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Search Results: 1 - 10 of 3680 matches for " Gladis;Vega "
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Seroprevalence of antibodies to Venezuelan equine encephalitis complex (subtypes IAB and VI) in humans from General Belgrano Island, Formosa, Argentina
Cámara, Alicia;Díaz, Gladis;Vega, Victor;Basualdo, María;Contigiani, Marta;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2003, DOI: 10.1590/S0036-46652003000400005
Abstract: this work presents the results of the detection of antibodies (immunoglobulin g) for subtypes i and vi of vee viruses complex (togaviridae family) in people from the general belgrano island, formosa province (argentina). the prevalence of neutralizing (nt) antibodies for subtype vi was from 30% to 70% and the prevalence of antibodies inhibitory of hemagglutination (hi) was of 0% in the first and second inquiry respectively. for the subtype iab the prevalence of nt antibodies was from 13% to 3.6%, similar to the prevalence total for both subtypes. hi antibodies were not detected in any inquiries for any subtype. it was observed that both subtypes circulate simultaneously, while subtype vi remains constant with some peaks, subtype i was found in low level.
Seroprevalence of antibodies to Venezuelan equine encephalitis complex (subtypes IAB and VI) in humans from General Belgrano Island, Formosa, Argentina
Cámara Alicia,Díaz Gladis,Vega Victor,Basualdo María
Revista do Instituto de Medicina Tropical de S?o Paulo , 2003,
Abstract: This work presents the results of the detection of antibodies (immunoglobulin G) for subtypes I and VI of VEE viruses complex (Togaviridae family) in people from the General Belgrano island, Formosa province (Argentina). The prevalence of neutralizing (NT) antibodies for subtype VI was from 30% to 70% and the prevalence of antibodies inhibitory of hemagglutination (HI) was of 0% in the first and second inquiry respectively. For the subtype IAB the prevalence of NT antibodies was from 13% to 3.6%, similar to the prevalence total for both subtypes. HI antibodies were not detected in any inquiries for any subtype. It was observed that both subtypes circulate simultaneously, while subtype VI remains constant with some peaks, subtype I was found in low level.
Phosphoinositide and phospholipid phosphorylation and hydrolysis pathways
—Organophosphate and organochlorine pesticides effects
 [PDF]

Teresa Fonovich, Gladis Magnarelli
Advances in Biological Chemistry (ABC) , 2013, DOI: 10.4236/abc.2013.33A004
Abstract:

Phospholipid and phosphoinositide phosphorylation pathways have been shown to be of crucial importance on producing lipid mediators. The earlier findings reported on lipid molecules playing roles in different metabolic pathways used to assign them the exclusive role of second messenger generators. Several researchers have recently described how direct interaction of phospholipids and phosphoinositides with molecules or organelles, without the need for producing second messenger molecules, is responsible for their mechanism of action. Organophosphate and organochlorine pesticide toxicity mechanisms have been extensively studied in relation to their well known effects on cholinesterase activities and on the alterations of electric activity in the nervous system of different organisms respectively. There is little but consistent evidence that some compounds, including in both groups of pesticides, are also able to interact with phospholipid and phosphoinositide phosphorylation pathways in several organisms and tissues. The present review consists of an actualization of basic research on phospholipid and phosphoinositide phosphorylation and hydrolysis pathways, as well as a description of some reported evidences for the effects of the above mentioned pesticides on them.

