Search results for "Mediation."
showing 10 items of 761 documents
WASTE DUMPS IN LATVIA: FORMER LANDFILLING, CONSEQUENCES AND POSSIBLE RECULTIVATION
2012
Particular attention in this article is paid to the research of two waste dumps in the capital city of Latvia – Riga, which are planned to be re-cultivated in the nearest future and one site, which is former toxic hazardous soil dump site, where the remediation of site is of priority need. The present study is giving a general overview of contamination level in two waste dumps in Riga, which were made in the period from 50-ties to 70-ties of the 20th century, also the case of hazardous soil dump site formed in a period of more than 100 years is described. Planned actions as well as direct remediational technologies to reduce the poisonous impact to the urban environment and the role of re-c…
Childhood adversity and psychosis: a systematic review of bio-psycho-social mediators and moderators.
2020
AbstractThe association between childhood adversity (CA) and psychosis has been extensively investigated in recent years. An increasing body of research has also focused on the mediating or moderating role of biological and psychological mechanisms, as well as other risk factors that might account for the link between CA and psychosis. We conducted a systematic search of the PsychINFO, Embase, Ovid, and Web of Science databases for original articles investigating the role of genetic vulnerabilities, environmental factors, psychological and psychopathological mechanisms in the association between CA and psychosis up to August 2019. We included studies with individuals at different stages of …
EVALUATION OF AEROBIC AND ANAEROBIC BACTERIAL DECHLORINATION POTENTIAL OF A 1,2-DICHLOROETHANE CONTAMINATED AQUIFER
2023
Chlorinated solvents, belonging to the class of chlorinated aliphatic hydrocarbons (CAHs), are synthetic organohalide chemicals frequently found as contaminants of groundwater and soil, due to their widespread use in several industrial processes and improper disposal methods. These compounds pose serious health threats because of their toxic and sometimes carcinogenic effects. Among these compounds, 1,2-dichloroethane (1,2-DCA) is one of the most common aquifer contaminants, considered toxic and classified as a possible human carcinogen. Remediation approaches toward these contaminants include conventional cleanup technologies based on physical/chemical methods, and bioremediation, consider…
A battery of toxicity tests as indicators of decontamination in composting oily waste.
2000
Heterogeneous oily waste from an old dumping site was composted in three windrows constructed from different proportions of waste, sewage sludge, and bark. The objectives of this pilot study were to examine the usefulness of composting as a treatment method for this particular waste and to study decontamination in the composting process by using a battery of toxicity tests. Five samples from the windrow having intermediate oil concentrations were tested with toxicity tests based on microbes (Pseudomonas putida growth inhibition test, ToxiChromotest, MetPLATE, and three different modifications of a luminescent bacterial test), enzyme inhibition (reverse electron transport), plants (duckweed …
GEOBACTER METALLIREDUCENS MUTANTS FOR CHROMIUM BIOREMEDIATION
2011
Geobacter metallireducens is known to use oxidized metals such as Fe(III) and Mn(IV) as terminal extracellular electron acceptors. G. metallireducens can reduce the highly soluble and toxic Cr(VI) to its insoluble form Cr(III), thus enabling chromium removal from contaminated water and soil. This process is limited by the low toxicity resistance of G. metallireducens to Cr(VI). Genome shuffling can generate mutants with improved phenotype. In our work we are carrying out G. metallireducens genome shuffling, in order to increase its resistance to Cr(VI). In Geobacter species, metal toxicity resistance is correlated to the respiration rate, hence to the reduction rate of the metallic electron…
Genetic technology to improve biofilms electroactivity for bioremediation applications
2010
Hexavalent chromium bioremediation occurs through its reduction to Cr(III) and its following precipitation. Geobacter metallireducens is a dissimilatory metal reducing bacteria known to reduce Cr(VI) to Cr(III) through extracellular electron transfer. However, the effectiveness of this bioreduction process is limited by the low toxicity resistance of G. metallireducens to Cr(VI). G. metallireducens mutants with improved Cr(VI) toxicity resistance can be obtained by genome shuffling method. Here we present the experimental setup for genome shuffling of G. metallireducens, including the optimization of mutagenesis procedure and the respiration rate measure for G. metallireducens in potentiost…
El derecho de autonomia del paciente menor: Virtualidad de la mediacion en conflictos sanitarios con menores
2017
La Ley 41/2002, de 14 de noviembre reconoce el derecho a la autonomía del paciente en el ámbito sanitario, configurado como un derecho subjetivo en el marco de los derechos de la personalidad. Recientemente, las Leyes Orgánica 8/2015, de 22 de julio y Ley 26/2015 de 28 de julio han introducido importantes reformas en la consideración de la madurez de los menores para decidir determinados actuaciones que afectan a su persona, confiriendo a sus progenitores la facultad de consentir intervenciones sanitarias que puedan suponer grave riesgo para su vida o salud. Regulación ésta que plantea ciertos interrogantes a la hora de ofrecer soluciones a ciertos conflictos familiares y sanitarios que se …
NEMATODE COLONIZATION OF PYRITE CINDER-POLLUTED SOIL
2020
The nematofauna was studied in the early stages of a remediation trial at an industrial site where pyrite cinders had accumulated for 40 years in a large area and were then covered with mineral soil. The cinders were contaminated with several metals and metalloids. The soil of the experimental plots was derived from the mixture of cinders with the covering soil in a 1:1 ratio. Plots were amended with manure and sown with 3 metal resistant plants: Sorghum bicolor L., Helianthus annuus L., and Arundo donax L. Samples were taken : a) at the beginning of the trial on the pyrite cinders and covering soil, separately; b) from the mixture before the application of manure; c) from cultivated plots.…
Does Positive Thinking Help during Difficult Pandemic Times? The Role of Positive Orientation in the Relationship between Fear of COVID-19 and Percei…
2023
The COVID-19 pandemic has become a huge challenge for the modern world. How people perceive themselves and their coping abilities is important for their mental health and well-being. One of the traits that may be important in effectively coping with difficulties is positive orientation: a stable cognitive disposition that is the opposite of depression and is associated with a positive perception of oneself, one’s life, events, and the future. This study aimed to verify the role of positive orientation in the relationship between fear of COVID-19 and perceived stress. A sample of 907 Polish people took part in this study. FOC-6, P Scale, and PSS-10 questionnaires were used in the presented c…
La identidad de la diversidad funcional en la comunicación mediada por la tecnología
2017
El objeto de estudio de la investigación que a continuación se presenta gravita sobre el cambio ontológico que impone la tecnología en el ser humano. En concreto, el desarrollo de tecnologías de ayuda aplicadas a Sistemas Alternativos de Comunicación representa un interesante ejemplo de cómo dichos soportes actúan en la base de las interacciones sociales, la comunicación y, cómo esta mediación modifica la propia autoimagen e imagen social de la persona que la emplea. El presente estudio se centra en las personas con parálisis cerebral o enfermedad degenerativa neuronal y en la transformación identitaria que padecen al poderse comunicar con soportes autónomos de alta tecnología. La hipótesis…