Browsing Departamento de Biología by Title
Now showing items 2-21 of 32
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Aspergillosis in the Fruit Fly Drosophila melanogaster as a Model System
Aspergilloses are diseases caused by fungi of the genus Aspergillus, which affect humans and a broad spectrum of other animals. Aspergillus flavus is one of the most important pathogenic fungi, responsible for about 30% ... -
Behavioral and Intracellular Mechanisms of mGluR5 within the Nucleus Acumbens Shell During Expression of Environmental Elicited Cocaine Conditioning
Drug abuse is one of the major public health concerns affecting our society and an effective treatment for this pathology has not yet been developed. Addiction is defined as a chronic relapsing brain disease characterized ... -
Comparing Proteome Selection Pressure Among Prokaryotes and its Effects on Translational Selection
Factors such as effective population size (Ne) and proteome size modulate the interaction of selection, drift, mutation and recombination for guiding the genome evolution. Prokaryotic genomes are useful for studying these ... -
Current Status of the Long-Spined Sea Urchin Diadema Antillarum Puerto Rico
Among the key species that contribute to the stability of Caribbean coral reefs is the long spined sea urchin Diadema antillarum (Philippi, 1845), which together with herbivore fishes control macroalgae communities. The ... -
Developmental Genes in Gut Regeneration of the Sea Cucumber
Organ formation as consequence of regenerative events in adult animals has long been thought to involve processes similar to those that take place during embryological development. In previous studies on intestinal ... -
Disentangling Vine-Invaded Tropical Landscapes: From Individual Vine Patches to Vine Networks
Vines, like their woody counterparts, lianas, are increasing in abundance in several parts of the World (Warshauer et al. 1983, Mackey et al. 1996) including both tropical (Shrestha and Dangol 2014) and temperate regions ... -
Do Calves Matter?: The Effect of Number of Boats and Mode of Approach on the Behavioral and Acoustic Responses of Cetacean Groups Groups with Calves
The effect of whale watching on cetacean populations has been of popular concern since the whale watching industry increased dramatically during the past decade. Whales and dolphins show behavior and acoustic reactions ... -
Ecological Interactions of Anolis Cristatellus and Anolis Krugi in Two Secondary Tropical Karst Forests at the Northern Karst Belt of Puerto Rico: Occupancy Estimates and Degree of Omnivory/Frugivory
(2014-05-00)Anolis lizards in the Caribbean islands are a major component of diurnal communities. The natural history of Anolis lizards is well studied, however information about their feeding habits and trophic ecology remains ... -
Effects of Atmospheric Particulate Matter on the Post-Transcriptional Control of the Pro-inflamatory Mediators Interleukin-6 and Interleukin-8
Epidemiological, clinical, in vivo and in vitro studies have shown consistent associations between particulate matter (PM) exposure and the induction of pro-inflammatory responses. Post transcriptional control mechanisms ... -
Enterococcus faecalis-infecting phages (enterophages) as markers of human fecal pollution and as reservoirs of antibiotic-resistance and virulence genes
The introduction of human fecal material into water sources represents a concern to public health since pathogens could be introduced. Not all laboratories possess the facilities to detect human enteric pathogens and thus ... -
Ethnicity or location? Differential clinical profile of Alzheimer's disease among Puerto Ricans
The development of a profile of Puerto Ricans with Alzheimer’s disease (AD) patients was produced considering patients living in areas of high or low mortality rate associated with AD in Puerto Rico (PR). We compared the ... -
Evolutionary Biology Lab
(Recinto de Río Piedras, Universidad de Puerto Rico, 2010-02)Research focuses on systematics and evolution of SPIDERS and phylogeny of MAMMALS. Current spider projects include biogeography, evolution of sociality and inbreeding, biodiversity estimation, silk biomechanics, phylogeography, ... -
Function and Diversity of Benthic Biofilm Communities in Tropical Stream Ecosystems: The Relevance of Land Use and Reach Factors
Human activities represent an important cause of degradation to aquatic ecosystems. The replacement of forest cover areas by urbanization can cause changes in ecosystem function as well as the loss of species. In stream ... -
Generation and Characterization of an EFHD2 Knockout Mice
The calcium binding protein EF-hand domain 2 (EFHD2) is a novel amyloid protein associated with pathological forms of Tau in human Alzheimer's disease. Structural analyses revealed that EFHD2 contain two functional EF-hand ... -
Genetic, Physiological, and Evolutionary Correlates of Aversive Response in Component Castes of a Social Organism, the Honey Bee (Apis mellifera L.)
Escape, learned avoidance, and defensive behavior underlie adaptive response to aversive stimuli. I examined genetic, physiological, and evolutionary correlates of this response in the honey bee (Apis mellifera sp.). Many ... -
Geographic, Demographic, And Ecological Aspects Of Lepanthes (Orchidaceae) Conservation
Biodiversity conservation is one of the most convoluted environmental challenges facing humanity. Various natural and anthropogenic disturbances to the environment have contributed substantially to the extirpation of ... -
Identification and Characterization of Au-Rich Elements and Trans-Acting Factors Involved in the Posttranscriptional Regulation of Human Interleukin-3
An important aspect of the regulation of gene expression in eukaryotes is the post-transcriptional control. Adenosine/Uridine-rich elements (AU-rich elements or AREs) within the 3'-untranslated region (3'-UTR) of mRNAs ... -
Impacts of Urbanization and River Water Contaminants on Abundance, Locomotion and Aggression of a Local Freshwater Crustacean
Humanity today is experiencing a dramatic shift to urban living. Local urban environmental stressors and global ones are combining to accelerate the rates of degradation of different marine, terrestrial and freshwater ... -
Interactions Between Sleep, Macrophages and Gut Microbiota of Drosophila melanogaster
The study of the gut microbiota has taken great interest. With advances in technology of sequencing and computer analysis, it has opened great opportunities to study bacteria like never before. The presences of gut ... -
Life history, population structure, and movement of gobid fishes in tropical urban and non-urban watersheds
(Recinto de Río Piedras, Universidad de Puerto Rico, 2010-02)Concerns about the impacts and threats to stream ecosystems are augmenting as urbanization in Puerto Rico is increasing at a rapid rate. Pollution, channelization and damming are some of these threats associated with ...