bluuebunny/crossref_metadata_2025_split huggingface dataset:
Indoor Positioning and Posture Recognition of Human Body Applying Integrating‐Type Intelligent Metasurfaces Based Sensing System
Authors: Liu Guo Dong , Hu Wang Sheng , Hou Wen Ying , Huang Sheng Jie , Cao Du Ming , Wang Hai Peng , Zhou Yu Xuan , He Fei , Li Yun Bo 
Published: September 2023

AbstractThe electromagnetic (EM) detection and sensing research of human signs are becoming much more attractive, especially with the rise of intelligent metasurface which can strongly enhance the control abilities and functionalities of transmitting and receiving EM fields. It proposes the design of integrating‐type intelligent metasurface to realize the indoor positioning and posture recognition of the human body using the support vector machine algorithm and a new deep learning algorithm model it proposed called MetaNet. The integrating‐type metasurface with the in‐plane feed rather than horn excitation is real low profile, and the varactor based programmable phase shifters achieving 360‐degree cover and continuous control of phase are independently embedded in each unit cell for further synthesized manipulation of apertures. One pair of integrating‐type intelligent metasurfaces are fabricated for transmitting and receiving EM fields, respectively. Also, the corresponding prototype of radar transceiver system is developed and manufactured to rapidly acquire massive data. The total experimental flow can include two main steps that first, the transmitting and receiving beams of metasurfaces should scan dynamically and synchronously under the method of far‐field synthesis for detecting the direction of the human. Second, the transmitting beam should keep the detected direction and the receiving apertures of metasurface should be varied by randomly control the phase shift of each unit cell for multiple sensing. Based on the technology of deep learning to process the massive receiving data, the profile images and key points of various human postures can be reconstructed very well in the measurement that can verify the validity of the proposed sensing system.
Stable All‐Solid‐State Na Batteries Enabled by In Situ Formed Na─B─H─F Electrolyte
Authors: Pang Yuepeng , Zhang Depei , Sun Hao , Li Xin , Xia Shuixin , Yuan Tao , Chen Taiqiang , Yang Junhe , Wang John , Zheng Shiyou 
Published: September 2023

AbstractAll‐solid‐state Na‐ion batteries are considered to be one of the most promising candidates for large‐scale applications at low‐cost. Hydride electrolytes have been pursued as a research hotspot more recently, owing to their high Na‐ion conductivities, while there is an urgent need to address their electrochemical stabilities in order to meet the requirements for applications in Na batteries. Herein, a novel and universal strategy is proposed to improve the electrochemical stabilities of hydride electrolytes, which takes advantage of the in situ reactions between hydrides and NaHF2. As a representative example, Na2B12H12 can react with NaHF2 to form NaF nanoparticles that are uniformly embedded in the Na2B12H11F matrix, which exhibits superior electrode compatibilities without apparent reduction in conductivity. The symmetrical Na cell thus derived shows a long‐term cycling and the quasi‐symmetrical Na3V2(PO4)3 cell shows high Coulombic efficiency. They give rise to a stable cycling of the Na||Na3V2(PO4)3 all‐solid‐state batteries with a capacity retention of 87.7% after 100 cycles, which can be attributed to the stabilization of electrolyte/electrode interfaces by the F‐enriched interphases. Beyond Na batteries, the present study sheds timely new light on the development of hydride electrolytes for other long‐waited applications.
Deciphering the Degradation Mechanism of High‐Rate and High‐Energy‐Density Lithium–Sulfur Pouch Cells
Authors: Cheng Qian , Chen Zi‐Xian , Li Xi‐Yao , Bi Chen‐Xi , Sun Furong , Zhang Xue‐Qiang , Ma Xinzhi , Li Bo‐Quan , Huang Jia‐Qi 
Published: September 2023

