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Challenges and improvement strategies in the hospitalization of chronic multimorbid patients

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World Journal of Clinical Cases 2025年第3期13卷 35-41页

作者： Andres Fontalba-Navas Francisco Pozo muñoz Rogelio garcia Cisneros maria Jose garcia Larrosa maria del mar Callejon Gil Ignacio garcia Delgado maria Belen Jimenez martinez Antequera hospital Northern Málaga Integrated Healthcare AreaAntequera 29200AndalusiaSpain Department of Public health and Psychiatry University of MálagaMálaga 29010Spain Antequera hospital Northern Málaga Antequera Integrated Healthcare AreaAntequera 29200MálagaSpain

BACKGROUND Addressing the growing challenge of hospitalizing chronic multimorbid patients,this study examines the strain these conditions impose on healthcare systems at a local level,focusing on a pilot *** diseases and complex patients require comprehensive management strategies to reduce healthcare burdens and improve patient *** proven effective,this pilot model has the potential to be replicated in other healthcare settings to enhance the management of chronic multimorbid *** To evaluate the effectiveness of the high complexity unit(hCU)in managing chronic multimorbid patients through a multidisciplinary care model and to compare it with standard hospital *** The study employed a descriptive longitudinal approach,analyzing data from the Basic minimum Data Set(BmDS)to compare hospitalization variables among the hCU,the Internal medicine Service,and other services at Antequera hospital throughout *** hCU,designed for patients with complex chronic conditions,integrates a patient-centered model emphasizing multidisciplinary care and continuity *** The study employed a descriptive longitudinal approach,analyzing data from the BmDS to compare hospitalization variables among the hCU,the Internal medicine Service,and other services at Antequera hospital throughout *** hCU,designed for patients with complex chronic conditions,integrates a patient-centered model emphasizing multidisciplinary care and continuity *** This study demonstrates the effectiveness of the hCU in managing patients with complex chronic diseases through a multidisciplinary *** coordinated care provided by the hCU results in improved patient outcomes,reduced unnecessary hospitalizations,and better management of patient *** superiority of the hCU compared to standard care is evident in key outcomes such as fewer readmissions and higher patient satisfaction,reinforcing its value as a model of ca

关键词： high complexity unit Chronic multimorbidity Patient-centered care Integrated care healthcare management

Is there more than one stickiness criterion?

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Friction 2023年第6期11卷 1027-1039页

作者： Anle WANG martin h.müSER Department of material Science and Engineering Saarland UniversitySaarbrücken66123Germany INm—Leibniz Institute for New materials Saarbrücken66123Germany

Adhesion between an elastic body and a smooth,rigid substrate can lead to large tensile stresses between ***,most macroscopic objects are microscopically rough,which strongly suppresses adhesion.A fierce debate has unfolded recently as to whether local or global parameters determine the crossover between small and large ***,we report simulations revealing that the dependence of the pull-off force Fn on the surface energyγdoes not only have two regimes of high and low adhesion but up to four *** are related to contacts,which at the moment of rupture consist of(i)the last individual hertzian-shaped contact,in which is linear inγ,(ii)a last meso-scale,individual patches with super-linear scaling,(iii)many isolated contact patches with extremely strong scaling,and(iv)a dominating largest contact patch,for which the pull-off stress is no longer negligible compared to the maximum,microscopic pull-off ***(iii)can be seen as a transition *** is located near the point where the surface energy is half the elastic energy per unit area in conformal contact.A criterion for the transition between regimes(i)and(ii)appears difficult to grasp.

关键词： adhesion pull-off force rough contact stickiness

Application of shortened heat treatment cycles on A356 automotive brake calipers with respective globular and dendritic microstructures

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Transactions of Nonferrous metals Society of China 2010年第9期20卷 1780-1785页

作者： h.mLLER G.GOVEN DER W.E.STUmPF materials Science and manufacturing Council for Scientific and Industrial Research (CSIR) Department of materials Science and metallurgic al Engineering University of Pretoria

Since the automotive industry has many possible applications for semi-solid metal (SSm)-high-pressure die casting (hPDC) parts, the newly developed heat treatment cycles, as well as the traditional heat treatment cycles, were applied to A356 brake calipers cast using a LK DCC630 hPDC *** hardness measurements at a cross section of the brake calipers were performed, indicating that similar values can be obtained when using the significantly shorter heat treatment ***, the typical tensile properties that can be obtained for SSm-hPDC A356 brake calipers are compared with those manufactured by gravity die *** indicate that the differences in microstructures (globular or dendritic) do not have a noteworthy effect on the heat treatment *** implies that the short heat treatment cycles originally developed for globular SSm-hPDC A356 castings can be successfully applied to dendritic liquid A356 castings too.

