Magnetic liquid metal droplets, featured by unique fluidity, metallic conductivity, and magnetic reactivity, are of growing significance for next-generation flexible electronics. Conventional fabrication routes, which typically incorporate magnetic nanoparticles into liquid metals, otherwise encounter the pitfall pertaining to surface adhesivity and corrosivity over device modules. Here, an innovative approach of synergizing liquid metals with 2D magnetic materials is presented, accordingly creating chromium(III)-telluride-coated liquid metal (CT-LM) droplets via a simple self-assembly process.
View Article and Find Full Text PDFPurpose: The neuronal ceroid lipofuscinoses (NCLs) comprise a group of inherited neurodegenerative disorders with thirteen NCL-disease causing genes ceroid lipofuscinosis neuronal ( identified. The purpose of this study was to describe the genetic and clinical characteristics of a cohort of Chinese patients harboring biallelic variants in the genes.
Methods: We recruited 14 patients from 13 unrelated families who carried biallelic variants in the genes.
The compound eyes are crucial to honeybees, playing pivotal roles in color recognition, orientation, localization, and navigation processes. The development of compound eyes is primarily mastered by an evolutionarily conserved transcription factor Pax6. In honeybees, there are two Pax6 homologs: ey and toy.
View Article and Find Full Text PDFHoney bees are typical model organisms for the study of caste differentiation, and the juvenile hormone (JH) is a crucial link in the regulatory network of caste differentiation in honey bees. To investigate the mechanism of JH-mediated caste differentiation, we analyzed the effect of the JH response gene on this process. We observed that expression levels were significantly higher in queen larvae than in worker larvae at the 48 h, 84 h, and 120 h larval stages, and were regulated by JH.
View Article and Find Full Text PDFFront Cell Dev Biol
April 2023
Maternal effects are an evolutionary strategy used to improve offspring quality. In an example of maternal effects in honey bees (), mother queens produce larger eggs in queen cells than in worker cells in order to breed better daughter queens. In our current study, morphological indexes, reproductive tissues, and the egg-laying ability of newly reared queens reared with eggs laid in queen cells (QE), eggs laid in worker cells (WE), and 2-day-old larvae in worker cells (2L) were evaluated.
View Article and Find Full Text PDFThe purpose of this study was to detect the missing heritability of patients with -related retinopathy and to describe their clinical and genetic characteristics. We enrolled 10 individuals from 7 unrelated families harboring a pathogenic monoallelic variant in . All subjects underwent ophthalmic assessment and extraocular phenotype evaluations, as well as comprehensive molecular genetic analyses using next-generation sequencing.
View Article and Find Full Text PDFFlexible strain sensors have significant progress in the fields of human-computer interaction, medical monitoring, and handwriting recognition, but they also face many challenges such as the capture of weak signals, comprehensive acquisition of the information, and accurate recognition. Flexible strain sensors can sense externally applied deformations, accurately measure human motion and physiological signals, and record signal characteristics of handwritten text. Herein, we prepare a sandwich-structured flexible strain sensor based on an MXene/polypyrrole/hydroxyethyl cellulose (MXene/PPy/HEC) conductive material and a PDMS flexible substrate.
View Article and Find Full Text PDFFlexible pressure sensors with excellent performance have broad application potential in wearable devices, motion monitoring, and human-computer interaction. In this paper, a flexible pressure sensor with a porous structure is proposed by coating molybdenum disulfide (MoS) and hydroxyethyl cellulose (HEC) on a polyurethane (PU) sponge skeleton. The obtained sensor has excellent sensitivity (0.
View Article and Find Full Text PDFSeveral pyrethroids (such as flumethrin and fluvalinate) with low toxicity to honey bees and comparable high toxicity to mites are used worldwide as acaricides. However, flumethrin has been used for a long time in colonies to control Varroa destructor and the honey bees might be exposed to flumethrin cumulatively, which could affect the health of honey bee colonies. This study evaluated the potential adverse effects of direct flumethrin exposure on worker bees under laboratory and colony conditions.
View Article and Find Full Text PDFThe insecticidal crystalline proteins (Crys) are a family of insect endotoxin functioning in crop protection. As insects keep evolving into tolerance to the existing Crys, it is necessary to discover new Cry proteins to overcome potential threatens. Crys possess three functional domains at their N-termini, and the most active region throughout evolution was found at the domain-III.
