The Issues of Chronology in Cataloging Chinese Archaeological Reports and Related Materials: An Investigation of the Cultural Bias in the Library of Congress Classification and Subject Headings

This article discusses peculiarities of Chinese chronology in cataloging Chinese archaeological reports and related materials. It first examines cultural limitations embedded in the Eurocentric Library of Congress Classification (LCC) and calls for catalogers’ sensitivity to authors’ cultural background while cataloging the Bronze China archaeological materials. It then discusses the ambiguity in Library of Congress Subject Headings (LCSH) Manual H1225 and presents a debate on the necessity of including Chinese dynastic information in constructing subject headings through the comparison of facets extracted in this manual and elements derived from title patterns of Chinese archaeological reports. Furthermore, this article elaborates the significance of the chronological issue from three different perspectives in library systems: FAST headings, local library users’ need, and next-generation catalogs. It ends with a conclusion that chronological information either in the LCSH or FAST headings will facilitate the discoverability and accessibility of such materials in a faceted library catalog to a group of targeted users

Epileptic seizures in patients with glioma: A single centrebased study in China

Purpose: To elucidate the outcomes of treatment and epidemiology of epilepsy  related to glioma in a single center in Chinese patients.Methods: Prescription medicines usage and clinical data were collected from  medical records of 119 patients with gliomas between August 2009 and September 2015. Fisher’s exact and Chi square tests were used for analysis of seizure incidence differences as per WHO Grades, histology, location as well as tumour number, age and sex.Results: Preoperative seizures were noted in 33.8 % of glioma patients. After surgery, all the patients were given antiepileptic drugs (AEDs) prophylactically. Ten patients (8.4 %) developed seizures in the initial postoperative week, and 73 (61.3 %) patients at the last follow-up period. Overall, seizure incidence was 74.2 % in WHO Grade II, 68.4 % in Grade III, and 56.6 % in Grade IV glioma patients. Good seizure control and tolerance was demonstrated by levetiracetam.  Phenytoin/carbamazepine were poorly tolerated due to adverse events. AED  discontinuation was done in 54 patients and 14 patients developed seizures within 6 months and again needed AED.Conclusion: Effective prophylaxis of seizure and acceptable adverse event profile are to be considered significantly in AEDs selection. Lower cognitive impairment risk and renal excretion associated with newer AEDs make them better than older  therapeutic agents for epilepsy control in brain tumour patients.Keywords: Brain tumour, Epilepsy, Glioma, Seizures, Levetiracetam, Phenytoin, Carbamazepine,Epidemiolog

LightSpeed: Light and Fast Neural Light Fields on Mobile Devices

Real-time novel-view image synthesis on mobile devices is prohibitive due to the limited computational power and storage. Using volumetric rendering methods, such as NeRF and its derivatives, on mobile devices is not suitable due to the high computational cost of volumetric rendering. On the other hand, recent advances in neural light field representations have shown promising real-time view synthesis results on mobile devices. Neural light field methods learn a direct mapping from a ray representation to the pixel color. The current choice of ray representation is either stratified ray sampling or Plucker coordinates, overlooking the classic light slab (two-plane) representation, the preferred representation to interpolate between light field views. In this work, we find that using the light slab representation is an efficient representation for learning a neural light field. More importantly, it is a lower-dimensional ray representation enabling us to learn the 4D ray space using feature grids which are significantly faster to train and render. Although mostly designed for frontal views, we show that the light-slab representation can be further extended to non-frontal scenes using a divide-and-conquer strategy. Our method offers superior rendering quality compared to previous light field methods and achieves a significantly improved trade-off between rendering quality and speed.Comment: Project Page: http://lightspeed-r2l.github.io/ . Add camera ready versio

Numerical simulation study on the effects of liquid water atomization on the flow field and performance of aluminum-based water ramjet engines