AbstractLithium–sulfur (Li–S) batteries are widely regarded as promising next‐generation battery systems due to their impressive theoretical energy density of 2600 Wh kg−1. However, practical high‐energy‐density Li–S pouch cells suffer from rapid performance degradation under high working rates. Herein, the performance degradation mechanism of 400 Wh kg−1 Li–S pouch cells is systematically investigated under a high cycling rate of 0.2 C. Focusing on the reduced specific capacity and increased cell polarization, the sluggish cathodic sulfur redox kinetics under lean‐electrolyte and high‐rate conditions is identified as the main limitation. Further polarization decoupling indicates the cathodic activation polarization contributes dominantly to the increased cell polarization. Accordingly, a delicately designed electrolyte using dimethyl diselenide as the kinetic promoter is proposed to enable the Li–S pouch cells to work at 0.2 C with reduced cell polarization. This work clarifies the sluggish cathodic interfacial charge transfer kinetics as the main challenge for high‐energy‐density Li–S batteries at high rates and is expected to inspire rational strategy design for achieving advanced Li–S batteries.
Assessing Intra‐abdominal status for clinically relevant postoperative pancreatic fistula based on postoperative fluid collection and drain amylase levels after distal pancreatectomy
Authors: Mukai Yosuke , Asukai Kei , Akita Hirofumi , Kubo Masahiko , Hasegawa Shinichiro , Wada Hiroshi , Miyata Hiroshi , Ohue Masayuki , Sakon Masato , Takahashi Hidenori 
Published: September 2023

AbstractAimThe aim of this study was to evaluate the intra‐abdominal status related to postoperative pancreatic fistula by combining postoperative fluid collection and drain amylase levels.MethodsWe retrospectively reviewed the data of 203 patients who underwent distal pancreatectomy and classified their postoperative abdominal status into four groups based on postoperative fluid collection size and drain amylase levels. We also evaluated the incidence of clinically relevant postoperative pancreatic fistula in each group according to C‐reactive protein values.ResultsThe incidence of clinically relevant postoperative pancreatic fistula in the entire cohort (n = 203) was 28.1%. Multivariate analysis revealed that postoperative fluid collection, drain amylase levels, and C‐reactive protein levels are considerable risk factors for clinically relevant postoperative pancreatic fistula. In the subgroup with large postoperative fluid collection and high drain amylase levels, 65.9% of patients developed clinically relevant postoperative pancreatic fistula. However, no significant difference was observed in C‐reactive protein levels between patients with clinically relevant postoperative pancreatic fistula and those without it. In contrast, in the subgroup with a large postoperative fluid collection size or a high amylase level alone, a significant difference was observed in C‐reactive protein values between the patients with clinically relevant postoperative pancreatic fistula and those without it.ConclusionPostoperative fluid collection status and the C‐reactive protein value provide a more precise assessment of intra=abdominal status related to postoperative pancreatic fistula after distal pancreatectomy. This detailed analysis may be a clinically reasonable approach to individual drain management.
Health care utilization and costs in the years preceding dementia identification
Authors: Kumar Raj G. , Lund Evan Bollens , Ornstein Katherine A. , Li Jing , Covinsky Kenneth E. , Kelley Amy S. 
Published: September 2023

AbstractINTRODUCTIONThere is evidence that health care utilization increases after incident dementia, particularly after dementia diagnosis and toward the end of life; however, less is known about utilization in the years before dementia identification.METHODSIn this retrospective cohort study we obtained data on n = 5547 beneficiaries from the Health and Retirement Study (HRS)‐Medicare linked sample (n = 1241 with and n = 4306 without dementia) to compare longitudinal trends in health care costs and utilization in the 6 years preceding dementia identification relative to a confounder‐balanced reference group without dementia.RESULTSWe found that persons with dementia had a greater prevalence of outpatient emergency department (ED), inpatient hospital, skilled nursing, and home health use, and total health care costs in the years preceding dementia identification compared to their similar counterparts without dementia across a comparable timespan in later life.CONCLUSIONSThis study provides evidence to suggest greater healthcare burden may exist well before clinical manifestation and identification of dementia.Highlights
Several studies have documented the tremendous healthcare‐related costs of living with dementia, particularly toward the end of life.
Dementia is a progressive neurodegenerative disease, which, for some, includes a prolonged pre‐clinical phase. However, health services research to date has seldom considered the time before incident dementia.
This study documents that health care utilization and costs are significantly elevated in the years before incident dementia relative to a demographically‐similar comparison group without dementia.
Interplay of curing and thermal degradation in epoxy resins cured with amino acids: Influence of the maximum curing temperature on the network structure, crystal morphology and mechanical properties
Authors: Rothenhäusler Florian , Ruckdaeschel Holger 
Published: September 2023

