Miracle-dz/UniFAR-FTUs huggingface dataset:
Endovascular stent-graft placement for the treatment of acute aortic dissection.

BACKGROUND The standard treatment for acute aortic dissection is either surgical or medical therapy, depending on the morphologic features of the lesion and any associated complications. Irrespective of the form of treatment, the associated mortality and morbidity are considerable. METHODS We studied the placement of endovascular stent-grafts across the primary entry tear for the management of acute aortic dissection originating in the descending thoracic aorta. We evaluated the feasibility, safety, and effectiveness of transluminal stent-graft placement over the entry tear in 4 patients with acute type A aortic dissections (which involve the ascending aorta) and 15 patients with acute type B aortic dissections (which are confined to the descending aorta). Dissections involved aortic branches in 14 of the 19 patients (74 percent), and symptomatic compromise of multiple branch vessels was observed in 7 patients (37 percent). The stent-grafts were made of self-expanding stainless-steel covered with woven polyester or polytetrafluoroethylene material. RESULTS Placement of endovascular stent-grafts across the primary entry tears was technically successful in all 19 patients. Complete thrombosis of the thoracic aortic false lumen was achieved in 15 patients (79 percent), and partial thrombosis was achieved in 4 (21 percent). Revascularization of ischemic branch vessels, with subsequent relief of corresponding symptoms, occurred in 76 percent of the obstructed branches. Three of the 19 patients died within 30 days, for an early mortality rate of 16 percent (95 percent confidence interval, 0 to 32 percent). There were no deaths and no instances of aneurysm or aortic rupture during the subsequent average follow-up period of 13 months. CONCLUSIONS These initial results suggest that stent-graft coverage of the primary entry tear may be a promising new treatment for selected patients with acute aortic dissection. This technique requires further evaluation, however, to assess its therapeutic potential fully.
Reduced Glutathione as an Effector of Phosphoenolpyruvate Carboxylase of the Crassulacean Acid Metabolism Plant Sedum praealtum D.C.

Reduced glutathione, but not mercaptoethanol or dithiothreitol, inhibits phosphoenolpyruvate carboxylase (PEPC) in desalted leaf extracts from Sedum praealtum D.C. The inhibition is more evident at low pH values (< 7.2) and becomes increasingly smaller at higher pH. In the presence of the inhibitor, the hyperbolic rate curve of night PEPC is transformed to sigmoid and the S(0.5) is increased. When the enzyme is extracted during the day, the rate curve is sigmoid and it is not changed by the inhibitor, though the S(0.5) is further increased. Oxidized glutathione is completely inactive. Levels of reduced glutathione in leaf tissue are distinctly higher in the light. A role of photosynthetically reduced glutathione in the regulation of PEPC in Crassulacean acid metabolism species appears probable.
FINE STRUCTURE OF THE NERVOUS SYSTEM OF HYDRA.

Fine structural details of the cells and processes of the hydra nenous system are reported in this paper. Ganglion cells are small bipolar or multipolar cells situated above the muscular processes of epitheliomusiular cells. An elaborate Colgi apparatus consisting of parallel lamellae and small and large vesicles is present in these cells. Some cells are poor in ribosomes while others contain numerous free ribosomes. In the ribosome-rich cells, small membranous microtubules originating from the nuclear envelope extend into the cytoplasm and neurites. The neurites also contain vesicles and mitochondria and terminate at the bases of cnidoblasts and on the muscular processes of epitheliomuscular cells. Specialized synapses were not observed. A second cell type contains many membrane-bounded dense granules, 1000 A in diameter, and these are considered to be neurosecretory cells. Neurosecretory granules on cnidoblasts and epitheliomuscular cells. Sensory cells are small elongated cells originate in the Golgi apparatus and are abundant in neurites which also terminate situated between the apical surfaces of epithelial and digestive cells. These cells are characterized by an apical specialization which appears to be a modified cilium. Neurosensory cells were also observed. The intimate connection of the nervous system with cnidoblasts suggests a role in nematocyst discharge. The finding of neurosecretory material supports the hypothesis that the neural control of regeneration in hydra is regulated by material released at nerve endings.
Chemical burn injury secondary to intraoperative transesophageal echocardiography.

