Rodriguez Vasquez, Mery

Cargando...
Miniatura
Nombre preferido
Rodriguez Vasquez, Mery
Afiliación principal
Correo electrónico
meryrv@upeu.edu.pe
ORCID
ID de autor de Scopus

Ajustes

Mostrando 1 - 10 de 54
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Estado nutricional y rendimiento académico en escolares de 7 a 14 años de la Institución Educativa Mi Jesús, Lurigancho, Lima
    (2017-04-11)
    Jacksaint Saintila
    ;
    Mery Rodríguez Vásquez  
    Objetivo: Determinar la relación entre el estado nutricional y rendimiento académico en escolares de 7 a 14 años de la “Institución Educativa Mi Jesús”, La Era-Lima, 2016. Materiales y métodos: De enfoque cuantitativo, decorte transversal, de diseño no experimental y de tipo descriptiva-correlacional. La población estuvo conformada por 80 escolares de 1º a 6º grado de primaria y de 1º a 2º grado de secundaria. Las mediciones antropométricasque se realizaron para determinar el estado nutricional fueron: el peso (kg), la talla (cm), edad (años), Índice de Masa Corporal (IMC) y talla para la edad (T/E). Para evaluar la ingesta proteica y de minerales se aplicó uncuestionario de recordatorio de 24 horas. Para evaluar el rendimiento académico se utilizó el boletín académico de todo el año escolar. Resultados: Se evidenció que el 53% de los estudiantes presentaron un Índice de Masa Corporal dentro de lo normal, el 61.3% presentó una talla adecuada para la edad. También, el 70% ha alcanzado un rendimiento adecuado (entre logro destacado y logro previsto). Finalmente, se encontró que el 56.3% tiene una ingesta normal de proteína; referente a la ingesta de hierro, del sexo femenino, 18 presentan una ingestanormal en un 58.1% y solamente 8 presentan una ingesta alta en un 25.5%; asimismo, del sexo masculino, se observó que 25 presentan ingesta normal en un 51% y 12 tienen una ingesta alta en un 24.5% y el 53.8% presentauna ingesta normal de zinc. Conclusión: Existe relación estadísticamente significativa entre el estado nutricional y rendimiento académico (p<.05).
    Citas (OpenAlex): 6
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Biochemical differences based on sex and clusters of biomarkers in patients with COVID-19: analysis from the CARDIO COVID 19–20 registry
    (2025-03-05)
    Frank Cañón-Estrada  
    ;
    Juan Andrés Muñoz-Ordoñez
    ;
    Manuela Escalante‐Forero
    ;
    Yorlany Rodas
    ;
    Andrea Alejandra Arteaga-Tobar
    BACKGROUND: The inflammatory response associated with COVID-19 varies with sex, potentially affecting disease outcomes. Males have a higher risk of complications compared to females, requiring an evaluation of differences in inflammatory response severity based on sex. OBJECTIVE: To compare clinical data, biochemical biomarkers, and outcomes among hospitalized COVID-19 patients in Latin America and the Caribbean (LA&C) based on sex and to perform a cluster analysis of biomarker profiles for both sexes. METHODS: This prospective, multicenter observational registry made by the Inter-American Council of Heart Failure and Pulmonary Hypertension of the Inter-American Society of Cardiology included hospitalized COVID-19 patients from 44 hospitals in 14 countries in LA&C between May 1, 2020, and June 30, 2021. RESULTS: Of 3,260 patients (1,201 females and 2,059 males), males had higher C-reactive protein and ferritin levels, while females had higher natriuretic peptides and d-dimer levels. Males had more cardiovascular complications (acute coronary syndrome [3.3% vs. 2.2%], decompensated heart failure [8.9% vs. 7.8%], pulmonary embolism [4.4% vs. 2.9%]), intensive care unit (ICU) admissions (56.9% vs. 47.7%), and overall mortality (27.5% vs. 22.1%). Cluster analysis identified three groups: one with normal-range biomarkers but elevated ferritin, one with coagulation abnormalities, and one with an inflammatory profile linked to renal injury and increased non-cardiovascular mortality. CONCLUSIONS: In the LA&C population hospitalized with COVID-19, males had higher inflammatory biomarker levels, correlating with increased cardiovascular complications and mortality. The cluster with an inflammatory profile showed higher non-cardiovascular mortality, while clusters with elevated ferritin levels were associated with increased ICU admissions.
