Héctor Ramírez
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View article: Process evaluation and lessons learned from the formation of a multi-sector partnership: the Healing Experiences of Adversity among Latinos (HEALthy4You)
Process evaluation and lessons learned from the formation of a multi-sector partnership: the Healing Experiences of Adversity among Latinos (HEALthy4You) Open
The Healing Experiences of Adversity Among Latinos (HEALthy4You; H4Y) study was a multi-sector partnership between an academic research institution, a Federally Qualified Health Center (FQHC), and a multi-sector collective impact coalition…
A Case of Prolonged Fever in a Patient Infected With COVID-19 on Ofatumumab Open
We discuss a case of a 53-year-old woman with multiple sclerosis on monthly ofatumumab injections, who was infected with SARS-CoV-2 with persistent fevers for seven weeks. She was hospitalized for fever with diagnostic workup being unremar…
View article: Modelling Cost-Effectiveness of Syphilis Detection Strategies in Prisoners: Exploratory Exercise in a Chilean Male Prison
Modelling Cost-Effectiveness of Syphilis Detection Strategies in Prisoners: Exploratory Exercise in a Chilean Male Prison Open
BACKGROUND: Syphilis, together with other sexually transmitted infections, remains a global public health problem that is far from controlled. People deprived of liberty are a vulnerable population. Control activities in prisons rely mostl…
View article: Modelling Cost-Effectiveness of Syphilis Detection Strategies in Prisoners: Exploratory Exercise in a Chilean Male Prison
Modelling Cost-Effectiveness of Syphilis Detection Strategies in Prisoners: Exploratory Exercise in a Chilean Male Prison Open
BACKGROUND: Syphilis, together with other sexually transmitted infections, remains a global public health problem that is far from being controlled. People deprived of liberty are one of the vulnerable population. Control activities in pri…
View article: Modelling Cost-Effectiveness Of Syphilis Detection Strategies In Prisoners: Exploratory Exercise In A Chilean Male Prison
Modelling Cost-Effectiveness Of Syphilis Detection Strategies In Prisoners: Exploratory Exercise In A Chilean Male Prison Open
BACKGROUND: Syphilis, together with other sexually transmitted infections, remains a global public health problem that is far from being controlled. People deprived of liberty are one of the vulnerable population. Control activities in pri…
On constant rank constraint qualifications for second-order cone programming Open
The constant rank constraint qualification introduced by Janin in 1984 for nonlinear programming has been extensively used for sensitivity analysis, global convergence of first- and second-order algorithms, and for computing the derivative…
Naive constant rank-type constraint qualifications for multifold second-order cone programming and semidefinite programming Open
The constant rank constraint qualification, introduced by Janin in 1984 for nonlinear programming, has been extensively used for sensitivity analysis, global convergence of first- and second-order algorithms, and for computing the derivati…
Modelling Cost-Effectiveness of Syphilis Detection Strategies In Prisoners: Exploratory Exercise In A Chilean Male Prison Open
BACKGROUND: Syphilis, together with other sexually transmitted infections, remains a global public health problem that is far from being controlled. People deprived of liberty are one of the vulnerable population. Control activities in pri…
The role of uncertainty in the design of sustainable and precautionary management strategies for fisheries Open
Environmental variability has a strong influence on marine fish stocks. Thus, management and harvest policies based on deterministic indicators, such as maximum sustainable yield (MSY), may be inappropriate facing such uncertainties. In th…
Catch‐to‐stock dependence: The case of small pelagic fishery with bounded harvesting effort Open
Biologic characteristics of schooling fish species explain why the rates of harvesting in pelagic fisheries are not proportional to the existent stock size and may exhibit no variation between the periods of fish abundance and scarcity. Th…
An Optimization Model To Incorporate CO<sub>2</sub> Emissions in the Scheduling of Crude Oil Operations Open
In previous works CO2 emissions in oil refineries have been studied for production unit planning. In this manuscript the associated CO2 mitigation costs are added to the scheduling of crude oil unloading and blending. Numerical simulations…
Refining the partition for multifold conic optimization problems Open
In this paper we give a unified treatment of two different definitions of complementarity partition of multifold conic programs introduced independently in [J. F. Bonnans and H. Ramírez C., Math. Program. 104 (2005), no. 2-3, Ser. B, 205--…
Productivity optimization of microalgae cultivation in a batch photobioreactor process Open
We address the question of mean biomass volumetric productivity optimization, which originates from the simplification of dynamics of microalgae in a batch bioreactor process with light incidence. In particular, the stability of the model …
Guaranteed value strategy for the optimal control of biogas production in continuous bio-reactors Open
In this work, we revisit a problem of optimal control for the maximisation of biogas production in a continuous bioreactor, for which the analytical determination of the optimal synthesis is an open problem. We consider two kinds of growth…
Equivalence of Finite Dimensional Input–Output Models of Solute Transport and Diffusion in Geosciences Open
We show that for a large class of finite dimensional input-output positive systems that represent networks of transport and diffusion of solute in geological media, there exist equivalent multi-rate mass transfer and multiple interacting c…
Optimal Feedback Synthesis and Minimal Time Function for the Bioremediation of Water Resources with Two Patches Open
This paper studies the bioremediation, in minimal time, of a water resource\nor reservoir using a single continuous bioreactor. The bioreactor is connected\nto two pumps, at different locations in the reservoir, that pump polluted water\na…