Computational Load Analysis of a Galileo OSNMA-Ready Receiver for ARM-Based Embedded Platforms.

Many GNSS applications have been experiencing some constantly growing needs in terms of security and reliability. To address some of them, both GPS and Galileo are proposing evolutions of their legacy civil signals, embedding features of authentication. This paper focuses on the Galileo Open Signal Navigation Message Authentication (OSNMA) and describes its implementation within a real-time software receiver for ARM-based embedded platforms. The innovative contributions of the paper include the software profiling analysis for the OSNMA add on, along with the comparison among performances obtained with different platforms. In addition, specific evaluations on the computational load of the whole receiver complete the analysis. The receiver used for the implementation belongs to the NGene receivers family-real-time fully-software GPS and Galileo receivers, tailored for different platforms and sharing the same core processing. In detail, the paper deals with the introduction of the OSNMA support inside the eNGene, the version of the receiver executable by ARM-based embedded platforms.

Collaborative Solutions for Interference Management in GNSS-Based Aircraft Navigation.

Nowadays, the Global Navigation Satellite Systems (GNSS) technology is not the primary means of navigation for civil aviation and Air Traffic Control, but its role is increasing. Consequently, the vulnerabilities of GNSSs to Radio Frequency Interference, including the dangerous intentional sources of interference (i.e., jamming and spoofing), raise concerns and special attention also in the aviation field. This panorama urges for figuring out effective solutions able to cope with GNSS interference and preserve safety of operations. In the frame of a Single European Sky Air traffic management Research (SESAR) Exploratory Research initiative, a novel, effective, and affordable concept of GNSS interference management for civil aviation has been developed. This new interference management concept is able to raise early warnings to the on-board navigation system about the detection of interfering signals and their classification, and then to estimate the Direction of Arrival (DoA) of the source of interference allowing the adoption of appropriate countermeasures against the individuated source. This paper describes the interference management concept and presents the on-field tests which allowed for assessing the reached level of performance and confirmed the applicability of this approach to the aviation applications.

BCR-ABL1 genomic DNA PCR response kinetics during first-line imatinib treatment of chronic myeloid leukemia.

Accurate quantification of minimal residual disease (MRD) during treatment of chronic myeloid leukemia (CML) guides clinical decisions. The conventional MRD method, RQ-PCR for BCR-ABL1 mRNA, reflects a composite of the number of circulating leukemic cells and the BCR-ABL1 transcripts per cell. BCR-ABL1 genomic DNA only reflects leukemic cell number. We used both methods in parallel to determine the relative contribution of the leukemic cell number to molecular response. BCR-ABL1 DNA PCR and RQ-PCR were monitored up to 24 months in 516 paired samples from 59 newly-diagnosed patients treated with first-line imatinib in the TIDEL-II study. In the first three months of treatment, BCR-ABL1 mRNA values declined more rapidly than DNA. By six months, the two measures aligned closely. The expression of BCR-ABL1 mRNA was normalized to cell number to generate an expression ratio. The expression of e13a2 BCR-ABL1 was lower than that of e14a2 transcripts at multiple time points during treatment. BCR-ABL1 DNA was quantifiable in 48% of samples with undetectable BCR-ABL1 mRNA, resulting in MRD being quantifiable for an additional 5-18 months (median 12 months). These parallel studies show for the first time that the rapid decline in BCR-ABL1 mRNA over the first three months of treatment is due to a reduction in both cell number and transcript level per cell, whereas beyond three months, falling levels of BCR-ABL1 mRNA are proportional to the depletion of leukemic cells.

Silver In Situ Hybridization for the Rapid Assessment of MDM2 Amplification in Soft Tissue and Bone Tumors. Validation Based on an Audit of 192 Consecutive Cases Evaluated by Silver In Situ Hybridization and Fluorescence In Situ Hybridization.

