Search results for: P. Mayorga
article
Ralph Eric Thijl Vanstreels,
Daniela de Angeli Dutra,
Francisco C. Ferreira-Junior,
Renata Hurtado,
more
Parasitology Research > 2019 > 118 > 12 > 3497-3508
Avian malaria is a mosquito-borne disease caused by Plasmodium spp. protozoa, and penguins are considered particularly susceptible to this disease, developing rapid outbreaks with potentially high mortality. We report on an outbreak of avian malaria in Magellanic penguins (Spheniscus magellanicus) at a rehabilitation center in Espírito Santo, southeast Brazil. In August and September 2015, a total...
article
SN Applied Sciences > 2019 > 1 > 10 > 1-7
Biocomposites based on potato starch and reinforced with chestnut husks, a lignocellulosic agroforestry waste, were developed by incorporating 2.5 wt%, 5 wt% and 7.5 wt% of chestnut husks via an extrusion molding procedure. The effect of the filler on the morphology and thermos-mechanical properties were studied by scanning electron microscopy (SEM), infrared spectroscopy (FTIR) and dynamic mechanical...
article
Chemistry – A European Journal > 23 > 65 > 16593 - 16604
Evidence for the surprising formation of polymeric phases under high pressure for conjugated nanohoop molecules was found. This paper represents one of the unique cases, in which the molecular‐level effects of pressure in crystalline organic solids is addressed, and provides a general approach based on vibrational Raman spectroscopy combining experiments and computations. In particular, we studied...
article
chapter
Alzheimer's disease poses an irreversible, progressive brain disorder. It destroys affected person's memory, thinking skills, behavior and eventually the ability to carry out the simplest tasks. First symptoms of Alzheimer's disease typically appear in people being in their mid-sixties. In preclinical stage of Alzheimer's disease, when a person has no apparent symptoms, toxic type changes can be noticed...
chapter
Varicella-zoster virus causes chickenpox, a very contagious disease manifested by rash, itching, tiredness, and fever. The affected individual gets stomach, back and face covered with blister-like rash that often spreads over the entire body resulting in 250 or even 500 itchy blisters. Babies, adults, and people with weakened immune systems can be seriously affected by chickenpox. As a part of this...
chapter
Assessment of lung sounds (LS) and documentation of their characteristics is a part of routine pulmonary diagnostic procedures. Peculiar acoustic components associated with inspiratory and/or expiratory phases of respiration such as for example asthmatic wheezes serve as useful diagnostic indicators. Supplementing manual auscultation with automatic detection and categorization methods provides opportunities...
chapter
Thoracic auscultatory signs are commonly evaluated as a part of standard diagnostic procedures which might be focused on cardiac (HS) or pulmonary (LS) origin indicators depending on evaluator's aims. However, due similarities of these sounds spectral components and their extremely small intensity especially in the presence of common external noise, a separation of their origin components can be difficult...
chapter
Obesity or adiposity is a major global health problem. Adipose tissue has been subdivided into two types: white adipose tissue (WAT) that stores energy, and brown adipose tissue (BAT) that functions to dissipate energy in the form of heat. BAT plays a particularly important role in newborns, which use this tissue to defend themselves against cold. However, using glucose tracer, it has been independently...
chapter
The acoustic signatures reflecting cardiopulmonary system operation contain complex but quantifiable essential diagnostic signs. Overall, these indicators encompass inspiratory and expiratory lung sounds, S1, S2, and other heart sounds with embedded peculiar signals of diverse disease conditions. Therefore, different pattern recognition techniques including among them Gaussian Mixed Models (GMM) and...
article
Edwin Javier Romero Gonzalez,
José L. Marenco Jiménez,
Maria P. Mayorga Pineda,
Alfonso Martínez Morán,
more
Urology Case Reports > 2015 > 3 > 3 > 63-64
In tumors of the penis, mesenchymal tumors are extremely rare and within them, sarcomas are exceptional. We report a patient with a sarcomatous lesion treated with conservative surgery with good surgical outcome and the review of the literature, to present the latest advances in the treatment of this unusual entity.
chapter
This paper presents a methodology for optimized utilization of merged Hidden Markov Models and Mixed Gaussian Model to classify lung sounds (LS) and heart sounds (HS) as a part of cardiopulmonary diagnostic assessment. Specifically this method was used as a criterion to determine most advantageous number of clusters for the HMMGMM model calculation. For this purpose, the LS and HS characteristics...
chapter
Melanoma represents one of most malignant tumors associated with melanocytes in pigmented cells of the skin and in particular is a result of malignant transformation of melanocytes. Due to migration of neural cell crest, melanoma can develop not only on skin, but on oral and genital mucosa, and also gastrointestinal tract and brain. Melanoma is usually present and manifests itself with changes in...
chapter
Numerous studies including annual reports by Blacksmith Institute clearly document the magnitude of regional pollution and associated health risks. In particular the air pollution encompassing PM10 and smaller particles significantly contributes to the prevalence of respiratory diseases. Specifically, the city of Mexicali with a PM10 ranking of 137 in 2010 is considered as the most polluted city in...
chapter
Pollution and associated negative impacts on human health is one of the major concerns of the World Health Organization and healthcare providers. Current interests focus on particles suspended in air known as PM10 which significantly contribute to increased prevalence of heart disease. Specifically, the city of Mexicali was found to be one of the most polluted cities of Mexico in 2010. Cardiovascular...
chapter
Globally increasing rate of cardiovascular diseases represents one of the primary health care challenges and necessitates broader population screening for earlier intervention. Present cardiovascular function assessment techniques encompass a broad range of diagnostic tools which in most cases involve high and mid level cost instrumentation. They include among others instrumentation as a part of nuclear...
chapter
The MRI or CT scan images are primary follow up diagnostic tools when a neurologic exam indicates a possibility of a primary or metastatic brain tumor existence. The tumor tissue mainly appears in brighter colors than the rest of the regions in the brain. Based on this observation, an automated algorithm for brain tumor detection and medical doctors' assistance in facilitated and accelerated diagnosis...
article
European Journal of Pharmaceutical Sciences > 2014 > 51 > Complete > 20-25
This work aimed to evaluate the effect of different substances on the permeation of geraniol through bovine hoof membranes. Different penetration enhancers were able to increase the permeability up to 25 times compared to control. It was demonstrated that acetilcysteine in association with ascorbic acid increased the permeation, even in acid formulations. In addition, some antifungal drugs were incorporated...
chapter
Cardiovascular diseases encompassing coronary artery disease, hypertension, cardiomyopathy, cardiac stenosis, arrhythmia, and other are often accompanied by peculiar acoustic events which can be reflected in auscultatory observations and recordings. A quantitative documentation of these events may add in diagnostic assessment of patient conditions and complement monitoring of the therapeutic process...
chapter
Epilepsy poses a significant burden to society due to associated healthcare costs to treat and control the unpredictable and spontaneous occurrence of seizures. There is a need for a quick screening process that could help neurologists diagnose and determine the patient's treatment. Electroencephalogram has been traditionally used to diagnose patients by evaluating brain functions that might correspond...
