1,047 research outputs found
ENVIE Co-ordination action on indoor air quality and health effects; WP3 Final report – Characterisation of spaces and source
Human exposure to environmental pollutants occurs via various pathways. For many
pollutants, especially the volatile ones, air exposure is the dominant pathway.
Exposure via air occurs both outdoors and indoors, with diverse types of indoor
spaces playing a role, e.g., home, workplace, and passenger cabins of means of
transportation. In average people spend over 90% of their time indoors, that
percentage being particularly high for some specific groups as new-born,
elderly, disabled or sick people. The global exposure to air contaminants is
therefore drastically determined by indoor conditions. It is now well
established that indoor air pollution contributes significantly to the global
burden of disease of the population. For a majority of indoor air contaminants,
particularly in the presence of common indoor sources, however, indoor
concentrations usually exceed outdoor concentrations, for some pollutants even
with an indoor/outdoor ratio of 10 or 20. Emissions are identified, accordingly
to the EnVIE approach and grouped into four categories: building materials and
related sources, including dampness and moulds; ventilation, natural and
mechanical, including, or not, heating, cooling and humidification/
dehumidification; consumer products, furnishing, cleaning and household
products; and occupant activities. Emission of chemical substances from
construction materials and products in buildings to the indoor air have been
reported and reviewed for a wide range of substances, including those formed
during secondary reactions, causing complaints of irritation and odour. During
the last two decades there has been increasing advances in construction
technology that have caused a much greater use of synthetic building materials.
Whilst these improvements have led to more comfortable buildings, they also
provide indoor environments with contaminants in higher concentrations than are
found outside. Wood and cork are now frequently used as a building product for
floor coverings, because the material is often regarded as “natural” and
“healthy”. However, industrial products, even based on natural raw materials,
may contain a number of artificial ingredients and the chemical emissions will
strongly depend on the type of additives and the manufacturing process. Modern
interior paints are usually based on a polymeric binder. In order to fulfil
requirements on e.g., durability, paint contains various functional chemicals.
Water-borne paints usually also contains small amounts of approved biocides.
Polymeric binders with a very low content of residual monomers have been
developed for paint. Besides the release of substances to the indoor air due to
primary emission, damp building materials may give rise to volatile substances
formed during secondary reactions. Semi-volatile organic compounds (SVOCs) are
now receiving much more attention than heretofore. The HVAC (Heating,
Ventilation and Air Conditioning) systems as providers, among others, of
services of cleaning and dilution of pollutants in the indoor air are also
recognized as potential pollution sources. Several studies have shown that the
prevalence of SBS symptoms is often higher in air conditioned buildings than in
buildings with natural ventilation. 8 The outdoor air introduced indoors through
either ventilation systems or natural means is also an important and not always
controllable source for the intake of some outdoor pollutants. Outdoor air used
for ventilation may also be source of pollution containing particulate matter,
particulates of biological origin (microorganisms, pollen, etc.) and various
gases like NOx and O building structures which is a driving force for the
airflows which will transport to indoors water vapour and gaseous or particulate
contaminants. Volatile organic compounds are emitted from a wide variety of
household and consumer products with emission rates that are strongly dependent
on the type of application and are distributed over several orders of magnitude.
A number of product classes are identified and information on ingredients and
available data on emissions from individual products are presented. Human
activities and the associated use of products encompass a wide range of indoor
sources involving release of inorganic gases, particles and organic compounds as
a consequence of the activity. For some releases such as with air fresheners the
release is a necessary part of the activity to achieve the intended effect
whereas for others, such as the release of combustion fumes from a gas
appliance, the purpose of the action (in this case generation of heat) is
different from the emission. Combustion processes are an important source of a
range of air pollutants as carbon monoxide, nitrogen dioxide, sulphur dioxide,
particulates and associated inorganic and organic chemicals, organic vapours
e.g. formaldehyde, acetaldehyde, and benzene. Sources of these are present in
both ambient and indoor environments. The concentrations present in the ambient
air provide a baseline for the level of pollutant found indoors as this air
enters indoors by processes of infiltration and ventilation. However, the
concentration indoors will be modified by processes of sorption to surfaces and
chemical reaction depending on the chemical and physical properties of the
pollutant and internal surfaces. People themselves are a source of emissions of
chemicals and gases, notably CO range of organic compounds that are referred to
as body odours. The removal of such body odours is a prime objective of
ventilation in order to achieve a satisfactory indoor environment. WP3 aims at
to characterize spaces and sources in order to understand where and how to act
to guarantee good IAQ. From the two strategies for good IAQ, source control and
ventilation, the precautionary principle suggests that first priority shall be
given to source control, avoiding, mitigating or simply managing sources of
emissions. An overview of all policies on IAQ or related to IAQ, existing or in
preparation, directly related to indoor air sources, but also covering outdoor
air and industrial emissions, which could affect indirectly IAQ is made.
