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Dissertations / Theses on the topic 'Plurality of species categories'

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1

Дибченко, Я. П. "До питання співвідношення форм, видів та методів фінансового контролю". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66405.

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Фінансовий контроль є поняттям із досить широким та ємним змістом. Множинність видових категорій зумовлює питання їх розмежування, оскільки вони мають спільні риси за своєю спрямованістю та основною функцією – контролем. Саме тому виникають дискусії з приводу розмежування форм, методів та видів фінансового контролю, оскільки їх часто ототожнюють, що в свою чергу зумовлює плутанину у віднесенні певних елементів до конкретної категорії.
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2

Juan, Ayala Octavio de. "La interrelación música pintura: un análisis comparativo actualizado de sus principales fundamentos técnicos y expresivos." Doctoral thesis, Universidad de Murcia, 2010. http://hdl.handle.net/10803/10885.

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Tres ideas fundamentales: el correlato neuronal musicopictórica, la posible existencia de universales en la música y la pintura, y el fenómeno de la evocación pictórica<br>Threefundamental ideas: The neural music painting correlate, the possibility of universals in music and painting and the phenomenon of music painting evocation<<br>Fazit: Drei Wesentliche ideen: Das neuronales musicopictorisches korrelat, Mögliche universalien in musik und malerei und das phänomen der evocation zwischen musik und malerei
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3

Kamanu, Timothy K. "Species-independent MicroRNA Gene Discovery." Diss., 2012. http://hdl.handle.net/10754/263237.

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MicroRNA (miRNA) are a class of small endogenous non-coding RNA that are mainly negative transcriptional and post-transcriptional regulators in both plants and animals. Recent studies have shown that miRNA are involved in different types of cancer and other incurable diseases such as autism and Alzheimer’s. Functional miRNAs are excised from hairpin-like sequences that are known as miRNA genes. There are about 21,000 known miRNA genes, most of which have been determined using experimental methods. miRNA genes are classified into different groups (miRNA families). This study reports about 19,00
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4

Bangal, Priti Pandurang. "Understanding Rules of Assembly and Species Interactions in Mixed-species Bird Flocks." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4432.

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In mixed-species bird flocks (flocks hereafter), participants vary in their degree of similarity with each other. Flock participants can gain group size (supplementary) benefits by choosing similar flock partners, or complementary benefits from dissimilar partners. The nature of benefits, therefore varies based on overall similarity in the flock. Earlier research has shown that flocks world over tend to be phenotypically clumped and that intraspecifically gregarious species are important benefit providers. In this thesis, I examine changing patterns of associations and species importance
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5

Singh, Saumya. "Identifying Bacterial Species, Detecting Antibiotic Resistance and Susceptibilities in Clinical Samples Using Raman Spectroscopy." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/6065.

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Over the past few decades, Raman spectroscopy has found enormous applications in biology and medicine. Raman micro-spectroscopy is highly sensitive to the structure and composition of molecules and their surrounding moieties present in a sample. This technique is label-free and non-invasive and offers a significant advantage over other methods involving minimal sample preparation and water interference. Raman spectroscopy combined with various chemometrics methods can provide molecular insights into several biochemical processes. This thesis discusses the application of Raman spectroscopy in i
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6

Theo, Anne Heloise. "Diversity and distribution of mixed-species foraging groups in the Lakshadweep Islands, India." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5793.

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Species interactions are known to shape biological communities. While antagonistic interactions like competition and predation are well known, cooperative interactions have received comparatively less attention. Mixed-species foraging behaviour is a common phenomenon seen across various taxa including fish, birds and mammals, where different species form groups and forage together. Unlike symbiotic associations, these interactions are more dynamic and include a much larger subset of species of the community. We sampled mixed-species groups (MSG) of reef fish in the Lakshadweep islands, off the
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7

Jana, Ananya. "Diversity from the Gut to Species: Phylogeny, Population genetics and Microbiome of the Antilope cervicapra." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/5033.