关键词： semi-solid metal (SSm) forming heat treatment A356 brake caliper gravity die casting automotive

Characterization of surface liquid segregation in SSm-hPDC aluminium alloys 7075,2024,6082 and A201

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中国有色金属学会会刊：英文版 2010年第S3期20卷 847-851页

作者： h.mLLER U.A.CURLE E.P.mASUKU materials Science and manufacturing Council for Scientific and Industrial Research(CSIR)PretoriaSouth Africa

The surface liquid segregation(SLS) phenomenon in semi-solid metal-high pressure die casting(SSm-hPDC) plates of 7075,2024,6082 and A201 was investigated by different *** profiles were determined by firstly measuring the ch.mical composition of the surface of the plates using a Thermo Quantris optical emission spectrometer(OES).material was then removed by a grinding process followed by measurement of the amount of material removed and ch.mical *** profiles of the main alloying elements were plotted for the cross-section of the plates in the as-cast and T6(after solution treatment) temper *** hardness profiles from the surface to the centre of the plates were *** samples of cross-sections of the castings were prepared and evaluated using a scanning electron *** results show that surface liquid segregation in SSm-hPDC alloys causes significant differences in properties between the surface and the bulk of these castings in both the F and T6 temper conditions.

关键词： semi-solid metal(SSm) forming alloy 7075 alloy 2024 alloy 6082 alloy A201 surface liquid segregation

Bioleaching of zinc from gold ores using Acidithiobacillus ferrooxidans

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International Journal of minerals,metallurgy and materials 2009年第4期16卷 368-374页

作者： Pakawadee Kaewkannetra Francisco Jose garcia-garcia Tze Yen Chiu Department of Biotechnology Faculty of TechnologyKhon Kaen University Corrosion and Protection Centre School of MaterialsThe University of Manchester Centre of Water Science Cranfield University

The present work investigated microbial leaching of zinc from ore using Acidithiobacillus ferrooxidans （ATCC 14859）. The ore samples, consisted of 13wt% zinc, were obtained from a gold mine in north-eastern Thailand. A shake flask study was performed on the ore samples using a rotary shaker under the following fixed conditions （250 r·min^-1, 30℃ for 16 d）. The influence of various conditions, namely medium type （with and without iron）, particle ore size （〈20, 20-40, 40-60, 60-100, and 〉100 mesh）, ore density （20 kg·m^-3, 50 kg·m^-3, and 100 kg·m^-3）, and ph of the medium （2, 2.5, 2.8, and 3）, were investigated. The microbial leaching was assessed by determining the concentration of zinc in the medium and compared with the initial sample concentration. The results show that Acidithiobacillus ferrooxidans can successfully leach zinc by as much as 6 times compared with the control experiment （without Acidithiobacillus ferrooxidans ferrooxidans）. The maximum efficiency （92.3%） for microbial leaching is obtained in iron-containing medium, 20-40 mesh ore sizes, 20 kg·m^-3 ore density at ph 2.8, and the zinc content is found in the medium at about 120 mg·m^-1.

关键词： bioleaching Acidithiobacillusferrooxidans gold ores gold mine

Nitriles in heterocyclic synthesis: studies on ethyl 3-amino-4,4-dicyano-3-butenoate

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Chinese Journal of Ch.mistry 1991年第5期9卷 461-466页

作者： SOLImAN A.Y BAKEER h.m Department of Ch.mistry Faculty of Education Fayoum Cairo University Egypt Department of Chemistry Faculty of Education Fayoum Cairo University Egypt

New polyfunctionally substituted heterocyclic compounds were synthesized from ethyl 3-amino-4, 4-dicyano-3-butenoate (1) as a starting material.