Protein phosphorylation pathways disruption by pesticides  [PDF]
Gladis Magnarelli, Teresa Fonovich
Advances in Biological Chemistry (ABC) , 2013, DOI: 10.4236/abc.2013.35050
Abstract: Phosphosites in the human proteome represent an excellent source of potential biomarkers of pesticide toxicity. In fact, experimental animal models as well as in vitro studies have revealed phosphorylation disruption associated to metabolic regulation, hormone signaling, neuronal function and differentiation, cell survival and death. Due to their estrogen-mimicking ability, pesticides are considered as prime etiological suspects of increasing tumor incidence. Evidences of alterations in the signal transduction pathways involved in the tumor progression stage of pesticides were also provided. Despite progress in understanding the effect of pesticides on the human phosphorproteome and their health outcomes, it remains a complex issue to be studied. By now, the potential impact of pesticides in epigenetic phosphorylation pathways remains poorly explored. In addition, studies involving pesticides mixtures effects are needed. This review updates and provides a comprehensive discussion on the molecular and biochemical events underlying protein phosphorylation pathway disruption caused by pesticides most frequently detected in human tissues and fluids, such as organochlorine pesticides and organophosphates. The link between epidemiological studies and experimental approaches is also considered. Future challenges, such as micro-array phosphoproteome studies to complement gene expression arrays to understand the mechanisms involved in pesticide toxicology are briefly discussed.
Weighted inequalities and pointwise estimates for the multilinear fractional integral and maximal operators
Gladis Pradolini
Mathematics , 2009,
Abstract: In this article we prove weighted norm inequalities and pointwise estimates between the multilinear fractional integral operator and the multilinear fractional maximal. As a consequence of these estimations we obtain weighted weak and strong inequalities for the multilinear fractional integral operator. In particular, we extend some results given in \cite{CPSS} to the multilinear context. On the other hand we prove weighted pointwise estimates between the multilinear fractional maximal operator ${\cal M}_{\alpha,B}$ associated to a Young function $B$ and the multilinear maximal operators ${\cal M}_{\psi}={\cal M}_{0,\psi}$, $\psi(t)=B(t^{1-\alpha/(nm)})^{{nm}/{(nm-\alpha)}}$. As an application of these estimate we obtain a direct proof of the $L^p-L^q$ boundedness results of ${\cal M}_{\alpha,B}$ for the case $B(t)=t$ and $B_k(t)=t(1+\log^+t)^k$ when $1/q=1/p-\alpha/n$. We also give sufficient conditions on the weights involved in the boundedness results of ${\cal M}_{\alpha,B}$ that generalizes those given in \cite{M} for $B(t)=t$. Finally, we prove some boundedness results in Banach function spaces for a generalized version of the multilinear fractional maximal operator.
Thermal Characterization and Lifetime Estimation of the Humus Lombricospt  [PDF]
Tulio Andres Florez, Gladis Miriam Aparicio
American Journal of Analytical Chemistry (AJAC) , 2014, DOI: 10.4236/ajac.2014.52007
Abstract:

Through this study, the humus produced in the breeding place of Universidad Autonoma de Occidente was thermally characterized. The humus was submitted to a heating program controlled by the Differential Scanning Calorimetry (DSC) technique to characterize the type of transition, Thermogravimetry (TGA) to study the equilibrium of phasesand Mass Spectrometry (MS) coupled to TGA to identify detached elements in a temperature range. The temperature range used in this study was 30 < T < 600. The energy required for the water desorption in the humus has been found in this study. The humus showed a quick desorption between 30 ≤ TDesorption ≤ 110 at a heating rate of 10/min and presented decomposition around 250. Moreover, the kinetics of the desorption of the humus was studied to obtain the activation energy three TGA measures for three different heating rates. The average activation energy was about 26 kJ/Mol. This result was carried out to obtain an estimation of the desorption time of water in the range from room temperature to the decomposition temperature around 350.

The Battle to Reduce Maternal Deaths in Southern Lima.
Vega
PLOS Medicine , 2006,
Abstract:
Organizaciones en red: Factores críticos de dise?o
Villegas Arias, Gladis Cecilia;
Contaduría y administración , 2008,
Abstract: this paper presents the results of observing four (4) networks that do business in the agriculture sector in colombia: growers of coffee, bananas, flowers and producers of dairy products. the research was designed following the grounded theory method. particularly, axial coding was applied to relate theoretical design variables to observed network behaviors with the purpose of identifying critical design factors for the organizations under study. a model relating the findings is included.
Esteroides antenatales para maduración pulmonar. ?Curso único o cursos múltiples? una pregunta aún vigente
Vélez,Gladis Adriana;
Revista Colombiana de Obstetricia y Ginecología , 2004,
Abstract: an overview about the evolution of antenatal steroids administration in order to accelerate the lung maturity was done; it includes some topics about its origin, physiologic principles and use along the time. the main objective was to review the evidence of possible beneficial and harmful effects after multiple courses. provided that concern exists, and some evidence about the possible risks of weekly courses, they should not be prescribed routinely for women at risk of preterm delivery.
Similitud de redes productivas
Villegas Arias,Gladis Cecilia;
Semestre Económico , 2007,
Abstract: this paper discusses the inferred results upon observing four productive networks that operate in colombia and dedicate their activities to the production and commercializing of coffee, flowers, and milk and meat derivatives. the question that oriented this research was: what aspects are similar in their design in the network organizations that operate in colombia and are included in this study? in order to answer this question, the case comparative case study methodology was applied on the analysis of data that was gathered through direct observation, interviews with key members, revision of internal documents, and an evaluation of the documents of public circulation.
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