990 search results for “biological cock” in the Public website
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Giant barrel sponges in diverse habitats: a story about the metabolome
Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.
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In silico characterization of a GPCR focused library
Supervisor: Gerard van Westen
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Exploring chemical space in covalent and competitive glycosidase inhibitor design
Glycoside hydrolases (glycosidases/GHs) are widely abundant enzymes in all kingdoms of life and are important biocatalysts that catalyze the hydrolysis of glycosidic linkages in oligo/polysaccharides, glycoproteins and glycolipids with tremendous efficiency
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Rudaz Serge
School of pharmaceutical sciences, University of Geneva - Switzerland
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Lipid signaling and inflammation: metabolomics for better diagnosis and treatment strategy
Lipid signaling is an essential biological event/process in a plethora of pathophysiological conditions. The underlying idea of this thesis is that many of the roles and the complex interplay of the individual signaling lipids in inflammatory processes and related conditions in health and disease is…
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Alvaro Viljoen
Professor at the Department of Pharmaceutical Sciences, Tshwane University of Technology, Pretoria - South Africa
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Target Discovery
The goal of target discovery is to identify and validate proteins and biological pathways that are involved in the disease process. Modulating these target proteins and pathways with small molecules, therapeutic proteins or other biomolecules (e.g. mRNA) could deliver an effective and safe drug or v…
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High-throughput profiling of small molecules using mass spectrometry
Promotor: Prof.dr. T. Hankemeier, Co-Promotor: R.J. Vreeken
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Bioactivity based quality control for Chinese herbal medicine
Can we establish a new quality control system for herbal medicines that is based on bioactivity rather than a few abundant chemicals?
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Design and development of conformational inhibitors and activity-based probes for retaining glycosidases
Glycosidases are essential in fundamental biological processes and are responsible for the degradation of most (oligo)saccharides, glycolipids and glycoproteins.
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Applications of Natural Deep Eutectic Solvents to Extraction and Preservation of Biomolecules
The recently introduced nature-originated deep eutectic solvents, so-called natural deep eutectic solvents (NADES) are considered as truly green solvents, which composed of natural ingredients found abundantly in organisms.
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Career prospects
The Biological- and Soft-Matter Physics specialisation is an excellent preparation for pursuing a PhD degree in physics.
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Thiosugars: reactivity, methodology and applications
Carbohydrates, alongside proteins and nucleic acids, constitute a crucial and versatile family of biomolecules present in all life forms. They manifest as monosaccharides, oligosaccharides, and polysaccharides, covalently bonded to proteins and fats. Carbohydrates are integral to plant and arthropod…
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Research
Biotherapeutics or biologics, such as proteins, peptides, and nucleic acids, comprise an increasing share of the pharmaceutical market, whilst offering new therapies for difficult-to-treat diseases. Most notable is their contribution to the vaccination efforts during the COVID-19 pandemic. In most cases,…
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LED3 Lecture: Controlling Biological Function with Synthetic Photoswitches
Lecture
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Van Marum Colloquium: Biologically Inspired Catalytic Systems for Solar-to-Fuel Technologies
Lecture
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Dual appointment of seven new Medical Delta professors
Seven new Medical Delta professors revealed their research plans in a lecture marathon on 21 June. The professors at Leiden University, the LUMC, Delft University of Technology and the Erasmus Medical Centre Rotterdam operate at the interface between life sciences and health and technology.
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LIC Lecture: Biological applications of anion-selective transmembrane carriers
Lecture
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Understanding functional dynamics and conformational stability of beta-glycosidases
Due to their central physiological roles in living organisms, retaining beta-glycosidases have been the subject of tremendous research efforts to examine their structure/function relation using numerous biophysical and biochemical approaches.
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Direct and two-step activity-based profiling of proteases and glycosidases
Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel
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Developing metabolomics for a systems biology approach to understand Parkinson's disease
Neurodegenerative diseases, including Parkinson’s disease (PD), are increasing in prevalence due to the aging population. Despite extensive study, these diseases are still not fully understood and the lack of personalised treatment options that can target the cause of the diseases, rather than the symptoms,…
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Combined LC/MS-platform for analysis of all major stratum corneum lipids, and the profiling of skin substitutes
Ceramides (CERs), cholesterol, and free fatty acids (FFAs) are the main lipid classes in human stratum corneum (SC, outermost skin layer), but no studies report on the detailed analysis of these classes in a single platform.
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Discoveries in 2023
From nanoparticles to colliding ice planets and from biological origami to new x-ray scanner techniques: this year again, our scientists have made wonderful discoveries. From the largest numbers to the smallest molecules and from the oldest galaxies up to the latest algorithms, take a look at each institute's…
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NeCEN
With the powerful electron microscopes at NeCEN we study abnormalities in cells of blood vessels in cardiovascular disease, the interaction between pathogens and hosts in infectious diseases, molecular processes that cause cancer and the interaction between drugs and target proteins. Drug development…
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Research
Within the Chinese medicine, more than 80% of the constituents of the preparations are derived from plants. Like any other organism, plants are constantly interacting with their changing and often harsh environment during the various phases of their life cycle.