In order to investigate the effects of different water inlet droplet diameters on the performance of aluminum-based water ramjet engines, the internal flow field of the engine was analyzed through numerical simulation. The results showed that by selecting a suitable water droplet diameter at the water inlet and controlling the time required for water droplet evaporation and heat absorption, the working range of aluminum-water combustion reaction can be expanded and the specific impulse of the engine can be increased. In engine design and practical application, the design of the water injection nozzle upstream of the engine is critical, and the droplet diameter at the water inlet should be controlled within a suitable range. A diameter that is too large will reduce the evaporation efficiency and hinder the further diffusion of combustion reaction. Droplet sizes that are too small will rapidly evaporate, causing the temperature in the flow field to decrease rapidly, leading to a large range of low-temperature regions in the main reaction zone of the combustion chamber, thereby reducing the overall aluminum-water reaction rate of the engine. In addition, the variation of droplet diameter in the downstream water atomization nozzle has little effect on the aluminum-water reaction in the main combustion zone. However, reducing the droplet diameter can facilitate the downstream diffusion of the combustion reaction, further expanding the combustion range and increasing the specific impulse. Furthermore, it can also reduce the temperature near the wall, which is beneficial for reducing the overall thermal protection requirements of the engine

Abnormal regional signal in the left cerebellum as a potential neuroimaging biomarker of sudden sensorineural hearing loss

ObjectiveWhile prior reports have characterized visible changes in neuroimaging findings in individuals suffering from sudden sensorineural hearing loss (SSNHL), the utility of regional homogeneity (ReHo) as a means of diagnosing SSNHL has yet to be established. The present study was thus conducted to assess ReHo abnormalities in SSNHL patients and to establish whether these abnormalities offer value as a diagnostic neuroimaging biomarker of SSNHL through a support vector machine (SVM) analysis approach.MethodsResting-state functional magnetic resonance imaging (rs-fMRI) analyses of 27 SSNHL patients and 27 normal controls were conducted, with the resultant imaging data then being analyzed based on a combination of ReHo and SVM approaches.ResultsRelative to normal control individuals, patients diagnosed with SSNHL exhibited significant reductions in ReHo values in the left cerebellum, bilateral inferior temporal gyrus (ITG), left superior temporal pole (STP), right parahippocampal gyrus (PHG), left posterior cingulum cortex (PCC), and right superior frontal gyrus (SFG). SVM analyses suggested that reduced ReHo values in the left cerebellum were associated with high levels of diagnostic accuracy (96.30%, 52/54), sensitivity (92.59%, 25/27), and specificity (100.00%, 27/27) when distinguishing between SSNHL patients and control individuals.ConclusionThese data suggest that SSNHL patients exhibit abnormal resting-state neurological activity, with changes in the ReHo of the left cerebellum offering value as a diagnostic neuroimaging biomarker associated with this condition

Intracytoplasmic sperm injection (ICSI) versus conventional in vitro fertilisation (IVF) in couples with non-severe male infertility (NSMI-ICSI) : protocol for a multicentre randomised controlled trial

Funding This study was supported by National Key Research and Development Program of China (2016YFC1000201; 2018YFC1002104) and the National Science Foundation of China (81730038). The study funders had no rule in the study design, implementation, analysis, manuscript, preparation or decision to submit this article for publication.Peer reviewedPublisher PD

Preparation and Characterization of Baicalein-Loaded Nanoliposomes for Antitumor Therapy

Baicalein (BAI) is a major constituent of Scutellaria baicalensis Georgi. Previous studies showed that BAI had obvious effects on U14 cervical tumor-bearing mice model and HeLa cells. However, the use of BAI is inconvenient and troublesome, due to its low oral bioavailability. The aim of this study was to develop baicalein-loaded nanoliposomes (BAI-LP) to improve its bioavailability. In this study, BAI-LP was prepared by thin film hydration method. The average size, polydispersity index (PDI), zeta potential and encapsulation efficiency (EE) of the BAI-LP were 194.6±2.08 nm, 0.17±0.025, -30.73±0.41 mV, and 44.3±2.98%, respectively. Drug storage stability study showed no significant changes in these values after 4 weeks of storing at 4°C. Additionally, Sulforhodamine B (SRB) experimental results indicated that the BAI-LP could achieve better anti-tumor effects than free BAI. The results of the experiment demonstrated that BAI-LP had a better antitumor effect with a higher inhibition rate of 66.34±15.33% than free BAI with a inhibition rate of 41.89±10.50% by using U14 cervical tumor-bearing mice model. In conclusion, the study suggested that BAI-LP would serve as a potent delivery vehicle for BAI in future cancer therapy