Estridor en bronquiolitis de evolución prolongada: un signo a estudiar

Presentamos el caso de un lactante de 2 meses con infección respiratoria baja de evolución tórpida asociada a un signo frecuente, como es el estridor, cuyo estudio permitió el diagnóstico de una patología que requiere un alto índice de sospecha y cuya evolución sin tratamiento puede dar lugar a accidentes gravesWe present the case of a two month-old infant with a torpid course lower airway infection associated with a common sign, such as stridor, which study let us diagnose a pathology which needs high clinical suspicion and whose course without treatment can lead to serious accident

Manajemen Nyeri Pada Pasien Dengan Fraktur Tibia Fibula: Studi Kasus

Accidents often result in fractures. A tibia-fibula fracture will show bone discontinuity and damage to the surrounding tissue, causing complaints of pain. Pain management will prevent, reduce or stop the sensation of pain and increase a sense of comfort. This study used a qualitative research method with a case study approach.The purpose of this study was to describe pain management in patient with tibia-fibula fractures. The participant in this study was a 24 year old male with a fracture of the tibia and fibula. Participants complained of pain in the right leg and heel after an accident. Data were collected by three methods consist of observations, interviews, and documentation. Intervention in this study was pharmacological and non-pharmacological therapy such as building a trusting relationship, teaching distraction and relaxation techniques and placing participants in a comfortable position. Results - there was a decrease in pain levels from 7 to 3, participants stated that there was a decrease in pain, he were able to control the pain, and he could rest wel

Estudio de viabilidad de canteras de yeso mediante tomografía eléctrica

La producción de yeso en España ha ido disminuyendo durante los últimos años; sin embargo, España sigue teniendo una posición destacada como productor mundial de yeso. Además, nuestro país se mantiene líder en Europa tanto a nivel de producción como de exportación de yeso (Marchan et al., 2010). Un factor importante a tener en cuenta durante la explotación de una cantera de yeso es la pureza y continuidad de los niveles estratigráficos que se explotan. En las campañas de prospección (previa o durante la explotación) es habitual el uso de sondeos (helicoidales o de testimonio continuo) para la valoración de los recursos. Esta técnica, sin embargo, es muy cara y aporta sólo información puntual

CARACTERIZACIÓN MORFOLÓGICA DE UNA MUESTRA LOCAL DE Bixa orellana L., EN TABASCO, MÉXICO

Different accessions of achiote (Bixa orellana L.) were characterized through 17 quantitative characters of the plant, leaf, flower and fruit, five qualitative ones of plant morphology, such as type of capsule, color of the leaf sheaf, type of leaves, flower color, type of fruit and seed color. The results showed 16 different accessions from the 40 evaluated. Fruits were found with heart, lancet and oblong shape, with and without trichomes, and green, red, brown and yellow colors. The variables that showed significant differences were capsule diameter, seed width, moist weight, and seed sack. The variables withhigher correlation were moist weight and dry weight of the seed. Two principal components explained 43.25 % of the total variability of the variables evaluated.Se caracterizaron diferentes accesiones de achiote (Bixa orellana L.), mediante 17 caracteres cuantitativos de planta, hoja, flor y fruto, cinco cualitativos de morfología de la planta, tales como tipo de cápsula, color del haz de las hojas, tipo de hojas, color de la flor, tipo de fruto y color de la semilla. Los resultados mostraron 16 accesiones diferentes de las 40 evaluadas. Se encontraron frutos de forma acorazonada, lancetada y oblonga con y sin tricomas, y colores verdes, rojos, cafés y amarillos. Las variables que mostraron diferencias significativas fueron diámetro de cápsula, ancho de semilla, peso húmedo y seco de semillas. Las variables con mayor correlación fueron peso húmedo y peso seco de semilla. Doscomponentes principales explicaron el 43.25% de la variabilidad total de las variables evaluadas

Paleoenvironmental and ecological changes during the Eocene-Oligocene transition based on foraminifera from the Cap Bon Peninsula in North East Tunisia