AbstractBio‐based alternatives for epoxy resin curing agents are a necessity for fiber reinforced polymer composites to become more sustainable. Here, the precise knowledge about the optimal curing cycle and its influence on the thermoset's mechanical properties are imperative. Therefore, the influence of the maximum curing temperature on the network structure, crystal morphology and mechanical properties of diglycidyl ether of bisphenol A (DGEBA) cured with l‐arginine was investigated with the goal to derive structure–property relationships and a favorable curing cycle. The maximum curing temperature used can be categorized into two regimes: first, the temperature range in which the thermoset reaches complete curing and second, the temperature regime in which the thermoset is fully cured and the thermal degradation starts to diminish its mechanical properties. An optimized curing regimen for achieving high flexural strength accompanied by adequate fracture toughness entails subjecting the material to a curing cycle comprising a duration of 1 h at a temperature of 150°C, followed by an additional 2 h at a temperature of 170°C. This study represents a pioneering effort in optimizing the curing process of amino acid‐cured epoxy resin, specifically focusing on achieving the most favorable mechanical properties as a result.
Non‐zero‐sum differential games of delayed backward doubly stochastic systems and their application
Authors: Xu Jie , Zhang Rui , Lin Ruiqiang 
Published: September 2023

AbstractIn this paper, we investigate the non‐zero‐sum differential game problem based on the delayed backward doubly stochastic differential equation. We discuss the case where the controlled system contains time‐delayed variables, and the time‐delayed variables are different. We construct a new kind of adjoint equation consisting of a doubly stochastic differential equation and three simple differential equations. Under appropriate premises for such equations, we deduce a stochastic maximum principle as a necessary condition and a verification theorem for the Nash equilibrium point by using the duality method and convex variation technique. As an application, we apply our result to a linear delayed backward doubly stochastic non‐zero‐sum game problem to verify the effectiveness of our results.
Preperitoneal vas deferens infiltration in high‐risk prostate cancer
Authors: Gözen Ali Serdar , Koudonas Antonios , Senel Samet , Colecchia Maurizio , Rassweiler Jens 
Published: September 2023

AbstractObjectivesThe objective of this study is to evaluate the prevalence and the importance of preperitoneal vas deferens (VD) infiltration in high‐risk prostate cancer (PCa).Patients and MethodsIn this prospectively designed study, we included 332 high‐risk PCa patients with a Briganti score >5%, who were treated by robot‐assisted radical prostatectomy between July 2017 and February 2022 at the Urology Department, SLK Kliniken Heilbronn. In addition to the standard histological analysis of the distal VD, which was attached to the prostate specimen, we analysed the infiltration status of preperitoneal VD in this cohort. The preperitoneal VD, which represents the middle part of ductus deferens and extends between the internal inguinal ring and obturator fossa, was resected during extended pelvic lymphadenectomy. Distal and preperitoneal VD status was registered together with preoperative and postoperative disease characteristics. Descriptive analysis methods and logistic regression analysis were used.ResultsBriganti score of the target cohort had a median value of 19%, while 235 patients (70.8%) of the group demonstrated a locally advanced disease. The Grade Group at prostatectomy specimen was at least 3 for 286 patients (86.1%). Distal VD infiltration was found in 20 patients (6%) and preperitoneal VD infiltration in two patients (0.6%). Distal VD infiltration was not associated with an increased possibility for positive surgical margins or nodal status among pT3b patients, while both patients with preperitoneal VD infiltration were characterized by highly aggressive disease in locally advanced stage and bilateral distal VD infiltration.ConclusionsPCa extension along VD may reach a more proximal point of VD than the reported from the existing data infiltration of VD adjacent to seminal vesicles. This rare manifestation of PCa local extension may be the intermediate step to the rare cases of recurrence in the testicles. However, more robust data are needed to confirm the aforementioned hypothesis. Distal VD infiltration seems to have no additional prognostic value among patients with infiltrated seminal vesicles.
Tracking gaze position from EEG: Exploring the possibility of an EEG‐based virtual eye‐tracker
Authors: Sun Rui , Cheng Andy S. K. , Chan Cynthia , Hsiao Janet , Privitera Adam J. , Gao Junling , Fong Ching‐hang , Ding Ruoxi , Tang Akaysha C. 
Published: September 2023

