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Thermoregulation,incubator humidity,and skincare practices in appropriate for gestational age ultra-low birth weight infants:need for more evidence

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World Journal of Pediatrics 2024年第7期20卷 643-652页

作者： Umesh Mishra Deanne August Karen Walker Pranav r.Jani Mark Tracy Faculty of Medicine and Health University of SydneySydneyAustralia Department of Neonatology Westmead HospitalWestmeadNSWAustralia Grantley Stable Neonatal Unit Royal Brisbane and Women’s HospitalBrisbaneAustralia School of Nursing Midwifery and Social WorkUniversity of QueenslandBrisbaneAustralia Department of Newborn Care Royal Prince Alfred HospitalCamperdownAustralia

Background Although not universal,active care is being offered to infants weighing<500 g at birth,referred to as ultra-low birth weight(ULBW)infants appropriate for gestational *** infants have the greatest risk of dy... 详细信息

Background Although not universal,active care is being offered to infants weighingrth,referred to as ultra-low birth weight(ULBW)infants appropriate for gestational *** infants have the greatest risk of dying or developing major *** infants face challenges related to fluid and heat loss as well as skin injury in the initial days of life from extreme anatomical and physiological immaturity of the *** there is an emerging literature on the outcomes of ULBW infants,there is a paucity of evidence to inform practice guidelines for delivering optimal care to this cohort of *** sources A comprehensive review of the literature was performed using the PubMed and Embase *** keywords included“thermoregulation or body temperature regulation”,“incubator humidity”,“skin care”,“infant,extremely low birth weight”and“ultra-low birth weight infants”.results Evidences for thermoregulation,incubator humidity,and skincare practices are available for preterm infants weighingrth but not specifically for ULBW *** on thermoregulation,incubator humidity,or skincare practices had a small sample size and did not include a sub-group analysis for ULBW *** practice recommendations in ULBW infants are adopted from research in very and/or extremely low birth weight *** This narrative review focuses on challenges in thermoregulation,incubator humidity,and skincare practices in ULBW infants,highlights current research gaps and suggests potential developments for informing practices for improving health outcomes in ULBW infants.

关键词： Incubator humidity Neonatal intensive care unit Skincare Thermoregulation Ultra-low birth weight

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robust Machine Learning Mapping of sEMG Signals to Future Actuator Commands in Biomechatronic Devices

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Journal of Bionic Engineering 2024年第1期21卷 270-287页

作者： Ali Nasr Sydney Bell rachel L.Whittaker Clark r.Dickerson John McPhee Systems Design Engineering University of WaterlooWaterloo N2L 3G1Canada Kinesiology and Health Sciences University of WaterlooWaterloo N2L3G3Canada

A machine learning model for regression of interrupted Surface Electromyography(sEMG)signals to future control-oriented signals(e.g.,robot’s joint angle and assistive torque)of an active biomechatronic device for high-level myoelectric-based hierarchical control is proposed.A recurrent Neural Network(rNN)was trained using output data,initially obtained from offline optimization of the biomechatronic(human–robot)device and shifted by the prediction *** input of the rNN consisted of interrupted sEMG signals(to mimic signal disconnections)and previous kinematic signals of the assistive *** rNN with a 0.1-s prediction horizon could predict the control-oriented joint angle and assistive torque with 92%and 86.5%regression accuracy,respectively,for the test *** proposed approach permits a fast,predictive,and direct estimation of control-oriented signals instead of an iterative process that optimizes assistive torque in the inverse dynamic simulation of a multibody human–robot *** with these interrupted input signals significantly improves the regression accuracy in the case of sEMG signal *** robust Predictive Control-oriented Machine Learning(robust-MuscleNET)model can support volitional high-level myoelectric-based control of biomechatronic devices,such as exoskeletons,prostheses,and assistive/resistive *** work should study the application to prosthesis control as well as the repeatability of the high-level controller with electrode *** low-level hierarchical controller that manages the human–robot interaction,the assistance/resistance strategy,and the actuator coordination should also be studied.

