Sökresultat

Filtyp

Din sökning på "*" gav 526768 sökträffar

Does size matter? Attendance numbers at SI-sessions and how it affects learning conditions

Supplemental Instruction (SI) is today a well-known academic support model to address retention and student performance in higher education. However, in studies reporting the effect of SI, the number of attendees at SI-sessions are seldom mentioned or reflected upon.This study investigates if there is a lower, optimal, and upper number of SI-attendees for SI-sessions with viable learning condition

Contributions to Preventive Measures in Cyber Security

Organizations and individuals maintain and use an ever increasing amount of computer systems, either deployed locally, or in the cloud.These systems often store and handle vast amounts of data, some of which is sensitive and should be kept private.Regardless of where the data is located, there is a need to prevent data from falling into the wrong hands.To this end, this dissertation presents contr

Pool Boiling on Structured Surfaces: Heat Transfer and Critical Heat Flux : Experiments and Mechanistic Modelling

In this thesis, pool boiling heat transfer was experimentally studied on structured surfaces with dielectric liquids (HFE-7200, NOVEC-649, FC-72), organic liquids (Acetone, Pentane) and deionized water.In the first step, nanoparticle coatings on copper surfaces were prepared by an electrophoretic deposition method, with Cu-Zn nanoparticles (100 nm) and Cu nanoparticles (150 nm). Two types of nanop

Understanding and improving microbial cell factories through Large Scale Data-approaches

Since the advent of high-throughput genome sequencing methods in the mid-2000s, molecular biology has rapidly transitioned towards data-intensive science. Recent technological developments have increased the accessibility of omics experiments by decreasing the cost, while the concurrent design of new algorithms have improved the computational work-flow needed to analyse the large datasets generated

Dimethylguanidino Valerate : A Lifestyle-Related Metabolite Associated With Future Coronary Artery Disease and Cardiovascular Mortality

Background Identification of lifestyle modifiable metabolic pathways related to cardiometabolic disease risk is essential for improvement of primary prevention in susceptible individuals. It was recently shown that plasma dimethylguanidino valerate (DMGV) levels are associated with incident type 2 diabetes mellitus. Our aims were to investigate whether plasma DMGV is related to risk of future coro

Intra- and Inter-Rater Agreement Describing Myometrial Lesions Using Morphologic Uterus Sonographic Assessment : A Pilot Study

OBJECTIVES: To evaluate the intra- and inter-rater agreement for myometrial lesions using Morphologic Uterus Sonographic Assessment terminology. METHODS: Thirteen raters with high (n = 6) or medium experience (n = 7) assessed 30 3-dimensional ultrasound clips with (n = 20) and without (n = 10) benign myometrial lesions. Myometrial lesions were reported as poorly or well defined and then systematic

Prevalence and characteristics of asthma-chronic obstructive pulmonary disease overlap in routine primary care practices

Rationale: Adults may exhibit characteristics of both asthma and chronic obstructive pulmonary disease (COPD), a situation recently described as asthma-COPD overlap (ACO). There is a paucity of information about ACO in primary care. Objectives: To estimate the prevalence and describe characteristics of individuals withACOin primary care practices among patients currently diagnosed with asthma, COP

Parameterization-induced uncertainties and impacts of crop management harmonization in a global gridded crop model ensemble

Global gridded crop models (GGCMs) combine agronomic or plant growth models with gridded spatial input data to estimate spatially explicit crop yields and agricultural externalities at the global scale. Differences in GGCM outputs arise from the use of different biophysical models, setups, and input data. GGCM ensembles are frequently employed to bracket uncertainties in impact studies without inv

Variation in Sedation and Neuromuscular Blockade Regimens on Outcome After Cardiac Arrest

OBJECTIVES: Sedation and neuromuscular blockade protocols in patients undergoing targeted temperature management after cardiac arrest address patient discomfort and manage shivering. These protocols vary widely between centers and may affect outcomes. DESIGN: Consecutive patients admitted to 20 centers after resuscitation from cardiac arrest were prospectively entered into the International Cardia

Design, synthesis, and structure-activity analysis of isoform-selective retinoic acid receptor β ligands

We recently discovered the isoform selective RARβ2 ligand 4′-octyl-4-biphenylcarboxylic acid (3, AC-55649). Although 3 is highly potent at RARβ2 and displays excellent selectivity, solubility issues make it unsuitable for drug development. Herein we describe the exploration of the SAR in a biphenyl and a phenylthiazole series of analogues of 3. This ultimately led to the design of 28, a novel, ora

Physiological and morphological changes during short term starvation of marine bacterial islates

Three marine bacteria were examined for physiological and morphological changes in the initial phase of starvation. It was found that the starvation process was induced in a similar way irrespective of whether the cells were suspended in nutrient and energy free artificial seawater (NSS) or NSS supplemented with nitrogen and phosphorus. An initial phase of increased activity was consistent with a

Plastics and Sustainable Investments – an information brief for investors

Plastics have become ubiquitous in modern society. It is a group of materials that is versatile and useful in many types of applications and have thus become extremely popular. Plastics are thus important for many industries and value chains as well as for everyday practices of most individuals – and should thus be also for investors and financial actors. A transition to sustainable plastics will

Educational assortative mating, gender equality, and income differentiation across Europe: A simulation study

Demographic explanations for the rise in household income inequality include increased educational assortative mating and changes in the division of paid labour within families. Building on this research, the current study focuses on the connected nature of these two inequality-producing mechanisms, while at the same time bridging the divide with the economic literature on the role of income diffe

Modelling Thermo‐Viscoplasticity of Case‐Hardening Steels Over Wide Temperature Ranges

The aim of this work is the development of a thermodynamically consistent fully coupled thermo‐viscoplastic material model for metals. The model is based on a split of the free energy into a thermo‐elastic, a thermo‐plastic and a purely thermal part and covers nonlinear cold‐work hardening and thermal softening. Nonlinear temperature dependent effects are accounted for the elastic moduli, the plas

Thermo-Viscoplasticity for Case Hardening Steels at Finite Deformations and Wide Temperature Ranges

The aim of this work is the development of a thermodynamically consistent fully coupled thermo-viscoplastic material model for metals undergoing finite deformation and large temperature changes.The deformation gradient is supposed to be decomposable into a thermal, an elastic, and a plastic part, where purely volumetric thermal expansion and isochoric plastic distortion is assumed. The model is ba