Considering the presented it could be concluded that IAQ is yet poorly regulated
at EU level, and in view of that some recommendations are made. The
recommendations on policies have taken into account the existing related to IAQ
policies such as new EU policies on chemicals (REACH; 2006/121/EC), consumer
products (GPSD; 2001/95/EC), construction products (CPD; 89/106/EC) and energy
performance of buildings (EPBD; 2002/91/EC) all refer to IAQ issues - suggesting
that they could, and probably should, contribute to IAQ policy development and
advocate an integrative and comprehensive policy approach centred
Evaluación de la mezcla de Burdeos, aceites y extractos vegetales sobre la mancha de fresa y la producción de frutos
Plant extracts and oils were assessed for strawberry leaf spot control in organic strawberry in the open field. For first cycle, treatments were extracts of rosemary (10 %) (Rosmarinus officinalis L.), garlic (Allium sativum L.) (0.01 %), rue (Ruta graveolens L.) (10 %), turmeric (Curcuma longa L.) (1 %), Bordeaux mixture (1 %), cotton (1.5 %) and canola oils (1 %), and water (control). For second cycle, Rosemary (20 %), rue (20 %), turmeric (2 %), canola oil (2 %), and water were used as treatments. A completely randomized block design with five replications was used. An analysis of variance was performed on the severity data, AUDPC and fruit production means were compared by the Scott-Knott and Tukey tests at 5% probability for first and second cycles, respectively. Canola oil (1 and 2 %) reduced disease symptoms in both cycles. Rosemary and rue extracts reduced just when disease severity was low. Cotton and canola oils and rosemary, rue and turmeric extracts increased strawberry fruit production.Se evaluaron extractos y aceites vegetales para el control de viruela en fresa orgánica en campo abierto. Los tratamientos en el primer ciclo fueron extractos de romero (Rosmarinus officinalis L.) (10 %), ajo (Allium sativum L.) (0,01 %), ruda (Ruta graveolens L.) (10 %), cúrcuma (Curcuma longa L.) (1 %), mezcla de Burdeos (1 %), aceites de algodón (1,5 %) y aceites de canola (1 %) y agua (control). En el segundo ciclo los tratamientos fueron romero (20 %), ruda (20 %), cúrcuma (2 %), canola aceite (2 %) y agua. El diseño experimental utilizado fue de bloques completamente al azar, con cinco repeticiones. Se realizó un análisis de varianza sobre los datos de severidad, el AUDPC y las medias de producción de frutos se compararon mediante la prueba de Scott-Knott y Tukey al 5 % de probabilidad para primer y segundo ciclos. El aceite de canola (1 y 2 %) redujo los síntomas de la enfermedad en los dos ciclos. Los extractos de romero y ruda se redujeron justo cuando la gravedad de la enfermedad era baja. Los aceites de algodón y canola y los extractos de romero, ruda y cúrcuma aumentaron la producción de frutos de fresa
Internal cardiac massage in dogs: a new technique proposition for emergency pericardiotomy - ligament traction
PURPOSE: Describe a technique of emergency pericardiotomy, named as Ligament Traction (LT), to reduce the necessary time to begin the Internal Cardiac Massage. To perform the ICM an emergency toracotomy and pericardiotomy are necessary, both in remote time. The technique usually employed is the T pericardiotomy, whose execution depends on the apprehension of the pericardium with an Allis forceps. This apprehension is difficult and complicates the reanimation of the patient METHODS: Twenty canine corpses were divided into two groups: Group I - T pericardiotomy (n=10), and Group II - the LT technique (n=10). The LT consisted on the traction of the pericardiumphrenic ligament and the section of the pericardium next to its apex. The incision was elongated with the introduction of the fingers, also allowing the positioning of the heart in the hand of the operator and the immediate beginning of the ICM. RESULTS: Group I presented an execution period of 21.79 ± 0.88 second, and Group II of 8.58 ± 1.38, with p<0.0001 (highly expressive). CONCLUSION: The technique of pericardiotomy by Ligament Traction concur to outliving, because it avoids a larger time of cerebral ischemia, due to the early beginning of the circulation.OBJETIVO: Descrever uma técnica de pericardiotomia de emergência, denominada Tração Ligamentar (TL), para diminuir o tempo necessário ao início da Massagem Cardíaca Interna (MCI). Para a MCI necessita-se de toracotomia de emergência e pericardiotomia, ambas em tempo mínimo. A técnica comumente empregada corresponde a pericardiotomia em T, cuja execução depende da apreensão do pericárdio com uma pinça de Allis. Este pinçamento