bluuebunny/crossref_metadata_2025_split huggingface dataset:
Parallel inverter control method based on adaptive parameters
Authors: Liu Chun , Ding Shichuan , Wu Zhongdong , Guo Xiaoxuan , Li Jiangwei 
Published: February 2023

AbstractIn the inverter parallel system, due to the uncertainty of the working environment, the output voltage cannot meet the requirements, and the power distribution accuracy by the traditional droop control method is low. To increase the control accuracy of the output voltage of the inverter parallel system and improve the power distribution accuracy between parallel modules, this paper proposes a parallel inverter control method based on adaptive parameters. This method is improved on the basis of traditional P‐V droop control, and an adaptive parameter control method is implemented by the Lyapunov function, which can effectively improve the control accuracy of the output voltage and ensure that the output voltage remains within a certain constraint range under any load conditions. In order to further improve the output voltage control accuracy, the adaptive parameter control method is adopted. The parameter optimization strategy was deduced, and the steady‐state and dynamic control performances were significantly improved. Simulation and experimental results verify the effectiveness of the proposed control method.
„Wir müssen die Heimdialyse stärken“: Der 10-Punkte-Plan der Deutschen Gesellschaft für Nephrologie (DGfN)
Authors: Pavenstädt Hermann , Galle Jan C. 
Published: February 2023

ZUSAMMENFASSUNGDie Deutsche Gesellschaft für Nephrologie e. V. (DGfN) befasst sich seit Langem mit dem Thema Heimdialyse aus medizinischer Sicht, doch in den letzten Jahren wurden Heimverfahren wegen gesellschaftlicher Entwicklungen auf besondere Weise in den Fokus der Nephrologie gerückt: Der Trend hin zur Individualisierung der Therapie, das wachsende Problem des Pflegemangels und Gründe des Umwelt- und Klimaschutzes sind dabei vorrangig zu nennen. Seit Veröffentlichung der Studie MAU-PD (MAU-PD: Multidimensionale Analyse der Ursachen für die niedrige Prävalenz der ambulanten Peritonealdialyse in Deutschland) und nach Anfrage aus dem Gemeinsamen Bundesausschuss (G-BA) hat sich die DGfN zur Stellungnahme entschieden und die Frage bearbeitet, wie Heimverfahren gestärkt werden können. In den Diskussionen wurde deutlich, dass die relativ geringe Rate an Heimdialysepatient*innen viele Gründe hat und dass man der Herausforderung, die Rate perspektivisch anzuheben, „ganzheitlich“ und auf vielen Ebenen begegnen muss. Mit einem 10-Punkte-Plan skizzierte die DGfN die Maßnahmen, die eine Trendwende herbeiführen könnten. Nun arbeitet sie an der Umsetzung des Plans und nutzt dazu unter anderem die Expertise ihrer Kommissionen.
Transplantation of Ultra-Long Cross-Donor Conjoined Perforator Flaps
with Multiple Blood Supply Sources for Wound Repair
Authors: Liu Zhijin , Liu Shengzhe , Cheng Junnan , Yang Lin , Zhang Tao , Ju Jihui , Hou Ruixing 
Published: February 2023

Abstract
Objective There are reports about the surgical method and clinical
efficacy of using ultra-long cross-donor perforator skin flap transplantation
with multiple blood supply sources to repair wounds.
Method Between January 2013 and March 2019, 29 wounds were repaired using
ultra-long skin flaps from the donor site of the chest, abdomen and
anterolateral thigh. All patients were followed up on a regular basis with a
view to the following: appearance of skin flap, function of recipient area and
healing of donor area.
Result After the operation, all 28 skin flaps were fine. On the fifth day
after the operation, one case of a 47-cm anterolateral thigh flap had dark skin
color in the distal-most area measuring about 5 cm×4 cm,
and the incision showed slow bleeding. In 11 cases, linear scars with soft edges
and no obvious contractures were left in the donor area of the chest and
abdomen. Eighteen cases with lateral femoral donor sites healed successfully,
with linear scars forming without contracture. Three cases with lateral femoral
donor sites had wide linear scars that were slightly above skin level and
exhibited no contracture.
Conclusion Transplantation of ultra-long conjoined cross-donor perforator
flaps with multiple blood supply is beneficial to wound repair and worthy of
clinical promotion.
Perinatal Outcomes during versus Prior to the COVID-19 Pandemic and the Role of Maternal Depression and Perceived Stress: A Report from the ECHO Program
Authors: McKee Kimberly S. , Tang Xiaodan , Tung Irene , Wu Guojing , Alshawabkeh Akram N. , Arizaga Jessica A. , Bastain Theresa M. , Brennan Patricia A. , Breton Carrie V. , Camargo Carlos A. , Cioffi Camille C. , Cordero Jose F. , Dabelea Dana , Deutsch Arielle R. , Duarte Cristiane S. , Dunlop Anne L. , Elliott Amy J. , Ferrara Assiamira , Karagas Margaret R. , Lester Barry , McEvoy Cindy T. , Meeker John , Neiderhiser Jenae M. , Herbstman Julie , Trasande Leonardo , O'Connor Thomas G. , Hipwell Alison E. , Comstock Sarah S. ,   on behalf of program collaborators for Environmental influences on Child Health Outcomes
Published: February 2023

