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Open Journal of Forestry 2012年第2期2卷 54-58页

作者： yuri J.Pena-Ramírez Max M.Apolinar-Hernández oscar a.gomez-y-gomez Luisa A.Lopez-Ochoa Aileen O’Connor-Sánchez Instituto Tecnologico Superior de Acayucan AcayucanMexico Centro de Investigacion Científica de yucatán MéridaMexico

Cedrela odorata is a tropical tree widely appreciated for its wood. Commercial plantations are frequently hampered by the attack of the meliacea borer, Hypsipyla grandella, and the lack of resistant varieties. C. odorata traditional breeding would consume very long periods of time, thus direct transfer of entomotoxic coding genes to generate resistant varieties is a promising alternative. There are two prerequisites for gene manipulation of this species: 1) to set the conditions for transgene delivery and 2) to have a way to select regenerating transformed plants. In this paper, we report the optimal biolistics conditions for transient expression of uidA and gfp reporter genes in C. odorata somatic embryos and the selective doses for kanamycin, spectinomycin, phosphinotrycin and hygromycin to screen transformed cells.

关键词： Biolistics Genetic Transformation Tree Genetic Modification Tropical Wood

Improving colorectal cancer screening programs

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World Journal of Gastroenterology 2024年第22期30卷 2849-2851页

作者： oscar J Cordero Lucia Mosquera-Ferreiro Iria.gomez-Tourino Department of Biochemistry and Molecular Biology University of Santiago de CompostelaSantiago de Compostela 15782Spain Centre for Research in Molecular Medicine and Chronic Diseases(CiMUS) University of Santiago de CompostelaSantiago de Compostela 15782GaliciaSpain

In this editorial we comment on the article by Agatsuma et al published in the World Journal of *** suggest policies for more effective colorectal *** is the main policy that has led to lower mortality rates in later years among the population that was eligible for *** is the gold standard tool for screening and has preventive effects by removing precancerous or early malignant ***,colonoscopy is an invasive process,and fecal tests such as the current hemoglobin immunodetection were developed,followed by endoscopy,as the general tool for population screening,avoiding logistical and economic *** so,participation and adherence rates are *** screening options are being developed with the idea that if people could choose between the ones that best suit them,participation in population-based screening programs would *** tests,such as a recent one that detects cell-free DNA shed by tumors called circulating tumor DNA,showed a similar accuracy rate to stool tests for cancer,but were less sensitive for advanced precancerous *** the time when the crosstalk between the immune system and cancer was being established as a new hallmark of cancer,novel immune system-related biomarkers and information on patients’immune parameters,such as cell counts of different immune populations,were studied for the early detection of colorectal cancer,since they could be effective in asymptomatic people,appearing earlier in the adenoma-carcinoma development compared to the presence of fecal ***26,for example,detected 80.37%of advanced *** reach as many eligible people as possible,starting at an earlier age than current programs,the direction could be to apply tests based on blood,urine or salivary fluid to samples taken during routine visits to the primary health system.

关键词： Mortality rates Colorectal cancer Screening Biomarker Fecal hemoglobin immunodetection Soluble sCD26 Colonoscopy Immunoscores

A comprehensive look at the psychoneuroimmunoendocrinology of spinal cord injury and its progression: mechanisms and clinical opportunities

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Military Medical Research 2024年第2期11卷 228-267页

作者： Miguel A.Ortega oscar Fraile-Martinez Cielo García-Montero Sergio Haro Miguel Ángel Álvarez-Mon Diego De Leon-Oliva Ana M.gomez-Lahoz Jorge Monserrat Mar Atienza-Pérez David Díaz Elisa Lopez-Dolado Melchor Álvarez-Mon Department of Medicine and Medical Specialities University of Alcala28801 Alcala de HenaresSpain Ramón y Cajal Institute of Sanitary Research(IRyCIS) 28034 MadridSpain Department of Psychiatry and Mental Health Hospital Universitario Infanta Leonor28031 MadridSpain Service of Rehabilitation National Hospital for Paraplegic PatientsCarr.de la PeraledaS/N45004 ToledoSpain Immune System Diseases‑Rheumatology Service and Internal Medicine University Hospital Príncipe de Asturias(CIBEREHD)28806 Alcala de HenaresSpain

