43 research outputs found
Evaluation of Heavy Metal Content on a Sodic Soil Treated with Bio-waste
The use of bio-wastes in agriculture contributes to the conservation of natural resources by reciclyng carbon and mineral elements. This investigation evaluated the variation of the content of heaby metals in souls affected by sodicity, on which alternating doses of bio-wastes were applied: vinasse, composted swinte manure an sewage sludge forma a wastewater treatment plant. Ten treatments with three doses were implemented for each bio-waste treatment in addition to the control treatment. During the investigationm two applications of bio-wastes were performed with a temporal spacing of two months and three samples were taken: the first one corresponding to the initialcondition of the area without the application of bio-wastes, and the remaining two samples were taken on the first and seventeenth month respectively after the application of bio-wastes. The results indicated a low intake of heaby metals on the soil in the three evaluations that were carried out. However, the use of these residues in agriculture requires specific recommendations for each agro-climatic condition to preven environmental damage
Long-term outcomes in patients with multiple endocrine neoplasia type 1 and pancreaticoduodenal neuroendocrine tumours
Summary
Background In patients with multiple endocrine neoplasia type 1 (MEN-1), pancreaticoduodenal (PD) neuroendocrine tumours (NETs) are associated with early mortality, yet the best treatment strategy remains uncertain. Aim To assess patient important outcomes (mortality and metastasis) of PD-NETs and predictors of outcomes in patients with MEN-1. Methods Retrospective cohort of patients with MEN-1 who attended the Mayo Clinic, Rochester, MN from 1997 to 2014. Results We identified 287 patients with MEN-1; 199 (69%) patients had 217 PD-NETs. Among those with a PD-NETs, 129 (65%) had surgery of which 90 (70%) had their primary surgery performed at Mayo Clinic. The median postoperative follow-up was 8 years during which 13 (14%) patients died. The mean (±standard deviation) age of death was 51 (±9) years. Tumour size, metastasis at surgery or tumour type were not predictive of mortality, but for every year older at surgery, the odds of metastasis increased by 6%. Surgery was not performed in 70 (35%) patients. Among those who were observed/medically managed without known metastatic disease, mean tumour growth was 0·02 cm/year (range, -0·13–0-4 cm/year). Four patients (7%) died at a median age of 77 (range, 51–89) years. Conclusion PD-NETs are common in patients with MEN-1 and are associated with early mortality even after surgical intervention. Active surveillance is a viable option in nonaggressive PD-NETs, although definitive factors identifying such patients are lacking. Therefore, counselling regarding risks and benefits of current treatment options remains integral to the care of patients with MEN-1
Finite axisymmetric charged dust disks in conformastatic spacetimes
An infinite family of axisymmetric charged dust disks of finite extension is
presented. The disks are obtained by solving the vacuum Einstein-Maxwell
equations for conformastatic spacetimes, which are characterized by only one
metric function. In order to obtain the solutions, it is assumed that the
metric function and the electric potential are functionally related and that
the metric function is functionally dependent of another auxiliary function,
which is taken as a solution of Laplace equation. The solutions for the
auxiliary function are then taken as given by the infinite family of
generalized Kalnajs disks recently obtained by Gonz\'alez and Reina (MNRAS 371,
1873, 2006), which is expressed in terms of the oblate spheroidal coordinates
and represents a well behaved family of finite axisymmetric flat galaxy models.
The so obtained relativistic thin disks have then a charge density that is
equal, except maybe by a sign, to their mass density, in such a way that the
electric and gravitational forces are in exact balance. The energy density of
the disks is everywhere positive and well behaved, vanishing at the edge.