Objective We sought to evaluate the impact of the coronavirus disease 2019 (COVID-19) pandemic on perinatal outcomes while accounting for maternal depression or perceived stress and to describe COVID-specific stressors, including changes in prenatal care, across specific time periods of the pandemic.
Study Design Data of dyads from 41 cohorts from the National Institutes of Health Environmental influences on Child Health Outcomes Program (N = 2,983) were used to compare birth outcomes before and during the pandemic (n = 2,355), and a partially overlapping sample (n = 1,490) responded to a COVID-19 questionnaire. Psychosocial stress was defined using prenatal screening for depression and perceived stress. Propensity-score matching and general estimating equations with robust variance estimation were used to estimate the pandemic's effect on birth outcomes.
Results Symptoms of depression and perceived stress during pregnancy were similar prior to and during the pandemic, with nearly 40% of participants reporting mild to severe stress, and 24% reporting mild depression to severe depression. Gestations were shorter during the pandemic (B =  − 0.33 weeks, p = 0.025), and depression was significantly associated with shortened gestation (B =  − 0.02 weeks, p = 0.015) after adjustment. Birth weights were similar (B =  − 28.14 g, p = 0.568), but infants born during the pandemic had slightly larger birth weights for gestational age at delivery than those born before the pandemic (B = 0.15 z-score units, p = 0.041). More women who gave birth early in the pandemic reported being moderately or extremely distressed about changes to their prenatal care and delivery (45%) compared with those who delivered later in the pandemic. A majority (72%) reported somewhat to extremely negative views of the impact of COVID-19 on their life.
Conclusion In this national cohort, we detected no effect of COVID-19 on prenatal depression or perceived stress. However, experiencing the COVID-19 pandemic in pregnancy was associated with decreases in gestational age at birth, as well as distress about changes in prenatal care early in the pandemic.
Key Points
An Unusual Manifestation of Brucella-Associated Uveitis in a Young Male Patient
Authors: Lazaridou Athina , Kalogeropoulos Dimitrios , Bagli Eleni , Christodoulou Aikaterini , Kittas Christos , Kalogeropoulos Chris 
Published: February 2023

AbstractThis is a unique case of retinoschisis as an ocular manifestation of brucellosis. A 38-year-old male presented with recurrent episodes of bilateral eye redness, predominately in his left
eye. His visual acuity was not affected, and he did not report any other symptoms. On slit lamp examination, binocular Koeppe nodules of the iris and cells in the left anterior chamber were
observed. Fundoscopy followed by meticulous multimodal imaging confirmed left inferior retinoschisis. The patient was diagnosed with panuveitis, and a series of laboratory examinations
revealed positive anti-IgM Brucella antibodies. Ocular brucellosis can cause variable, atypical, and serious presentations, hence, early diagnosis is paramount to avoid
complications.
Acute Limb Ischemia after Cardiovascular Surgery: A Deadly Duo Combination with High Mortality
Authors: Indriani Suci , Dewangga Raditya , Adiarto Suko , Siddiq Taofan , Dakota Iwan , Andriantoro Hananto , Vuylsteke Marc 
Published: February 2023