Spinal cord injury(SCI)is a devastating and disabling medical condition generally caused by a traumatic event(primary injury).This initial trauma is accompanied by a set of biological mechanisms directed to ameliorate neural damage but also exacerbate initial damage(secondary injury).The alterations that occur in the spinal cord have not only local but also systemic consequences and virtually all organs and tissues of the body incur important changes after SCI,explaining the progression and detrimental consequences related to this ***(PNIE)is a growing area of research aiming to integrate and explore the interactions among the different systems that compose the human organism,considering the mind and the body as a *** initial traumatic event and the consequent neurological disruption trigger immune,endocrine,and multisystem dysfunction,which in turn affect the patient's psyche and *** the present review,we will explore the most important local and systemic consequences of SCI from a PNIE perspective,defining the changes occurring in each system and how all these mechanisms are ***,potential clinical approaches derived from this knowledge will also be collectively presented with the aim to develop integrative therapies to maximize the clinical management of these patients.

关键词： Spinal cord injury(SCI) Psychoneuroimmunoendocrinology(PNIE) Secondary injury Immunoinflammatory dysfunction Gut microbiota Translational opportunities

A Survey on Type-3 Fuzzy Logic Systems and Their Control Applications

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IEEE/CAA Journal of Automatica Sinica 2024年第8期11卷 1744-1756页

作者： oscar Castillo Fevrier Valdez Patricia Melin Weiping Ding Tijuana Institute of Technology/Tecnologico Nacional de Mexico Division of Graduate StudiesCalzada Tecnologico S/NTijuana 22414Mexico School of Information Science and Technology Nantong UniversityJiangsu 226019China

In this paper,we offer a review of type-3 fuzzy logic systems and their applications in *** main objective of this work is to observe and analyze in detail the applications in the control area using type-3 fuzzy logic *** this case,we review their most important applications in control and other related topics with type-3 fuzzy *** algorithms have been receiving increasing attention in control and for this reason a review in this area is *** paper reviews the main applications that make use of Intelligent Computing ***,type-3 fuzzy logic *** aim of this research is to be able to appreciate,in detail,the applications in control systems and to point out the scientific trends in the use of Intelligent Computing *** is done with the construction and visualization of bibliometric networks,developed with VosViewer Software,which it is a free Java-based program,mainly intended to be used for analyzing and visualizing bibliometric *** this tool,we can create maps of publications,authors,or journals based on a co-citation network or construct maps of keywords,countries based on a co-occurrence networks,research groups,etc.

关键词： Applications control systems optimization review type-3 fuzzy logic.

Effect of reaction and post-treatment conditions on physico-chemical properties of magnetic iron oxide nano-particles Author links open overlay panel

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Particuology 2024年第8期91卷 155-167页

作者： Masome Moeni Mohamed Edokali Matthew Rogers oscar Cespedes Louey Tliba Tamseela Habib Robert Menzel Ali Hassanpour School of Chemical and Process Engineering Faculty of Engineering and Physical ScienceUniversity of LeedsLeedsLS29JTUK School of Physics and Astronomy Faculty of Engineering and Physical ScienceUniversity of LeedsLeedsLS29JTUK Mechanical Engineering Department University of Engineering&TechnologyLahorePakistan School of Chemistry Faculty of Engineering and Physical ScienceUniversity of LeedsLeedsLS29JTUK

Poor stability and dispersibility,as well as aggregation are considered as major challenges in clinical application of iron oxide nanoparticles(IONPs).Several studies have shown that the synthesis parameters and post-synthesis treatments e.g.,drying methods,have the capability to improve the particles'***,we investigate the combined effect of synthesis and post-treatment parameters on the particle size,stability and magnetism of ***(Fe_(3)O_(4))NPs were prepared via co-precipitation and post-treated using different methods,i.e.(i)freeze dried at-53℃,0.133 mbar for 48 h(liquid nitrogen frozen(LFD)and freezer frozen(FFD)),(ii)vacuum oven dried(VOD)at 60℃for 24 h,and(iii)kept wet colloidal(WET),dispersed in deionized *** Fe_(3)O_(4)NPs’chemical functional groups,size,shape,crystallinity,stability,aggregation,porosity,and magnetic properties were further analysed using different characterisation *** results showed that,while the WET sample had the best stability and significantly less aggregation at different temperatures,amongst post-treated Fe_(3)O_(4)NPs,LFD sample exhibited the best stability(up to 37℃),dispersion and smallest polydispersity ***,all dried NPs had superparamagnetic characteristics,while,LFD Fe_(3)O_(4)NPs had better magnetic properties and stability than other drying methods.