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Evolutionary relationships between members of the Antilopina taxon have been much debated in recent years. The ‘true antelope’ clade is currently comprised of 4 genera viz., Gazella, Nanger, Eudorcas and the monotypic genus Antilope, that includes A. cervicapra. Most studies have focused on the mitochondrial genome or morphological data to study their relationships. However, signals from mitochondrial data can often be misleading when compared with nuclear markers, as has been shown in multiple taxonomic groups. In this study, we revisit the phylogenetic relationships among members of Antilopi
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8

Bag, Sampad. "Towards Electronic Scale Dynamics of Chemical Bonding in Isolated Molecules and Solvated Species." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5802.

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The chemical bonding in molecules and molecular clusters is determined by the nature of the electron density distribution between the atoms. Over the past century, different theories such as Lewis’s bond, valence-bond theory, molecular orbital theory, and frontier molecular orbital theory, have explained static chemical bond in terms of electron density and their symmetry. Over the past century, “dynamic” nature of the chemical bond has been explored by monitoring the nuclear dynamics in femtosecond and picosecond time regimes. In my thesis work, mostly a computational attempt has been made to
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9

Govardhan, Gaurav. "Simulations of Aerosol Species over the Indian Region: Evaluation and Improvements." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/4113.

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Increasing aerosol loading over the south Asian region, holds a potential of, perturbing the south Asian monsoon system and the Himalayan glacial coverage, and thus affecting lives of (1/4)th of the world’s population. Though space-based or ground-based measurements assists us in keep-ing an account of the composite aerosol loading over the region, they have their own limitations. Numerical models on the other hand help us, regionalize our understanding of aerosol-climate interactions and moreover, predict future scenarios, which makes them a favorite tool of policy makers. Nonetheless, realiz
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10

Paul, Avraneel. "Mechanism of the Development of Genetic Resistance to Antibiotics Mediated by three Reactive Oxygen Species in Mycobacterium smegmatis." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5568.

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Bacteria use different means to survive in the continued presence of antibiotics. We find that upon prolonged exposure to antibiotics, mycobacteria put up a triphasic response comprised of a logarithmic reduction of the population, followed by the maintenance of an antibiotic surviving population (ASP), from which genetic resisters to the antibiotic emerge de novo. We had earlier reported that the cells in the ASP are at a high oxidative state compared to the cells in the mid-log phase (MLP) population. These cells were found to generate significantly high levels of hydroxyl radical that infli
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11

Taritla, Sidhartha. "Isolation, structure elucidation and increasing anticancer efficacy of an anti-cancer secondary metabolite from a marine-derived endophytic fungus, Aspergillus species." Thesis, 2023. https://etd.iisc.ac.in/handle/2005/6149.

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Cancer is the leading cause of mortality globally, contributing to ~10 million fatalities in 2020, or roughly one in every six deaths, according to global cancer statistics 2020. Around 50% of all small molecules approved for treatment of cancer between the 1940s and the end of 2014 are comprised of either naturally occurring substances or compounds that were synthesized using those substances. The majority of bioactive chemicals are obtained from terrestrial microorganisms, and while the terrestrial environment is abundant in bioactive producers, the finding of new metabolites is withering. M
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12

Gupta, Satyajeet. "Through the looking glass: Phoresy as seen in the light of mutualism." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4859.

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Phoresy is the dispersal of small organisms on larger ones to move out of an unfavourable habitat. Although these interactions are transient, they can form tight links with mutualistic interactions if the phoretic organisms are dependent on both mutualistic partners, one serving as a vehicle with the other providing a substratum for development. These linked tripartite interactions may further lead to increase in host specificity in phoretic organisms. Therefore, to understand the effects of phoretic interactions on the entire mutualistic system and factors that can help the phoretic organisms
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13

Singh, Namrata. "Development of Nanomaterials as Antioxidant Enzyme Mimetics for Cellular Redox Homeostasis." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/5344.

