706 research outputs found

    Urban environments as refuge of bare-faced IBIS (Phimosus infuscatus) under water stress period

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    Se presentan registros del Cuervillo Cara Pelada (Phimosus infuscatus) en un núcleo turístico urbano de la provincia de Buenos Aires. Los individuos fueron identificados en sectores de jardines privados, bajo un régimen de riego anual. Las observaciones coincidieron con un período de déficit hídrico para la región. La existencia de este tipo de urbanizaciones podría favorecer también a otras especies bajo condiciones ambientales desfavorables. La presencia de especies como Phimosus infuscatus podrían ser consideradas como indicadores del estado de áreas con humedales y para información complementaria de sistemas de alerta temprana.Records of Bare-faced Ibis (Phimosus infuscatus) were taken in a coastal beach resort in Buenos Aires province. Individuals were identified in front garden areas, under a system of annual irrigation. Observations coincided with a water stress period in the region. This kind of urban settlement could also help other species under unfavorable environmental conditions. The presence of species such as Phimosus infuscatus could be considered as a biological indicator of wetland state and as data for developing early warning systems.Fil: Acosta, Tamara Hilén. Universidad de Buenos Aires. Facultad de Arquitectura, Diseño y Urbanismo. Centro de Investigaciones Gestión de Espacios Costeros; ArgentinaFil: Dadon, Jose Roberto. Universidad de Buenos Aires. Facultad de Arquitectura, Diseño y Urbanismo. Centro de Investigaciones Gestión de Espacios Costeros; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

    ASSOCIATION BETWEEN MAGNESIUM LEVELS AND THE SEVERITY OF ACNE VULGARIS

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    Introduction: Acne vulgaris is a cosmetic problem that often occurs in 80% of the population, especially reproductive age (12-25 years). Acne vulgaris is a chronic inflammatory disease of pilosebaceous follicles with multifactorial causes and clinical manifestations of blackheads, papules, pustules, nodules, and cysts. Magnesium plays a role in increasing skin hydration, increasing skin permeability, barrier repair, and facilitating skin proliferation and epidermal differentiation to reduce inflammation. Hypomagnesium is thought to increase inflammation and affect androgen hormones, especially testosterone, which plays a role in increasing the hyperactivity of the sebaceous glands in the pathogenesis of Acne Vulgaris.Purpose: To determine the difference in magnesium levels in each severity degree of acne vulgaris, namely mild, moderate, and severe.Method: This study is an analytic observational study with a cross-sectional design. The sampling technique is purposive sampling with a total sample of 30 people. Data retrieval in this study was carried out using photo taking of three sides of the face (front, right oblique, left oblique). Then proceed with a three cc venous blood draw to measure magnesium levels in the blood.Results: This study found a significant difference between magnesium levels and the severity of acne vulgaris with a value of p = 0.032 (p <0.05). Magnesium levels in severe acne vulgaris were higher than moderate and mild acne vulgaris. However, magnesium levels in all samples were still within the normal range. There was a moderate positive correlation between the two variables with a p-value = 0.016 (p <0.05).Conclusion: There was a significant difference between magnesium levels and the severity of acne vulgaris, and there is a moderate positive correlation between magnesium levels and the severity of acne vulgaris, which means that the higher the magnesium level, the more severe the degree of acne vulgaris

    Correlation Between Candida Albicans Colonization Growth And The Addition Of 5%, 10% And 40% Dextrose Level On Saboraud Dextrose Agar

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    Introduction : Candida albicans is normal flora that can be found on skin, oral mucosa and digestive tract. This organism are commensal or non pathogenic, but when there is other predisposition factor, this commensal tendency may become pathogenic to the human body. In Diabetes Mellitus patients with high blood sugar level can affect Candida Albicans infection events. Aim: The purpose of this research is to prove whether there is a correlation between Candida Albicans colonization growth and the addition of 5%, 10% and 40% Dextrose level on Saboraud Dextrose Agar (SDA). Method: This research is a true experimental research with post test only group design observed in 11 days. Samples are from 15 strains of Candida Albicans cultured in Saboraud Dextrose Agar without the addition of Dextrose, with the addition of Dextrose 5%, 10% and 40% in eleven days and the development were noted. The growth of Candida albicans is observed from the diameter growth. Result: in the culture of Candida albicans in 11 days. Data analysis using Kruskal Wallis with data signification (α = 0,05) obtained P 0,000 (

    Searching for new sources of innovative products for the food industry within halophyte aromatic plants: In vitro antioxidant activity and phenolic and mineral contents of infusions and decoctions of Crithmum maritimum L.