AbstractAcute limb ischemia (ALI) is a predictor of high morbidity and mortality. Previous studies showed that ALI developed after cardiac surgery may increase mortality.This study aimed to elucidate the clinical course and identify risk factors contributing to mortality in patients with ALI after cardiovascular surgery.This is a single-center retrospective cohort study. We analyzed data from 52 patients with ALI after cardiovascular surgery between 2016 and 2020. We evaluated the risk factors for 1-year mortality using Cox proportional hazards regression analysis.Most of the patients with ALI were male and the median age was 56 years (23–72 years). Most of the patients with ALI had coronary artery diseases. The 1-year mortality rate was 55.8% (n = 29 patients). Multivariable analysis revealed that cardiopulmonary bypass (CPB) time ≥ 100 minutes (hazard ratio [HR]: 3.067, 95% confidence interval [CI]: 1.158–8.120) and postoperative acute kidney injury (HR: 2.927, 95% CI: 1.358–6.305) were significantly increasing the risk of mortality in patients with ALI after an operation. ALI after cardiovascular surgery was associated with high 1-year mortality in our study and long CPB time and postoperative acute kidney injury contributed to the mortality.
Portal Vein Embolization: Indications, Outcomes, and Complications
Authors: Fountain Chandler 
Published: February 2023

AbstractPortal vein embolization (PVE) is performed with the goal of causing hypertrophy of the future liver remnant (FLR) in patients prior to partial liver resections for either hepatocellular carcinoma or metastatic liver tumors. Since its earliest description in 1984, PVE has evolved technically and has proven to be a safe and effective means of causing predictable FLR hypertrophy. PVE allows patients who would have otherwise not been candidates to proceed with safe hepatic resection, particularly extended hepatic resections. Despite advances in equipment and techniques, complications do occur with PVE. This article discusses the indications, outcomes, and complications of PVE while providing historical perspective and technical insights.
Research on the dynamic response of pressurized cylindrical shell structures subjected to a near-field underwater explosion
Authors: Mao Wen-sheng , Zhong Ming-shou , Xie Xing-bo , Ma Hua-yuan , Yang Gui-li , Fan Lei 
Published: February 2023

To study the dynamic response of a pressurized thin-walled circular tube structure subjected to a near-field underwater explosion, deformation and damage tests of a pressurized cylindrical tube shell with different internal pressures and wall thicknesses with the effects of an underwater explosion from 2 g of explosives at different stand-off distances were carried out in a water tank. LS-DYNA finite element software was used to carry out relevant numerical simulations to explore the anti-explosion mechanism of a pressurized cylindrical shell structure affected by factors including the initial internal pressure, the thickness of the cylindrical shell, and the stand-off distance. The simulation inputs are high-speed photography images and the damage results of the cylindrical shell. The simulation results highlight the bubble pulsation, action process deformation, and energy change of the cylindrical shell. The results indicate that an increase in the initial pressure of the cylindrical shell can effectively improve its anti-explosion ability, while the different stand-off distances of r = 12 cm and r = 9 cm correspond to the same initial internal pressure. Increasing the initial internal pressure also causes the deflection difference of the cylindrical shell to decrease. The modeling results also indicate that an increase in the wall thickness may weaken the anti-explosion ability of the cylindrical shell, which has an initial internal pressure of Pr = 0.7 MPa. After an underwater explosion, the maximum displacement difference of a cylindrical shell with thicknesses of h = 1 mm and h = 1.5 mm is less than the maximum rebound distance difference. With this decrease in the distance, the proportion of the high-pressure cylindrical shell subjected to a shock wave increases while the proportion of bubble pulsation decreases. Specifically, the maximum proportions of bubble pulsation are 30% and 92% at the stand-off distances of 3 and 12 cm, respectively.
A 24 nW 10-bit 10 kS/s ultra-low-power SAR ADC for biomedical devices
Authors: Chen Yanbo , Nie Qiong , Zhong Chaowei , Song Jiayi , Huang Yinfeng , Lin Chengkai , Zeng Qiming , Cao Jie , Xue Yan 
Published: February 2023

This paper proposed an ultra-low-power successive approximation register analog to digital converter (ADC) for medical implant devices. To reduce power consumption, the novel techniques presented in this paper are a tri-state capacitor unit, a novel switch scheme, and a new low static power comparator. Tri-state capacitor unit reduces down power without the use of middle voltage reference. The proposed switch scheme can complete the most-significant bit 3-bit conversion without any power consumption. The offset of the low static power comparator is only optimized by physical design. This ADC is fabricated in a 110 nm 1P5M CMOS process. The reference voltage of DAC is 1 V, and the supply voltage of comparator and digital logic is 1.5 V. At 10 kS/s sampling rate, the signal to noise and distortion ratio (SNDR) is 57.57 dB and power consumption is 24 nW.
Magnetic MOF composite material for decontamination of direct red 81 from polluted water
Authors: Salama Eslam , Ossman Mona , Hamdy Ali , Shokry Hassan , Elkady Marwa F. 
Published: February 2023