关键词： Myoelectric-based control-Surface electromyography Machine learning Multibody system dynamics Exoskeleton Bionic

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Priority Based Energy Efficient MAC Protocol by Varying Data ratefor Wireless Body Area Network

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Computer Systems Science & Engineering 2024年第2期48卷 395-411页

作者： r.Sangeetha Usha Devi Gandhi School of Information Technology and Engineering Vellore Institute of TechnologyVelloreTamil Nadu632014India

Wireless Body Area Network(WBAN)is a cutting-edge technology that is being used in healthcare applications to monitor critical events in the human *** is a collection of in-body and on-body sensors that monitor human physical parameters such as temperature,blood pressure,pulse rate,oxygen level,body motion,and so *** sense the data and communicate it to the Body Area Network(BAN)*** main challenge for the WBAN is energy *** issues can be addressed by implementing an effective Medium Access Control(MAC)protocol that reduces energy consumption and increases network *** purpose of the study is to minimize the energy consumption and minimize the delay using IEEE 802.15.4 *** our proposed work,if any critical events have occurred the proposed work is to classify and prioritize the *** gave priority to the highly critical data to get the Guarantee Tine Slots(GTS)in IEEE 802.15.4 standard superframe to achieve greater energy *** proposed MAC provides higher data rates for critical data based on the history and current condition and also provides the best reliable service to high critical data and critical data by predicting node *** an outcome,we proposed a MAC protocol for Variable Data rates(MVDr).When compared to existing MAC protocols,the MVDr performed very well with low energy intake,less interruption,and an enhanced packet-sharing ratio.

关键词： Wireless Body Area Network(WBAN) IEEE 802.15.4 energy efficiency MAC protocol ZigBee

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DEM analysis of the influence of stirrer design on die filling with forced powder feeding

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Particuology 2024年第5期88卷 107-115页

作者： Chao Zheng Edward Yost Ariel r.Muliadi Nicolin Govender Ling Zhang Chuan-Yu Wu School of Chemistry and Chemical Engineering University of SurreyGuildfordGU2 7XHUnited Kingdom Small Molecule Pharmaceutics GenentechInc.One DNA WaySouth San FranciscoCA94080USA

Die filling is a critical stage during powder compaction,which can significantly affect the product quality and *** this paper,a forced feeder is introduced attempting to improve the filling performance of a lab-scale die filling *** die filling process is analysed with a graphics processing units(GPU)enhanced discrete element method(DEM).Various stirrer designs are assessed for a wide range of process settings(i.e.,stirrer speed,filling speed)to explore their influence on the die filling performance of free-flowing *** results show that die filing with the novel helical-ribbon(i.e.,type D)stirrer design exhibits the highest filling ratio,implying that it is the most robust stirrer design for the feeder configuration ***,die filling performance with the type D stirrer design is a function of the stirrer speed and the filling speed.A positive variation of filling ratio(ηf>0%)can be ensured over the whole range of filling speed by adjusting the stirrer speed(i.e.,increasing the stirrer speed).The approach used in this study can not only help understand how the stirrer design affects the die filling performance but also guide the optimization of feeder system and process settings.

关键词： Discrete element method Die filling Forced feeding Stirrer design GPU computing

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Magnetohydrodynamics bio-convection flow at Casson fluid stagnation point in porous medium:Cross-diffusion effect and heat production

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Propulsion and Power research 2024年第3期13卷 445-457页

作者： Snehal Patel Harshad r.Patel Gujarat Technological University AhmedabadGujaratIndia Department of Mathematics U V Patel College of EngineeringGanpat UniversityMahesanaIndia

This study examines the effect of heat production and radiation absorption on the magnetohydrodynamic Cassonfluidflow at the stagnation point in a porous *** convert the group offluidflow equations,which are non-linear partial differential equations with suitable boundary constraints,into a set of non-linear ordinary differential equations using similarity *** homotopy analysis method(HAM)solves the converted system of ordinary differential *** draw graphs for numerous values of non-dimensional pa-rameters and tables of surface drag force,rates of heat transfer,and mass transfer to analyze the relationship between velocityfield,temperaturefield,concentrationfield,and other essential parameters involved in the *** have proven that the Dufour number,radiation parameter,and heat generation parameter elevate thefluid temperature,whereas the magnetic parameter lowers *** Cassonfluid parameter,buoyancy force parameter,and mixed convection param-eter all promotefluid movement throughout *** presented tabular data allows us to see the trend of heat and mass transfer rates,as well as drag force rates,against important parameters,enhancing our understanding of these rates.