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Overview
Our research is aimed at a smoother and speedier transition from preclinical research to pharmacological interventions, and the delivery of drugs in the human body by use of small molecules and biologics.
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Inhibitor discovery of phospholipases and N-acyltransferases
In this thesis an activity-based probe was discovered that could visualize the activity of PLAATs. With an optimized gel-based ABPP assay in hand, screening of a compound library led to the discovery of alpha-ketoamides as a hit for PLAAT3.
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Systems diagnosis of chronic diseases, explored by metabolomics and ultra-weak photon emission
Promotor: J. van der Greef; Co-promotor: E. van Wijk, M. Wang
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Shape Analysis for Phenotype Characterisation from High-throughput Imaging
We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.
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Theoretical Physics
In the spirit of 'unity in diversity', our objective is to promote insight into and appreciation for the wonder that the same physical laws and mathematical concepts apply to the whole of nature, from the largest to the smallest energy and length scales. We strive for the application of abstract theoretical…
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Molecular, Cellular and Organismal Biology (MSc)
The master's specialisation Molecular, Cellular and Organismal Biology at Leiden University examines the molecular mechanisms underlying health and disease and how cells and organisms adapt to environmental factors.
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About the programme
Are you interested in the neurocognitive and biological roots of learning, behaviour and emotions in children? If so, the programme in Applied Neuroscience in Human Development might be the specialisation you are looking for.
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Non-covalent Interactions
Many biological processes occur by biomolecules coming together and organizing into specific clusters without being bound to each other. These interactions range from clustering, transiently interacting (kiss and run), or assembling to multimeric units that can only function in conjunction. The hydrogen…
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Why not sing? Reconstructing the evolution of female and male bird song
Female and male songbirds sing equally elaborate songs in some species, but in others, females do not sing like males or not at all. How did such pronounced differences in male and female communication evolve?
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Skin Deep? Reading the Surfaces of the Body in Ancient Greek Literature and Science
The skin has recently gained attention within body studies for its many specific cultural and social associations, in addition to its biology. This project aims to examine the different layers of meaning and the functions invested in the skin in ancient Greece: how did ancient Greek literary and medical…
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Leiden Institute of Chemistry
The chemical industry must continue to innovate for a more sustainable, healthier society. The reseachers from the Leiden Institute of Chemistry (LIC) contribute by applying their knowledge to themes such as sustainability, energy and health.
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About the programme
The MSc programme Physics offers 5 research-oriented specialisations where you can focus on Theoretical Physics, Quantum Matter and Optics, Biological and Soft Matter, or Cosmology. You can also combine Physics with education, management or science communication.
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Programme structure
The research master's specialisation Clinical and Health Psychology consists of five main parts: the general courses, the specialisation-specific courses, the elective courses, a research internship and a thesis.
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mRNA and drug delivery with lipid-based nanoparticles
This thesis focuses on the application of lipid-based nanomedicine in drug delivery, including small molecular antitumor drugs and biomacromolecules including mRNA, and evaluates their biological performance.
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The synthesis of mannose-derived bioconjugates and enzyme inhibitors
Promotores: H.S. Overkleeft, G.A. van der Marel, Co-Promotor: J.D.C. Codee
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Flow Cytometry Core Facility
The LUMC Flow Cytometry Core Facility accommodates all research and diagnostic flow cytometry equipment of the LUMC.
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Triple Bioorthogonal Ligation Strategy for Simultaneous Labeling of Multiple Enzymatic Activities
Three at the same time: a ligation strategy combining tetrazine–norbornene cycloaddition, Staudinger–Bertozzi ligation, and copper(I)-catalyzed click reaction was used to label the three catalytic activities of the proteasome simultaneously in a single experiment. The orthogonality of the three ligation…
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Biophysical Structural Chemistry
Research within our group revolves around the atomic structures of large bio-molecules and their complexes.
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Bioactive Molecules
Bioactive Molecules is one of the four research themes of the Institute of Biology Leiden.
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Putting life into Late Neolithic houses
Investigating domestic crafts and subsistence activities through experiments and material analysis
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Discovery and characterization of new glucosylated metabolites: pathophysiological consequences
Within this thesis the central stage is taken by the discovery and investigation of transglycosylation of sterols. First, investigation focuses on the development of a method to accurately detect and quantify glucosylated metabolites in biological materials.
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Immunotherapy to limit atherosclerosis-projects
For more information regarding ongoing research projects, please contact Prof. Johan Kuiper.
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Heineken Young Scientists Award for three Leiden researchers
Three of the four Heineken Young Scientists Awards for 2022 have gone to researchers from Leiden: chronobiologist Laura Kervezee, physicist Jordi Tura i Brugués and health psychologist Liesbeth van Vliet.
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More efficient learning thanks to sleep
Young children, adolescents and students may experience learning difficulties as a result of lack of sleep. Dr Kristiaan van der Heijden investigates sleep problems and solutions for various age groups.
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