Comparison of Rhizosphere Bacterial Communities of , a Plant Species with Extremely Small Populations (PSESP) in Different Conservation Sites.

is one of the most threatened conifer species in the world. It is endemic to northeastern Yunnan Province, China, and has been prioritized as a Plant Species with Extremely Small Populations (PSESP). The integrated study of soil properties and rhizosphere bacteria can assist conservation to understand the required conditions for the protection and survival of rare and endangered species.

Reconstructing Hydrogen Bond Network Enables High Voltage Aqueous Zinc-Ion Supercapacitors.

High-voltage aqueous rechargeable energy storage devices with safety and high specific energy are hopeful candidates for the future energy storage system. However, the electrochemical stability window of aqueous electrolytes is a great challenge. Herein, inspired by density functional theory (DFT), polyethylene glycol (PEG) can interact strongly with water molecules, effectively reconstructing the hydrogen bond network.

Flexible solar cells based on foldable silicon wafers with blunted edges.

Flexible solar cells have a lot of market potential for application in photovoltaics integrated into buildings and wearable electronics because they are lightweight, shockproof and self-powered. Silicon solar cells have been successfully used in large power plants. However, despite the efforts made for more than 50 years, there has been no notable progress in the development of flexible silicon solar cells because of their rigidity.

Ultrasound examination of the normal fetal duodenum.

Objective: To use the fetal pylorus as a reference point to conveniently display the normal fetal duodenum by ultrasound.

Methods: This study was designed in cross-section. A total of 450 healthy singleton pregnant women at 19-39 weeks of gestation who underwent prenatal screening at our hospital from January 2019 to February 2020 were selected.

Effects of Physical Activity Level on Attentional Networks in Young Adults.

Although physical activity is associated with better attentional functioning in elderly populations or in specific clinical populations, the association between physical activity level and attention has been less studied in young adult populations. Thus, the purpose of this study was to investigate whether the positive effects of physical activity on attentional networks extend to young adults. In total, 57 college students were recruited and assigned to one of three groups of physical activity levels (high, moderate, and low) based on their self-reported exercise.

Coupling regeneration strategy of lithium-ion electrode materials turned with naphthalenedisulfonic acid.

The resource exhaustion and environmental assessment driven by sustainable development make recycle of spent LIBs urgent to be achieved. However, the conventional recycling processes are quite complicated in terms of the tedious steps and secondary contamination. In this paper, hydrosoluble naphthalenedisulfonic acid is firstly proposed to selectively extract valuable metals (Co and Li) for the regeneration of battery materials.

Clinical characterization and the improved molecular diagnosis of autosomal dominant cone-rod dystrophy in patients with SCA7.

Purpose: To evaluate the retinal phenotype and genetic features of Chinese patients with spinocerebellar ataxia type 7 (SCA7).

Methods: Detailed ophthalmic examinations, including electroretinograms, fundus photography, fundus autofluorescence and optical coherence tomography, were performed to analyse the retinal lesions of patients with SCA7. A molecular genetic analysis was completed to confirm the number of CAG repeats in gene on the patients and their family members.

Causes of Visual Impairment and Blindness in the 2006 and 2014 Nine-Province Surveys in Rural China.

Purpose: To investigate the primary causes of visual impairment and blindness in rural China.

Design: Population-based, cross-sectional study.

Methods: Geographic cluster sampling was used in randomly selecting residents from a rural county/district within 9 provinces in the East Coast, Inland Middle, and West regions of mainland China.

Cataract Surgical Coverage and Visual Acuity Outcomes in Rural China in 2014 and Comparisons With the 2006 China Nine-Province Survey.

Purpose: To estimate surgical coverage of cataract-related vision impairment and blindness and visual acuity outcomes in operated eyes in rural China in 2014 with comparisons with the 2006 Nine-Province Survey.

Design: Population-based, cross-sectional study.

Methods: Geographical cluster sampling was used in randomly selecting residents from a rural county or semi-rural district within 9 provinces: Beijing, Jiangsu, Guangdong, Heilongjiang, Jiangxi, Hebei, Ningxia, Chongqing, and Yunnan.

Vehicle Classification Using an Imbalanced Dataset Based on a Single Magnetic Sensor.

This paper aims to improve the accuracy of automatic vehicle classifiers for imbalanced datasets. Classification is made through utilizing a single anisotropic magnetoresistive sensor, with the models of vehicles involved being classified into hatchbacks, sedans, buses, and multi-purpose vehicles (MPVs). Using time domain and frequency domain features in combination with three common classification algorithms in pattern recognition, we develop a novel feature extraction method for vehicle classification.

Prevalence of Vision Impairment in Older Adults in Rural China in 2014 and Comparisons With the 2006 China Nine-Province Survey.

Purpose: To estimate the prevalence of vision impairment and blindness in 2014 among older adults in rural China with comparisons with the 2006 Nine-Province Survey.

Design: Population-based, cross-sectional study.

Methods: Geographical cluster sampling was used in randomly selecting residents from a rural county or semi-rural district within 9 provinces: Beijing, Jiangsu, Guangdong, Heilongjiang, Jiangxi, Hebei, Ningxia, Chongqing, and Yunnan.

Synthesis and biological evaluation of 3-phenyl-3-aryl carboxamido propanoic acid derivatives as small molecule inhibitors of retinoic acid 4-hydroxylase (CYP26A1).

All-trans-retinoic acid (ATRA), the biologically active metabolite of vitamin A, is used medicinally for the treatment of hyperproliferative diseases and cancers. However, it is easily metabolized. In this study, the leading compound S8 was found based on virtual screening.

Roles of Rho guanine nucleotide triphosphatases in hippocampal mossy fiber sprouting in the pentylenetetrazole kindling model.