The discovery of almost invariable mouse double minute 2 (MDM2) amplification among atypical lipomatous tumors (ALT)/well-differentiated liposarcoma and dedifferentiated liposarcoma is incorporated into the contemporary diagnostic workup of fatty lesions. MDM2 amplifications are also found frequently in intimal sarcomas and in low-grade osteogenic sarcoma. At present, fluorescence in situ hybridization (FISH) is the reference test for MDM2 assessment. We are interested in evaluating silver in situ hybridization (SISH) for this purpose. Between October 2016 and May 2020, in 192 consecutive cases requiring MDM2 FISH, SISH was also performed concurrently, including 77 (40.1%) core biopsies and 115 (58.9%) surgical specimens. The mean patient age was 61.0 years. SISH results were available overnight or within 48 hours if repeat testing was required. FISH results were available within 2 to 5 weeks. The cost of SISH was one third of FISH. FISH demonstrated MDM2 amplification in 44 cases (23.6%), was negative in 144 cases (74.4%) and nondiagnostic in 4 decalcified cases (2.0%). SISH showed MDM2 amplification in 33 cases (17.2%), no amplification in 119 cases (62.0%), and indeterminate results because of poor signal in 40 (20.8%) cases. All 33 (100%) SISH-amplified tumors and 113 of 119 (95.0%) nonamplified results were confirmed by FISH. There were no clear differences in the performance of SISH on NCB versus surgical specimens. The overall performance indices of SISH are sensitivity 75%, specificity 78.5%, positive predictive value 100%, and negative predictive value 95.8%. FISH is not required when SISH is clearly amplified. This is clinically useful and improves efficiency. Nonamplified SISH results provide early indications of the likely FISH findings, but there is a 4.2% chance of FISH being positive. At present, the main drawback of SISH is the high rate of nondiagnostic tests. Optimization of SISH signal detection to reduce the proportion of indeterminate results is our current focus.

RUNX1-mutated families show phenotype heterogeneity and a somatic mutation profile unique to germline predisposed AML.

First reported in 1999, germline runt-related transcription factor 1 (RUNX1) mutations are a well-established cause of familial platelet disorder with predisposition to myeloid malignancy (FPD-MM). We present the clinical phenotypes and genetic mutations detected in 10 novel RUNX1-mutated FPD-MM families. Genomic analyses on these families detected 2 partial gene deletions, 3 novel mutations, and 5 recurrent mutations as the germline RUNX1 alterations leading to FPD-MM. Combining genomic data from the families reported herein with aggregated published data sets resulted in 130 germline RUNX1 families, which allowed us to investigate whether specific germline mutation characteristics (type, location) could explain the large phenotypic heterogeneity between patients with familial platelet disorder and different HMs. Comparing the somatic mutational signatures between the available familial (n = 35) and published sporadic (n = 137) RUNX1-mutated AML patients showed enrichment for somatic mutations affecting the second RUNX1 allele and GATA2. Conversely, we observed a decreased number of somatic mutations affecting NRAS, SRSF2, and DNMT3A and the collective genes associated with CHIP and epigenetic regulation. This is the largest aggregation and analysis of germline RUNX1 mutations performed to date, providing a unique opportunity to examine the factors underlying phenotypic differences and disease progression from FPD to MM.

Pleural malignant mesothelioma versus pleuropulmonary synovial sarcoma: a clinicopathological study of 22 cases with molecular analysis and survival data.

The aim of this study was to carry out a comparative analysis by transducin-like enhancer of split 1 (TLE1) immunohistochemistry and molecular analysis of SYT-SSX, for 16 pleural predominantly sarcomatoid mesotheliomas and six cases of pleuropulmonary synovial sarcoma (five pleural in distribution only, with one case of a predominantly subpleural upper lobe synovial sarcoma), all of which were solely or predominantly monophasic. Our comparison included survival and some clinical data. We consider that the following points emerged from this study.

Cytoplasmic Immunoglobulin Light Chain Revelation and Interphase Fluorescence In Situ Hybridization in Myeloma.