关键词： Cassonfluid Magnetohydrodynamics(MHD) Stagnation pointflow Thermal radiation Heat source/sink Soret effect

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Identification of earthquake induced structural damage based on synchroextracting transform

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 475-487页

作者： roshan Kumar Gaurav Kumar Wei Zhao Arvind r Yadav Gang Yu Jayendra Kumar Evans Amponsah Department of Electronic and Information Technology Miami College of Henan UniversityHenan 475004China Alliance University Alliance College of Engineering and DesignBanglore 562106India Department of Electronics and Comm Parul UniversityVadodra 391760India School of Electrical Engineering University of JinanJinan 250022China Department of Electronics and Comm NIT JamshedpurJamshedpur 831014India Department of Civil engineering Kwame Nkrumah University of Science and TechnologyKumasi 10959Ghana

Several popular time-frequency techniques,including the Wigner-Ville distribution,smoothed pseudo-Wigner-Ville distribution,wavelet transform,synchrosqueezing transform,Hilbert-Huang transform,and Gabor-Wigner transform,are investigated to determine how well they can identify damage to *** this work,a synchroextracting transform(SET)based on the short-time Fourier transform is proposed for estimating post-earthquake structural *** performance of SET for artificially generated signals and actual earthquake signals is examined with existing *** other tested techniques,SET improves frequency resolution to a great extent by lowering the influence of smearing along the time-frequency ***,interpretation and readability with the proposed method are improved,and small changes in the time-varying frequency characteristics of the damaged buildings are easily detected through the SET method.

关键词： cross-term damage detection earthquake signal synchroextracting transform time-frequency

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Uncovering Microstructure-Property relationship in Ni-Alloyed Fe-Mn-Al-C Low-Density Steel Treated by Hot-rolling and Air-Cooling Process

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Acta Metallurgica Sinica(English Letters) 2024年第4期37卷 713-725页

作者： Xiaoliang Jia Guhui Gao Xiaolu Gui Chun Feng r.D.K.Misra Bingzhe Bai School of Mechanical Electronicand Control EngineeringBeijing Jiaotong UniversityBeijing100044China CNPC Tubular Goods research Institute Xi’an710077China Laboratory for Excellence in Advanced Steel research University of Texas at El PasoEl PasoTX79968-0521USA School of Material Science and Engineering Key Laboratory of Advanced Materials of Ministry of EducationTsinghua UniversityBeijing100084China

This paper focuses on the relationship between the microstructure and tensile properties of Fe-Mn-Al-C low-density high-strength steel processes by hot-rolling and air-cooling process. The microstructure analysis reveals that the combination of hot-rolling and air-cooling results in the formation of heterogeneous structures comprising different-sized γ and B_(2) phases in the low-density steel with the addition of nickel (Ni). The addition of Ni promotes the formation of the B_(2) phase and induces the pinning of B_(2) phase particles at the γ grain boundaries. This pinning effect effectively hinders the growth of the γ grains, leading to grain refinement. The tensile test results demonstrate that LDS-5Ni (low-density steel, LDS) exhibits excellent high strength and ductility combination, e.g., a tensile strength of 1535 MPa, yield strength of 1482 MPa, and elongation of 23.3%. These remarkable mechanical properties are primarily attributed to the combined strengthening contributions of grain refinement and duplex nano-sized second-phase precipitation hardening.