Herewith, magnetic Zn MOF composite material was utilized as an efficient adsorbent for direct red 81 “DR81” dye from wastewater. The synthesized magnetic MOF was characterized using X-ray diffraction (XRD), field emission transmission electron microscopy (FETEM), Fourier-transform infrared spectroscopy (FTIR), vibrating sample magnetometer (VSM), thermal gravimetrical analysis (TGA), and Brunauer-Emmett-Teller (BET) surface area analysis. The adsorption profile of DR81 anionic dye onto the prepared magnetic MOF was investigated with various processing parameters such as contact time, dosage, and initial dye concentrations. The optimum dosage from the fabricated magnetic Zn MOF for decontamination of DR81 was 1.0 g l−1 at pH = 7 after 30 min. The maximum Langmuir monolayer adsorption capacity of the DR81 decontamination via the synthesized magnetic MOF was recorded 67.35 mg g−1. These promising data confirmed the availability of the synthesized magnetic MOF composite as an excellent adsorbent material for the adsorption of DR81 from aqueous media.
Variation in Andorran Spanish past perfectives
Authors: Hawkey James 
Published: February 2023

AbstractRomance varieties differ in their usage of preterit and present perfect verb tenses. Both are past perfectives, but whereas Portuguese uses the preterit in most contexts, spoken French prefers the present perfect. Peninsular Spanish lies between the two, though evidence indicates that the present perfect is becoming the default past perfective (Schwenter and Torres Cacoullos 2008) in a process of ‘aoristic drift’ (Squartini and Bertinetto 2000). How does speaker multilingualism affect this? Semi-structured interviews were conducted with second-generation members of the Portuguese diaspora in Andorra. We might expect native competence in Portuguese to inhibit aoristic drift in Spanish, since contact has been shown to affect past perfective verb tense in other Romance varieties (Gili Gaya 1993;Hawkey 2020). Contrary to expectations, participants demonstrated aoristic drift. Dense and multiplex migrant networks are, however, shown to favour the maintenance of vernacular norms (Milroy 1980), including generalising the function of the present perfect.
Construcciones exclamativas de rechazo
Authors: Rodríguez Catalina Fuentes 
Published: February 2023

Resumen
La expresión Qué A ni qué B constituye enunciados exclamativos que aparecen en intervenciones
reactivas como comentarios de rechazo. Presenta variantes en su segundo miembro, algunas de ellas son términos minimizadores o
malsonantes, con diferente grado de intensificación. Constituyen una construcción semifijada en la que se unen la descortesía del
acto de habla de rechazo, el uso de formas malsonantes y la emoción inherente a la modalidad expresiva.
Effect of noise and organic solvents on acoustic stapedial reflex
Authors: Loukzadeh Ziba , Houshang Mehrparvar Amir , Razmjooei Zhale , Ghoveh Nodoushan Mohammad Ali , Vakili Mahmood 
Published: February 2023

Objective:
Noise and solvents are two occupational exposures with possible hearing effects. We aimed to assess the effect of exposure to noise and organic solvents on acoustic reflex.

Methods:
This cross-sectional study was conducted on three groups: 80 workers exposed to impermissible amounts of organic solvents (mainly styrene), 78 workers exposed to loud noise and 67 subjects as a control group. The hearing status of the subjects was assessed by pure tone audiometry and acoustic reflex. Data were analysed by SPSS (ver. 20) (SPSS Inc., Chicago, IL) using Student’s t-test, chi-square test and ANOVA.

Results:
The mean hearing threshold at high frequencies was significantly higher in the noise group, followed by the solvent group, compared to the control group (p<.0001). Mean acoustic reflex was higher in the solvent group, followed by the noise group (p<.05). The frequency of absent acoustic reflex was also significantly higher in noise and solvent groups than in controls (p<.05).

