The development and application of pediatric complicated appendicitis prediction model.

Background: Acute appendicitis in children refers to the acute inflammation of the appendix, which accounts for 20% ∼ 30% of cases of acute abdomen in pediatric surgery.

Objective: This study aimed to establish a decision tree model of complicated appendicitis in children using appendiceal ultrasound combined with an inflammatory index and evaluated its clinical efficacy in pediatric patients.

Methods: A total of 395 children admitted to the Emergency Department of the Shanghai Children's Hospital from January 2018 to December 2021 and diagnosed with appendicitis by postoperative pathology were retrospectively analyzed.

[Ginsenoside Rg_3 based liposomes target delivery of dihydroartemisinin and paclitaxel for treatment of triple-negative breast cancer].

Ginsenoside Rg_3, an active component of traditional Chinese medicine(TCM), was used as the substitute for cholesterol as the membrane material to prepare the ginsenoside Rg_3-based liposomes loaded with dihydroartemisinin and paclitaxel. The effect of the prepared drug-loading liposomes on triple-negative breast cancer in vitro was evaluated. Liposomes were prepared with the thin film hydration method, and the preparation process was optimized by single factor experiments.

Phase transition and ionic conduction enhancement induced by co-doping of LiI and MnI in a one-dimensional lead iodide perovskite.

Herein, we demonstrated the unique advantage of a mechanochemical reaction to prepare a salt with hard and soft acid and base ions concurrently by solution synthesis owing to the soft acid preferring to combine with the soft base and . We prepared BuNLiMnPbI ( = 0.011-0.

Mechanisms underlying operational energy consumption of buildings for low carbon city construction: A review.

With rapid urbanization, the increasing building stock, building operation energy consumption and the corresponding carbon emissions have become the important factors restricting the sustainable development of cities. To reduce energy consuming, it is necessary to explore the mechanisms underlying building's operational energy consumption and carbon emission. Although previous studies have analyzed the influencing factors and driving mechanism of urban building carbon emission from different perspectives, a systematical review of the relevant studies which could provide comprehensive guidance for building energy conservation and consumption reduction is fairly scarce.

[Clinical analysis and countermeasures of 739 cases treated in the emergency department of stomatology in general hospital during COVID-19 epidemic].

Purpose: In this paper, based on the age, sex, disease type, and consultation time of dental emergency during COVID-19 epidemic, a comprehensive analysis of dental emergency management and prevention and control of COVID-19 was conducted.

Methods: A total of 739 emergency dental cases were collected from January 29 2020 to February 28 2020. They were divided into 3 groups，including adolescents (≤18 years), young adults (18 ~ 60 years), and elderly ( ≥60 years old).

Uniaxial thermal expansion behaviors and ionic conduction in a layered (NH)VO.

The zero/negative thermal expansion (ZTE/NTE), which is an intriguing physical property of solids, has been observed in a few families of materials. ZTE materials possess practical applications in specific circumstances such as space-related applications, engineering structures and precision instrument. Generally, NTE materials are used as additives to form a composite of the ZTE material with positive thermal expansion material.

A CsCl-type inorganic cluster-based high-symmetry crystal built from {MoVPO} with a high ratio of vanadium to molybdenum and {(HO)@K(HO)} clusters exhibiting proton conduction below the freezing point of water.

As a class of anionic oxoclusters of early transition metals in their highest oxidation states, polyoxometalates (POMs) show considerable structural versatility and unique chemical and physical properties, making them promising multifunctional materials. In this study, a Keggin-type POM has been achieved, with a formula of [(H2O)0.3@K6(H2O)12]H4.

[Application and effect of enhanced recovery after surgery in early rehabilitation of oral cancer patients after operation].

Purpose: To explore the application and effect of enhanced recovery after surgery (ERAS) in early rehabilitation of oral cancer patients after operation.

Methods: Ninety cases of oral cancer admitted from January 2016 to December 2017 were randomly divided into two groups. 45 cases of oral cancer in the experimental group received ERAS nursing after operation, and another 45 patients received routine nursing after operation.

[Comparition of ecological security stress effects of artificial landscapes on natural landscapes in different rapid urban sprawl areas].

The expansion of built-up area will cause stress effect on the regional natural ecological security pattern during urbanization process. Taking rapid expanding regions of four inland and coastal cities as study areas, including Tongzhou in Beijing, Zhengding in Hebei, Tanggu in Tianjin and Xiamen in Fujian, we constructed regional landscape stress indexes according to the principle of landscape ecology and comparatively analyzed the landscape pattern characteristics of rapid expanding regions and the differences of stress effect of artificial landscapes on four natural landscapes ecological security pattern in the process of rapid urbanization. Results showed that landscape erosion indexes of Tongzhou, Zhengding, Tanggu and Xiamen in 2015 were 1.

[Treatment of 48 cases of benign lower posterior tumor of the parotid gland with C-shaped small incision].

Purpose: To summarize the feasibility and advantages of C-shaped small incision for the treatment of benign lower posterior tumor of the parotid gland.

Methods: Forty-eight cases of benign lower posterior tumor of the parotid gland were treated with C-shaped small incision. The treatment outcomes were recorded and analyzed.

The Significance of Crochetage on the R wave of an Electrocardiogram for the Early Diagnosis of Pediatric Secundum Atrial Septal Defect.

The purpose of this study was to test the hypothesis that the incidence of crochetage on the R wave in inferior limb leads can be used for the diagnosis of pediatric secundum atrial septal defect (ASD). Two hundred fifty-six children with secundum ASD (case cohort) and 256 age- and gender-matched children without heart disease (control cohort) were included in the study. Statistical analyses were performed to test the relationship between the ASD and the crochetage on the R wave with a single lead and three leads, respectively.

[Effects of silicon on exchange characteristics of H2O and CO2 in ginger leaves].

With solution culture, this paper studied the effects of silicon (Si) on the plant growth, Si content, photosynthetic rate, and transpiration rate of ginger (Zingiber officinale Rosc. ) cultivar, Laiwu big ginger. The results indicated that the biomass per plant and the leaf Si content were increased dramatically with increasing Si level in culture solution.