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Primer registro de Lucilia eximia (Wiedemann, 1819) (Diptera: Calliphoridae) asociada con Stapelia gigantea L. (Apocynaceae) en Venezuela
submitted by pporminteir 22 minutes ago - Topic: Agriculture
Lucilia eximia (Wiedemann, 1819) es un díptero califórido con distribución Neártica y Neotropical que se encuentra frecuentemente en áreas urbanas. Las larvas se alimentan primariamente de carroña, pero también de frutas y desechos urbanos. En el presente estudio se registra por primera vez la presencia de L. eximia en las flores de Stapelia giga...



Relaciones biogeográficas de Papilionidae, Pieridae y Nymphalidae (Lepidoptera: Papilionoidea) en el bosque mesófilo de montaña de México
submitted by pporminteir 22 minutes ago - Topic: Agriculture
Se estudió la fauna de mariposas (Papilionidae, Pieridae y Nymphalidae) en los bosques mesófilos de montaña de México para inferir sus patrones de distribución, utilizando el Análisis de Parsimonia de Endemismos (PAE), con base en 14 unidades geográficas y 459 taxones. Se obtuvieron cinco cladogramas de áreas que tras la aplicación ...

Nuevos registros de Callibaetis Eaton, Mayobaetis Mayo y Paracloeodes Day (Insecta, Ephemeroptera, Baetidae) para Venezuela
submitted by pporminteir 22 minutes ago - Topic: Agriculture
Se registran por primera vez los géneros Callibaetis Eaton y Paracloeodes Day para Venezuela y se añade una nueva localidad para Mayobaetis Mayo. Callibaetis radiatus Navas, 1920 se logró identificar a partir de ninfas criadas hasta la emergencia de los adultos; Paracloeodes pakawara Nieto and Salles, 2006 y Mayobaetis ellenae (Mayo, 1973), con base en las ninfas. La colect...

Primer registro de Rhionaeschna psilus (Calvert, 1947) (Odonata: Aeshnidae) para el Estado Zulia, Venezuela
submitted by pporminteir 22 minutes ago - Topic: Agriculture
Se registra por primera vez la presencia de la especie Rhionaeschna psilus (Calvert, 1947) para el estado Zulia, Venezuela. Los ejemplares fueron capturados en uno de los tributarios del río Negro (500 m) ubicado antes del poblado de Shirimi, y en la Laguna de Kunana (1 110 m) del Parque Nacional Sierra de Perijá. Se da una breve descripción de la morfología externa,...

Dinámica poblacional de Frankliniella occidentalis (Pergande) y Thrips tabaci Lindeman en cultivos de papa (Solanum tuberosum)
submitted by pporminteir 22 minutes ago - Topic: Agriculture
Frankliniella occidentalis (Pergande) y Thrips tabaci Lindemann son transmisores del Tospovirus TSWV (Tomato Spotted Wilt Virus) en papa. Ante la falta de información sistematizada de la presencia de ambos trips en cultivos de papa, se estudió la dinámica poblacional de los mismos. En la temporada 2009-2010, en las variedades Innovator y Shepody se ubicó una trampa M...



Evaluación del tipo de trampa, atrayente alimenticio y feromona de agregación en el trampeo del picudo del agave Scyphophorus acupunctatus Gyllenhal en Tamaulipas, México
submitted by pporminteir 22 minutes ago - Topic: Agriculture
Con la finalidad de establecer un programa de trampeo del picudo del agave (Scyphophorus acupunctatus Gyllenhal) en Tamaulipas, México, se evaluaron tres tipos de trampas (bandeja, garrafa y estaca) en combinación con atrayentes alimenticios (melaza y agave tequilero) y feromona de agregación de este insecto. Los tratamientos fueron evaluados de enero a diciembre del 2010. ...