AbstractIntroductionOcular artifact has long been viewed as an impediment to the interpretation of electroencephalogram (EEG) signals in basic and applied research. Today, the use of blind source separation (BSS) methods, including independent component analysis (ICA) and second‐order blind identification (SOBI), is considered an essential step in improving the quality of neural signals. Recently, we introduced a method consisting of SOBI and a discriminant and similarity (DANS)‐based identification method, capable of identifying and extracting eye movement–related components. These recovered components can be localized within ocular structures with a high goodness of fit (>95%). This raised the possibility that such EEG‐derived SOBI components may be used to build predictive models for tracking gaze position.MethodsAs proof of this new concept, we designed an EEG‐based virtual eye‐tracker (EEG‐VET) for tracking eye movement from EEG alone. The EEG‐VET is composed of a SOBI algorithm for separating EEG signals into different components, a DANS algorithm for automatically identifying ocular components, and a linear model to transfer ocular components into gaze positions.ResultsThe prototype of EEG‐VET achieved an accuracy of 0.920° and precision of 1.510° of a visual angle in the best participant, whereas an average accuracy of 1.008° ± 0.357° and a precision of 2.348° ± 0.580° of a visual angle across all participants (N = 18).ConclusionThis work offers a novel approach that readily co‐registers eye movement and neural signals from a single‐EEG recording, thus increasing the ease of studying neural mechanisms underlying natural cognition in the context of free eye movement.
Metabolomic Diversity in Microbial Mats Under Different Environmental Conditions: A Tool to Test Microbial Ecosystem Chemical Change
Authors: Buenrostro‐Muñoz Jhoselinne , Jarmusch Scott A. , Souza Valeria , Martínez‐Cárdenas Anahí , Fajardo‐Hernández Carlos A. , Yeverino Itzel R. , Eguiarte Luis E. , Figueroa Mario 
Published: September 2023

AbstractMicrobial mats are microbial communities capable of recycling the essential elements of life and considered to be the oldest evidence of microbial communities on Earth. Due to their uniqueness and limited sampling material, analyzing their metabolomic profile in different seasons or conditions is challenging. In this study, microbial mats from a small pond in the Cuatro Cienegas Basin in Coahuila, Mexico, were collected in wet and dry seasons. In addition to these samples, mesocosm experiments from the wet samples were set. These mats are elastic and rise after heavy rainfall by forming gas domes structures known as “Archean domes”, by the outgassing of methanogenic bacteria, archaea, and sulfur bacteria. Extracts from all mats and mesocosms were subjected to untargeted mass spectrometry‐based metabolomics and molecular networking analysis. Interestingly, each mat showed high chemical diversity that may be explained by the temporal dynamic processes in which they were sampled.
Functionalized Fluorescent Organic Nanoparticles Based AIE Enabling Effectively Targeting Cancer Cell Imaging
Authors: Zhang Jing , Liu Jiaqi , Niu Chengyan , Wu Qiulan , Tan Jingjing , Jing Ning , Wen Ying 
Published: September 2023

AbstractWe report a fluorescent dye TM by incorporating the tetraphenylethylene (TPE) and cholesterol components into perylene bisimides (PBI) derivative. Fluorescence emission spectrum shows that the dye has stable red emission and aggregation‐induced emission (AIE) characteristics. The incorporation of cholesterol components triggers TM to show induced chirality through supramolecular self‐assembly. The cRGD‐functionalized nanoparticles were prepared by encapsulating fluorescent dyes with amphiphilic polymer matrix. The functionalized fluorescent organic nanoparticles exhibit excellent biocompatibility, large Stokes’ shift and good photostability, which make them effective fluorescent probes for targeting cancer cells with high fluorescence contrast.
Heterogeneous Fe‐Doped Ni(OH)2 Grown on Nickel Mesh by Electrodeposition for Efficient Alkaline Oxygen Evolution Reaction
Authors: Mao Fangxin , Zhang Junshan , Wang Hai Feng , Liu Peng Fei , Yang Hua Gui 
Published: September 2023

AbstractDesigning highly excellent and stable catalysts for alkaline oxygen evolution reaction (OER) is gradually pivotal for clean energy development. In this work, a heterogeneous Fe‐doped Ni(OH)2 (Ni/Fe‐0.1) was developed via simple one‐step electrodeposition onto nickel mesh. The heterogeneous interface structure generates sufficient active sites, significantly improving OER performance with an overpotential of 174 mV at 10 mA cm−2 (η10), while Tafel slope is only 43.0 mV dec−1. In particular, Ni/Fe‐0.1 is still able to operate stably at a current density of 1 A cm−2 for 100 h without obvious potential decay. The oxidation of Ni2+ to Ni3+ was detected by X‐ray photoelectron spectroscopy, proving that the heterogeneous catalyst could stabilize the high‐valence state of nickel as active sites to its superior OER performance. This work provides a convenient synthetic strategy for forming heterogeneous catalysts toward efficient water electrolysis.
Partial and Complete Replacement of the Phenyl Group(s) of 1,1,3,3‐Tetraphenyl‐2,2,4,4‐tetrakis(trimethylsilyl)cyclotetrasilane by Chlorine Atom(s)
Authors: Ishida Shintaro , Ishii Yosuke , Fukasawa Tetsuya , Kyushin Soichiro 
Published: September 2023

