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Articles 1 - 17 of 17
Full-Text Articles in Life Sciences
Towards Sustainable Aquafeeds: Evaluating Substitution Of Fishmeal With Lipid-Extracted Microalgal Co-Product (Nannochloropsis Oculata) In Diets Of Juvenile Nile Tilapia (Oreochromis Niloticus), Pallab K. Sarker, Anne R. Kapuscinski, Ashley Y. Bae, Emily Donaldson, Devin S. Fitzgerald, Oliver F. Edelson
Towards Sustainable Aquafeeds: Evaluating Substitution Of Fishmeal With Lipid-Extracted Microalgal Co-Product (Nannochloropsis Oculata) In Diets Of Juvenile Nile Tilapia (Oreochromis Niloticus), Pallab K. Sarker, Anne R. Kapuscinski, Ashley Y. Bae, Emily Donaldson, Devin S. Fitzgerald, Oliver F. Edelson
Dartmouth Scholarship
Microalgae companies increasingly seek markets for defatted biomass that is left over after extracting omega-3 rich oil for human nutraceuticals and crude oil for fuels. Such a protein-rich co-product is a promising alternative to unsustainably sourced fishmeal in aquaculture diets. We report the first evaluation of co-product of the marine microalga Nannochloropsis oculata(N. oculata co-product) for replacing fishmeal in diets of Nile tilapia, a globally important aquaculture species. We conducted a nutrient digestibility experiment with N. oculata dried whole cells and N. oculata co-product, followed by an 84-day nutritional feeding experiment with N. oculata co-product. N. oculata co-product, more nutrient-dense …
Idiosyncratic, Retinotopic Bias In Face Identification Modulated By Familiarity, Matteo Visconti Di Oleggio Castello, Morgan Taylor, Patrick Cavanagh, Maria Ida Gobbini
Idiosyncratic, Retinotopic Bias In Face Identification Modulated By Familiarity, Matteo Visconti Di Oleggio Castello, Morgan Taylor, Patrick Cavanagh, Maria Ida Gobbini
Dartmouth Scholarship
The perception of gender and age of unfamiliar faces is reported to vary idiosyncratically across retinal locations such that, for example, the same androgynous face may appear to be male at one location but female at another. Here we test spatial heterogeneity for the recognition of the identity of personally familiar faces in human participants. We found idiosyncratic biases that were stable within participants and that varied more across locations for low as compared to high familiar faces. These data suggest that like face gender and age, face identity is processed, in part, by independent populations of neurons monitoring restricted …
Drosophila Species Learn Dialects Through Communal Living, Balint Z. Kacsoh, Julianna Bozler, Giovanni Bosco
Drosophila Species Learn Dialects Through Communal Living, Balint Z. Kacsoh, Julianna Bozler, Giovanni Bosco
Dartmouth Scholarship
Many species are able to share information about their environment by communicating through auditory, visual, and olfactory cues. In Drosophila melanogaster, exposure to para- sitoid wasps leads to a decline in egg laying, and exposed females communicate this threat to naïve flies, which also depress egg laying. We find that species across the genus Drosophila respond to wasps by egg laying reduction, activate cleaved caspase in oocytes, and communicate the presence of wasps to naïve individuals. Communication within a species and between closely related species is efficient, while more distantly related species exhibit partial communication. Remarkably, partial communication between …
Modeling Semantic Encoding In A Common Neural Representational Space, Cara E. Van Uden, Samuel A. Nastase, Andrew C. Connolly, Ma Feilong, Isabella Hansen, M Ida Gobbini, James V. Haxby
Modeling Semantic Encoding In A Common Neural Representational Space, Cara E. Van Uden, Samuel A. Nastase, Andrew C. Connolly, Ma Feilong, Isabella Hansen, M Ida Gobbini, James V. Haxby
Dartmouth Scholarship
Encoding models for mapping voxelwise semantic tuning are typically estimated separately for each individual, limiting their generalizability. In the current report, we develop a method for estimating semantic encoding models that generalize across individuals. Functional MRI was used to measure brain responses while participants freely viewed a naturalistic audiovisual movie. Word embeddings capturing agent-, action-, object-, and scene-related semantic content were assigned to each imaging volume based on an annotation of the film. We constructed both conventional within-subject semantic encoding models and between-subject models where the model was trained on a subset of participants and validated on a left-out participant. …
Feeding The World With Die Rolls: Potential Applications Of Quantum Computing
Feeding The World With Die Rolls: Potential Applications Of Quantum Computing
Dartmouth Undergraduate Journal of Science
No abstract provided.
The Mouhefanggai And Cavalieri's Principle
The Mouhefanggai And Cavalieri's Principle
Dartmouth Undergraduate Journal of Science
No abstract provided.
Ethical Regulation Of Medical Experiments On Humans, Nick Awertschenko
Ethical Regulation Of Medical Experiments On Humans, Nick Awertschenko
Dartmouth Undergraduate Journal of Science
No abstract provided.
