Publications by authors named "Luis Abreu"

Article Synopsis
  • Latin American cities face serious air pollution challenges, with PM2.5 particulates posing significant risks to human health and ecosystems.
  • A year-long monitoring campaign in six major cities revealed notable differences in PM2.5 levels and sources, highlighting the contribution of traffic emissions, biomass burning, and secondary organic aerosols.
  • The study suggests enhanced methodologies for source attribution, emphasizing the need for a comprehensive approach to tackle air quality issues effectively.
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Many important personal goals, such as health, career, finances, and social relationships, entail repeatedly performing the same (or similar) actions over time (e.g., to exercise daily or save money weekly).

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Spontaneous intracranial hypotension is a condition resulting from cerebrospinal fluid leaks at the spinal level that disrupt the regulation of intracranial pressure. This disorder is an uncommon cause of debilitating headaches but can have variable clinical manifestations, which contributes to delayed diagnosis and potentially severe consequences. The standard treatment consists of conservative measures such as bed rest, hydration, and a pharmacological approach with paracetamol, caffeine, ergotamine, and dexamethasone.

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We show that, for a class of planar determinantal point processes (DPP) , the growth of the entanglement entropy of on a compact region , is related to the variance as follows: Therefore, such DPPs satisfy an , where is the boundary of if they are of (), while the if they are of (as , ). As a result, the entanglement entropy of Weyl-Heisenberg ensembles (a family of DPPs containing the Ginibre ensemble and Ginibre-type ensembles in higher Landau levels), satisfies an area law, as a consequence of its hyperuniformity.

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This paper presents a qualitative analysis of transportation system changes that occurred in New York City (NYC) from the beginning of the COVID-19 pandemic until the city began its first phase of reopening in June 2020. The study was conducted by tracking publicly available transportation-related news articles and publications, 1) to capture key issues and challenges and 2) to identify changes in policies, services, and infrastructure that occurred in response across five passenger transportation modes: public transit; taxis; ridesharing; personal driving; and cycling and micromobility. Results were assessed to identify common issues and interactions between modes.

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Energy cane is a dedicated crop to high biomass production and selected during Saccharum breeding programs to fit specific industrial needs for 2G bioethanol production. Internode elongation is one of the most important characteristics in Saccharum hybrids due to its relationship with crop yield. In this study, we selected the third internode elongation of the energy cane.

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Commercial cultivation of sugarcane is usually carried out by planting culm segments (sett) carrying buds in their internodes. However, this is an inefficient practice due to high sprouting irregularity. In this work, we inspect the first stages of the physiological preparation of the culm for sprouting, trying to identify compounds that actively participate in this process.

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The thalamocortical network appears to play a pivotal role in ictogenesis. We herein present three cases of non-convulsive status epilepticus (SE), in adult patients without previous history of epilepsy or seizures, precipitated by acute thalamic vascular and metabolic-induced lesions. In all cases the EEG showed patterns consistent with generalized SE confirmed either by a fast and complete clinical and EEG response to anti-seizure medication or definitive subtle motor signs consistent with SE.

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Behçet's disease is a chronic relapsing multisystem autoinflammatory condition, in which cardiac involvement is rare, but among the most life-threatening complications. Treatment is largely empirical, and is aimed at suppressing vasculitis. In this role glucocorticoids and colchicine are frequently used.

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Health care professionals often participate in short-term surgical missions in underserved areas of the world. Surgical missions often rely on the use of medications to provide health care to these underserved areas in patients with multiple comorbid conditions. The direct role a pharmacist may have in surgical missions is not well described in the literature; however, numerous opportunities exist for pharmacist involvement to improve patient care and operational processes throughout medication planning and delivery of surgical missions.

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Introduction: Emergency medical system transportation has been shown to reduce treatment times in ST-segment elevation myocardial infarction. The authors studied the Portuguese National Registry of Acute Coronary Syndromes to determine the nationwide impact of the emergency medical system transportation in the treatment of ST-segment elevation myocardial infarction.

Material And Methods: A multicentric, nationwide, retrospective study of ST-segment elevation myocardial infarction patients inserted in the National Registry from 2010 to 2017 was performed.

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The diagnosis of functional neurological disorder (FND) relies on the demonstration of positive symptoms and signs, as supported by recent changes in DSM5. We recorded the findings of routine clinical eye movement assessment in 101 consecutive new patients with FND. Clinical examination triggered facial and eye movement disorders in 46% of patients, all with positive characteristics of functional movement disorder.

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Background: Multiple risk scores (RS) are approved in the prediction of worse prognosis in acute coronary syndromes (ACS). Recently, the Portuguese Journal of Cardiology has proposed the ProACS RS.

Objective: Application of several validated RS, as well as ProACS in patients, admitted for ACS.

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Weyl-Heisenberg ensembles are translation-invariant determinantal point processes on associated with the Schrödinger representation of the Heisenberg group, and include as examples the Ginibre ensemble and the polyanalytic ensembles, which model the higher Landau levels in physics. We introduce finite versions of the Weyl-Heisenberg ensembles and show that they behave analogously to the finite Ginibre ensembles. More specifically, guided by the observation that the Ginibre ensemble with points is asymptotically close to the restriction of the infinite Ginibre ensemble to the disk of area , we define finite WH ensembles as adequate finite approximations of the restriction of infinite WH ensembles to a given domain .

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Functional (psychogenic) movement disorders are a subtype of functional neurological disorder, a common and disabling cause of neurological symptoms. Abnormal movement in people with functional movement disorders has specific characteristics (e.g.

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Metabolic composition is known to exert influence on several important agronomic traits, and metabolomics, which represents the chemical composition in a cell, has long been recognized as a powerful tool for bridging phenotype-genotype interactions. In this work, sixteen truly representative sugarcane Brazilian varieties were selected to explore the metabolic networks in buds and culms, the tissues involved in the vegetative propagation of this species. Due to the fact that bud sprouting is a key trait determining crop establishment in the field, the sprouting potential among the genotypes was evaluated.

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The output of metabolomics relies to a great extent upon the methods and instrumentation to identify, quantify, and access spatial information on as many metabolites as possible. However, the most modern machines and sophisticated tools for data analysis cannot compensate for inappropriate harvesting and/or sample preparation procedures that modify metabolic composition and can lead to erroneous interpretation of results. In addition, plant metabolism has a remarkable degree of complexity, and the number of identified compounds easily surpasses the number of samples in metabolomics analyses, increasing false discovery risk.

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Atrial myxoma is rare and can be completely asymptomatic. However, an untreated myxoma may result in catastrophic events. Diagnosis is usually suggested by echocardiography, and other imaging modalities can add important information.

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Pseudoaneurysm of the mitral-aortic intervalvular fibrosa (P-MAIVF) is a rare complication of infective endocarditis and trauma, particularly of aortic valve surgery. Clinical symptoms are usually unspecific and generally due to complications. Transesophageal echocardiography (TEE) is the most commonly used exam to diagnose P-MAIVF.

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Treatment with continuous infusion of intraduodenal (Duodopa®) levodopa / carbidopa is indicated in patients with advanced Parkinson's disease who have not responded to conventional treatment. We present here the case of a patient with this type of probe that debuted jejunitis. A distal phytobezoar was the main causal agent.

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