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    Aromatic halophyte plants are an outstanding source of bioactive compounds and natural products with potential use in the food industry. This work reports the in vitro antioxidant activity, toxicity, poly phenolic profile and mineral contents of infusions and decoctions from stems, leaves and flowers of Crithmum maritimum L, an aromatic and edible maritime halophyte (sea fennel). Aspalathus linearis (Burm.f.) Dahlg. (rooibos) herbal tea was used as a reference. Sea fennel's tisanes, particularly from leaves, were rich in phenolic compounds and five of them (p-hydroxybenzoic and ferulic acids, epicatechin, pyrocatechol and 4-hydroxybenzaldehyde) were here described in C maritimum for the first time. Chlorogenic acid was the dominant phenolic determined. Na was the most abundant mineral in all tisanes followed by Ca and Mg in leaves' tisanes and K in flowers. Sea fennel's samples had a similar antioxidant activity than those from A. linearis, and had no significant toxicity towards four different mammalian cell lines. Altogether, our results suggest that sea fennel can be a source of products and/or molecules for the food industry with antioxidant properties and minerals in the form, for example, of innovative health-promoting herbal beverages.FCT Investigator Programme [IF/00049/2012

    Endogenous opioid systems alterations in pain and opioid use disorder

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    Decades of research advances have established a central role for endogenous opioid systems in regulating reward processing, mood, motivation, learning and memory, gastrointestinal function, and pain relief. Endogenous opioid systems are present ubiquitously throughout the central and peripheral nervous system. They are composed of four families, namely the μ (MOPR), κ (KOPR), δ (DOPR), and nociceptin/orphanin FQ (NOPR) opioid receptors systems. These receptors signal through the action of their endogenous opioid peptides β-endorphins, dynorphins, enkephalins, and nociceptins, respectfully, to maintain homeostasis under normal physiological states. Due to their prominent role in pain regulation, exogenous opioids-primarily targeting the MOPR, have been historically used in medicine as analgesics, but their ability to produce euphoric effects also present high risks for abuse. The ability of pain and opioid use to perturb endogenous opioid system function, particularly within the central nervous system, may increase the likelihood of developing opioid use disorder (OUD). Today, the opioid crisis represents a major social, economic, and public health concern. In this review, we summarize the current state of the literature on the function, expression, pharmacology, and regulation of endogenous opioid systems in pain. Additionally, we discuss the adaptations in the endogenous opioid systems upon use of exogenous opioids which contribute to the development of OUD. Finally, we describe the intricate relationship between pain, endogenous opioid systems, and the proclivity for opioid misuse, as well as potential advances in generating safer and more efficient pain therapies

    La importancia de la prueba del polígrafo en la eficiente selección del talento humano.

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    La Selección de personal es un proceso vital para las organizaciones modernas, de esta forma contratar al candidato adecuado para cada cargo es un objetivo de la dependencia de talento humano encargada del proceso. Actualmente la aplicación del Polígrafo se ha convertido en un instrumento de apoyo para las actividades de reclutamiento de personal y su posterior asignación, mediada por la selección de personal que es el proceso donde se establecen los perfiles adecuados para el cargo y la pertinencia de los candidatos para ocuparlos. Así es, que la Psicofisiologia Forense bien utilizada, ya que mide el grado de certeza de los candidatos a un cargo determinado, permiten no solamente medir aspectos éticos entre los cuales se encuentra actuar con honestidad, sino además suministrar información altamente confiable que corrobore la idoneidad del entrevistado para ocupar el cargo, lo cual redundará en términos de eficiencia al tener a la persona adecuada en el puesto indicado. El proyecto mencionado busca aportar al desarrollo de los sistemas de selección en las organizaciones, pero además validar los valores del individuo desde la perspectiva de la transparencia y los valores morales, elementos estos que aportan a la consolidación de trabajos dignos y ambientes productivos.The selection of personnel is a vital process for modern organizations, thus hiring the right candidate for each position is a goal of the human talent unit in charge of the process. Currently the application of the Polygraph has become a support tool for the recruitment of personnel and their subsequent assignment, mediated by the selection of personnel, which is the process where the appropriate profiles for the position and the relevance of the candidates are established. to occupy them. Thus, the well-used Forensic Psychophysiology, since it measures the degree of certainty of the candidates for a specific position, allows not only to measure ethical aspects among which is acting honestly, but also to provide highly reliable information that corroborates the suitability of the interviewee to occupy the position, which will result in efficiency by having the right person in the position indicated. The aforementioned project seeks to contribute to the development of selection systems in organizations, but also validate the values ​​of the individual from the perspective of transparency and moral values, elements that contribute to the consolidation of decent work and productive environments

