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Search Results: 1 - 10 of 326724 matches for " Juan J. Fibla "
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The Role of Ultrasound and Air Leak Measurement in Assessing Lung Expansion after Thoracic Surgery  [PDF]
Abraham Chavarín, Laureano Molins, Jose M. Mier, Juan J. Fibla, Cristina Izquierdo-Vidal, Cristina Simon, Angela Guirao, Jorge Hernandez
Surgical Science (SS) , 2015, DOI: 10.4236/ss.2015.68052
Abstract: Objective: To determine if lung ultrasound semiology is applicable to the post-surgical hemithorax, and its value in the evaluation of lung expansion in the postoperative period when paired with the use of digital chest drain systems. Methods: Prospective observational study including all patients undergoing thoracic surgery from June 2012 to March 2013. Patients undergoing pleurodesis or hemodynamically unstable were not considered candidates. Final inclusion in the study was based on the availability of digital chest drain system. A transthoracic lung ultrasound evaluation of the anterior and anterolateral windows was performed 20 minutes after chest drain placement. Presence or not of lung sliding and air leak values taken from the digital chest drain system were recorded. Data were submitted to a binomial classification test for analysis. Results: Forty-nine patients were included, yielding a total of 64 hemithoraces. Lung sliding was seen in 53 cases (82.8%), and an air leak value of 20 ml/min or less in 56 cases (87.5%). Sensitivity was 92.8% (95% CI: 82.6% to 97.9%) and specificity 87.5% (95% CI: 47.3% to 97.9%). Positive predictive value was 98.1%, and negative predictive value was 63.6%. Conclusions: Transthoracic lung ultrasound is a useful technique that can complement the use of digital chest drain systems in the evaluation of post-surgical lung expansion. The incorporation of lung ultrasound can greatly reduce the need for chest radiographs in thoracic surgery departments.
Cambios temporales en la abundancia y composición del ensamble de aves acuáticas en tranques artificiales en Chile central
Pe?a-Villalobos,Isaac; Fibla,Pablo; Salazar,Juan-Esteban; Sallaberry A,Michel;
Gayana (Concepción) , 2012,
Abstract: central chile is characterized by a mediterranean type environment with a strong climatic seasonality. in this zone of high agricultural activity there are artificial ponds intended for irrigation which can generate environments that constitute alternative habitats for development and nesting of waterbirds. despite the existence of census data in these types of ponds, there are no studies addressing climatic seasonality as a factor which could influence temporal variability and abundance of the ornithological population. with this purpose, we studied temporal changes of the bird community in two types of ponds in the metropolitan region (33° 29' s - 70° 54' w): a seasonal-type pond with pluvial regime that dries during summer season, and a managed pond, with permanent wastewater flow. in the pond with pluvial regime we observed a seasonal variation in the abundance of birds, which correlates positively with the martonne's aridity index. on the other hand, the abundance remained relatively constant in the controlled environment, registering a non significant increase of the abundance during the summer season. moreover, we observed in the two types of ponds; seasonal changes in the composition of the assemblage, numeric variation of certain populations and dispersion of birds between near ponds by the effects of summer desiccation. finally, we discuss the importance of the controlled regime pond (e.g. water treatment plants or wastewater pond) as optional summer habitats during the desiccation process of seasonal sites.
Cambios temporales en la abundancia y composición del ensamble de aves acuáticas en tranques artificiales en Chile central Seasonal changes in the abundance and composition of the waterbirds assemblage in artificial ponds of Central Chile
Isaac Pe?a-Villalobos,Pablo Fibla,Juan-Esteban Salazar,Michel Sallaberry A
Gayana (Concepción) , 2012,
Abstract: La zona central de Chile se caracteriza por ser un ambiente de tipo mediterráneo con marcada estacionalidad climática. En esta zona de gran actividad agrícola existen tranques artificiales destinados al regadío, los cuales pueden generar ambientes que constituyen hábitats alternativos para el desarrollo y nidificación de aves acuáticas. A pesar de la existencia de datos censales en este tipo de tranques, no se han realizado trabajos que aborden la estacionalidad climática como un factor implicado en la variación temporal de la abundancia y del ensamble ornitológico. En este trabajo, se estudiaron los cambios temporales de las comunidades de aves en dos tipos de tranques en la Región Metropolitana (33° 29' S - 70° 54' W): un tranque de tipo estacional con régimen pluvial, que se seca durante la época estival y otro que se alimenta en forma controlada de aguas servidas. Sólo en el ambiente de régimen pluvial se observó variación estacional de la abundancia, la