The Science Behind Memory: Hippocampal Neural Cell Assemblies, Nishi Jain
The Science Behind Memory: Hippocampal Neural Cell Assemblies, Nishi Jain
Dartmouth Undergraduate Journal of Science
No abstract provided.
The Immunity Of The Many: Ethical Considerations Of Vaccinations In Light Of Herd Immunity, Sophia Koval
The Immunity Of The Many: Ethical Considerations Of Vaccinations In Light Of Herd Immunity, Sophia Koval
Dartmouth Undergraduate Journal of Science
No abstract provided.
Frontiers In Dna Synthesis: Click Chemistry
Frontiers In Dna Synthesis: Click Chemistry
Dartmouth Undergraduate Journal of Science
No abstract provided.
Cilia And Flagella: From Discovery To Disease, Dylan J. Cahill
Cilia And Flagella: From Discovery To Disease, Dylan J. Cahill
Dartmouth Undergraduate Journal of Science
No abstract provided.
Letter From The Editor
Dartmouth Undergraduate Journal of Science
No abstract provided.
Cddo-Me Attenuates Inflammation In Healthy And Systemic Sclerosis Macrophages, Saemi Han, Rajan Bhandari, Patricia A. Pioli
Cddo-Me Attenuates Inflammation In Healthy And Systemic Sclerosis Macrophages, Saemi Han, Rajan Bhandari, Patricia A. Pioli
Wetterhahn Science Symposium Posters 2018
No abstract provided.
Predicting Mercury Levels In Freshwater Fish Through Biotic And Abiotic Factors: A Case Study Of Nantucket Island, Callum Hoyt Backstrom, Celia Y. Chen, Kate Buckman
Predicting Mercury Levels In Freshwater Fish Through Biotic And Abiotic Factors: A Case Study Of Nantucket Island, Callum Hoyt Backstrom, Celia Y. Chen, Kate Buckman
Wetterhahn Science Symposium Posters 2018
No abstract provided.
First Stewards: Ecological Outcomes Of Forest And Wildlife Stewardship By Indigenous Peoples Of Wisconsin, Usa, Donald M. Waller, Nicholas J. Reo
First Stewards: Ecological Outcomes Of Forest And Wildlife Stewardship By Indigenous Peoples Of Wisconsin, Usa, Donald M. Waller, Nicholas J. Reo
Dartmouth Scholarship
Indigenous peoples manage forestlands and wildlife differently than public and private forestland managers. To evaluate ecological outcomes from these differences, we compared the structure, composition, and diversity of Ojibwe and Menominee tribal forests to nearby nontribal forestlands in northern Wisconsin. These indigenous peoples seek to manage forests for mature conditions, accommodate wolves and other predators, and hunt deer to sustain traditional livelihood values. Their forests are often more mature with higher tree volume, higher rates of tree regeneration, more plant diversity, and fewer invasive species than nearby nontribal forestlands. In contrast, nontribal forestlands lost appreciable plant diversity in the 20th …
Mechanisms Underlying Serotonergic Excitation Of Callosal Projection Neurons In The Mouse Medial Prefrontal Cortex, Emily K. Stephens, Arielle L. Baker, Allan T. Gulledge
Mechanisms Underlying Serotonergic Excitation Of Callosal Projection Neurons In The Mouse Medial Prefrontal Cortex, Emily K. Stephens, Arielle L. Baker, Allan T. Gulledge
Dartmouth Scholarship
Serotonin (5-HT) selectively excites subpopulations of pyramidal neurons in the neocortex via activation of 5-HT2A (2A) receptors coupled to Gq subtype G-protein alpha subunits. Gq-mediated excitatory responses have been attributed primarily to suppression of potassium conductances, including those mediated by KV7 potassium channels (i.e., the M-current), or activation of non-specific cation conductances that underlie calcium-dependent afterdepolarizations (ADPs). However, 2A-dependent excitation of cortical neurons has not been extensively studied, and no consensus exists regarding the underlying ionic effector(s) involved. In layer 5 of the mouse medial prefrontal cortex, we tested potential mechanisms of serotonergic excitation …
First Stewards: Ecological Outcomes Of Forest And Wildlife Stewardship By Indigenous Peoples Of Wisconsin, Usa, Donald M. Waller, Nicholas J. Reo
First Stewards: Ecological Outcomes Of Forest And Wildlife Stewardship By Indigenous Peoples Of Wisconsin, Usa, Donald M. Waller, Nicholas J. Reo
Dartmouth Scholarship
Indigenous peoples manage forestlands and wildlife differently than public and private forestland managers. To evaluate ecological outcomes from these differences, we compared the structure, composition, and diversity of Ojibwe and Menominee tribal forests to nearby nontribal forestlands in northern Wisconsin. These indigenous peoples seek to manage forests for mature conditions, accommodate wolves and other predators, and hunt deer to sustain traditional livelihood values. Their forests are often more mature with higher tree volume, higher rates of tree regeneration, more plant diversity, and fewer invasive species than nearby nontribal forestlands. In contrast, nontribal forestlands lost appreciable plant diversity in the 20th …