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Determination of Soil Aggregate Porosity Using the Modified Water Saturation Method

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Pedosphere 2019年第6期29卷 794-800页

作者： David MOReT-fernánde. María Victoria lópez Departamento de Suelo y Agua Estación Experimental de Aula Dei Consejo Superior de Investigaciones Científicas (EEAD-CSIC)

The need to find a simple method for measuring soil aggregate porosity (φ) is justified by the growing interest of researchers in this important parameter of soil physical status. The aim of this study was to present a simple method (AM) for estimating the total 0 of a single soil aggregate. In this case, soil aggregate 0 was calculated as the quotient between the pore volume, estimated from the weight of the aggregate saturated with ethanol, and the total volume (V T ) of aggregate, calculated from the particle density and dry aggregate weight. The V T estimated with AM was compared with the corresponding volume measured with the photogrammetry (PHM) technique using soil aggregates of 8–16 mm in diameter and collected from three different tillage systems: conventional tillage (CT), reduced tillage (RT), and no tillage (NT). Next, the AM was used to study the effects of the tillage system on soil aggregate φ. Although a strong relationship ( R 2 = 0.99, P etween aggregate V T measured with PHM and that estimated with AM was obtained, AM tende. to unde.estimate aggregate V T with an average deviation of 2.85%. This difference may be due to ethanol evaporation during the first 10 s before the ethanol-saturated aggregate was weighed. The use of AM to determine the effects of different tillage systems on aggregate φ showed that this method was sensitive to detect significant differences among the tillage treatments. The results showed that AM could be an accurate, simple, and inexpensive alternative to estimate φ of a single soil aggregate.

关键词： Aggregate stability Bulk density Particle density Photogrammetry technique Tillage system

Programmed cell death in seeds of angiosperms

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Journal of Integrative Plant Biology 2015年第12期57卷 996-1002页

作者： María Paula lópez-fernánde. Sara Maldonado laboratory of Plant Development Department of Biodiversity and Experimental Biology Faculty of Exact and Natural Sciences University of Buenos Aires National Research Council of Argentine (CONICeT)

During the diversification of angiosperms, seeds have evolved structuralp chemical, molecular and physiolog- ically developing changes that specially affect the nucellus and endosperm. All through seed evolution, programmed celldeath （PCD） has played a fundamental role. However, examples of PCD during seed development are limited. The present review examines PCD in integuments, nucellus, suspensor and endosperm in those representative examples of seeds studied to date.

关键词： Caspases endosperm KDel-CyseP metacaspases nucellus nucleases programmed cell death perisperm ricinosomes

PANoptosis:new insights in regulated cell death in ischemia/reperfusion models

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Neural Regeneration Research 2023年第2期18卷 342-343页

作者： Paloma González-Rodríguez Arsenio fernánde.-lópez Área de Biología Celular Instituto de BiomedicinaUniversidad de LeónSpain

See related article,pp 357-363The first study describing the cell death and destruction of tissues,organs,and organ systems as programmed events during the development of multicellular organisms was performed by JW Saunde.s Jr in *** term apoptosis was introduced by Kerr,Wyllie,and Currie in 1972 to describe a programmed phenomenon opposite to mitosis in the regulation of animal cell ***,a description of ectodermal cell lineages as programmed cell death in the worm Caenorhabditis elegans was publishedby Je Sulston and HR Horvitz in 1976.

关键词： organs insight opposite

Combining anti-inflammatory and unfolding protein responses to fight stroke

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Neural Regeneration Research 2019年第3期14卷 450-451页

作者： Berta Anuncibay-Soto enrique Font-Belmonte Arsenio fernánde.-lópez área de Biología Celular Instituto de Biomedicina Universidad de León Neural Therapies Sl Edificio Institutos de Investigación Campus de Vegazana

This perspective shows an attempt to obtain synergy effects to fight ischemic stroke by combining agents acting on two different homeostatic mechanisms:inflammation and unfolded protein response (Anuncibay-Soto et al.,2018).Different pharmacological approaches have been assayed to alleviate cerebrovascular accident (stroke), which represents one of the most devastating diseases in the elderly.

关键词： Combining anti-inflammatory

Using organotypic hippocampal slice cultures to gain insight into mechanisms responsible for the neuroprotective effects of meloxicam: a role for gamma aminobutyric and endoplasmic reticulum stress

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Neural Regeneration Research 2019年第1期14卷 65-66页

作者： elisa landucci Irene l.llorente Berta Anuncibay-Soto Domenico e.Pellegrini-Giampietro Arsenio fernánde.-lópez Sezione di Farmacologia Clinica e Oncologia Dipartimento di Scienze della SaluteUniversità di Firenze Department of Neurology David Geffen School of Medicine University of California área de Biología Celular Instituto de BiomedicinaUniversidad de León Neural Therapies Sl Edificio Institutos de Investigación

This perspective aims to put into context the recent article by landucci et al.(2018)on mechanisms involved in the neuroprotective effects of meloxicam on an organotypic hippocampal slice cultures(OHSCs)*** vitro cell cultures are the main method for studying large quantities of homogeneous cells in an isolated ***,the use of primary dissociated neuron,astrocyte,oligodendrocyte,microglia,or endothelial cell cultures has become a standard

