Low-cost, 4 × 4 pixels, pyroelectric infrared array device based on flexible composites.

The P(VDF-TrFE) and PZT composite materials have the advantages of flexibility, ease of preparation, low cost, and potential for large-scale production. In this paper, a low-cost, 4×4 pixel array-type pyroelectric infrared device based on P(VDF-TrFE)/PZT is prepared. In order to facilitate the interconnection between the sensitive element and readout circuit using the room temperature cured silver paste, the array electrodes are fanned out to the edge of the sensitive element.

Linking carbon footprint methodologies and environmental protection via sustainable product development with a moderating role of regulatory compliance.

China, at the forefront of carbon emissions and manufacturing, grapples with substantial challenges in harmonizing economic progress and environmental protection (EP). This study delves into the intricate interplay between carbon footprint methodologies (CFM), sustainable product development (SPD), EP, and the moderating role of regulatory compliance. To fulfill its objectives, the research meticulously analyzes data collected from a sample of 429 employees within the manufacturing sector, employing SmartPLS version 4.

[Characterization of Ambient Volatile Organic Compounds, Source Apportionment, and the Ozone-NO-VOC Sensitivities in Liucheng County, Guangxi].

Liucheng county, as a suburb of Liuzhou City in Guangxi province, has a prominent ozone (O) pollution problem; however, there have been no relevant analyses of the cause of local O pollution reported. In order to investigate the causes of O pollution, an online observation of 116 VOCs with a time resolution of 1 h was carried out in Liucheng county from October 1 to 15, and the sensitivity of ozone to the relative changes in the NO and VOCs was analyzed. The results showed that the average value of ［total volatile organic compounds (TVOCs)］ during the observation period was 27.

Hypoxic Preconditioning Enhances Biological Function of Endothelial Progenitor Cells via Notch-Jagged1 Signaling Pathway.

BACKGROUND Hypoxic preconditioning may be a key influence on functions of endothelial progenitor cells (EPCs). MATERIAL AND METHODS To investigate the role and mechanism of the Notch-Jagged1 pathway on endothelial progenitor cells in hypoxic preconditioning, endothelial progenitor cells were randomly allocated into 5 groups: 1 Normoxic control group; 2 Hypoxic blank group; 3 Hypoxic+25 μM DAPT group; 4 Hypoxic+50 μM DAPT group; 5 Hypoxic+100 μM DAPT group. After reoxygenation, protein and mRNA levels of Jagged1 were measured by Western blot and quantitative RT-PCR.

[Obesity and Bone Mineral Density in Menopausal Women].

Objectives: To determine the association between obesity and bone mineral density in menopausal women.

Methods: We recruited menopausal women aged 50 years and older who undertook health examinations in West China Hospital of Sichuan University in this study. Bone mineral density of the participants was measured by MetriScan Bone Densitometry.

RTEF-1 protects against oxidative damage induced by H2O2 in human umbilical vein endothelial cells through Klotho activation.

Oxidative stress is a main risk factor of vascular aging, which may lead to age-associated diseases. Related transcriptional enhancer factor-1 (RTEF-1) has been suggested to regulate many genes expression which are involved in the endothelial angiogenesis and vasodilation. However, whether RTEF-1 has a direct role in anti-oxidation and what specific genes are involved in RTEF-1-driven anti-oxidation have not been elucidated.

Management of primary gastric small cell carcinoma in China.

Background: Primary gastric small cell carcinomas (GSCCs) are increasingly identified by endoscopy, and account for 15-20% of all gastric neuroendocrine tumors (NETs). GSCCs have the worst prognosis with the highest rate of metastases.

Purpose: To provide useful information for clinicians and researchers to better manage patients with GSCC, we studied the clinical features of GSCC and explored the corresponding therapies and prognosis.

Behavior of the edible seaweed Sargassum fusiforme to copper pollution: short-term acclimation and long-term adaptation.

Aquatic agriculture in heavy-metal-polluted coastal areas faces major problems due to heavy metal transfer into aquatic organisms, leading to various unexpected changes in nutrition and primary and/or secondary metabolism. In the present study, the dual role of heavy metal copper (Cu) played in the metabolism of photosynthetic organism, the edible seaweed Sargassum fusiforme, was evaluated by characterization of biochemical and metabolic responses using both 1H NMR and GC-MS techniques under acute (47 µM, 1 day) and chronic stress (8 µM, 7 days). Consequently, photosynthesis may be seriously inhibited by acute Cu exposure, resulting in decreasing levels of carbohydrates, e.

Suppression of Ku80 correlates with radiosensitivity and telomere shortening in the U2OS telomerase-negative osteosarcoma cell line.

Ku70/80 heterodimer is a central element in the nonhomologous end joining (NHEJ) DNA repair pathway, Ku80 playing a key role in regulating the multiple functions of Ku proteins. It has been found that the Ku80 protein located at telomeres is a major contributor to radiosensitivity in some telomerase positive human cancer cells. However, in ALT human osteosarcoma cells, the precise function in radiosensitivity and telomere maintenance is still unknown.

[Effects of hypoxia on the expression of angiotensin-converting enzyme 2 in human umbilical vein endothelial cells].

Objective: To study the influence and mechanism of hypoxia on the expression of angiotensin-converting enzyme 2 (ACE2) in human umbilical vein endothelial cells (HUVECs).

Methods: HUVECs were cultured as adherent cells and identified by immunohistochemical study of Factor VIII. Then the cells were cultured in 37 degrees C incubators under hypoxia condition (1% O2 + 94% N2 + 5%C O2) or regular 5% CO2 condition for 3 h, 6 h, 12 h, 24 h, respectively, and the culture medium and cells were collected at each time point.

[AQP1 expression in vascular endothelial cells in vitro under hypoxia conditions].

Objective: To investigate the expression of AQP1 in endothelial cells under hypoxia conditions in vitro.

Methods: The cultured human umbilical vein endothelial cells were randomly assigned to hypoxia groups (exposed to 1% of O2 for 3 h, 6 h, 12 h and 24 h respectively), and control group (ordinary culture). The expressions of AQP1 mRNA and protein were detected by real time PCR and immunohistochemistry respectively.