Jose Isaac Zablah

Prof. Dr. Jose Isaac Zablah

orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2015
Verified
Conference Paper
Closed access
FGF. Gomez-Folgar
F. Gomez-Folgar
Universidade de Garcia-LoureiroUniversidade de Garcia-Loureiro
Universidade de Garcia-Loureiro
TPTomás F. Pena
Tomás F. Pena
JZJose Isaac Zablah
Jose Isaac Zablah
Natalia SeoaneNatalia Seoane
Natalia Seoane
Nowadays, there are several open-source solutions for building private, public and even hybrid clouds such as Eucalyptus, Apache Cloud Stack and Open Stack. KVM is one of the supported hypervisors for these cloud platforms. Different KVM configurations are being supplied by these platforms and, in some cases, a subset of CPU features are being presented to guest systems, providing a basic abstraction of the underlying CPU. One of the reasons for limiting the features of the Virtual CPU is to guarantee the guest compatibility with different hardware in heterogeneous environments. However, in a large number of situations, the cloud is deployed on an homogeneous set of hosts. In these cases, this limitation can affect the performance of applications being executed in guest systems. In this paper, we have analyzed the architecture, the KVM setup, and the performance of the Virtual Machines deployed by three popular cloud management platforms: Eucalyptus, Apache Cloud Stack and Open Stack, employing a representative set of applications.

1 December 2025 in Forensic Sciences
Verified
Journal Article
Open access
PDF file
AZAntonieta Zuniga
Antonieta Zuniga
YMYolly Molina
Yolly Molina
KAKaren Amaya
Karen Amaya
ZLZintia Moya Lanza
Zintia Moya Lanza
PSPatricia Soriano
Patricia Soriano
JZJose Isaac Zablah
Jose Isaac Zablah
Background: The Tawahka ethnic group, with approximately 2690 individuals in northeastern Honduras, represents one of the country’s smallest indigenous communities. No genetic studies have been published on this population, and population-specific databases are essential for forensic applications. Methods: Allele frequencies for 23 autosomal short tandem repeats (STRs) loci were analyzed in 100 unrelated Tawahka individuals (61 females, 39 males) from the municipality of Wampusirpi. Deoxyribonucleic acid (DNA) was extracted from blood on Fast Technology for Analysis of nucleic acids (FTA) cards and amplified using the PowerPlex Fusion 6C System. Statistical parameters were calculated using Genepop v4.2 and Arlequin v5.3.2.2. Results: All loci showed substantial polymorphism with no Hardy–Weinberg equilibrium deviations after Bonferroni correction (α = 0.0022). Expected heterozygosity ranged from 0.4968 to 0.8812. Combined power of discrimination was 99.9999% and combined chance of exclusion was 99.99%. Conclusions: This first genetic characterization of the Tawahka population provides essential reference data for forensic identification, paternity testing, and population genetics studies. The dataset contributes to understanding indigenous Central American genetic diversity and ensures accurate forensic analyses for individuals of Tawahka ancestry following Combined DNA Index System (CODIS) and European Standard Set (ESS) standards.

1 August 2014
Verified
Conference Paper
Closed access
FFFernando Gomez Folgar
Fernando Gomez Folgar
ALAntonio Garcia Loureiro
Antonio Garcia Loureiro
TPTomás F. Pena
Tomás F. Pena
JZJose Isaac Zablah
Jose Isaac Zablah
Natalia SeoaneNatalia Seoane
Natalia Seoane
The default KVM setup included in Open Nebula, Eucalyptus and Apache Cloud Stack could not perform well enough under certain circumstances, because it does not expose to the guest VMs some of the features included in the modern processors. In order to tune up the cloud platform for obtaining a better CPU performance for the virtualized software executed under the KVM hyper visor, we have proposed and tested an alternative KVM setup in Apache Cloud Stack. The setup provided could also be applied to other cloud platforms.

31 March 2026 in Genes
Verified
Journal Article
Open access
PDF file
AZAntonieta Zuniga
Antonieta Zuniga
YMYolly Molina
Yolly Molina
KAKaren Amaya
Karen Amaya
ZLZintia Moya Lanza
Zintia Moya Lanza
PSPatricia Soriano
Patricia Soriano
JZJose Isaac Zablah
Jose Isaac Zablah
Background: The Garifunas are a distinctive Afro-indigenous community of Honduras, originating from the historical admixture of Island Carib, Arawak, and West African peoples in the seventeenth-century Caribbean. With an estimated 43,111 individuals residing primarily along the northern Atlantic coast. Their dual ancestral composition yields a genetic profile that differs meaningfully from those of other Honduran reference populations, consistent with pairwise FST comparisons with previously published Lenca and Tawahka datasets generated on the identical platform; yet no population-specific short tandem repeat (STR) reference dataset had previously been established. Methods: We genotyped 23 autosomal STR loci using the PowerPlex Fusion 6C System (Promega Corporation) in 100 unrelated Garifuna individuals (70 females, 30 males) sampled from three coastal settlements in the department of Atlántida: Triunfo de la Cruz, Ensenada, and Corozal. DNA was extracted from blood collected on FTA cards, and statistical parameters were computed using Genepop v4.2 and Arlequin v5.3.2.2. Results: A total of 217 distinct alleles were identified, with 5 to 19 alleles per locus (mean 9.43 ± 3.54). Expected heterozygosity (He) ranged from 0.6392 (D13S317) to 0.9010 (SE33), with a population mean of 0.7893. No locus deviated from Hardy–Weinberg equilibrium after Bonferroni correction (α = 0.0022). The combined random match probability was approximately 1.9 × 10−26, and the combined chance of exclusion reached 99.99999993%. Conclusions: This study provides the first Honduran Garifuna population-specific autosomal STR reference database for precise forensic likelihood ratio estimates, kinship assessments, and population genetic studies. The Garifuna’s high diversity—consistent with their West African and Amerindian ancestry—indicates the risk of systematic bias when non-specific databases are used.