    Citas (OpenAlex): 1metric-badges.view 1
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Photoproduction of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> Pairs in Ultraperipheral Collisions
    (2024-05-31)
    S. Acharya  
    ;
    D. Adamová
    ;
    G. Aglieri Rinella
    ;
    M. Agnello
    ;
    N. Agrawal
    K^{+}K^{-} pairs may be produced in photonuclear collisions, either from the decays of photoproduced ϕ(1020) mesons or directly as nonresonant K^{+}K^{-} pairs. Measurements of K^{+}K^{-} photoproduction probe the couplings between the ϕ(1020) and charged kaons with photons and nuclear targets. The kaon-proton scattering occurs at energies far above those available elsewhere. We present the first measurement of coherent photoproduction of K^{+}K^{-} pairs on lead ions in ultraperipheral collisions using the ALICE detector, including the first investigation of direct K^{+}K^{-} production. There is significant K^{+}K^{-} production at low transverse momentum, consistent with coherent photoproduction on lead targets. In the mass range 1.1<M_{KK}<1.4 GeV/c^{2} above the ϕ(1020) resonance, for rapidity |y_{KK}|<0.8 and p_{T,KK}<0.1 GeV/c, the measured coherent photoproduction cross section is dσ/dy=3.37±0.61(stat)±0.15(syst) mb. The center-of-mass energy per nucleon of the photon-nucleus (Pb) system W_{γPb,n} ranges from 33 to 188 GeV, far higher than previous measurements on heavy-nucleus targets. The cross section is larger than expected for ϕ(1020) photoproduction alone. The mass spectrum is fit to a cocktail consisting of ϕ(1020) decays, direct K^{+}K^{-} photoproduction, and interference between the two. The confidence regions for the amplitude and relative phase angle for direct K^{+}K^{-} photoproduction are presented.
    Citas (OpenAlex): 8
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Case-fatality of acute ischemic stroke in stroke units of Latin American hospitals
    (2025-07-15)
    Miguel A. Vences  
    ;
    Miguel A. Barboza
    ;
    Leonardo Augusto Carbonera
    ;
    Virgilio E. Failoc‐Rojas
    ;
    Julieta Rosales
    BACKGROUND AND PURPOSE: The Case-fatality of acute ischemic stroke in stroke units of Latin American hospitals is a multicenter registry from various stroke centers in Latin America, exploring demographic, clinical, imaging, and functional outcomes in acute ischemic stroke (AIS) patients, with the intention of determining case-fatality rates (in-hospital, 30 and 90 days follow up) and analyzing associated risk factors. METHODS: We conducted a retrospective cohort study using data from hospitalized AIS patients over 18 years of age, collected from 27 centers in 11 Latin American countries between January 1 and December 31, 2022. The effect size was estimated using the hazard ratio (HR) and 95 % confidence intervals (95 % CI) through Cox regression models to assess the association between time to 30-day fatality event and covariates. RESULTS: A total of 2,997 patients were included. The mean age was 68.7 years and 48.1 % were women. In-hospital case-fatality was 9.42 %, 277 patients (10.2 %) died within 30 days, and 90-day case-fatality was relatively close at 353 patients (13.3 %). Complications were reported in 31.3 % of cases, most frequently infections (18.5 %). Age over 75 years (HRa=2.28), hyperglycemia (HRa=1.28), baseline status (HRa=1.61), stroke severity according to NIHSS >26 (HRa=6.11) and the presence of neurological complications (HRa=3.2) were risk factors for 30-day follow up case-fatality in these patients. CONCLUSION: AIS patients in Latin America stroke centers had an in-hospital case-fatality of 9.42 % and the 30-day case-fatality was 10.2 %. Older age, hyperglycemia, baseline status, stroke severity and neurological complications were the strongest predictors of early case-fatality. The findings underscore the need to optimize stroke management protocols in the region.
    Citas (OpenAlex): 1metric-badges.view 5
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Nutrition and education. II. Educational achievement and nutrient intake of Chilean elementary and high school graduates.
    (1991-12-01)
    Daniza Ivanovic
    ;
    Mery Rodríguez Vásquez  
    ;
    Macarena Marambio
    ;
    D Ballester
    ;
    Isabel Zacarías
    The interrelationships between educational achievement (EA) and nutrient intake were investigated in 550 Chilean adolescent schoolers graduating from elementary and high school. The random sample included schoolers from both educational levels (1:1), from public and private schools (1:1), and from high, medium, and low socioeconomic status (SES) (1:1:1). Standard procedures for 24-hour dietary recall interviews were used to collect data, and adequacy of intake was assessed by the FAO/WHO Pattern. EA was measured by means of the Achievement Evaluation Program (AEP) and Academic Aptitude Test (AAT) in elementary and high school, respectively. In elementary school graduates, results showed a significant and positive correlation between EA (AEP) and energy, protein, riboflavin, ascorbic acid, calcium and vitamin A intake (Multiple r = 0.456 p less than 0.01; r2 = 0.208). The School Feeding Program beneficiaries who belonged to the low SES presented the lowest EA (AEP) together with a deficient nutrient intake, especially for energy, riboflavin, niacin, vitamin A and calcium, at the same time that they registered the lowest values for those anthropometric parameters, indicators of past nutrition, that is to say height-for-age, weight-for-age, head circumference-for-age and a higher upper-to-lower segment ratio, as compared with non-beneficiaries from the same SES and with those from the higher strata. In high-school graduates, EA (AAT) was found to be significantly and positively correlated with protein, calcium, riboflavin and iron intake (Multiple r = 0.438 p less than 0.001; r2 = 0.192). Nevertheless, these interrelationship are strongly related to SES and sex. Results showed that educational achievement (EA) is significantly and positively associated with nutrient intake, this fact being important for educational planning related to the School Feeding Program.