UNLABELLED We describe a case of a 72-yr-old male who suffered aerodigestive tract chemical injury resulting from a probable post-processing residual of the high-level disinfectant solution Cidex OPA (ortho-phthalaldehyde) used to disinfect the transesophageal echocardiogram probe used for cardiac monitoring during general anesthesia. This case highlights the need for strict adherence to manufacturers' instructions when using chemical disinfectants for transesophageal echocardiogram probe reprocessing. IMPLICATIONS We describe a case of aerodigestive tract chemical injury resulting from a probable post-processing residual of the high level disinfectant solution Cidex OPA (ortho-phthalaldehyde) used to disinfect the transesophageal echocardiogram probe used during general anesthesia.
Partitioned Compressed L 2 Cache

The effective size of an L2 cache can be increased by using a dictionary-based compression scheme. Since the data values in a cache greatly vary in their "compressibility," the cache is partitioned into sections of different compressibilities. For example, the cache may be partitioned into two roughly equal parts: two-way uncompressed cache having 32 bytes allocated for each line and an eight-way compressed cache have 8 bytes allocated for each line. While compression is often researched in the context of a large stream, in this work it is applied repeatedly on smaller cache-line sized blocks so as to preserve the random access requirement of a cache. When a cache-line is brought into the L2 cache or the cache-line is to be modified, the line is compressed using a dynamic, LZW dictionary. Depending on the size of the compressed string, it is placed into the relevant partition. Some SPEC-2000 benchmarks using a compressed L2 cache show an 80% reduction in L2 miss-rate when compared to using an uncompressed L2 cache of the same area, taking into account all area overhead associated with the compression circuitry. For other SPEC-2000 benchmarks, the compressed cache performs as well as a traditional cache that is 4.3 times as large as the compressed cache, taking into account the performance penalties associated with the compression. Thesis Supervisor: Larry Rudolph Title: Principal Research Scientist
Correction of PET Data for Partial Volume Effects in Human Cerebral Cortex by MR Imaging

Due to the limited spatial resolution of positron emission tomography (PET), the accuracy of quantitative measurements of regional metabolism or neuroreceptor concentration is influenced by partial volume averaging of brain with CSF, bone, and scalp. This effect is increased in the presence of cortical atrophy, as in patients with Alzheimer disease (AD). Correction for this underestimation in PET measurements is necessary for the comparison of AD patients and normal controls. We have developed a method for three-dimensional correction of human PET data using magnetic resonance (MR) imaging. A composite brain tissue image is created by summing the binary representation of nine MR images, weighted to the PET z-axis line-spread function. This composite tissue image is convolved to the resolution of the PET image. The original PET image is divided by the convolved tissue image on a pixel-by-pixel basis, resulting in an atrophy-corrected PET image in which count density represents activity per volume of brain tissue rather than spatial volume. This has been performed in [11C]carfentanil mu-opiate receptor PET studies of the temporal cortex in two AD patients and one normal volunteer. After correction, average regional increases in count density were 11% (range = 4–21%) in the normal and 46% (range = 28–99%) and 48% (range = 14–109%) in the patient studies. The accuracy of this method of partial volume correction was estimated using a spherical phantom.
Nutritional implications and physiologica response to pediatric diarrhea

As depicted in Figure 1 acute diarrhea causes the host to undergo a sequence of hormonal, metabolic and immunologic responses, all of which have a nutritional cost. The impact will be more significant in the debilitated or marginally nourished child. From a nutritional point of view this process of nutrient loss and redistribution has the potential for being exploited to the benefit of the host. Two treatment techniques could be used to improve the host response to infection. Nutrients which are essential for optimal immune function and which are rapidly being metabolized may be selectively replaced, while nutrients that the offending organism needs may be withdrawn or temporarily withheld. A better understanding of the physiologic response and nutritional consequences of diarrhea should permit us to further improve the outcome of this and other infectious diseases.
The effects of natural selection on linkage disequilibrium and relative fitness in experimental populations of Drosophila melanogaster.