1 April 2026 in Genes
Verified
Journal Article
Open access
PDF file
AZAntonieta Zuniga
Antonieta Zuniga
YMYolly Molina
Yolly Molina
KAKaren Amaya
Karen Amaya
ZLZintia Moya Lanza
Zintia Moya Lanza
PSPatricia Soriano
Patricia Soriano
JZJose Isaac Zablah
Jose Isaac Zablah
Background: The Pech ethnic group, comprising approximately 6024 individuals in northeastern Honduras, represents one of the country’s smallest indigenous communities with a rich cultural heritage extending to pre-Columbian times. Despite their historical significance, no population genetic studies have been conducted on this group, and population-specific databases are essential for accurate forensic applications. Methods: Allele frequencies for 23 autosomal short tandem repeat (STR) loci were determined in 100 unrelated Pech individuals (58 females, 42 males) from communities in the departments of Olancho, Colón, and Gracias a Dios. DNA was extracted from blood samples collected on FTA cards and amplified using the PowerPlex Fusion 6C System. Statistical parameters were calculated using Genepop v4.2 and Arlequin v5.3.2.2. Results: All loci exhibited substantial polymorphism. No statistically significant deviations from Hardy–Weinberg equilibrium were detected after Bonferroni correction (α = 0.0022). Expected heterozygosity ranged from 0.4033 (TH01) to 0.8563 (FGA). The combined power of discrimination exceeded 99.9999%, and the combined chance of exclusion was 99.9999%. Conclusions: This study presents the first genetic characterization of the Pech population, providing essential reference data for forensic identification, paternity testing, and population genetics research. The dataset fills a critical gap in the Honduran forensic genetic infrastructure and contributes to understanding indigenous Central American genetic diversity, enabling accurate forensic analyses for individuals of Pech ancestry in compliance with CODIS and ESS standards.

1 January 2026 in Diagnostics
Verified
Journal Article
Open access
PDF file
JZJose Isaac Zablah
Jose Isaac Zablah
CACarlos Agudelo-Santos
Carlos Agudelo-Santos
YMYolly Molina
Yolly Molina
MAMarcio Omar Madrid Alvarado
Marcio Omar Madrid Alvarado
AZArnoldo Zelaya
Arnoldo Zelaya
Universidade de Garcia-LoureiroUniversidade de Garcia-Loureiro
Universidade de Garcia-Loureiro
Background/Objectives: In low-resource settings, diagnostic delays and limited specialist access worsen health inequalities, making hypertensive disorders of pregnancy (HDPs) defined by new-onset blood pressure ≥ 140/90 mmHg after 20 weeks of gestation, with or without proteinuria, a major cause of maternal morbidity and mortality. This study evaluated the diagnostic effectiveness of a rural-applicable clinical model for detecting HDPs in a real-world population from Hospital General San Felipe (Tegucigalpa, Honduras). Methods: A cross-sectional diagnostic accuracy study was conducted on 147 consecutive pregnant women in February 2025. Clinical documentation from the initial appointment defined HDP. We modeled HDP risk using penalized logistic regression and common factors such maternal age, gestational age, blood pressure, BMI, primary symptoms, semi-quantitative proteinuria, and medical history. Median imputation was utilized for missing numbers and stratified five-fold cross-validation assessed performance. We assessed AUROC, AUPRC, Brier score, calibration, and operational utility at a data-driven threshold. Results: Of patients, 27.9% (41/147) had HDP. The model had an AUROC of 0.614, AUPRC of 0.461 (cross-validation averages), and Brier score of 0.253. The threshold with the highest F1-score (0.474) had a sensitivity of 0.561, specificity of 0.679, positive predictive value of 0.404, and negative predictive value of 0.800. HDP had higher meaning systolic/diastolic/mean arterial pressure (130.7/82.9/98.9 vs. 120.5/76.1/90.9 mmHg) and ordinal proteinuria (0.59 vs. 0.36 units). Conclusions: The model had moderate but clinically meaningful discriminative performance using low-cost, commonly obtained variables, excellent calibration, and a good negative predictive value for first exclusion. These findings suggest modification of predictors, a larger sample size, and clinical usefulness assessment using decision curves and process outcomes, including quick referral and prophylaxis. This approach aligns with contemporary developments in the 2023–2025 European Society of Cardiology (ESC) and 2024 American Heart Association (AHA) guidelines, which emphasize earlier identification and risk-stratified management of hypertensive disorders during pregnancy as a cornerstone of women’s cardiovascular health.