关键词： gamma 文化海马机制应力蜂窝环境学习胃

Necroptosis in global cerebral ischemia: a role for endoplasmic reticulum stress

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Neural Regeneration Research 2020年第3期15卷 455-456页

作者： enrique Font-Belmonte Paloma González-Rodríguez Arsenio fernánde.-lópez Area de Biologia Celular Instituto de BiomedicinaUniversidad de LeonLeonSpain Neural Therapies Sl Edificio Institutos de InvestigacionCampus de VegazanaLeonSpain

Necroptosis has been reported in the last years as a type of regulated cell death that can be ignited by a number of specific death receptors,such as FAS,tumor necrosis factor receptor 1(TNFR1),or pathogen recognition *** cell death subroutine is involved in the response to stress and in homeostatic functions,such as the maintenance of adult T-cell balance(Galluzzi et al.,2018).Dead receptor activation leads to the recruitment of protein complexes that act as nodes of signaling that can elicit different pathways driving to death or survival,depending on the cell conditions.

关键词： death cerebral ischemia

Atmospheric-pressure dielectric barrier discharge generation by a full-bridge flying capacitor multilevel inverter

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Plasma Science and Technology 2017年第7期19卷 40-49页

作者： Rosendo Pe?A-eGUIlUZ José A lópez-fernánde. Antonio MeRCADO-CABReRA Bethsabet JARAMIllO-SIeRRA Régulo lópez-CAlleJAS Benjamín RODRíGUeZ-Ménde. Raúl VAleNCIA-AlVARADO Allan A FlOReS-FUeNTeS Arturo e MU?OZ-CASTRO Plasma Physics laboratory Instituto Nacional de Investigaciones Nucleares Tecnológico de estudios Superiores de Tianguistenco Universidad Autónoma del estado de México

A new configuration of a resonant full-bridge flying capacitor multicell inverter has been designed and constructed with the aim of achieving an extende. output voltage frequency range with low harmonic distortion and reduced semiconductor commutation losses. This configuration was tested as a power supply for two different coaxial dielectric barrier discharge reactors, one of them employed for electric characterization and the other one for inorganic compound elimination in an aqueous solution. Two different gas mixtures, 90% Ar-10% 02 and 80% Ar-20% 02, were individually supplied during the experiments; the results showed a high- efficiency removal of meta-cresol （m-cresol） to the order of 98%, which was obtained by adding more oxygen to the plasma gas mixture.

关键词： plasma applications water pollution plasma sources power supply circuits electricdischarges

Neuroprotection by salubrinal treatment in global cerebral ischemia

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Neural Regeneration Research 2016年第11期11卷 1744-1745页

作者： Berta Anuncibay-Soto María Santos-Galdiano Arsenio fernánde.-lópez Area de Biologia Celular Instituto de BiomedicinaUniversidad de León

Most common cerebrovascular accidents （CVAs） result from the occlusion of a blood vessel and are called ischemic stroke. The interruption of the blood flow reduces the oxygen and glucose levels in the neural pareuchyma, which in turn decreases the energy of the cells and compromises their homeostasis. This condition has to be reverted for cell survival. One of the homeostatic processes impaired by cerebral ischemia is protein folding in the endoplasmic reticulum （eR） lumen where unfolded proteins are accumulated （Degracia and Monti, 2004）. This situation, known as eR stress, elicits the so called unfolded protein response （UPR）,

关键词： Neuroprotection by salubrinal treatment in global cerebral ischemia MCAO BBB

Comparison of six human anti-transglutaminase elISA-tests in the diagnosis of celiac disease in the Saharawi population

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World Journal of Gastroenterology 2005年第24期11卷 3762-3766页

作者： eloy fernánde. Sabino Riestra luis Rodrigo Carlos Blanco Antonio lópez-Vázquez Dolores Fuentes Maria Moreno Carlos lópez-larrea Biochemistry Service Gastroenterology Service Immunology Service

AIM: Celiac disease (CD) is an enteropathic disorder very prevalent in Saharawi people. Our aim was to investigate the diagnostic accuracy of six human tissue transglutaminase (tTG) based elISA tests in Saharawi CD patients. MeTHODS: Fifty-two CD patients and 23 controls were selected from the Saharawi refugee camps in Tinduf. CD patients were divided into two groups according to their anti-endomysium (emA) status: 41 emA positive and 11 emA negative. Sera from patients and controls were tested for human tTG using six commercial elISA kits. We used receiver operating characteristics (ROC) curves and areas unde. the curve to compare the diagnostic accuracies of the six assays. ReSUlTS: In general, there are differences in the sensitivity and specificity of the human tTG elISA assays used. Diagnostic accuracy of tests was significantly improved by adjusting the cut-off thresholds according to ROC plot analysis; the correction of the cut-off with the employment of the ROC curve analysis modifies the decision limit in more than 50% in five of the six kits evaluated. CONClUSION: Some of the human tTG elISAs used in this study have a diagnostic accuracy similar to emA determination for diagnosis of CD in Saharawi people. However, it is necessary to select the assay with a higher sensitivity and specificity, and recalculate the cut-off threshold using samples from the referral population.

关键词： Anti-transglutaminase tests Comparative study Celiac diagnosis Saharawi population