    Citas (OpenAlex): 7
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Long-Range Transverse-Momentum Correlations and Radial Flow in Pb-Pb Collisions at the LHC
    (2025-11-17)
    S. Acharya  
    ;
    G. Aglieri Rinella
    ;
    L. Aglietta
    ;
    M. Agnello
    ;
    N. Agrawal
    This Letter presents measurements of long-range transverse-momentum correlations using a new observable, v_{0}(p_{T}), serving as a probe of event-by-event radial-flow fluctuations, the underlying radial expansion, and the medium's properties in heavy-ion collisions. Results are reported for inclusive charged particles, pions, kaons, and protons across various centrality intervals in Pb-Pb collisions at sqrt[s_{NN}]=5.02 TeV, recorded by the ALICE detector. A pseudorapidity-gap technique, similar to that used in anisotropic-flow studies, is employed to suppress short-range correlations. At low p_{T}, a characteristic mass ordering consistent with hydrodynamic collective flow is observed. At higher p_{T} (>3 GeV/c), protons exhibit larger v_{0}(p_{T}) than pions and kaons, in agreement with expectations from quark-recombination models. Comparisons to viscous hydrodynamic calculations with varying bulk viscosity and equation of state demonstrate the sensitivity of the v_{0}(p_{T}) observable to these key medium properties. The findings establish v_{0}(p_{T}) as a valuable addition to the set of observables used in Bayesian analyses for extracting the transport properties and constraining the equation of state of strongly interacting matter, while also helping to systematically explore its sensitivity and impact within such global studies.
    Citas (OpenAlex): 10
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Relación entre el nivel de conocimiento, actitud y práctica sobre micronutrientes en puérperas atendidas en el Centro Materno Infantil Miguel Grau - Lima
    (2020-03-26)
    Suely Beth Guio Broncano
    ;
    Mery Rodríguez Vásquez  
    El presente artículo analiza la relación entre conocimiento, actitud y práctica sobre micronutrientes en puérperas atendidas en el Centro Materno Infantil “Miguel Grau,” Lima. Su enfoque es cuantitativo, de diseño correlacional, no experimental, de corte transversal retrospectivo y de tipo descriptivo. La muestra (120 puérperas) se seleccionó mediante un muestreo no probabilístico de tipo intencional, según criterios de inclusión y exclusión. Como resultado, el nivel de conocimiento de las puérperas sobre el consumo de micronutrientes, fue “regular” con un 81.7%. La actitud de las puérperas con respecto a su consumo de micronutrientes fue “favorable,” con un 87.5%,—dato corroborado en investigaciones similares. La práctica de las puérperas con respecto al consumo de micronutrientes, fue “inadecuada” en la totalidad de la muestra, hallando mayor falencia en el consumo diario de alimentos lácteos. Por otra parte, existe relación estadísticamente significativa entre el conocimiento y la actitud de las puérperas sobre el consumo de micronutrientes, vía el Rho de Spearman de 0.001 (p &lt; 0.05). Sin embargo, no se encontró relación estadísticamente significativa entre el conocimiento y la práctica, ni entre la actitud y la práctica de las puérperas sobre el consumo de micronutrientes, según un análisis de Rho de Spearman de 0.173 y 0.656 (p &lt; 0.05) respectivamente, lo que podría tener relación con la información insuficiente, estado civil, así como las creencias y mitos que la puérpera posea.