é difícil, dificultando a reanimação do paciente. MÉTODOS: Utilizou-se 20 cadáveres de cães, divididos em dois grupos de animais, sendo o Grupo I - pericardiotomia em T (n=10) e Grupo II - técnica proposta (n=10). A técnica de TL consistiu na tração do ligamento frenicopericárdico e da secção do pericárdio próximo ao seu ápice. A incisão foi alongada pelos dedos enquanto eram nela introduzidos e permitiu, também, o correto posicionamento do coração na mão do operador, bem como o pronto início da MCI. RESULTADOS: O Grupo I apresentou tempo de execução de 21,79 ± 0,88 segundo, e o Grupo II de 8,58 ± 1,38 segundo, sendo p<0,0001, (altamente significativo). CONCLUSÃO: A técnica de pericardiotomia por TL impede um tempo maior de isquemia cerebral, por iniciar prematuramente a circulação sangüínea, contribuindo para a sobrevida.Universidade Federal de Santa MariaEscola Paulista de MedicinaSOBRADIPECUniversidade de São PauloUNIFESP, EPMSciEL
Beating heart partial ventriculectomy in dogs
After valve endocardiosis, dilated cardiomyopathy is the most diagnosed cardiac affection in dogs. Sometimes this disease is unresponsible to medical therapy, in this way surgery becomes necessary to its correction. Unfortunately, dogs do not support cardiopulmonary bypass because its tendency in microtrombus formation in the capillary vessels of the lung circulation. Due to this condition, another surgical alternatives were developed, in order to correct the increase in ventricle size, as the ventricle plication or partial ventriculectomy with the inflow occlusion. However, this kind of technique has its complications, as well the ventricle plication. In plication, a part of necrotic heart tissue still remains, and if the necrosis does not happen, that portion of myocardium keeps its oxygen consumption, leading to heart failure. The partial ventriculectomy with the inflow occlusion is time dependent. For its execution it means that the surgeon gets only four minutes to perform the resection of the dilated ventricle and then suture the remaining defect after the inflow occlusion. The aim of this study is to develop a new technique of heart size reduction, called by the authors Beating Heart Partial Ventriculectomy
Visita domiciliar em um condomínio de idosos como instrumento para atenção e cuidado integral à saúde / Home visit in an elderly condominium as an instrument for integral health care and care
O envelhecimento humano é um fenômeno natural, social e irreversível. É dever do Estado a garantia do envelhecimento saudável e com condições dignas. O presente estudo tem como objetivo descrever as experiências dos estudantes de medicina em um condomínio de idosos através da visita domiciliar, além de reconhecer as principais necessidades em saúde, fazer intervenções educacionais com ênfase na saúde, a fim de garantir a atenção e cuidado integral ao idoso. Trata-se de um estudo descritivo, qualitativo, com abordagem direta e observacional na modalidade Relato de Experiência. O registro de dados ocorreu por meio de fontes escritas, orais e imagéticas, no período de setembro e outubro de 2019. O idoso tem particularidades que impactam a qualidade de vida, visto que possuem maiores índices de doenças crônicas e fragilidades, mais custos para a saúde, menos recursos sociais e financeiros. Envelhecer, sem a devida assistência é um desafio. Com tantas condições desafiadoras, faz-se indispensável aproximar-se do cuidado do idoso por meio das visitas domiciliares. Assim, foi possível planejar atividades que envolvessem a coletividade, destacou-se a importância dos idosos se relacionarem e dialogar mais entre si. A visita domiciliar proporcionou benefícios mútuos. É imprescindível a ampliação da proteção social da pessoa idosa, a fim de garantir a qualidade de vida e um envelhecimento saudável. Não menos importante é a necessidade da construção do vínculo, visto que se torna mais fácil desenvolver um trabalho que contemple, ao máximo, a necessidade de quem carece do cuidado
Ureteroneocistostomia extravesical modificada pela sondagem ureterovesical peroperatória no autotransplante renal em cães