Accordingly, as the disks are made of dust, their energy-momentum tensor it
agrees with all the energy conditions.Comment: Submitted to PR
Colombian consensus recommendations for diagnosis, management and treatment of the infection by SARS-COV-2/ COVID-19 in health care facilities - Recommendations from expert´s group based and informed on evidence
La Asociación Colombiana de Infectología (ACIN) y el Instituto de Evaluación de Nuevas Tecnologías de la Salud (IETS) conformó un grupo de trabajo para desarrollar
recomendaciones informadas y basadas en evidencia, por consenso de expertos para la atención, diagnóstico y manejo de casos de Covid 19. Estas guías son
dirigidas al personal de salud y buscar dar recomendaciones en los ámbitos de la atención en salud de los casos de Covid-19, en el contexto nacional de Colombia
Nurses' perceptions of aids and obstacles to the provision of optimal end of life care in ICU
Contains fulltext :
172380.pdf (publisher's version ) (Open Access
Dermatomiositis como expresión de síndrome paraneoplásico
Dermatomyositis is an inflammatory myopathy with cutaneous compromise that has been linked to neoplastia. We introduce a 74 year old patient diagnosed with dermatomyositis who presented with dysphagia and significant weight loss, which lead to the search of a malignant association, with presence of an advanced neoplasic process requiring palliative management with no primary etiology. Due to the increased incidence ofdermatomyositis in cancer patients compared to the general population, it is of vital importance to respond to the clinical signs described as predictors of the association between cancer and DM and not think of it as a primary pathology.La dermatomiositis es una miopatía inflamatoria con afectación cutánea que se ha encontrado asociada con procesos neoplásicos. El artículo presenta el caso de una paciente de 74 años de edad, quien posterior al diagnóstico de dermatomiositis consultó por síntomas de disfagia, asociada con una significativa pérdida de peso. Dadas descripciones previas de la relación de dermatomiositis con cáncer, se decidió iniciar búsqueda de malignidad asociada y se encontró un proceso neoplásico avanzado, con causa primaria desconocida, que requirió manejo paliativo. Por la mayor incidencia de malignidad en pacientes con dermatomiositis, comparada con la población general, es de vital importancia atender a los signos descritos como predictores de la asociación y no pensar en estas como entidades aisladas
Dermatomiositis como expresión de síndrome paraneoplásico
La dermatomiositis es una miopatía inflamatoria con afectación cutánea que se ha encontrado asociada con procesos neoplásicos. El artículo presenta el caso de una paciente de 74 años de edad, quien posterior al diagnóstico de dermatomiositis consultó por síntomas de disfagia, asociada con una significativa pérdida de peso. Dadas descripciones previas de la relación de dermatomiositis con cáncer, se decidió iniciar búsqueda de malignidad asociada y se encontró un proceso neoplásico avanzado, con causa primaria desconocida, que requirió manejo paliativo. Por la mayor incidencia de malignidad en pacientes con dermatomiositis, comparada con la población general, es de vital importancia atender a los signos descritos como predictores de la asociación y no pensar en estas como entidades aisladas
Letras y Encajes
Letras y Encajes publica su primer número en 1926; esta revista fue fundada por mujeres de la clase dirigente de Medellín, muchas de ellas socias de la institución cultural Centro Femenino de Estudios (Sofía Ospina de Navarro, Teresa Santamaría de González, Ángela Villa de Toro y Alicia Merizalde de Echavarría), a lo largo del tiempo se consolidó como la revista femenina más importante del país, dirigida a mujeres de la clase alta y media, abordaba temas que giraban alrededor del hogar, la religión, la literatura y la moda de la época. La revista circuló mensualmente hasta 1959. Sus principales redactoras eran mujeres, pero contaba con la colaboración ocasional de algunos hombres y con traducciones de autoras y autores extranjeras
Evaluation of heavy metal content on a sodic soil treated with bio-waste.
The use of Bio-wastes in agriculture contributes to the conservation of natural resources by recycling carbon and mineral elements. This investigation evaluated the variation of the content of heavy metals in soils affected by sodicity, on which alternating doses of bio-wastes were applied: vinasse, composted swine manure and sewage sludge from a wastewater treatment plant. Ten treatments whith thress doses were omplemented for each bio-waste treatment in addition to the control treatment