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Nanomaterials possess a myriad of potential in various biomedical fields such as cancer diagnostics, biosensing, imaging, immunoassay, drug delivery and therapeutics etc. In particular, the ability of the nanozymes to modulate the catalytic activities and biological functions of natural enzymes attracts burgeoning interest for various biomimetic applications. There is a significant relevance of nanozymes which can regulate the reactive oxygen species (ROS) levels in cells, mimicking the cellular antioxidant enzymes due to their possible therapeutic potential in various oxidative stress related
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14

Khaleel, Mehreen. "Distribution, activity budget and feeding ecology of Himalayan gray langur (Semnopithecus ajax) in Kashmir Himalaya." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4565.

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Colobines are group of primates known to inhabit harsh environments. These habitats pose different challenges which they have coped up physiologically and behaviourally. Primates in such environments are subjected to prolonged scarcity of food and low temperature in winters. They are expected to allocate their time to various activities optimally in order to balance their energy requirements. One such primate inhabiting the harsh climates of Himalaya is Himalayan gray langur. Himalayan gray langur is little-known endangered primate, initially reported to be present in few parts of north-weste
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15

Sharath, Babu B. N. "Isoform Specific Synthetic Glutathione Peroxidase Mimetics in Redox Regulation of Cell Death and Diseases." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/6083.

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Reactive oxygen species (ROS)-induced oxidative stress has been implicated in various pathologies and cell death processes. Cells have antioxidant systems to neutralize the harmful effects of excess ROS. Glutathione peroxidases (GPXs) are the key antioxidant enzymes that catalyze the reduction of H2O2 or organic hydroperoxides to water or the corresponding alcohols using glutathione (GSH). In humans, eight GPX isoforms are found, of which GPX1, GPX2, GPX3, GPX4, and GPX6 are selenoproteins containing selenocysteine (Sec) in their active site. Each isoform has unique characteristics and specifi
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16

Bharti, D. K. "Dispersal Patterns and Processes in Littorinid Snails along the Indian Coastline." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4942.

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Dispersal has important ecological and evolutionary consequences for a species. Marine dispersal is unique because of facilitation by ocean currents, where oceanography interacts with species traits and environmental heterogeneity to determine connectivity between populations. However, marine dispersal research has largely focussed on coral reefs and temperate shores, while tropical coastlines remain poorly studied. To address this gap in knowledge, we studied dispersal patterns and processes along the Indian coastline using two genera of intertidal littorinid snails (Littoraria and Echinolitt
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17

Shee, Somnath. "Manipulating Bacterial and Host Reactive Oxygen Species (ROS)- based mechanisms to potentiate killing of Mycobacterium tuberculosis (Mtb)." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5680.

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Mycobacterium tuberculosis (Mtb) is evolutionarily equipped to resist exogenous reactive oxygen species but shows vulnerability to an increase in endogenous ROS (eROS). Since eROS is an unavoidable consequence of aerobic metabolism, understanding how eROS levels are controlled is essential yet remains uncharacterized. By combining the Mrx1-roGFP2 redox biosensor with transposon mutagenesis, we identified 368 genes (redoxosome) responsible for maintaining non-toxic levels of eROS in Mtb. Integrating redoxosome with a global network of protein-protein interactions and transcriptional regulators
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18

Gupta, Kavya. "Understanding the role of hydrogen sulfide in regulating redox homeostasis and inflammation during cellular senescence." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5653.

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Aging involves the time-dependent deterioration of physiological functions, which can be attributed to various factors. Cellular senescence has been shown to be akin to aging, which involves alteration in redox homeostasis associated with an increase in reactive oxygen/nitrogen species (ROS/RNS), inflammatory gene expression, and senescence-associated beta-galactosidase activity, all markers of aging. Recently, it was proposed that gasotransmitters which include carbon monoxide (CO), hydrogen sulfide (H2S), and nitric oxide (NO), may also play an important role in regulating redox homeostasis
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19

Gordon, Andrew Ross. "People and Fish in Fiji: an ethnobiological study of a coral reef ecosystem." Master's thesis, 2010. http://hdl.handle.net/10048/1171.

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Thesis (M.A.)--University of Alberta, 2010.<br>Title from pdf file main screen (viewed July 27, 2010). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Arts, Dept. of Anthropology". Includes bibliographical references.
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