View Article and Find Full Text PDFIn this work, the guar gum (GG) and the electrospinned ethyl cellulose-polyvinyl pyrrolidone (EC-PVP) nanofibers were used as humidity-sensitive materials for fabricating a quartz crystal microbalance (QCM) sensor. Fourier transform infrared spectroscopy, scanning electron microscopy, water contact angle test, and X-ray photoelectron spectra were used to characterize the synthesized GG/EC-PVP composite material, confirming its successful preparation and good hydrophilicity. The humidity sensitivity experiments were performed at room temperature.
View Article and Find Full Text PDFHoney bees, rather than rear queens with eggs and larvae from worker cells, prefer to rear new queens with eggs form queen cells, if available. This may be a result of long-term evolutionary process for honey bee colonies. However, the exact mechanism of this phenomenon is unclear.
View Article and Find Full Text PDFMites are considered the worst enemy of honey bees, resulting in economic losses in agricultural production. In apiculture, flumethrin is frequently used to control mites. It causes residues of flumethrin in colonies which may threaten honey bees, especially for larvae.
View Article and Find Full Text PDFis one of the main honeybee species in artificial farming, which is widely distributed in Asian countries. The genome of has been sequenced by several different research groups using second generation sequencing technologies. However, it is still necessary to obtain more complete and accurate genome sequences.
View Article and Find Full Text PDFHuman metapneumovirus (HMPV) is a leading cause of lower respiratory tract infection (LRTI) in pediatric and geriatric populations. We recently found that two PDZ-binding motifs of the M2-2 protein, 29-DEMI-32 and 39-KEALSDGI-46, play a significant role in mediating HMPV immune evasion in airway epithelial cells (AECs). However, their role in the overall pulmonary responses to HMPV infection has not been investigated.
View Article and Find Full Text PDFBackground: This study evaluates the macular function changes in patients with idiopathic macular epiretinal membrane (ERM) by multifocal electroretinography (mfERG) and their correlations with visual acuity and central macular thickness (CMT) by optical coherence tomography (OCT).
Methods: Twenty eyes of 20 patients with ERM underwent OCT and mfERG examinations. The response amplitude densities and implicit times of mfERG were compared to the control fellow eyes.
Purpose: To evaluate the fundus autofluorescence (FAF) findings in eyes with acute zonal occult outer retinopathy (AZOOR) and the relationships between the FAF, spectral-domain optical coherence tomography (SD-OCT), and Humphrey visual field (HVF) findings.
Methods: We performed a retrospective review of the clinical features and FAF, SD-OCT, and HVF findings of 23 eyes of 22 consecutive patients with AZOOR. The mean deviation (MD) values of HVF were compared between areas of normal and abnormal FAF.
J Comp Physiol A Neuroethol Sens Neural Behav Physiol
November 2015
Studies of olfactory learning in honeybees have helped to elucidate the neurobiological basis of learning and memory. In this study, protein expression changes following olfactory learning in Apis cerana were investigated using isobaric tags for relative and absolute quantification (iTRAQ) technology. A total of 2406 proteins were identified from the trained and untrained groups.
View Article and Find Full Text PDFBackground: Apis mellifera and Apis cerana are two sibling species of Apidae. Apis cerana is adept at collecting sporadic nectar in mountain and forest region and exhibits stiffer hardiness and acarid resistance as a result of natural selection, whereas Apis mellifera has the advantage of producing royal jelly. To identify differentially expressed genes (DEGs) that affect the development of hypopharyngeal gland (HG) and/or the secretion of royal jelly between these two honeybee species, we performed a digital gene expression (DGE) analysis of the HGs of these two species at three developmental stages (newly emerged worker, nurse and forager).
View Article and Find Full Text PDFJ Comp Physiol A Neuroethol Sens Neural Behav Physiol
October 2014
The power of the small honeybee brain carrying out behavioral and cognitive tasks has been shown repeatedly to be highly impressive. The present study investigates, for the first time, the cross-modal interaction between visual and olfactory learning in Apis cerana. To explore the role and molecular mechanisms of cross-modal learning in A.
View Article and Find Full Text PDFZhonghua Yan Ke Za Zhi
June 2013
Objective: To analyze the clinical features of acute zonal occult outer retinopathy (AZOOR) and the reasons for misdiagnosing as optic neuropathy or intracranial lesions.
Methods: Case series study. Twenty patients (23 eyes) who were all initially diagnosed as optic neuropathy or intracranial lesions were recruited in the ophthalmologic department of Beijing Tongren Hospital from November 2003 to June 2012, but they were ultimately diagnosed as AZOOR after the examinations including regular eye examination, fundus fluorescein angiography (FFA), optical coherence tomography (OCT), automatic perimetry, flash electroretinogram (F-ERG),multifocal electroretinogram (mfERG),systemic rheumatism immunological examination and neuroimaging.