Phylogenetic relationships among five marine Catfish species (Pisces: Ariidae) from Mexico

La sistemática de los bagres marinos pertenecientes a la familia Ariidae es controversial, porque hasta la actualidad, no se conoce con exactitud el número de especies y géneros existentes en la familia, ni las relaciones que se establecen entre ellos. En el presente trabajo se estudiaron las relaciones filogenéticas entre cinco especies representativas de bagres marinos de la familia Ariidae, de ambas costas del Pacífico y del Atlántico Mexicano. El mencionado análisis se llevó a cabo mediante el análisis de la variabilidad en 21 loci aloenzimáticos y a través de la comparación de patrones electroforéticos de proteínas totales de músculo. Los niveles de divergencia interespecífica obtenidos por ambos métodos electroforéticos mostraron una clara separación entre los géneros Cathorops, Bagre y Ariopsis, así como entre las especies estudiadas de Cathorops y Ariopsis con Bagre marinus, mostrando una mayor similitud genética con el grupo Ariopsis. Los resultados obtenidos en este estudio contribuyen al establecimiento de la presencia de estas especies a lo largo de las costas del Golfo de México.The systematics of the marine catfish of the family Ariidae is controversial because at the present time the number of species and genera in the family, or their relationships, remain uncertain. Phylogenetic relationships among five representative species of marine catfish of the family Ariidae from both the Pacific and the Atlantic coasts of Mexico were assessed by the analysis of the variability in 21 alloenzymatic loci, and by the comparison of the electrophoretic patterns of whole muscle proteins. Interspecific genetic divergence levels obtained by both electrophoretic methods showed a clear separation among the genera Cathorops, Bagre and Ariopsis, as well as in the studied species of Cathorops and Ariopsis, with Bagre marinus showing a greater genetic similarity with the Ariopsis group. Finally, our results contribute to the definition of the presence of this species in the coasts of the Gulf of Mexic

Phylogenetic relationships among five marine Catfish species (Pisces: Ariidae) from Mexico

The systematics of the marine catfish of the family Ariidae is controversial because at the present time the number of species and genera in the family, or their relationships, remain uncertain. Phylogenetic relationships among five representative species of marine catfish of the family Ariidae from both the Pacific and the Atlantic coasts of Mexico were assessed by the analysis of the variability in 21 alloenzymatic loci, and by the comparison of the electrophoretic patterns of whole muscle proteins. Interspecific genetic divergence levels obtained by both electrophoretic methods showed a clear separation among the genera Cathorops, Bagre and Ariopsis, as well as in the studied species of Cathorops and Ariopsis, with Bagre marinus showing a greater genetic similarity with the Ariopsis group. Finally, our results contribute to the definition of the presence of this species in the coasts of the Gulf of Mexic

Propuesta de Supply Chain Management y Logística para la empresa Petroco S.A

El documento contiene 12 tablas, 20 figuras y 11 anexos que incluyen los valores más relevantes y gráficos para dar mayor entendimiento al documentoEn este documento se implementa un análisis profundo de las operaciones y procesos de la empresa Petroco S.A enfatizando en las diferentes estrategias de producción y comercialización con base en las herramientas adquiridas del Supply Chain Management y de la logística de profundización. Se tiene en cuenta su red de cadena de suministro para poder recopilar datos específicos sobre cambios significativos en los estándares o requisitos de sus productos, con base en las redes y las actividades que involucran a clientes y proveedores identificando los variados métodos de gestión de su cadena de suministro en pro de proporcionar diferentes estrategias para mejorar los procesos de la empresa.This document implements an in-depth analysis of the operations and processes of the company Petroco S.A, emphasizing the different production and marketing strategies based on the tools acquired from Supply Chain Management and deepening logistics. Your supply chain network is taken into account to be able to collect specific data on significant changes in the standards or requirements of your products, based on the networks and activities involving customers and suppliers identifying the various methods of managing your chain of supply in favor of providing different strategies to improve the processes of the company

Anafilaxia en niños y adultos: prevención, diagnóstico y tratamiento

La anafilaxia es una condición que requiere asistencia inmediata para su resolución, se puede presentar en diferentes entornos: consultorio, hospital, escuela, hogar o en algún otro espacio público. La información aquí contenida forma parte de lineamientos conocidos sobre prevención, diagnóstico y tratamiento. Se abordan aspectos epidemiológicos, desencadenantes, factores de riesgo y cofactores; se explican de una manera didáctica los mecanismos fisiopatológicos que se traducen en fenotipos de presentación. Se enfatiza el diagnóstico clínico con base en criterios ya establecidos, se mencionan clasificaciones para evaluar la gravedad de la reacción, así como el rol de las pruebas clínicas o de laboratorio. Como aspectos de relevancia, se abordan el tratamiento de primera elección con adrenalina, instrucciones sobre autoinyectores y diferentes elementos para el tratamiento complementario y de segunda elección. También se refieren aspectos a considerar al dar de alta a un paciente y medidas de seguimiento, con un énfasis preventivo en la comunidad. Finalmente, se menciona el abordaje en el consultorio de alergia para decidir sobre opciones de inmunomodulación. ABSTRACT Anaphylaxis is a condition that requires immediate assistance for its resolution, it can occur in different settings: office, hospital, school, home or some other public space. The information contained herein forms part of known guidelines on prevention, diagnosis and treatment. Epidemiological aspects, triggers, risk factors and co-factors are addressed; physiopathological mechanisms that are translated into presentation phenotypes are explained in a didactic way. Clinical diagnosis is emphasized based on established criteria, classifications are mentioned to evaluate the severity of the reaction, as well as the role of clinical or laboratory tests. As relevant aspects, the first choice treatment with adrenaline, instructions on auto-injectors and different elements for the complementary and second choice treatment are dealt with. They also refer to aspects to consider when discharging a patient and followup measures, with a preventive emphasis on the community. Finally, the allergy clinic approach to deciding on immunomodulation options is mentione