process of natural selection may be studied in laboratory populations in '? to ways. First, the genetic changes which occur during the course of microevolutionary change can be followed and, second, accompanying this, the size of the populations can be measured. CARSON (1961 ) considers the relative size of a population to be an important measure of relative population fitness when comparing genetically different populations of the same species under uniform environmental conditions over a period of time. In the present experiment, the experimental procedure of CARSON was utilized to study the effects of selection on certain gene combinations and to measure the level of relative population fitness reached during the microevolutionary process. Experimental populations were constructed with certain oligogenes in low frequency and in certain associations in order to provide a situation likely to be changed by natural selection. Specifically, oligogenes on the third chromosome were allowed to recombine freely with the homologous Oregon chromosome so that three separate blocks could be selected for introduction into homozygous Oregon populations. The
This present study describes the relationship between lesions induced and bacterial distribution and / or localization along the gastrointestinal tract in buffalo calves exposed to oral Pasteurella multocida

The gastrointestinal lesions and bacterial distribution of buffalo calves were evaluated histologically using immunoperoxidase, following oral exposure to wild-type Pasteurella multocida B:2 at 10 9 cfu/mL in phosphate buffered saline. The lesions were basically of mild to severe mucohaemorrhagic abomasitis and enteritis.The lesions were confirmed to be associated with the inoculated P. multocida B:2, using the immunoperoxidase technique. P. multocida B:2 antigen was detected not only in the bacterial clusters in the gastric pits, intestinal epithelia and capillaries, Brünner’s glands and Crypt of Lieberkühn but was also seen interacting with infiltrating neutrophils and macrophages intracellularly and on the surface of erythrocyte in congested vessels and haemorrhages. We observed higher localization and distribution of the immunoperoxidase reaction with increased severity of lesions along the gastrointestinal tract. This suggest intensity increases with increased amount of P. multocida B:2 or antigen in the tissue, which possibly leads to increase tissue damage.
Schonende Beatmung in der Neonatologie

Zusammenfassung Bedingt durch ihre Unreife ist die Lunge eines Frühgeborenen nicht gut auf den postnatal notwendigen lebenserhaltenden Gasaustausch vorbereitet. Hauptprobleme sind lange Diffusionsstrecken, Surfactantmangel, Flüssigkeitsüberladung und inadäquate Kontrolle von freien Radikalen und Entzündugsreaktionen. Dadurch können chronische Schäden entstehen, die man unter dem Begriff bronchopulmonale Dysplasie“ zusammenfasst. Besonders schädlich sind große Tidalvolumina und hohe endinspiratorische Volumina, was bei der Steuerung der mechanischen Beat-mung berücksichtigt werden muss. Dieses Ziel kann durch Verwendung einer höheren Beat-mungsfrequenz oder Akzeptieren von höheren CO2-Partialdrucken (permissive Hyperkapnie) erreicht werden. Der Nutzen ist jedoch in klinischen Studien noch nicht eindeutig belegt. Hochfrequenzoszillationsbeatmung war jedoch einer optimierten konventionellen Beatmung nicht überlegen. Ebenso konnte für synchronisierte und volumenkontrollierte Beatmung kein langfristig bedeutsamer Nutzen nachgewiesen werden. Vielversprechend ist jedoch die zunehmend verbreitete nicht invasive Beatmung, mit deren Einführung die Häufigkeiten verschiedener Komplikationen rückläufig waren.
Effect of alcohol on cardiovascular reflexes.

ing or with with ganglionic, anticholinergic postganglionic actions can or modify adrenergic cardiovas- block- cular responses to reflexes elicited by the Valsalva maneu- ver, a deep breath, hyperventilation and body tilt (1-4). This is to be expected from drugs interacting specifically with efferent adrenergic and cholinergic pathways of a reflex. In contrast, in
L'agriculture en tribu : Poids et fonctions des activités agricoles et de prélèvement - Enquête IAC

Apres plus d'une annee d'enquete sociologique dans 288 tribus de l'archipel,soit plus de 1700 menages, des chercheurs de l'Institut Agronomique neo-Caledonien (IAC) ont evalue le poids et les fonctions reels de l'agriculture en tribu. Ils presentent leurs resultats et revelent que, loin de l'anecdotique, l'agriculture traditionnelle porte une importante richesse economique, sociale et culturelle
Satellite Profile in DVB-NGH Physical layer technical choices and motivations

