Harbin were reported to the Harbin Centre for Disease Control and Prevention. About 3 million (33%) of the total population were from six metropolitan districts and over 6 million (67%) from the surrounding counties.

[Seasonal changes in foliar micro-and ultra structure of two Sabina species and their relationships with cold tolerance].

In this paper, the foliar micro-and ultra structure of Sabina przewalskii and S. chinensis during growth and dormancy seasons was observed under microscope and transmission electron microscope, and the foliar soluble sugar content was measured, aimed to probe into their relationships with cold tolerance. The results showed that the foliar surface cells of these two Sabina species were covered with thick cuticular membrane, and the well-developed arenchyma appeared in the mesophyll.

[Dynamics of carbon and nitrogen storages in plant-soil system during desertification process in Horqin sandy land].

Organic carbon and nitrogen storages in plant-soil system were measured at different desertification stages (potential, light, moderate, severe, and most-severe) in Horqin sandy land. From potential desertification to light, moderate, severe, and most-severe desertification, total biomass (aboveground and belowground) carbon storages decrease by 26.4%, 51.