The cytogenetic analysis of plasma cell myeloma (PCM) allows stratification of patients so that prognosis may be determined and appropriate therapeutic options can be discussed. Owing to the patchy nature of the disease in the bone marrow (BM), the low proliferative activity of plasma cells and the cryptic nature of some PCM-associated cytogenetic changes, karyotypic analysis in this disease should be augmented with targeted interphase fluorescence in situ hybridization (FISH). Immunofluorescent revelation of cytoplasmic immunoglobulin light chains, together with interphase FISH (cIg-FISH), allows the identification of plasma cells within a sample so that they may be scored preferentially. This is particularly useful in situations where there are only a small percentage of plasma cells in a sample. Where an underlying myeloid disease is suspected the cIg-FISH-negative cells can be scored separately. Two methods are provided in this chapter: the technique for cIg-FISH in fresh PCM BM samples and a procedure for use in fixed cytogenetics preparations.

Método de Misgav-Ladach para cesárea: reporte de un caso

Se presenta en una paciente la aplicación de la técnica de cesárea según el método del Hospital Misgav-Ladach de Jerusalem, en el cual se eliminan varios pasos que se siguen clásicamente como: separación de músculo con su aponeurosis, apertura del peritoneo con instrumentos cortantes, sutura del útero con dos planos y el cierre del peritoneo en capas, lo cual a más de excesiva injuria de tejidos y favorecer a la formación de adherencias post-quirúrgicas, disminuye el tiempo del procedimiento, de extracción fetal y de exposición de los tejidos con una óptima recuperación posterior, reduciéndose el dolor postoperatorio.

Uso de agonistas de los receptores opiáceos en anestesia epidural / Use of agonists opiate receptors in epidural anesthesia

A partir de 1981 se ha venido ensayando la administración de opiáceos epidurales e intratecales con bastante éxito según reportes de la literatura, con complicaciones mínimas y previsibles. Este es el motivo por el cual presentamos este estudio comparativo de dos grupos de 20 pacientes cada uno con clasificación ASA I y ASA II intervenidos de cirugías de hemiabdomen inferior en las especialidades de Cirugía General, Ginecología y Urología. En grupo I recibió una dosis de anestésico local + Buprenorfina 0,2-0,3mg por vía epidural y el grupo II recibió una dosis de anestesia y analgesia, necesidad mínima de drogas transoperatorias, complicaciones trans y postoperatorias manejables por el anestesiólogo; sin embargo, el grupo I tuvo una analgesia postoperatoria más prolongada que el grupo II sometidos a cirugía de hemi-abdomen inferior ofrecen seguridad en el procedimiento sobre todo con el uso de Buprenorfina cuyo efecto analgésico es más prolongado.

Epidural and intraspinal narcotics have been successfully used since 1981. Literature reports that potential complications are minimal and serious side effects are rare, for this reason we present the following comparative study between two narcotic drugs administered by epidural route and local anesthetics in order to produce surgical anesthesia. 40 classifed Physical state ASA I, ASA II patients were chosen and divided into two groups of 20 patients each one. They had elective lower abdominal surgery in Gynecology – Urology and General surgical areas. Both groups received a single dose of local anesthetic by epidural route. Group I was administered buprenorfine 0,2 – 0,3mg and group II was adicionally given Nalbufine 5mg. results showed that anesthesia and analgesia were excellent, other transoperatory drugs were not needed and the complications were handled by anesthesiologists in good performance; however, Group I had longer analgesia in potoperatory period than group II. We concluded that opiates administered by epidural route are safe and offer prolongued postoperatory pain relief specially with buprenorfine.

Incidencia de diabetes gestacional / Incidencia of gestacional diabetes

Tipo de estudio: clínico, observacional, descriptivo, tranversal. Objetivo: Determinar la incidencia de diabetes gestacional en la población gestante que acude a la consulta externa del Hospital Gineco-Obstétrico Enrique C. Sotomayor. Materiales y métodos: en una muestra de 250 pacientes que cursaban entre las 24 a 28 semanas de gestación se procedió a someterlas bajo consentimiento informado a un test de carga con 50g de glucosa utilizando un reflectómetro modelo Glucotrend con sus tiras reactivas, lancetas Surelet basic, azúcar blanca y agua. En aquellas que presentaron resultados anormales se practicó una prueba de tolerancia oral con 100g de glucosa para el diagnóstico de diabetes gestacional. Resultados: se obtuvo...