关键词： Iron oxide nanoparticles Co-precipitation Stability Aggregation Magnetic properties

Output feedback adaptive super twisting sliding mode control for quadrotor UAVs

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Control Theory and Technology 2024年第1期22卷 92-105页

作者： oscar Salas-Peña Jesus DeLeón-Morales Susana V.Gutiérrez-Martínez École Centrale de Nantes-LS2N UMR 6004 CNRS44300NantesFrance Facultad de Ingeniería Mecánica y Eléctrica Universidad Autónoma de Nuevo León66451San Nicolás de Los GarzaMexico

In this paper, a sliding mode control with adaptive gain combined with a high-order sliding mode observer to solve the tracking problem for a quadrotor UAV is addressed, in presence of bounded external disturbances and parametric uncertainties. The high order sliding mode observer is designed for estimating the linear and angular speed in order to implement the proposed scheme. Furthermore, a Lyapunov function is introduced to design the controller with the adaptation law, whereas an analysis of finite time convergence towards to zero is provided, where sufficient conditions are obtained. Regarding previous works from literature, one important advantage of proposed strategy is that the gains of control are parameterized in terms of only one adaptive parameter, which reduces the control effort by avoiding gain overestimation. Numerical simulations for tracking control of the quadrotor are given to show the performance of proposed adaptive control–observer scheme.

关键词： Adaptive super twisting controller High-order sliding modes observer UAV

Effect of autologous serum after amniotic membrane transplantation for persistent corneal ulcers

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International Journal of Ophthalmology(English edition) 2024年第9期17卷 1639-1644页

作者： Rozaliya Hristova Petya yankova Georgi Markov Alexander oscar yani Zdravkov Department of Ophthalmology Medical University SofiaUniversity Hospital AlexandrovskaSofia 1431Bulgaria Department of Clinical Immunology Medical University SofiaUniversity Hospital AlexandrovskaSofia 1431Bulgaria

AIM:To investigate the effect of adding autologous serum eye drops to the postoperative regime after amniotic membrane transplantation for severe persistent corneal ***:Forty eyes of 40 patients with persistent corneal ulcers were randomly assigned to artificial tears(sodium hyaluronate 0.2%,ATs group,n=20)or autologous serum eye drops(ASEDs,n=20)following treatment with amniotic membrane *** slit lamp images were acquired from all patients before and 30d post *** area with fibrovascular tissue was calculated using Image *** corneal sensitivity was assessed by Cochet-Bonnet aesthesiometry before and one month after *** tissue transparency was assessed with a novel optical ***:Mean age of patients was 61.65±16.47y and 57.3±19.11y in the ATs group and ASEDs group,***-two male and 18 female patients were included in the *** improvement in visual acuity was significantly greater in the ASEDs group(0.14±0.04)than the ATs(0.08±0.04;P=0.00046).Cochet-Bonnet aesthesiometry improved significantly after treatment with a similar rate between *** were no statistically significant differences in the area of postoperative fibrovascular tissue between the two groups(P=0.082).The success rate in the two groups was *** difference in densitometry between the ATs and ASEDs group was statistically significant(P=0.042)with greater reduction from baseline in the ASEDS ***:Autologous serum eye drops can lead to better visual acuity,more stable results and improved densitometry and should be considered in the postoperative care following amniotic membrane transplantation.

关键词： autologous serum amniotic membrane ocular surface persistent corneal ulcer

Outcomes and variables that impact pneumatic retinopexies

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 564-569页

作者： Maria V.Castanos Daniel Vail oscar Otero-Marquez yash Shah Avnish Deobhakta New york Eye and Ear Infirmary of Mount Sinai New York 10003New YorkUSA

