Sökresultat

Filtyp

Din sökning på "*" gav 526767 sökträffar

Rooting out the root causes of order fulfilment errors : a multiple case study

While recent technological advancements have enabled improved performance in warehouse operations, companies still struggle with eliminating errors such as incorrect/damaged items or the wrong quantity sent to customers. Such errors result in inefficient resource use, costly returns handling, and customer dissatisfaction. Despite the importance of errors, current knowledge of the underlying causes

Fabrication of x-ray gratings for interferometric imaging by conformal seedless gold electroplating

We present a method to produce small pitch gratings for X-ray interferometric imaging applications, allowing the phase sensitivity to be increased and/or the length of the laboratory setup to be minimized. The method is based on fabrication of high aspect ratio silicon microstructures using deep reactive ion etching (Bosch technique) of dense grating arrays and followed by conformal electroplating

Molecular view of ER membrane remodeling by the Sec61/TRAP translocon

Protein translocation across the endoplasmic reticulum (ER) membrane is an essential step during protein entry into the secretory pathway. The conserved Sec61 protein-conducting channel facilitates polypeptide translocation and coordinates cotranslational polypeptide-processing events. In cells, the majority of Sec61 is stably associated with a heterotetrameric membrane protein complex, the transl

Inclusive design-theory : How to take advantage of diversity in information systems design

The theme of ICIS 2013 in Milan is "Reshaping Society through Information Systems" (http://icis2013.aisnet.org/). One aspect of reshaping society that has been recently discussed in central Europe is that of social inclusion (http://ec.europa.eu/social/main.jsp?catId=750&langId=en). Yet, after decades of research and ambitious political programs, we still observe an imbalanced treatment toward

Social Media and Development: Understanding NGO practices and perceptions

The goal of this study is to identify the perspectives that development NGOs attribute to organisational social media, and furthermore elaborate on an appropriate categorisation of these perspectives for social media use by development NGOs. How social media is used in the area of development, where the use goes far beyond the private sector purpose of publicity and converting a sale, is a key iss

Sex steroid levels in corresponding cerebrospinal fluid and serum samples quantified by mass spectrometry in men

OBJECTIVE: Sex steroids exert important biological functions within the central nervous system (CNS), but the underlying mechanisms are poorly understood. The contribution of circulating sex steroids to the levels in CNS tissue and cerebrospinal fluid (CSF) has been sparsely investigated in human and with inconclusive results. This could partly be due to lack of sensitive validated assays. To addr

Gap properties of helical edge states in two-dimensional topological insulators with time-dependent magnetic impurities

The quantum mechanical equivalent of the classical Hall effect can lead to interesting results in solid state physics.A similar effect, that has received attention in recent years, occurs when large spin-orbit coupling is present in a material, the so-called quantum-spin Hall effect.In two-dimensional materials it leads to so-called helical edge states that exhibit counter-propagating electron sta

Have climate policies accelerated energy transitions? Historical evolution of electricity mix in the G7 and the EU compared to net-zero targets

Climate policies are often assumed to have significant impacts on the nature and speed of energy transitions. To investigate this hypothesis, we develop an approach to categorise, trace, and compare energy transitions across countries and time periods. We apply this approach to analyse electricity transitions in the G7 and the EU between 1960 and 2022, specifically examining whether and how climat

Within Judaism? : Interpretive Trajectories in Judaism, Christianity, and Islam from the First to the Twenty-First Century

This book charts the shifting boundaries of Judaism from antiquity to the modern period in order to bring clarity to what scholars mean when they claim that ancient texts or groups are “within Judaism,” as well as exploring how rabbinic Jews, Christians, and Muslims have negotiated and renegotiated what Judaism is and is not in order to form their own identities. Belief in Jesus as the Messiah was

An inclusive and participatory approach to counter-radicalization? : Examining the role of Muslim associations in the Swedish policy process

Policies on preventing radicalization and recruitment to violent Islamist organizations have been widely criticized for reinforcing negative stereotypes of Muslims as a group. Sweden has stood out by international comparison by announcing an approach built on inclusion and participation, especially with regard to Muslim civil society. But what does it mean to make a policy process inclusive and pa

Path Planning Using Wasserstein Distributionally Robust Deep Q-learning

We investigate the problem of risk averse robot path planning using the deep reinforcement learning and distributionally robust optimization perspectives. Our problem formulation involves modelling the robot as a stochastic linear dynamical system, assuming that a collection of process noise samples is available. We cast the risk averse motion planning problem as a Markov decision process and prop

Classifying Google reCAPTCHA v2 - A study using transfer learning models and evaluating their robustness against adversarial perturbations

This thesis seeks to examine the suitability and robustness of transfer learning models in creating an efficient reCAPTCHA v2 classifier, and further evaluates their performance against various adversarial attacks. Three models - DenseNet201, EfficientNetV2, and InceptionV3 - were trained and assessed, highlighting the applicability of transfer learning techniques in the classification of reCAPTCH

Gravitational echoes of lepton number symmetry breaking with light and ultralight Majorons

We formulate a version of the low-scale Majoron model equipped with an inverse seesaw mechanism featuring lepton-number preserving dimension-6 operators in the scalar potential. Contrary to its dimension-4 counterpart, we find that the model can simultaneously provide light and ultralight Majorons, neutrino masses and their mixing, while featuring strong first-order cosmological phase transitions

Going beyond archetypes: a story about inspiration, limits, and communication

Archetypes, as universal patterns or prototypes, are deeply ingrained in the collective consciousness and shape our expectations about the appearance, function, and meaning of objects. However, as products and their contexts change, it becomes necessary to find ways to break away from existing archetypal images. This thesis explores the development of archetypes, the boundaries of object categori