    Citas (OpenAlex): 0metric-badges.view 2
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Physician experiences with clinical uncertainty in the trauma setting: making clinical guidance accessible to those in need
    (2026-01-01)
    Anika Srinath  
    ;
    E J Lee
    ;
    Gianni Aragon
    ;
    Giuliano Borda‐Luque
    ;
    Gabriela Zavala Wong
    Introduction: Globally, trauma patients suffer from high rates of preventable deaths, in part driven by low rates of access to and application of resource-relevant evidence-informed clinical guidance. This mixed-methods study assessed the accessibility (barriers to attempting to use guidance), clarity (ease of comprehension), utility (based on resources and time), and implementation of trauma guidance for Peruvian injury providers. Methods: Semistructured qualitative interviews were conducted in Spanish at three hospitals in Lima, Peru. Interviews were analyzed in Dedoose V.9.1.12 using an iteratively developed codebook; quantitative self-administered surveys were then developed and distributed at the Pan American Trauma Society Conference. Surveys were analyzed using descriptive statistics and frequencies. Results: 38 interviews and 83 surveys were conducted with surgical attendings, emergency physicians, and surgical and emergency residents across all years of training. Access barriers included paywalls, language barriers, low user-friendliness, and technology limits (poor internet, few computers). A mobile app and portable physical guidance are preferred potential solutions. Utility barriers included low equipment maintenance and high patient volumes. Resource-based guidance, conciseness (eg, flowcharts), and standardization are perceived to potentially increase utility. Implementation barriers included limited training time, reliance on more experienced colleagues rather than guidance, low enforcement, and low funding. Potential facilitators are increased administrative support and staff willingness to use guidance improving patient mortality, clinical errors, and length of stay. No barriers to clarity were reported. Conclusion: Barriers to using clinical guidance included low user-friendliness, low local applicability, and an unsupportive culture. Mobile apps, resource stratification, and administrative involvement are priorities to address these needs. Trauma guidance adapted to local realities may reduce preventable deaths in acute care. Further work is needed to identify how to create and distribute updated clinical guidance to better serve trauma providers worldwide. Level of evidence: Economic and Value-based Evaluations Level 2.
    Citas (OpenAlex): 1metric-badges.view 1
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Search for Quasiparticle Scattering in the Quark-Gluon Plasma with Jet Splittings in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:math> and Pb-Pb Collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi>NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>5.02</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:mrow></mml:math>
    (2025-07-16)
    S. Acharya  
    ;
    A. Agarwal
    ;
    G. Aglieri Rinella
    ;
    Luca Aglietta
    ;
    M. Agnello
    The ALICE Collaboration reports measurements of the large relative transverse momentum (k_{T}) component of jet substructure in pp and Pb-Pb collisions at center-of-mass energy per nucleon pair sqrt[s_{NN}]=5.02 TeV. Enhancement in the yield of such large-k_{T} emissions in head-on Pb-Pb collisions is predicted to arise from partonic scattering with quasiparticles of the quark-gluon plasma. The analysis utilizes charged-particle jets reconstructed by the anti-k_{T} algorithm with resolution parameter R=0.2 in the transverse-momentum interval 60<p_{T,ch,jet}<80 GeV/c. The soft drop and dynamical grooming algorithms are used to identify high transverse momentum splittings in the jet shower. Comparison of measurements in Pb-Pb and pp collisions shows medium-induced narrowing, corresponding to yield suppression of high-k_{T} splittings, in contrast to the expectation of yield enhancement due to quasiparticle scattering. The measurements are compared to theoretical model calculations incorporating jet modification due to jet-medium interactions ("jet quenching"), both with and without quasiparticle scattering effects. These measurements provide new insight into the underlying mechanisms and theoretical modeling of jet quenching.
    Citas (OpenAlex): 5metric-badges.view 4
  • Publicacion
    Algunas métricas están bloqueadas por su 
    configuración de consentimiento
    Item type:Publicación,
    Nutrition and education. III. Educational achievement and food habits of Chilean elementary and high school graduates.
    (1992-03-01)
    Daniza Ivanovic
    ;
    Mery Rodríguez Vásquez  
    ;
    M Aguayo
    ;
    D Ballester
    ;
    Macarena Marambio
    The objective of this study was to correlate the educational achievement (EA) of Chilean elementary and high-school graduates with their food habits. For this purpose, a random sample of 550 schoolers from the Metropolitan Area of Santiago, Chile, graduating from elementary and high school (1:1) of both sexes (1:1), from public and private schools and from high, medium and low socioeconomic status (SES) (1:1:1), was selected. Food habits were determined through a specially designed questionnaire and defined as the frequency of consumption of the food groups, expressed as days per week. The EA was established through the Achievement Evaluation Program (AEP) and Academic Aptitude Test (AAT) in elementary-and high-school graduates-, respectively. Results revealed that EA was found significantly and positively correlated with the frequency of consumption of dairy products, meat products and eggs, in both elementary and high school graduates. A significant and inverse correlation between EA and the frequency of vegetables and fruits consumption was observed in both educational levels, and with miscellaneous products, only in elementary school graduates. Food habits explained 24.4% and 16.6% of the EA variance, in elementary and high school graduates, respectively. The frequency of consumption of dairy products was the independent variable with the greatest explanatory power in EA variance (approximately above 70% of the explained variance). These results are important to consider for educational planning focused on the School Feeding Program.
    Citas (OpenAlex): 9