    EFFICACY OF THE NATIONAL PROGRAM OF IRON SUPPLEMENTATION IN THE ANAEMIA CONTROL IN INFANTS ASSISTED BY CHILD EDUCATION CENTERS

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    Introduction: iron deficiency occurs in endemic proportion among hildren and is one of the causal factors of inappropriate cognitive, social, motor and reduced learning ability, putting infants as a priority group for nutritional intervention programs aiming to control iron deficiency. Thus, in 2005 the Ministry of Health established the National Program of Iron Supplementation (PNSF) available for the universe of children of 6-24 months old attended in Basic Health Units. Objective: to estimate the prevalence of anaemia and analyse the efficacy of profilatic supplementation with ferrous sufate. Methods: a prospective follow-up study intervention that was developed in the city of Guarujá – SP, Brazil in the universe of children between 6-24 months old attended in the Public Basic Health Units whose parents authorized their participation. The supplement was offered in accordance with the standards of PNSF and diagnosis of anaemia was performed before and 6 months after the intervention period. As a criterion for anaemia was used the standards of the World Health Organization that defines moderate anaemia to haemoglobin (Hb) between 11.0 and 9,5gHb/dL and severe anaemia to below 9,5gHb/dL. Results: a total of 136 children under two years, (81% of total) participated in the study. No statistically significant difference was found between the mean Hb concentration before and after the intervention period (p=0.684). The initial mean Hb was 11,6g/dL (SD=1.82) and the final 11.5g/dL (SD=1.31). Although only 11 of the 49 anemic reached normal values, 33 of them showed an increase in Hb concentration. Conclusion: there was an increase in Hb concentration among children with severe anaemia. There was no change in the situation of children with moderate anaemia. Supplementation with ferrous sulphate was not sufficiently effective in controlling iron deficiency in infants

    Opioid-Induced Constipation in Oncological Patients: New Strategies of Management

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    Opinion statement Cancer-associated pain has traditionally been treated with opioid analgesics, often in escalating doses. Opioid-induced constipation (OIC) is a common problem associated with chronic use of opioid analgesics. Typical treatment strategies to alleviate constipation are based on dietary changes, exercise, and laxatives. However, laxatives have a nonspecific action and do not target underlying mechanisms of OIC. This article will review prevalent, clinical presentation and recommendations for the treatment of OIC. An independent literature search was carried out by the authors. We reviewed the literature for randomized controlled trials that studied the efficacy of laxatives, naloxone, and naloxegol in treating OIC. Newer strategies addressing the causal pathophysiology of OIC are needed for a more effective assessment and management of OIC. Finally, traditional recommended therapies are appraised and compared with the latest pharmacological developments. Future research should address whether naloxegol is more efficacious by its comparison directly with first-line treatments, including laxatives

    Microscopic and Genetic Characterization of Bacterial Symbionts With Bioluminescent Potential in Pyrosoma atlanticum

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    The pelagic tunicate pyrosome, Pyrosoma atlanticum, is known for its brilliant bioluminescence, but the mechanism causing this bioluminescence has not been fully characterized. This study identifies the bacterial bioluminescent symbionts of P. atlanticum collected in the northern Gulf of Mexico using several methods such as light and electron microscopy, as well as molecular genetics. The bacteria are localized within the pyrosome light organs. Greater than 50% of the bacterial taxa present in the tunicate samples were the bioluminescent symbiotic bacteria Vibrionaceae as determined by utilizing current molecular genetics methodologies. A total of 396K MiSeq16S rRNA reads provided total pyrosome microbiome profiles to determine bacterial symbiont taxonomy. After comparing with the Silva rRNA database, a Photobacterium sp. r33-like bacterium (which we refer to as “Photobacterium Pa-1”) matched at 99% sequence identity as the most abundant bacteria within Pyrosoma atlanticum samples. Specifically designed 16S rRNA V4 probes for fluorescence in situ hybridization (FISH) verified the Photobacterium Pa-1 location as internally concentrated along the periphery of each dual pyrosome luminous organ. While searching for bacterial lux genes in two tunicate samples, we also serendipitously generated a draft tunicate mitochondrial genome that can be used for Pyrosoma atlanticum identification. Scanning (SEM) and transmission (TEM) electron microscopy confirmed the presence of intracellular rod-like bacteria in the light organs. This intracellular localization of bacteria may represent bacteriocyte formation reminiscent of other invertebrates
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