关键词： Low-density steel Microstructure B_(2)phase κ-Carbide Tensile properties

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Surgical management of metastatic neuroendocrine tumors:beyond the realm of evidence-based medicine

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Hepatobiliary Surgery and Nutrition 2024年第3期13卷 551-553页

作者： Jonathan r.Strosberg Taymeyah Al-Toubah Department of Gastrointestinal Oncology Moffitt Cancer Center&Research InstituteUniversity of South FloridaTampaFLUSA

How strong is the evidence supporting surgery for patients with metastatic neuroendocrine tumors(NETs)?This is the chief question from ***’comprehensive and balanced literature analysis on the surgical treatment of metastatic pancreatic NETs(1).No matter how many non-randomized studies demonstrate a survival advantage for patients undergoing cytoreductive hepatic surgery or resection of the primary pancreatic tumor,the methodological biases remain constant(2-9).Patients undergoing surgery tend to be younger and healthier,and their tumors tend to be lower grade,less aggressive,and fewer in number than patients undergoing other systemic or liver-directed *** other words,the survival advantage begins when the patient is selected as a surgical candidate and before the scalpel even touches the *** multivariate analyses can control for some confounding variables,it is impossible to control for *** a simple concept such as tumor burden is challenging to standardize:a patient with a few large tumors confined to a single hepatic lobe may have a vastly different prognosis than a patient with a similar burden of miliary tumors scattered throughout the liver(2).

关键词： Neuroendocrine tumor(NET) cytoreduction debulking surgery transplantation

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SnrK1a1, a new player in the sucrose-Opaque2 network during endosperm filling

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Molecular Plant 2024年第8期17卷 1172-1174页

作者： Kelly Mayrink Balmant Marcio F.r.resende Jr. Horticultural Sciences Department University of FloridaGainesvilleFLUSA

Maize(Zea mays)endosperm is an important food source for humans and *** addition,it is considered an excellent model for research on seed development because of its relatively large size for both embryo and endosperm compared to those of other crop species,such as rice(Oryza sativa)and wheat(Triticum aestivum).After double fertilization,early maize endosperm development includes three stages:(i)a multinucleate coenocyte stage;(i)a cellularization stage,in which the cellular endosperm is formed;and(ii)a stage of differentiation into distinct *** early differentiation,four major cell types with specific functions differentiate within the endosperm:starchy endosperm,aleurone layer,basal endosperm transfer layer(BETL),and embryo surrounding *** subaleurone,conducting zone,basal intermediate zone,and endosperm adjacent to scutellum arise in late differentiation(Sabelli and Larkins 2009).After the main cell types are established,maize endosperm undergoes intensive cell proliferation,which marks the transition to the endosperm-filling *** the endosperm-flling stage,the maternal sucrose products are transported to seeds through the BETL region,where they will act as the main carbon substrate for storage products such as starch and proteins(Chen et al.,2023).In fact,the endosperm of maize seeds accounts for approximately 90%of the total grain weight,serving as an important nutrient reservoir(Flint-Garcia et al.,2009).

关键词： endosperm reservoir Flint

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Hydrodynamic function and spring constant calibration of FluidFM micropipette cantilevers

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Microsystems & Nanoengineering 2024年第1期10卷 277-286页

作者： Attila Bonyár Ágoston G.Nagy Hans Gunstheimer Gotthold Fläschner robert Horvath Department of Electronics Technology Faculty of Electrical Engineering and InformaticsBudapest University of Technology and EconomicsBudapestHungary Nanobiosensorics Laboratory Institute of Technical Physics and Materials ScienceCentre for Energy ResearchHUN-RENBudapestHungary Nanosurf AG Gräubernstrasse 12CH-4410 LiestalSwitzerland

Fluidic force microscopy(FluidFM)fuses the force sensitivity of atomic force microscopy with the manipulation capabilities of microfluidics by using microfabricated cantilevers with embedded fluidic *** innovation initiated new research and development directions in biology,biophysics,and material *** acquire reliable and reproducible data,the calibration of the force sensor is ***,the hollow FluidFM cantilevers contain a row of parallel pillars inside a rectangular *** precise spring constant calibration of the internally structured cantilever is far from trivial,and existing methods generally assume simplifications that are not applicable to these special types of *** addition,the Sader method,which is currently implemented by the FluidFM community,relies on the precise measurement of the quality factor,which renders the calibration of the spring constant sensitive to *** this study,the hydrodynamic function of these special types of hollow cantilevers was experimentally determined with different *** on the hydrodynamic function,a novel spring constant calibration method was adapted,which relied only on the two resonance frequencies of the cantilever,measured in air and in a *** on these results,our proposed method can be successfully used for the reliable,noise-free calibration of hollow FluidFM cantilevers.

关键词： spring cantilever function

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