Respuesta funcional de la larva de Pseudodoros clavatus (Fabricius, 1794) (Diptera: Syrphidae) al áfido negro del matarratón Aphis craccivora Koch, 1854 (Hemiptera: Aphididae)
submitted by pporminteir 22 minutes ago - Topic: Agriculture
Se determinó la respuesta funcional de la larva de Pseudodoros clavatus (Fabricius, 1794) al áfido negro del matarratón [Gliricidia sepium (Jacq.) Kunth ex Walp. (Fabaceae)] Aphis craccivora Koch, 1854 bajo condiciones de laboratorio. Esta respuesta fue estudiada a las densidades de 30, 40, 50, 60, 70, 80 y 100 áfidos (ninfas de tercer y cuarto instar). Varios modelo...


Improvement in survival associated with embolisation of spontaneous portosystemic shunt in patients with recurrent hepatic encephalopathy
submitted by koimpfireo 23 minutes ago - Topic: Health
Spontaneous portosystemic shunt (SPSS) is a frequent cause of recurrent hepatic encephalopathy (HE) in patients with cirrhosis. To assess the effectiveness and optimal candidate selection for embolisation of SPSS, for the treatment of recurrent HE in patients with cirrhosis. This retrospective cohort study compared 17 patients with recurrent HE who achieved complete occlusion of SPSS by angiogr...

Join the Art Club: Exploring Social Empowerment in Art Therapy
submitted by mythamethros 24 minutes ago - Topic: Health
Social Empowerment Art Therapy (SEAT) aims to address the stigma of mental illness through the artistic empowerment of participants. The model was developed within an inpatient psychiatric setting from observations of a shared governance structure that empowered residents. Incorporating an open art studio approach and social action art therapy, key aspects of SEAT are: (a) voluntary participati...


Individualised antibiotic dosing for patients who are critically ill: challenges and potential solutions
submitted by iddeiback2 25 minutes ago - Topic: Health
Infections in critically ill patients are associated with persistently poor clinical outcomes. These patients have severely altered and variable antibiotic pharmacokinetics and are infected by less susceptible pathogens. Antibiotic dosing that does not account for these features is likely to result in suboptimum outcomes. In this Review, we explore the challenges related to patients and pathoge...

Nutritional status affects the capacity of the snail Concholepas concholepas to synthesize Hsp70 when exposed to stressors associated with tidal regimes in the intertidal zone
submitted by oot 25 minutes ago - Topic: Biology
Synthesis of the heat shock protein Hsp70 is one of the most important physiological mechanisms that intertidal organisms possess to counteract damage to macromolecules caused by stressors associated with the tidal cycle. However, the synthesis and activity of Hsp70 involves an elevated energetic cost. We evaluated the effect of the nutritional status (fed vs. starved for 2 weeks) of juvenile ...


Species-specific bioluminescence facilitates speciation in the deep sea
submitted by oot 25 minutes ago - Topic: Biology
The vast darkness of the deep sea is an environment with few obvious genetic isolating barriers, and little is known regarding the macroevolutionary processes that have shaped present-day biodiversity in this habitat. Bioluminescence, the production and emission of light from a living organism through a chemical reaction, is thought to occur in approximately 80 % of the eukaryotic life that in...

Effects of micro- and mesograzers on intertidal macroalgal recruitment
submitted by oot 25 minutes ago - Topic: Biology
This study examined the effects of a guild of micrograzing harpacticoid copepods (dominated by two species of Paradactylopodia sp. nov. and one species of Scutellidium sp. nov.) and a mesograzing periwinkle, Afrolittorina praetermissa, on the early recruitment of intertidal macroalgae on a wave-exposed, rocky shore. This is the first study, to our knowledge, to examine the effects of micrograze...

Movement patterns of juvenile sand tigers (Carcharias taurus) along the east coast of the USA
submitted by oot 25 minutes ago - Topic: Biology
To date, movement patterns of juvenile sand tigers (Carcharias taurus) along the east coast of the USA have been loosely defined. Given the magnitude of the purported decline in the sand tiger population in the western North Atlantic (WNA), characterization of the species’ movement patterns throughout this broad area is essential for the effective management and recovery of this population. U...

Molecular phylogeny and DNA barcoding of tropical eastern Pacific shallow-water gorgonian octocorals
submitted by oot 25 minutes ago - Topic: Biology
The octocoral fauna inhabiting the shallow waters (...