Digital Video Broadcasting Next Generation Handheld (DVB-NGH) is a hybrid terrestrial-satellite standard conceived to facilitate rich media content consumption using a variety of mobile, handheld devices. Still under drafting, the DVB-NGH specifications are to be released current 2012 with the target of offering superior performance, robustness and coverage with respect to existing solutions. The purpose of this paper is to give an overview of the physical layer of the satellite component of DVB-NGH and to give some insight on the motivation and technical choices that were made during the specification phase, with a focus on the waveform choice and on the pilot grid design. Keywords-DVB-NGH, satellite, SC-FDMA, SC-OFDM, hybrid pilot, PAPR.
A novel approach for highly squinted beam steering SAR data focusing

A new wavenumber domain mapping method for the highly squinted beam steering synthetic aperture radar (BS-SAR) is analysed. After the mapping operation, the two dimensional (2-D) spectrums have a broadside form which can be regarded as an equivalent broadside SAR. Furthermore, a novel 2-D two-step approach is introduced to avoid spectral aliasing and skewing caused by the beam steering and the high squint angle. With the mapping operation being incorporated into the novel two-step approach, the baseband azimuth scaling (BAS) algorithm which is only used for broadside cases can be applied for the highly squinted BS-SAR without subaperture.
Localization-Based System Challenges in Vehicular Ad Hoc Networks: Survey

The vehicular ad hoc network is an emerging technology providing quick and cost-efficient communications in the automobile industry and great applications providing safety, driver assistance and comfort. Real-time information about a vehicle node’s position is based on assumptions acquired from various protocols and applications. One of the most popular technologies, the global positioning system (GPS), has been installed in vehicles to provide reasonable assumptions. A vehicular network depends on localization systems showing vehicle movement in critical areas. GPS systems have faced undesirable issues, such as information not always being available and not being robust enough for some applications. Different types of localization methods have been proposed, such as image/video localization, cellular localization and dead reckoning, to overcome GPS limitations. Data fusion for vehicle positioning is an emerging solution for robust and accurate techniques to replace previous techniques. In this paper, our discussion is based on localization requirements, localization applications and techniques, and the issues for vehicular ad hoc networks. Furthermore, we discuss how these localization techniques and data fusion are combined and used in safety applications to enhance network performance.
LA BIOTECNOLOGÍA Y EL DESARROLLO DE INVESTIGACIÓN APLICADA EN EL PROGRAMA DE INGENIERÍA BIOMÉDICA DE LA EIA Y EL CES

A principios del ano 2002, la investigacion cientifica en el programa de Ingenieria Biomedica del convenio entre la Escuela de Ingenieria de Antioquia EIA y la Universidad CES se encontraba en un estado aun incipiente, en parte porque el programa estaba en una etapa critica de desarrollo curricular, buscando consolidarse en el medio con el trabajo de la primera cohorte de ingenieros biomedicos quienes completarian sus estudios de pregrado para finales de ese ano. Por esto, la investigacion no habia sido la prioridad del programa, especialmente en el area de biotecnologia. Ademas, aun no se contaba con la infraestructura adecuada ni con una base conceptual firme que orientara el desarrollo de lineas estrategicas con aplicaciones biotecnologicas a la salud humana. Con el proposito de equilibrar este panorama, y gracias a la participacion de los estudiantes, directivos y docentes, se ha propiciado la apropiacion del conocimiento, que ha dado el soporte conceptual y permite la planeacion sistematizada y la proposicion de metas claras y alcanzables, y en segundo lugar, el fortalecimiento institucional en infraestructura y tecnologia, que ha posibilitado la presentacion de proyectos de investigacion en biotecnologia, hasta consolidarla como pieza clave en la formacion de los ingenieros biomedicos de la EIA y el CES
Tratamiento de la fibrilación auricular paroxística mediante aislamiento eléctrico de venas pulmonares