que se correlacionó positivamente con el índice de aridez mensual de Martonne. Por otra parte, en el ambiente de régimen controlado se registró sólo una tendencia en el aumento de la abundancia en el periodo estival, sin un incremento significativo. Además, se observaron en los dos tipos de tranques cambios estacionales en la composición de los ensambles, variación numérica de ciertas poblaciones y dispersión de aves entre tranques cercanos por efectos de desecación estival. Finalmente, se discute la importancia de los tranques de régimen controlado (e.g. plantas de tratamiento o tranques de aguas servidas) como hábitats estivales opcionales durante el proceso de desecación de sitios estacionales. Central Chile is characterized by a Mediterranean type environment with a strong climatic seasonality. In this zone of high agricultural activity there are artificial ponds intended for irrigation which can generate environments that constitute alternative habitats for development and nesting of waterbirds. Despite the existence of census data in these types of ponds, there are no studies addressing climatic seasonality as a factor which could influence temporal variability and abundance of the ornithological population. With this purpose, we studied temporal changes of the bird community in two types of ponds in the metropolitan region (33° 29' S - 70° 54' W): a seasonal-type pond with pluvial regime that dries during summer season, and a managed pond, with permanent wastewater flow. In the pond with pluvial regime we observed a seasonal variation in the abundance of birds, which correlates positively wit
Polimorfismos en genes relacionados con la actividad funcional de la vitamina D y en genes de la respuesta antiviral, y su asociación con la resistencia natural a la infección por el virus de la inmunodeficiencia humana tipo 1
Wbeimar Aguilar-Jiménez,Wildeman Zapata Builes,Antonio J. Caruz Arcos,Joan Fibla Palazón
Actualidades Biológicas , 2012,
Abstract:
Analysis of meiotic recombination in 22q11.2, a region that frequently undergoes deletions and duplications
Laura Torres-Juan, Jordi Rosell, Manuel Sánchez-de-la-Torre, Joan Fibla, Damià Heine-Su?er
BMC Medical Genetics , 2007, DOI: 10.1186/1471-2350-8-14
Abstract: As a first step towards the characterization of recombination rates and breakpoints within the 22q11.2 region we have constructed a high resolution recombination breakpoint map based on pedigree analysis and a population-based historical recombination map based on LD analysis.Our pedigree map allows the location of recombination breakpoints with a high resolution (potential recombination hotspots), and this approach has led to the identification of 5 breakpoint segments of 50 kb or less (8.6 kb the smallest), that coincide with historical hotspots. It has been suggested that aberrant recombination leading to deletion (and duplication) is caused by low rates of Allelic Homologous Recombination (AHR) within the affected region. However, recombination rate estimates for 22q11.2 region show that neither average recombination rates in the 22q11.2 region or within LCR22-2 (the LCR implicated in most deletions and duplications), are significantly below chromosome 22 averages. Furthermore, LCR22-2, the repeat most frequently implicated in rearrangements, is also the LCR22 with the highest levels of AHR. In addition, we find recombination events in the 22q11.2 region to cluster within families. Within this context, the same chromosome recombines twice in one family; first by AHR and in the next generation by NAHR resulting in an individual affected with the del22q11.2 syndrome.We show in the context of a first high resolution pedigree map of the 22q11.2 region that NAHR within LCR22 leading to duplications and deletions cannot be explained exclusively under a hypothesis of low AHR rates. In addition, we find that AHR recombination events cluster within families. If normal and aberrant recombination are mechanistically related, the fact that LCR22s undergo frequent AHR and that we find familial differences in recombination rates within the 22q11.2 region would have obvious health-related implications.Low copy repeats (LCRs), are 10 to 400 kb long DNA blocks with a complex int
What We Think Today on the Interpretation of Dreams, Forgotten and Double Senses  [PDF]
Juan Rodado, Maria J. Rodado
Psychology (PSYCH) , 2018, DOI: 10.4236/psych.2018.94049
Abstract: There are more than a hundred years since the publication of Sigmund Freud’s work “the interpretation of dreams”. How can we take today the ideas that Freud exposes in that text? What can we think of the interpretation of dreams, forgetfulness and double meanings? That is, the ways in which the unconscious is present in the discourse. The following work summarizes the Freudian idea about the storage of memory and about dreams and their rereading in the light of current findings in neuroscience about implicit memory, the re-consolidation of labile memories and the sleep activity that they validate in part and modify Freudian ideas in another.