To test a modified extravesical ureteroneocystostomy using a urethral probe like a stent just on the peroperative time, seven adult mongrel dogs underwent bilateral nephrectomy followed by unilateral autotransplantation. The other kidney was discarded. The evaluation of the animals was made by ultrasonography and clinical exams for the first six weeks after the surgery. The excretory urography was made on the end of this period. Then, the clinical exams were done by at least four months in each dog, without any complication. The technique of urinary tract reconstruction was considered efficient, without urological complications on the postoperative time of all the dogs.Realizou-se, em sete cães adultos, o autotransplante renal esquerdo associado à nefrectomia contralateral para avaliação da técnica de ureteroneocistostomia extravesical modificada pela sondagem ureterovesical peroperatória. Durante a sutura do ureter na bexiga, foi mantida uma sonda uretral na região da anastomose ureterovesical, o que facilitou a realização da técnica cirúrgica e permitiu a confecção de anastomose de diâmetro adequado. A avaliação do rim transplantado e do ureter correspondente foi feita mediante ultra-sonografia a cada sete dias durante as seis primeiras semanas de pós-operatório, período em que também se fez o exame clínico diário de todos os animais. No último dia (42º) da avaliação a curto prazo, realizou-se a urografia excretora. Em seguida, manteve-se acompanhamento clínico periódico dos sete cães por um período mínimo de quatro meses, sem que fosse detectada qualquer alteração digna de nota. A técnica de reconstrução do trato urinário utilizada mostrou-se eficiente, não se observando nenhuma complicação urológica no pós-operatório de todos os animais
MENOPAUSA E SUAS CONSEQUÊNCIAS PSICOLÓGICAS.
Introduction: Menopause, a natural stage in women's lives, marks the end of the reproductive period and is often accompanied by hormonal and physical changes. Furthermore, menopause can have significant implications for women's mental health, influencing their emotional and psychological states. Objective: This study aims to investigate the psychological consequences of menopause in women, exploring the emotional and behavioral impacts associated with this transition phase. Methodology: This is an integrative literature review, with an approach that allows the synthesis of studies with different methodologies, including qualitative, quantitative and mixed studies. Searches were carried out in electronic databases, such as PubMed, PsycINFO and Scopus, using keywords related to menopause and mental health. Studies published in the last 10 years were selected. Results: The results highlighted a variety of psychological consequences related to menopause. Many participants reported symptoms of anxiety, depression and mood swings. In addition, self-esteem and body image were affected in some cases. Quality of life was also perceived as compromised due to these emotional challenges. Final Considerations: The study highlights the importance of understanding the psychological implications of menopause and recognizing that this phase can be accompanied by significant emotional difficulties for some women. The multidimensional approach, which considers both the biological and psychological aspects of menopause, is essential to provide adequate support to women in this transition.Introdução: A menopausa, um estágio natural na vida de mulheres, marca o fim do período reprodutivo e é frequentemente acompanhada por mudanças hormonais e físicas. Além disso, a menopausa pode ter implicações significativas para a saúde mental das mulheres, influenciando seus estados emocionais e psicológicos. Objetivo: Este estudo tem como objetivo investigar as consequências psicológicas da menopausa em mulheres, explorando os impactos emocionais e comportamentais associados a essa fase de transição. Metodologia: Trata-se de uma revisão integrativa da literatura, sendo uma abordagem que permite a síntese de estudos de diferentes metodologias, incluindo estudos qualitativos, quantitativos e mistos. Foram realizadas buscas em bases de dados eletrônicas, como PubMed, PsycINFO e Scopus, utilizando palavras-chave relacionadas à menopausa e saúde mental. Foram selecionados estudos publicados nos últimos 10 anos. Resultados: Os resultados destacaram uma variedade de consequências psicológicas relacionadas à menopausa. Muitas participantes relataram sintomas de ansiedade, depressão e oscilações de humor. Além disso, a autoestima e a imagem corporal foram afetadas em alguns casos. A qualidade de vida também foi percebida como comprometida devido a esses desafios emocionais. Considerações Finais: O estudo evidencia a importância de compreender as implicações psicológicas da menopausa e reconhecer que essa fase pode ser acompanhada por dificuldades emocionais significativas para algumas mulheres. A abordagem multidimensional, que considera tanto os aspectos biológicos quanto os psicológicos da menopausa, é essencial para fornecer um suporte adequado às mulheres nessa transição
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