Association between snoring and in vitro fertilization outcomes among infertile women.

Objective: To explore the association between snoring and in vitro fertilization (IVF) outcomes in infertile women, focusing on embryological parameters and pregnancy outcomes.

Methods: This study represents a secondary analysis of the PKU-ERC study (NCT05373290). We included a cohort of 632 infertile women, aged 24-45 years, undergoing their first IVF treatment from the Reproductive Center of Peking University People's Hospital between January 2018 and November 2021.

CO Plasma Treatment To Prepare the Rear Emitter with a Boron-Doped Hydrogenated Amorphous/Nanocrystalline Silicon Stack for a High-Efficiency Silicon Heterojunction Solar Cell.

A rear emitter with a p-type boron-doped hydrogenated amorphous silicon/nanocrystalline silicon [a-Si:H(p)/nc-Si:H(p)] stack was prepared for the silicon heterojunction (SHJ) solar cell to improve its short-circuit current density (). CO plasma treatment (CO PT) was applied to a-Si:H(p) to facilitate the crystallization of the subsequently deposited nc-Si:H(p). To evaluate the effect of the CO PT, two different nc-Si:H(p) layers with low and high crystallinity (χ) were investigated.

Dipropyl phthalate induces craniofacial chondrogenic defects in zebrafish embryos.

Dipropyl phthalate (DPRP), a plasticizer commonly utilized in the plastics industry, has been identified in food and the environment and has the potential to present a hazard to human health and the environment. In this study, the first comprehensive evaluation of DPRP-induced craniofacial chondrogenic defects was conducted using a zebrafish model. Zebrafish embryos were exposed to 1, 2, and 4 mg/L DPRP from 6 to 96 h post-fertilization.

Benzalkonium chloride induces hematopoietic stem cell reduction and immunotoxicity in zebrafish larvae.

Benzalkonium chloride (BAC) is a broad-spectrum antibacterial agent that possesses cleaning and bactericidal properties, but impact of BAC on wellbeing of aquatic organisms remains uncertain. Consequently, in this current study, we have examined the immunotoxic potential of BAC in zebrafish embryos, thus marking it as the pioneering effort in this field. According to the findings, zebrafish embryos exposed to BAC exhibited a decline in yolk area that varied with the concentration, along with a significant decrease in the count of neutrophils, macrophages, red blood cells, and thymus T-cells.

A Systematical Study on Bands and Defects of CsBX (B = Pb, Sn, Ge, X = Cl, Br, I) Perovskite Based on First Principles.

Metal halide perovskites have attracted considerable attention as novel optoelectronic materials for their excellent optical and electrical properties. Inorganic perovskites (CsPbX, X = Cl, Br, I) are now viable alternative candidates for third-generation photovoltaic technology because of their high photoelectric conversion efficiency, high carrier mobility, good defect tolerance, simple preparation method and many other advantages. However, the toxicity of lead is problematic for practical implementation.

Pinoresinol diglucoside mitigates dexamethasone-induced osteoporosis and chondrodysplasia in zebrafish.

Background: The global increase in the aging population has led to a higher incidence of osteoporosis among the elderly.

Objective: This study aimed to evaluate the protective properties of pinoresinol diglucoside (PDG), an active constituent of Eucommia ulmoides, against dexamethasone-induced osteoporosis and chondrodysplasia.

Methods: A zebrafish model of osteoporosis was established by exposing larval zebrafish to dexamethasone.

Lateral GeSn p-i-n photodetectors on insulator prepared by the rapid melting growth method.

In this work, GeSn lateral p-i-n photodetectors (PDs) on insulator were fabricated with an active GeSn layer grown by the rapid melting growth (RMG) method. Taking advantages of the defect-free GeSn strips, GeSn PDs with 5.3 Sn content have low dark current and high responsivities, which are about 0.

Sn component gradient GeSn photodetector with 3 dB bandwidth over 50 GHz for extending L band telecommunication.

In this work, high-performance GeSn photodetectors with a Sn content gradient GeSn layer were fabricated on SOI substrate by CMOS-compatible process for C and L band telecommunication. The active GeSn layer has a Sn component increased from 9 to 10.7% with the controlled relaxation degree up to 84%.

Benzophenone induces cardiac developmental toxicity in zebrafish embryos by upregulating Wnt signaling.

Benzophenone (BP) is found in many popular consumer products, such as cosmetics. BP potential toxicity to humans and aquatic organisms has emerged as an increased concern. In current study, we utilized a zebrafish model to assess BP-induced developmental cardiotoxicity.

Cysteamine hydrochloride affects ocular development and triggers associated inflammation in zebrafish.

The increasing use of cosmetics has raised widespread concerns regarding their ingredients. Cysteamine hydrochloride (CSH) is a newly identified allergenic component in cosmetics, and therefore its potential toxicity needs further elucidation. Here, we investigated the in vivo toxicity of CSH during ocular development utilizing a zebrafish model.

Hepatic lipid metabolism disorders and immunotoxicity induced by cysteamine in early developmental stages of zebrafish.

Cysteamine, a sulfhydryl compound, is an intermediate in the metabolism of coenzyme A to taurine in living organisms. However, the potential side effects of cysteamine such as hepatotoxicity in pediatric patients have been reported in some studies. To evaluate the impact of cysteamine on infants and children, larval zebrafish (a vertebrate model) were exposed to 0.

Hexafluoropropylene oxide trimer acid (HFPO-TA) disturbs embryonic liver and biliary system development in zebrafish.