Conclusion:
This study suggests that exposure to organic solvents alone without simultaneous noise, despite a normal hearing threshold, can affect acoustic reflex, so conducting preventive hearing tests such as acoustic reflex test, in workers exposed to organic solvents, may be one of the effective ways to prevent occupational hearing loss in these workers.
Characterization of autonomic states by complex sympathetic and parasympathetic dynamics*
Authors: Nardelli Mimma , Citi Luca , Barbieri Riccardo , Valenza Gaetano 
Published: February 2023

Abstract
Assessment of heartbeat dynamics provides a promising framework for non-invasive monitoring of cardiovascular and autonomic states. Nevertheless, the non-specificity of such measurements among clinical populations and healthy conditions associated with different autonomic states severely limits their applicability and exploitation in naturalistic conditions. This limitation arises especially when pathological or postural change-related sympathetic hyperactivity is compared to autonomic changes across age and experimental conditions. In this frame, we investigate the intrinsic irregularity and complexity of cardiac sympathetic and vagal activity series in different populations, which are associated with different cardiac autonomic dynamics. Sample entropy, fuzzy entropy, and distribution entropy are calculated on the recently proposed sympathetic and parasympathetic activity indices (SAI and PAI) series, which are derived from publicly available heartbeat series of congestive heart failure patients, elderly and young subjects watching a movie in the supine position, and healthy subjects undergoing slow postural changes. Results show statistically significant differences between pathological/old subjects and young subjects in the resting state and during slow tilt, with interesting trends in SAI- and PAI-related entropy values. Moreover, while CHF patients and healthy subjects in upright position show the higher cardiac sympathetic activity, elderly and young subjects in resting state showed higher vagal activity. We conclude that quantification of intrinsic cardiac complexity from sympathetic and vagal dynamics may provide new physiology insights and improve on the non-specificity of heartbeat-derived biomarkers.
New developments in the MDT trigger processor for the ATLAS Level-0 muon trigger at High Luminosity LHC
Authors: Sundararajan P. , Ntekas K. 
Published: February 2023

Abstract
The High Luminosity LHC (HL-LHC) will have an instantaneous luminosity 5–7 times higher than LHC. The ATLAS detector, trigger and data acquisition systems will undergo a significant upgrade to cope with the increased particle rate. The upgrade of the ATLAS first-level muon trigger for High-Luminosity LHC foresees incorporating the high-resolution tracking capability of the Monitored Drift Tubes (MDT) in the current system based on Resistive Plate Chambers and Thin Gap Chambers. The MDT Trigger Processor (MDTTP) processes muon trigger candidates along with MDT hits to improve the accuracy of the transverse momentum calculation at the first-level (level-0) of the muon trigger. One of the major challenges is the capability to process all candidates in a bunch crossing within a tight latency constraint. The MDTTP hardware is based on the Apollo ATCA platform [6]. A complete hardware demonstrator is available and an updated prototype has been recently developed. Recent updates in the firmware development, integration and testing are presented.
An FPGA-based readout chip emulator for the CMS ETL detector upgrade
Authors: Zhang L. , Edwards C. , Gong D. , Huang X. , Lee J. , Liu C. , Liu T. , Liu T. , Olsen J. , Sun Q. , Wu J. , Ye J. , Zhang W. 
Published: February 2023

AbstractWe present an FPGA-based readout chip emulator board for the CMS Endcap Timing Layer (ETL) detector upgrade. The emulator board uses an Intel Cyclone 10 GX FPGA to emulate the digital functions of four Endcap Layer Readout Chips (ETROCs). Based on the actual ETROC design, the firmware is implemented and verified. The emulator board is being used for the ETROC digital design verification and system development.
An ATCA processor for Level-1 trigger primitive generation and readout of the CMS barrel muon detectors
Authors: Bestintzanos I. , Adamidis K. , Euaggelou I. , Fernandez Bedoya C. , Foudas C. , Lymperakis A. , Manthos N. , Navarro A. , Papadopoulos I. , Redondo I. , Sotiropoulos S. , Sphicas P. , Vellidis K. 
Published: February 2023

Abstract
An ATCA processor was designed to instrument the first layer of the CMS Barrel Muon Trigger. The processor receives and processes DT and RPC data and produces muon track segments. Furthermore, it provides readout for the DT detector. The ATCA processor is based on a Xilinx XCVU13P FPGA, receives data via 10 Gbps optical links and transmits track segments via 25 Gbps optical links. The processor is instrumented with a Zynq Ultrascale+ SoM connected with an SSD which provides the necessary resources for enhanced monitoring and control information. The design of the board as well as results on its performance are presented.