关键词： CI studies on ethyl 3-amino-4,4-dicyano-3-butenoate Nitriles in heterocyclic synthesis

A new strategy for corrosion protection of porous stainless steel using polypyrrole films

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Journal of materials Science & Technology 2020年第2期37卷 85-95页

作者： C.garcia-Cabezon C.garcia-hernandez m.L.Rodriguez-mendez F.martin-Pedrosa materials Engineering E.I.I.Universidad de Valladolid47011 ValladolidSpain UVASENS E.I.I.Universidad de Valladolid47011 ValladolidSpain

In this work,a method to improve the protection against corrosion of porous sintered stainless steel is *** is based on the electrodeposition of polypyrrole(PPy)layers doped with a large size counterion such as dodecylbenzenesulphonic acid(DBSA),a conducting polymer with high corrosion resistance and good *** efficacy of PPy coating depends on the adequate adhesion between the metal substrate and the coating *** protection against corrosion has been tested using 316 L stainless steel(SS)powder sintered at different conditions to evaluate the effect of the sintering atmosphere(nitrogen and vacuum)and cooling rates(furnace and water)on corrosion resistance,while wrought 316 L SS has been used as reference *** addition,two electroch.mical deposition techniques have been tested to select the most *** circuit potential evolution,anodic polarization measurements and electroch.mical impedance spectra have been used to evaluate corrosion protection in phosphate buffer saline *** has been evidenced that a more h.mogeneous and stable coating was obtained in the case of porous stainless *** corrosion potential shifted to nobler values and the anodic polarization branch became more *** porous samples have a good passivation performance with a lower stable passive current density and a higher breakdown *** transfer electronic resistance and the impedance module increase more than one order of ***,the porosity of sintered stainless steel is seen as an advantage for the improvement of the adherence of the PPy *** best corrosion protection is found for samples sintered in nitrogen and water-cooled.

关键词： Stainless steel Powder metallurgy Protection corrosion Electrodeposited films Polymer coatings

hopf Bifurcations, Drops in the Lid–Driven Square Cavity Flow

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Advances in Applied math.matics and mechanics 2009年第4期1卷 546-572页

作者： Salvador garcia Instituto de matem´aticas Universidad Austral de ChileCasilla 567ValdiviaChile

The lid-driven square cavity flow is investigated by numerical *** is found that from Re=5,000 to Re=7,307.75 the solution is stationary,but at Re=7,308 the solution is time *** the critical Reynolds number for the first hopf bifurcation localizes between Re=7,307.75 and Re=7,*** periodical behavior begins smoothly,imperceptibly at the bottom left corner at a tiny tertiary vortex;all other vortices stay still,and then it spreads to the three relevant corners of the square cavity so that all small vortices at all levels move *** primary vortex stays *** Re=13,393.5 the solution is time periodic;the long-term integration carried out past t_(∞)=126,562.5 and the fluctuations of the kinetic energy look periodic except slight *** at Re=13,393.75 the solution is not time periodic anymore:losing unambiguously,abruptly time periodicity,it becomes *** the critical Reynolds number for the second hopf bifurcation localizes between Re=13,393.5 and Re=13,*** high Reynolds numbers Re=20,000 until Re=30,000 the solution becomes *** long-term integration is carried out past the long time t_(∞)=150,000,expecting the time asymptotic regime of the flow has been *** distinctive feature of the flow is then the appearance of drops:tiny portions of fluid produced by splitting of a secondary vortex,becoming loose and then fading away or being absorbed by another secondary vortex *** Re=30,000 another phenomenon arises—the abrupt appearance at the bottom left corner of a tiny secondary vortex,not produced by splitting of a secondary vortex.

关键词： Navier-Stokes equations hopf bifurcations chaos

Giant magnetoimpedance Effect in Surface modified CoFemoSiB Amorphous Ribbons

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Chinese Physics Letters 2003年第12期20卷 2246-2249页

作者： m.A.Cerdeira G.V.Kurlyandskaya A.Fernandez m.Tejedor h.garcia-miquel UniversidaddeOviedo FacultaddeCienciasDepartamentodeFisicaAvdaCalvoSotelos/n33007OviedoAsturiasSpain GrupodeSensoresymagnetismo DepartamentodeIngenieriaElectronicaUniversidadPolitecnicadeValenciaCaminodeVeras/n46021ValenciaSpain

Thin magnetic Fe layers in thickness of 10–240 nm were deposited onto a wheel surface of CoFemoSiB amorphous ribbons to check our concept of a new type of heterogeneous magnetoimpedance materials formed by two different magnetic parts. The presence of an additional iron layer modifies the magnetoimpedance response of the composite material and leads to increase of the magnetoimpedance ratio from 330 to 345% at a frequency of 3.5 mhz. Two possible mechanisms are discussed for explanation to the observed behaviour. modification of the surface properties of the amorphous ribbons may have certain potential for technological applications.

关键词： Giant magnetoimpedance Effect Surface modified CoFemoSiB Amorphous Ribbons