Biostratigraphic analysis of the Eocene-Oligocene transition (E-O) at the Menzel Bou Zelfa and Jhaff composite section in the Cap Bon Peninsula (North East Tunisia) allowed us to recognize a continuous planktic foraminiferal biozonation: E14 Globigerinatheka semiinvoluta Zone, E15 Globigerinatheka index Zone, E16 Hantkenina alabamensis Zone and O1 Pseudohastigerina naguewichiensis Zone. A quantitative study of benthic and planktic foraminifera assemblages was carried out and the richness and diversity of foraminifera allowed us to reconstruct the paleoenvironmental evolution from marine to terrestrial environments. From the Eocene E14 Zone, the foraminiferal association characterizes a relatively warm climate with considerable oxygen content and a dominance of keeled and spinose planktic foraminifera, which became extinct at the E/O boundary, possibly due to cooling of the planktic environment. Nevertheless, the small benthic foraminifera do not show an extinction event at the Eocene/Oligocene (E/O) boundary, indicating that the benthic environment was not significantly affected. In the basal Oligocene O1 Zone, the benthic environment changes to a shallower setting due to cooling of the climate. These changes generated a remarkable dominance of globular forms in the planktic environment. Small benthic foraminifera apparently have a gradual extinction event, or more likely a gradual pattern of local disappearances, that could have been caused by the Oi1 glaciation

MANEJO ORGÁNICO DE HORTALIZAS EN TENOSIQUE, TABASCO, MÉXICO

The importance of the use of organic sources in agriculture lies in that they are a source of bacterial life for the soil and are precursors of plant nutrition, they improve their physical condition and increase water retention. Composts and biofertilizer were elaborated in four rural communities of Tenosique, Tabasco, México, using as materials the organic wastes collected in backyards, pasturelands and around the communities, in addition to bioinsecticides from the aqueous extracts of Capsicum chinense Jacq., and Allium cepa L. Training workshops were carried out, obtaining two composts with desirable characteristics, a biofertilizer in 60 days and three bioinsecticides in four days with plant products to control pest organisms.La importancia del uso de fuentes orgánicas en la agricultura, radica en que son fuente de vida bacteriana para el suelo y son precursores en la nutrición de las plantas, mejoran su condición física y aumentan la retención del agua. Se elaboraron compostas y biofertilizante en cuatro comunidades rurales de Tenosique, Tabasco, México, utilizando como materiales los desechos orgánicos recolectados en traspatios, potreros y alrededores de las comunidades, además de bioinsecticidas a partir de extractos acuosos de Capsicum chinense Jacq., y Allium cepa L. Se llevaron a cabo talleres de capacitación,obteniendo dos compostas con características deseables, un biofertilizante en 60 días y tres bioinsecticidas en cuatro días con productos vegetales para control de organismos plaga

Semi-Supervised Learning with Graphs: Covariance Based Superpixels for Hyperspectral Image Classification

In this paper, we present a graph-based semi-supervised framework for hyperspectral image classification. We first introduce a novel superpixel algorithm based on the spectral covariance matrix representation of pixels to provide a better representation of our data. We then construct a superpixel graph, based on carefully considered feature vectors, before performing classification. We demonstrate, through a set of experimental results using two benchmarking datasets, that our approach outperforms three state-of-the-art classification frameworks, especially when an extremely small amount of labelled data is used.Case Studentship with the NP

Rotavirus and autoimmunity

Rotavirus, a major etiological agent of acute diarrhea in children worldwide, has historically been linked to autoimmunity. In the last few years, several physiopathological approaches have been proposed to explain the leading mechanism triggering autoimmunity, from the old concept of molecular mimicry to the emerging theory of bystander activation and break of tolerance. Epidemiological and immunological data indicate a strong link between rotavirus infection and two of the autoimmune pathologies with the highest incidence: celiac disease and diabetes. The role for current oral rotavirus vaccines is now being elucidated, with a so far positive protective association demonstrated

A Quantitative Characterization of Nucleoplasmin/Histone Complexes Reveals Chaperone Versatility.

Nucleoplasmin (NP) is an abundant histone chaperone in vertebrate oocytes and embryos involved in storing and releasing maternal histones to establish and maintain the zygotic epigenome. NP has been considered a H2A-H2B histone chaperone, and recently it has been shown that it can also interact with H3-H4. However, its interaction with different types of histones has not been quantitatively studied so far. We show here that NP binds H2A-H2B, H3-H4 and linker histones with Kd values in the subnanomolar range, forming different complexes. Post-translational modifications of NP regulate exposure of the polyGlu tract at the disordered distal face of the protein and induce an increase in chaperone affinity for all histones. The relative affinity of NP for H2A-H2B and linker histones and the fact that they interact with the distal face of the chaperone could explain their competition for chaperone binding, a relevant process in NP-mediated sperm chromatin remodelling during fertilization. Our data show that NP binds H3-H4 tetramers in a nucleosomal conformation and dimers, transferring them to DNA to form disomes and tetrasomes. This finding might be relevant to elucidate the role of NP in chromatin disassembly and assembly during replication and transcription