AbstractThe four phenyl groups of 1,1,3,3‐tetraphenyl‐2,2,4,4‐tetrakis(trimethylsilyl)cyclotetrasilane were partially replaced by chlorine atom(s) by successive treatment with trifluoromethanesulfonic acid and lithium chloride. The replacement of all phenyl groups was carried out with hydrogen chloride in the presence of aluminum chloride. The structural features of the resulting mono‐, di‐, and tetrachlorocyclotetrasilanes were compared by X‐ray crystallography.
Enzymatic Resolution and Decarboxylative Functionalization of α‐Sulfinyl Esters
Authors: Gahalawat Suraksha , Addepalli Yesu , Fink Stephen P. , Kasturi Lakshmi , Markowitz Sanford D. , Ready Joseph M. 
Published: September 2023

Abstractα‐Sulfinyl esters can be readily prepared through thiol substitution of α‐bromo esters followed by oxidation to the sulfoxide. Enzymatic resolution with lipoprotein lipase provides both the unreacted esters and corresponding α‐sulfinyl carboxylic acids in high yields and enantiomeric ratios. Subsequent decarboxylative halogenation, dihalogenation, trihalogenation and cross‐coupling gives rise to functionalized sulfoxides. The method has been applied to the asymmetric synthesis of a potent inhibitor of 15‐prostaglandin dehydrogenase.
Enantiomerization and enantioselective bioaccumulation of diclofop‐methyl in tubifex worms
Authors: Liu Tiantian , Duan Xinhong 
Published: September 2023

AbstractIn this study, the hydrolysis of diclofop‐methyl (DM) in aqueous system and the bioaccumulation of its main metabolite, Diclofop (DA), in the tubifex worms were investigated using enantioselective high‐performance liquid chromatography. With the addition of tubifex, rapid hydrolysis was observed for DM. It is revealed that the hydrolysis of DM in the water and the accumulation of DA in the worms were both enantioselective. Meanwhile, either the hydrolysis amount or the levels of enantioselectivity were influenced by the tubifex. After incubated for 24 h, about 94.6% of the DM was hydrolyzed and the enantiomer fraction of metabolite (DA) deviated from 0.5 with R‐DA significantly higher than S‐DA. The enantiopure S‐DM and R‐DM and S‐DA and R‐DA were incubated, and enantiomerizations were detected between the two DM enantiomers with S‐form inversing into R‐form and vice versa. It was found that the S‐DM exhibited a higher tendency to invert than the R‐DM.
Pseudocapacitive Properties of Isostructural Oxides Sr2LaBMnO7 (B=Co, Fe)
Authors: Kananke‐Gamage Chandana C. W. , Alom Md. Sofiul , Ramezanipour Farshid 
Published: September 2023

AbstractPseudocapacitors promise to fill the gap between traditional capacitors and batteries by delivering reasonable energy densities and power densities. In this work, pseudocapacitive charge storage properties are demonstrated for two isostructural oxides, Sr2LaFeMnO7 and Sr2LaCoMnO7. These materials comprise spatially separated bilayer stacks of corner sharing BO6 units (B=Fe, Co or Mn). The spaces between stacks accommodate the lanthanum and strontium ions, and the remaining empty spaces are available for oxide ion intercalation, leading to pseudocapacitive charge storage. Iodometric titrations indicate that these materials do not have oxygen‐vacancies. Therefore, the oxide ion intercalation becomes possible due to their structural features and the availability of interstitial sites between the octahedral stacks. Electrochemical studies reveal that both materials show promising energy density and power density values. Further experiments through fabrication of a symmetric two‐electrode cell indicate that these materials retain their pseudocapacitive performance over hundreds of galvanostatic charge‐discharge cycles, with little degradation even after 1000 cycles.