Pharmacological Control of Estrus in Tropical Cattle, an Economical Assessment of Different Synchronization Protocols  [PDF]
Juan J. Molina, Iván Molina, Alejandro Jiménez, Carlos S. Galina, Juan J. Romero
Open Journal of Veterinary Medicine (OJVM) , 2012, DOI: 10.4236/ojvm.2012.23024
Abstract: To compare the fertility results and to assess the cost-effectiveness of several synchronization protocols applied under the conditions of beef cattle enterprises in Colombia, 1658 multiparous zebu crossbred cows mostly Brahman and Nelore ranging between 2 - 6 parities were used. Five protocols of pharmacological treatments varying in hormones used, dosage and the time of application were tested. All cows were inseminated at 52 h by appointment. Pregnancy diagnosis was undertaken over 45 d after insemination by rectal palpation. The total cost per cow and the total cost per gestation, for each protocol, were calculated. Taking a herd of one-hundred cows as baseline for calculations, it was estimated the cost of the total amount of pregnancies possibly obtained in each protocol; then, the excess between the costs of a pregnant cow and the cost of a treated cow was estimated. Additionally, the costs due to cows empty after four services were calculated. A total of 874 pregnancies were registered (52.7%), with pregnancies per protocol varying between 46.9% and 66.2% (p < 005). The cost per treated cow, varied between $64.08 and $97.47 and the cost per gestation from $126.01 to $177.26, without association between the cost of the treatment and the pregnancy rate. Protocol A was the best cost-effective with the lowest additional costs, the lowest amount of open days (2107.7 to 2231.7 d) and IA straws (average = 134), with an additional costs of $6940.00. Synchronization of estrus using pharmacological products seems to have a place in the management of cattle; however, caution should be called upon a careful assessment both from the part of the farm and the professional in charge of the enterprise to avoid using the technique indiscriminatively thus propitiating the use of a method that might not be cost efficient.
Use of botulinum toxin-A for musculoskeletal pain in patients with whiplash associated disorders [ISRCTN68653575]
Francisco J Juan
BMC Musculoskeletal Disorders , 2004, DOI: 10.1186/1471-2474-5-5
Abstract: This is a prospective, randomized, controlled clinical trial and botulinum toxin-A (Botox?) injections will be compared with placebo injections. The primary objective is to determine the efficacy of Botox? in the management of musculoskeletal pain in whiplash associated disorders.Botulinum toxin type-A toxin has been studied in small trials on whiplash associated disorder patients and has generally been found to relieve pain and improve range of motion. Specifically, we seek to assess the efficacy of Botox? in reducing pain and to improve the cervical spine range of movement, during the 6-month trial period.The term "whiplash" has been used to describe a mechanism of injury, and the various clinical manifestations as a consequence of the injury. Moreover, signs and symptoms have been designated the 'whiplash syndrome'. In 1995, the Quebec Task Force (QTF) on Whiplash Associated Disorders (WAD) adopted the following definition of whiplash: "whiplash is an acceleration-deceleration mechanism of energy transfer to the neck. It may result from rear-end or side-impact motor vehicle collisions, but can also occur during diving or other mishaps. The impact may result in bony or soft-tissue injuries (whiplash-injury), which in turn may lead to a variety of clinical manifestations called Whiplash Associated Disorders"[1]. Whiplash patients can be classified according to severity of signs and symptoms. The QTF-WAD classification system consists of five levels: WAD 0 indicates no complaints or physical signs; WAD I indicates neck complaints but no physical signs; WAD II indicates neck complaints and musculoskeletal signs (such as a decreased range of motion or muscle tenderness); WAD III and IV indicate neck complaints and neurological signs (WAD III) or fracture/dislocation (WAD IV), respectively. Research [2-5] has revealed that the most common presenting symptoms following an acute motor vehicle collision were neck pain (88–100 percent) and headache (54–66 percent). Other s
Occurrence of the genus Caingangia Marsh (Hymenoptera: Braconidae) in Argentina, with the description of a new species
Martinez, Juan J.;
Neotropical Entomology , 2005, DOI: 10.1590/S1519-566X2005000100008
Abstract: the doryctine braconid wasp genus caingangia marsh is recorded for the first time from argentina, based on specimens of c. wesa sp. nov. which is described and illustrated. a key to known species of the genus is provided.
Panbiogeografía, componentes bióticos y zonas de transición
Morrone, Juan J.;
Revista Brasileira de Entomologia , 2004, DOI: 10.1590/S0085-56262004000200001
Abstract: recognition of biotic components is a key element for understanding evolution in space-time. panbiogeography represents a biogeographic approach that may be applied to identify these biotic components. a revision of the panbiogeographic approach is provided herein, including definitions of basic concepts (individual and generalized tracks, nodes, baselines, and main massings) and methods (manual, connectivity and incidence matrices, track compatibility, and parsimony analysis of endemicity). as an example of this approach, 70 biotic components of latin america and the caribbean are identified, briefly characterized, and arranged in a biogeographic system of three regions, seven subregions, and two transition zones. the relevance of the recognition of biotic components and transition zones is discussed.
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