El tratamiento de la fibrilacion auricular (FA) paroxistica sintomatica mediante ablacion por cateter es un recurso terapeutico establecido y aceptado en pacientes seleccionados (1-4). Diversos ensayos clinicos y metaanalisis han demostrado su mayor eficacia con respecto al tratamiento farmacologico (5-7). La piedra angular de dicho procedimiento es lograr el aislamiento electrico de las venas pulmonares impidiendo asi que la actividad ectopica alli originada pueda transmitirse a las auriculas e inducir FA. Se utilizan diversos recursos tecnologicos para realizar este procedimiento en forma segura y efectiva para el paciente. Al registro de la actividad electrica de las venas pulmonares mediante el uso de cateteres de mapeo circulares, multipolares, que permiten registrar la desconexion electrica de las venas, se suma el uso de sistemas de imagen no fluoroscopicos que permiten la reconstruccion virtual de la anatomia de la auricula izquierda y de las venas pulmonares, facilitando la navegacion de los cateteres en dicha cavidad y la aplicacion segura de radiofrecuencia. Las figuras corresponden a una paciente de 61 anos, hipertensa, sin cardiopatia estructural y con una historia de mas de cinco anos de FA paroxistica, sintomatica, recurrente y refractaria a los farmacos antiarritmicos incluyendo amiodarona.
El economista y el rey de Belindia: una fábula para tecnócratas

firase una vez un reino que se encontraba en un lejano rincon, situado en medio del camino entre Occidente y Oriente, denominado Belindia. Segun revelaciones de los antiguos, ese nombre, extrana unidad dialec tica de contrarios, tenia que ver con la naturaleza de colonization origi nal del reino, en donde los pueblos traidos de las Indias producian admiradas esencias aromaticas que se vendian en mercados del exterior por comerciantes de origen belga. Cierto dia paso por aquel reino un economista que al visitar al rey le explico sus quehaceres y lo introdujo en los misterios de los intereses compuestos y de las tasas de crecimiento de productos y precios. El mo narca quedo tan impresionado con este visitante que de inmediato lo con trato para estimar la tasa de crecimiento de Belindia. Para felicidad del visitante, Belindia disponia de un buen Instituto de Estadistica que se dedicaba tambien a trazar mapas y cartogramas. A petition del economista, los estadigrafos hicieron una gran lista en la que aparecian, en la primera columna, los belindos economicamente activos; en la segunda, las utilidades en rupias reales (moneda circulante del reino) percibidos en el ano de 1960 y, en la tercera, la tasa de variation de esos intereses (en rupias reales de poder adquisitivo constante) entre 1960 y 1970 para cada uno de los nombres de la lista. La lista era enorme, pues incluia una portion sustancial de la pobla cion adulta de Belindia. Sin embargo, por obra de magia se pudo extraer una muestra representativa de la poblacion de solo seis elementos, con los siguientes resultados:
De E-Wiz à C-Clone. Recueil, modélisation et synthèse d'expressions authentiques

A system for enhancing the use of digitized documents as information transmitting and storage objects in connection with an electronic printer having an image input scanner for scanning documents and converting the image content to image signals. In one embodiment, a bar-coded document has an encoded image representing a secret message, and the printer is equipped with a recognition circuit that uses the bar code to distinguish the encoded document from other non-coded documents to be printed and readies a decoder which upon proper authentication, automatically decodes the encoded image signals output by the array so that the printer provides a print with the decoded message. In a second embodiment, the digitized image comprises an auxiliary software program to be loaded into the printer memory, with a selector circuit for loading the software signals output by the array into the printer memory, with a selector circuit for loading the software signals output by the array into the printer memory.
A Bioluminescence Method for the Demonstration of Regional Glucose Distribution in Brain Slices

Abstract: Regional glucose distribution in brain slices was assessed by a bioluminescence technique. The reaction is based on light emission of luminiferous marine bacteria, Vibrio fischeri, induced by NADPH. Freeze‐dried brain slices were covered by a solution which contained: (a) enzymes and substrates for glucose oxidation and NADPH formation and (b) an extract of Vibrio fischeri for the bioluminescence reaction. Glucose‐induced bioluminescence was recorded on photographic film. Patterns of regional decrease in glucose concentration were demonstrated in cat brains after occlusion of the left middle cerebral artery. This decrease correlated well with a concomitant depletion of ATP and an increase in NADH‐fluorescence.