This multidisciplinary minor provides students with knowledge on how and why humans became the way they are. The minor focuses on the evolution of the species Homo sapiens from other hominin lineages and animal ancestors, and on the various factors shaping this process. Not only is human evolution of…

In this course, you will develop an understanding of evolutionary processes and their formative power. You will see how evolution has shaped biodiversity, and continuously influences our daily life.

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)

Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans

Sustainable energy from wind and solar is most readily available near the sea.

Electrocatalysis allows for storing electricity or converting it into chemical bonds, producing chemical building blocks and fuels using renewable resources.

Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)

The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.

Promotor: Prof.dr. H.J.A. Rottgering

Promotor: Prof.dr. M. Schilthuizen

We have examined sequences from the ligand-binding domain of the nicotinic acetyl choline receptor (nAChR) in 148 vertebrate species. We are in interested in this receptor because the α-neurotoxins of many venomous snakes binds to this receptor in its location at the neuromuscular junction in all ve…

One of the most important puzzles in modern astrophysics is the nature of dark matter.

Bicarbonate buffer is largely found in nature due to its ability to regulate pH variations around neutral values. As the pH changes, so does the speciation of the buffer.

The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.

Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans

To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.

Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren

This thesis has shed light on some of the ways in which the local electrolyte composition can differ from the bulk and how these changes in the local reaction environment can determine the activity and/or selectivity of two important electrocatalytic reactions, namely, electrochemical CO2 reduction…

Planets are formed in disks of gas and dust around young stars.

The study of orchid flowers, fruits, and inflorescences is crucial due to the remarkable diversity of orchid species and their unique adaptations to pollinators and seed dispersers. However, our understanding of the evolution and development of these organs within the orchid family remains limited.

This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Promotie

The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system. Morphological changes included the partitioning of the mixed ancestral glands into two discrete glands devoted for production of venom ormucous…

Promotor: Prof.dr. E.F. Smets

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling

The logic seems inescapable indeed. The bigger the population, the higher the probability it contains an Einstein. Hence, bigger populations are more likely to develop complex culture.

Evolution acts via mutations in amino acid sequences. Substitution of essential amino acids leads to a nonfunctional protein. l.

A neurobiological perspective on individual differences in social competence

Promotor: E. Gittenberger, Co-promotores: L.P. van Ofwegen; B.W. Hoeksema

Sociale Zaken is een online variant van de Londense Speakers' corner. Hierin reageren de wetenschappers van onze verschillende disciplines binnen de Faculteit der Sociale Wetenschappen op het nieuws. Via deze digitale zeepkist geven de sociale wetenschappers van de Universiteit Leiden zo elk hun visie…

Moet je alles kunnen zeggen op Twitter en Facebook? Is Instagram moreel verplicht foto’s te verwijderen van aanslagen? Moeten we toestaan dat terroristische groepering nieuwe leden werven op het internet?

Sociale veiligheid heeft alles te maken met een ondersteunende gemeenschap creëren

Binnen de Faculteit der Sociale Wetenschappen zijn vijf instituten gevestigd:

De Faculteit der Sociale Wetenschappen combineert hooggekwalificeerd onderzoek en uitstekend onderwijs in de disciplines culturele antropologie, pedagogische wetenschappen, politieke wetenschap, psychologie, wetenschaps- en techniekstudies, evenals in multidisciplinaire benaderingen.

Onze universitaire gemeenschap vormt het hart van onze academie. Het is voor de universiteit Leiden van groot belang dat haar medewerkers met plezier naar hun werk gaan en zonder belemmeringen hun werkzaamheden kunnen uitvoeren.

De Faculteit der Sociale Wetenschappen van de Universiteit Leiden onderhoudt op verschillende manieren contact met alumni van haar faculteit.

Bij FGGA willen we dat onze medewerkers zich in alle opzichten veilig voelen. We streven daarom naar een werkomgeving waar we elkaar met respect behandelen, waar we inclusie bevorderen en waar we ons uitspreken als we onveiligheid ervaren of er getuige van zijn.

The origin and evolution of galaxies are closely linked to many different physical phenomena.

Social Citizenship & Migration (SCM) is een van de negen interdisciplinaire stimuleringsgebied programma's die de Universiteit Leiden in 2020 heeft gelanceerd. Het wordt geleid door de faculteiten Governance and Global Affairs, Rechtsgeleerdheid, Geesteswetenschappen en Sociale Wetenschappen.

YAL werkt samen met Human Resources (HR) aan de lancering van de Open Dialoogsessies Sociale Veiligheid. We willen bestaande beleidsmaatregelen op het gebied van sociale veiligheid en hun toepassingen samenbrengen met de ervaringen en verwachtingen van onze gemeenschap.

De sociale angststoornis is één van de meest voorkomende stoornissen bij kinderen en jongeren. Sociale angst wordt gekenmerkt door overmatige angst en vermijding van sociale situaties, waarbij kinderen voornamelijk bang zijn om negatief beoordeeld te worden door anderen. Cognitieve gedragstherapie,…

Ernstige vormen van angst voor de mening van anderen, kunnen tieners op school belemmeren tijdens sociale interacties of het uitvoeren van taken. Psycholoog Anne Miers zoekt naar manieren om deze zogenoemde ‘sociale angst’ te verminderen.

This dissertation takes an important step in understanding the phenomenon of non-take-up of social support and what it means for contemporary social policies.