●AIM:To evaluate the efficacy of pneumatic retinopexy(PR)in patients undergoing PR as primary treatment for rhegmatogenous retinal detachment(RRD)and analyze the factors associated with success and failure in the studied population.●METHODS:A retrospective chart review was done of patients with RRD treated with PR as primary management method treated at New york Eye and Ear Infirmary of Mount Sinai between January 2017 and December *** outcome measured success or failure of *** outcome measured best corrected visual acuity(BCVA)after PR.A separate risk analysis was done to identify and stratify risks associated with success and failure of PR.●RESULTS:A total of 179 eyes from 179 patients were included for final *** 83 patients(46.37%)achieved anatomical reattachment of the retina after primary PR with no need for additional *** 96 patients(53.63%)had a failed primary PR and required a PPV and 6 of them required pars plana vitrectomy(PPV)with scleral buckle(SB).In total,19 cases(10.61%)were done as temporizing pneumatics,18(94.74%)underwent PPV,and 1(5.26%)did not require further *** visual acuities at postoperative month 1(POM1)for patients who underwent primary PR successfully and for those that underwent PPV after,were 0.58(20/80)and 1.03(20/200)*** who met Pneumatic Retinopexy Versus Vitrectomy for the Management of Primary Rhegmatogenous Retinal Detachment Outcomes Randomized Trial(PIVOT)criteria had a statistically significant decreased risk of primary PR failing(hazard ratio 0.29,P=0.00).Majority of missed or new breaks were found superotemporally.●CONCLUSION:PR is a good treatment option for treating RRDs in patients that meet PIVOT criteria and can be conducted as a temporizing *** criteria and fovea on status decrease the risk of PR failure.

关键词： retina pneumatic retinopexy rhegmatogenous retinal detachment

The effect of electrical current on lubricant film thickness in boundary and mixed lubrication contacts measured with ultrasound

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Friction 2024年第8期12卷 1882-1896页

作者： Julio A.CAO-ROMERO-GALLEGOS Saeid TAGHIZADEH oscar A.AGUILAR-ROSAS R.S.DWyER-JOyCE Leonardo I.FARFAN-CABRERA Tecnologico de Monterrey Escuela de Ingeniería y CienciasAve.Eugenio Garza Sada 2501MonterreyN.L.64849México Department of Mechanical Engineering Leonardo Centre for TribologyUniversity of SheffieldSheffield S13JDUK

This work explores experimentally the effects of DC electrical currents on lubricant film thickness alteration in lubricated sliding steel contacts in the boundary and mixed regime as measured by *** experiments were performed in a two-electrode cell-based pin-on-disk tester instrumented with ultrasonic *** and electrified tribological tests were conducted on steel flat-on-flat contacts under various speeds and loads using both a mineral base oil and a gear *** thickness,coefficient of friction(CoF),and electrical contact resistance(ECR)were measured during short experiments(30 s)in unelectrified and electrified(1.5 and 3 A)*** results suggest that film thickness,CoF,and all ECR are altered by passing DC currents through the *** particular,film thickness increased and decreased,respectively,by applying electricity at the different speeds and loads *** alterations were majorly ascribed to oil viscosity decrease by local heat and surface oxidation caused by electrical discharge and break down at the interface.

关键词： electrified sliding ultrasonic measurement electric vehicles pin-on-disk

Hydrogen storage in a rare-earth perovskite-type oxide La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_3 for battery applications

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Rare Metals 2018年第12期37卷 1003-1013页

作者： John Henao oscar Sotelo Maura Casales-Diaz Lorenzo Martinez-gomez CONACyT-CIATEQ A.C. Av. Manantiales 23-AParque Industrial Bernardo Quintana Instituto de Ciencias Fisicas (ICF) Universidad Nacional Autonoma de Mexico (UNAM)-Campus Morelos

Recently, rare-earth perovskite-type oxides with the general formula ABO(A rare earth element, B transition metal, O oxygen) are regarded as promising materials for Ni/oxide batteries due to their hydrogen storage ability. In the present study, the hydrogen storage properties of the rare-earth perovskite-type oxide LaSrCoFeOwere evaluated in alkaline solution and at various temperatures. The hydrogen storage properties were investigated electrochemically by applying galvanostatic charge/discharge currents. Electrochemical pressurecomposition-temperature isotherms were constructed using the Nernst equation. The exchange current density and proton hydrogen diffusion coefficient were calculated using linear polarization measurements and the potential-step method, respectively. Interestingly, the maximum hydrogen absorption capacity, re-calculated from the electrochemical capacity, is 1.72 wt% at 333 K and 6 mol·LKOH. In addition, the hysteresis value, calculated from pressure-composition-temperature isotherms, was429 J·molat 333 K,while the self-discharge rate was about 25% after 24-h storage at open circuit and at 333 K.

关键词： Hydrogen storage Rare earths Perovskites Ni/oxide batteries