Hexafluoropropylene oxide trimer acid (HFPO-TA), a novel alternative to perfluorooctanoic acid (PFOA), has emerged as a potential environmental pollutant. Here, to investigate the toxic effects of HFPO-TA on liver and biliary system development, zebrafish embryos were exposed to 0, 50, 100, or 200 mg/L HFPO-TA from 6 to 120 h post-fertilization (hpf). Results showed that the 50 % lethal concentration (LC) of HFPO-TA was 231 mg/L at 120 hpf, lower than that of PFOA.

Modeling, analysis, and demonstration of a carrier-injection electro-absorption modulator at 2 µm on Ge-on-Si platform.

In this paper, a carrier-injection electro-absorption modulator (EAM) at 2 µm is demonstrated on Ge-on-Si platform. The EAM shows a compact size and high modulation efficiency due to the strong free-carrier electroabsorption (FCEA) effect in Ge. A modulation depth of 40 dB can be obtained under the injection current of only 420 mA.

High-performance waveguide-coupled lateral Ge/Si avalanche photodetector.

A high-performance waveguide-coupled lateral avalanche photodetector (APD) is experimentally demonstrated without silicon epitaxy and charge layer ion implantation. At the wavelength of 1550 nm, it shows a high responsivity of 48 A/W and a gain-bandwidth product (GBP) of 360 GHz. Wide-open eye diagrams at 25 Gbps can be observed at various avalanche gains.

GeSn resonance cavity enhanced photodetector with gold bottom reflector for the L band optical communication.

In this work, GeSn resonant cavity enhanced (RCE) p-i-n photodetectors (PDs) with 3.7% Sn content in a GeSn layer were fabricated on a silicon on insulator (SOI) substrate. The gold (Au) layer and the deposited SiO layer constitute the bottom reflector and top reflector of the RCE detectors, respectively.

High-speed and high-power germanium photodetector based on a trapezoidal absorber.

A compact high-power germanium photodetector (Ge PD) is experimentally demonstrated by re-engineering light distribution in the absorber. Compared with a conventional Ge PD, the proposed structure shows a DC saturation photocurrent improved by 28.9% and 3 dB bandwidth as high as 49.

The month of birth has a seasonal effect in Chinese patients with narcolepsy and cataplexy.

Study Objectives: We assessed the yearly seasonal, environmental effects on birth pattern in Chinese patients later diagnosed with narcolepsy and cataplexy and explored if this effect persisted in patients with symptoms onset date before, following, and after the 2009 H1N1 pandemic.

Methods: A total of 1,942 patients with birth data information and diagnosed narcolepsy with cataplexy were included in this study. The birth month and seasonal effect of 1,064 patients born from 1970 to 2000 were compared to controls (n = 2,028,714) from the general population.

Reliability and validity of the Chinese version of Narcolepsy Severity Scale in adult patients with narcolepsy type 1.

Objective: To evaluate reliability and validity of the Chinese version of Narcolepsy Severity Scale (NSS) in adult patients with narcolepsy type 1 (NT1).

Methods: One hundred and fifty-one adult patients (≥18 years) with NT1 were recruited. All filled out the 15-item Chinese version of NSS.

A facile method for preparing Yb-doped perovskite nanocrystals with ultra-stable near-infrared light emission.

Colloidal all-inorganic cesium lead halide (CsPbX, X = Cl, Br, I) nanocrystals (NCs) are very important optoelectronic materials and have been successfully utilized as bright light sources and high efficiency photovoltaics due to their facile solution processability. Recently, rare-earth dopants have opened a new pathway for lead halide perovskite NCs for applications in near-infrared wave bands. However, these materials still suffer from serious environmental instability.

Spontaneously Conversion from Film to High Crystalline Quality Stripe during Molecular Beam Epitaxy for High Sn Content GeSn.

Two series of GeSn samples were grown on Ge buffered Si substrate by molecular beam epitaxy (MBE) to investigate the influence of growth temperature and film thickness towards the evolution of surface morphology. A novel phenomena was observed that the GeSn film was segregated and relaxed by the formation of GeSn stripes on the film. Under specific growth condition, the stripes can cover nearly the whole surface.

High-power back-to-back dual-absorption germanium photodetector.

A high-power germanium photodetector is designed and fabricated using a cold-wall ultrahigh vacuum chemical vapor deposition. A back-to-back dual-absorption structure improves high-power characteristics by reducing the space-charge effect. Compared to a typical p-i-n photodetector, the saturated photocurrent of the back-to-back dual-absorption photodetector is improved from 16.

Study of GePb photodetectors for shortwave infrared detection.

GePb photodetectors (PDs) with a GePb layer grown on n-type Ge (100) substrate by magnetron sputtering epitaxy were fabricated by complementary metal-oxide semiconductor (CMOS)-compatible technology. For GePb PDs, the room-temperature dark current density at -1 V was 3.3 A/cm.

Enhanced Efficiency of Carbon-Based Mesoscopic Perovskite Solar Cells through a Tungsten Oxide Nanoparticle Additive in the Carbon Electrode.

This paper presents perovskite solar cells employed with WO nanoparticles embedded carbon top electrode. WO nanoparticles works as an inorganic hole-transport material (HTM) to promote the hole-extraction in the perovskite/carbon interface as revealed by efficiency, electrochemical impedance and external quantum efficiency measurements. As a result, a 40% enhancement of energy conversion efficiency has been achieved compared to the reference devices with the energy conversion efficiency of 10.