REPLACEMENT OF FISH MEAL BY SOLID STATE FERMENTED LUPIN (LUPINUS ALBUS) MEAL WITH LACTOBACILLUS PLANTARUM 299V: EFFECT ON GROWTH AND IMMUNE STATUS OF JUVENILE ATLANTIC SALMON (SALMO SALAR)

The aim of this study was to assess quality of solid state fermented (SSF) lupin with Lactobacillus plantarum 299v, and its effects (on growth, feed utilization, digestibility and immunity) of juvenile Atlantic salmon (Salim solar), when used as fish meal replacer. Five experimental diets were formulated to provide 40% crude protein and 21% dietary lipid (dry matter basis) with the raw or fermented lupin meal-based protein source replacing fish meal at 15% and 30%. Triplicate groups of fish (averaging 3.53 +/- 0.05 g) were fed with experimental diets for 8 weeks. Fermentation process modified nutrient profile of lupin meal and enriched it with lactic, citric and acetic acids. Fish in the FL15% group showed a higher (P<0.05) final body weight, weight gain, FCR, SGR, and PER compared to those of C group. Apparent digestibility coefficient (ADC) of protein and nitrogen-free extract showed significantly higher values in FL15% experimental group, compared to those shown in C group. Fish in the FL15 % group showed a higher (P<0.05) lysozyme activity and leucocyte respiratory burst compared to that shown by fish samples in the C experimental group: phagocytic activity did not record differences among experimental groups. In conclusion, replacement of fish meal by raw or fermented lupin meal did not compromise growth, apparent digestibility coefficients and immune status of juvenile Atlantic salmon and even improved fish performance when supplemented at 15%

Compilation of the Antimicrobial Compounds Produced by <i>Burkholderia</i> Sensu Stricto

Due to the increase in multidrug-resistant microorganisms, the investigation of novel or more efficient antimicrobial compounds is essential. The World Health Organization issued a list of priority multidrug-resistant bacteria whose eradication will require new antibiotics. Among them, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacteriaceae are in the “critical” (most urgent) category. As a result, major investigations are ongoing worldwide to discover new antimicrobial compounds. Burkholderia, specifically Burkholderia sensu stricto, is recognized as an antimicrobial-producing group of species. Highly dissimilar compounds are among the molecules produced by this genus, such as those that are unique to a particular strain (like compound CF66I produced by Burkholderia cepacia CF-66) or antimicrobials found in a number of species, e.g., phenazines or ornibactins. The compounds produced by Burkholderia include N-containing heterocycles, volatile organic compounds, polyenes, polyynes, siderophores, macrolides, bacteriocins, quinolones, and other not classified antimicrobials. Some of them might be candidates not only for antimicrobials for both bacteria and fungi, but also as anticancer or antitumor agents. Therefore, in this review, the wide range of antimicrobial compounds produced by Burkholderia is explored, focusing especially on those compounds that were tested in vitro for antimicrobial activity. In addition, information was gathered regarding novel compounds discovered by genome-guided approaches

The Parkinson's Disease Sleep Scale–2 (PDSS‐2): Validation of the Spanish Version and Its Relationship With a Roommate‐Based Version

ABSTRACT Background Because of the prevalence and impact of sleep disorders in Parkinson's disease (PD), valid instruments for their evaluation and monitoring are necessary. However, some nocturnal sleep disorders may go unnoticed by patients themselves. Objectives To validate a pan‐Spanish version of the Parkinson's Disease Sleep Scale Version 2 (PDSS‐2) and to test the relationships between the PDSS‐2 and a PDSS‐2 roommate version. Methods PD patients (n = 399) from seven Spanish‐speaking countries were included. In addition to the tested PDSS‐2 scales, valid measures for sleep disorders and both motor and nonmotor manifestations were applied. Acceptability, dimensionality, reliability, precision, and construct validity were explored, as well as discrepancies and agreement between the PDSS‐2 and the roommate version. Results PDSS‐2 showed negligible floor and ceiling effects. Four factors (57% of the variance) were identified. Reliability parameters were satisfactory: alpha = 0.84; item homogeneity coefficient = 0.27; corrected item total correlation = 0.28 to 0.61; and test‐retest reliability (average kappa = 0.70; intraclass correlation coefficient [ICC] = 0.83). The standard error of measurement was 5.84, and correlations with other scales assessing nocturnal sleep were high (rS = 0.62–0.56). In comparison to the patient‐based total score, the by proxy total score showed no significant difference, high correlation (rS = 0.70), and acceptable agreement (ICC = 0.69), but there were discrepancies in two or more points in 18% of item scores. Conclusions The Spanish version of the PDSS‐2 has shown satisfactory clinimetric attributes. Acceptability and precision data are presented for the first time. The PDSS‐2 roommate version could be useful to complement the patient‐based evaluation, but additional studies are needed

Grado de acuerdo del alumnado respecto a ideas previas sobre materias académicas (PIMCD 300/2015)

Depto. de Investigación y Psicología en EducaciónFac. de EducaciónFALSEsubmitte

Ampliación del aprendizaje y evaluación de competencias específicas en el Campus Virtual

Depto. de Investigación y Psicología en EducaciónFac. de EducaciónFALSEsubmitte