Background: One unique feature of chronic human and experimental epilepsy is hippocampal dentate granule cell axon (mossy fiber) sprouting which creates an aberrant positive-feedback circuit that may be epileptogenic. However, the mechanism underlying this process remains unclear. Rho guanine nucleotide triphosphatases (RhoGTP ases) Rac1 and RhoA are important regulators of axon growth and synaptic plasticity and can be blocked by treatment with fasudil.

2-(2-Methylfuran-3-carboxamido)-3-phenylpropanoic acid, a potential CYP26A1 inhibitor to enhance all-trans retinoic acid-induced leukemia cell differentiation based on virtual screening and biological evaluation.

To develop new CYP26A1 inhibitors, a three-cycle virtual screening was carried out based on the constructed homology model of human CYP26A1 using Dock, Fred, Gold and AutoDock. Twenty-two compounds exhibited high scores and reasonable binding modes in molecular docking were purchased from Specs Company. Eighteen compounds were tested their abilities to enhance ATRA-induced differentiation in human acute promyelocytic leukemia NB4 cells.

Study of cochlear hydrops analysis masking procedure in patients with Meniere's disease and otologically normal adults.

Background: The cochlear hydrops analysis masking procedure (CHAMP) is a new diagnostic technique for Meniere's disease (MD). But its value has not been well proven. This study aimed to evaluate the diagnostic value of CHAMP for MD.

[Prevalence and surgery status of cataract among adults aged 50 years or above in the Shunyi district of Beijing: the China Nine-Province Survey].

Objective: To assess the prevalence of cataract, the outcomes of cataract surgery, the rate of cataract surgical coverage, and the rate of cataract blindness social burden.

Methods: Cluster sampling was used in 5118 randomly selected individuals aged > or = 50 years in the Shunyi district of Beijing from April to August 2006. All individuals were received visual acuity and eye examination, including the evaluation of lens status and cataract surgical status by slit lamp biomicroscopy.

[Prevalence of blindness and moderate and severe visual impairment among adults aged 50 years or above in the Shunyi District of Beijing: the China Nine-Province Survey].

Unlabelled: OBJECTIVE To assess the prevalence of blindness and moderate and severe visual impairment among adults aged 50 years or above in the Shunyi district of Beijing,China.

Methods: It was a population-based cross-section study. Geographically defined cluster sampling was used in 5840 randomly selected individuals aged > or = 50 years in 28 clusters in the Shunyi district from April to August 2006.

[Study of characteristic of the cochlear hydrops analysis masking procedure in normal adults].

Objective: To study the characteristic of the cochlear hydrops analysis masking procedure (CHAMP) in normal adults, and to evaluate the diagnostic values of its parameters for membranous labyrinth hydrops.

Methods: Twenty otologically normal adults were recruited (male:female = 10:10), and their auditory brainstem responses (ABR) were obtained to six stimulus conditions using Bio-logic auditory evoked potential system: clicks presented alone (unmasked condition) and clicks presented with ipsilateral pink noise high-pass filtered at 8, 4, 2, 1, and 0.5 kHz respectively.

[Cochlear implantation with pericanal electrode insertion technique].

Objective: To investigate the surgical technique of the pericanal electrode insertion technique for ies cochlear implantation.

Method: Forty cases of sensorineural deafness were subjected to the ies cochlear implants. Cochleostomy was performed through the external auditory canal with a microdrill anterior to the round window.

[Comparison of tone burst evoked auditory brainstem responses with different filter settings for referral infants after hearing screening].

Objective: Auditory brainstem responses (ABR) evoked by tone burst is an important method of hearing assessment in referral infants after hearing screening. The present study was to compare the thresholds of tone burst ABR with filter settings of 30 - 1500 Hz and 30 - 3000 Hz at each frequency, figure out the characteristics of ABR thresholds with the two filter settings and the effect of the waveform judgement, so as to select a more optimal frequency specific ABR test parameter.

Methods: Thresholds with filter settings of 30 - 1500 Hz and 30 - 3000 Hz in children aged 2 - 33 months were recorded by click, tone burst ABR.

Potential roles of Cdk5/p35 and tau protein in hippocampal mossy fiber sprouting in the PTZ kindling model.

Background: The most well-documented synaptic reorganization associated with temporal lobe epilepsy is mossy fiber sprouting (MFS), which is believed to play a critical role in epileptogenesis. However, the molecular mechanisms underlying this phenomenon remain unclear. Cyclin-dependent kinase 5 (Cdk5) is a proline-directed serine/threonine kinase which is found to be crucial in axon growth and synaptic plasticity.

Mossy fiber sprouting, hippocampal damage and spontaneous recurrent seizures in pentylenetetrazole kindling rat model.

Aim: The aim of this study was to determine the correlations among hippocampal damage, spontaneous recurrent seizures (SRS), and mossy fiber sprouting (MFS) using pentylenetetrazole (PTZ) kindling model.

Methods: Chronic epileptic model was established by administration of PTZ. Behaviour and EEG seizure activity were recorded.

[Analysis of abnormality of the middle ear in infant and young children].

Objective: To discuss the diagnosis of middle ear abnormality in infants and young children.

Methods: To analyze retrospectively the data of audiology (including ABR, tympanometry) and CT scanning in 31 infants and young children who presented middle ear abnormality.

Results: Wave I latencies of ABR were delayed in 38 of 62 ears and not delayed in 15 ears, but CT scanning showed high density in 6 ears of these 15 ears.

9-(2-Thien-yl)-9H-carbazole.

In the title compound, C(16)H(11)NS, the dihedral angles between the fused ring system and the pendant thienyl ring are 86.37 (5) and 57.14 (5)°.