Background: Mosquitoes are responsible for the transmission of many pathogens and parasites and consequently serious diseases in humans. Currently, application of plant derivatives has been suggested as an alternative bio-control technique for these medically important vectors. Methods: In this study the essential oil and methanol extract of Achilleaw...

OBJECTIVES To compare the clinical effectiveness and cost-effectiveness of larval therapy with a standard debridement technique (hydrogel). DESIGN A pragmatic, three-arm, randomised controlled trial with an economic evaluation. SETTING Community nursing services, community leg ulcer clinics and hospital outpatient leg ulcer clinics. A range of urban and rural settings. PARTICIPANTS Patien...

Variation in the phenotype or "quality" of dispersing individuals can shape colonization success and thus local dynamics and patterns of connectivity in a metapopulation. In marine reef systems, larval dispersal typically connects fragmented populations, and larval quality may be shaped by developmental history at the natal reef (e.g., parental effects) and/or by conditions in the pelagic envir...

BACKGROUND & OBJECTIVES Changes in weather patterns especially rainfall affects the distribution and densities of mosquitoes. The objective of this study was to describe mosquito aquatic habitats, to determine larval abundance, species composition, and habitat types found in Kasayani village of Kibwezi division. METHODS A cross-sectional survey of mosquito larval habitats was conducted in Kas...

Barfin flounder larvae exhibit unique black coloration, as well as left-right asymmetry in juvenile stage as in other flatfish. In this study, we first assessed the changes in melanophores with development and then investigated their responsiveness to melanin-concentrating hormone (MCH) during metamorphosis. Larval-type melanophores appeared on both sides of the body before metamorphosis, where...

Heterochronic developmental plasticity of the juvenile rudiment and larval body of sea urchin larvae occurs in response to supply of food. Evolutionary increase in egg size can also be associated with earlier development of the juvenile rudiment. We examined effects of egg volume of feeding larvae on this heterochrony and other changes in larval form. (1) Evolutionary and experimental enlargeme...

The Role of Larval Fat Cells in Starvation Resistance and Reproduction in Adult Drosophila melanogaster by Jerell Roland Aguila Dr. Deborah K. Hoshizaki, Examination Committee Chair Associate Professor of Life Sciences University of Nevada, Las Vegas The intricate life cycle of holometabolous insects includes well-defined larval and adult stages associated with feeding and non-feeding periods. ...

BACKGROUND Larval control is of paramount importance in the reduction of malaria vector abundance and subsequent disease transmission reduction. Understanding larval habitat succession and its ecology in different land use managements and cropping systems can give an insight for effective larval source management practices. This study investigated larval habitat succession and ecological parame...