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Gradient-echo pulse sequences with velocity-encoding gradients of 22.5-25 mT/m, were used for brain-motion and CSF-flow studies. To reduce motion artifacts, a phase-correction technique based on navigator echoes was evaluated. Three patients with right-sided parietal tumours were investigated; one astrocytoma grade III-IV, one astrocytoma grade I-II and one benign meningioma. In healthy volunteers
Mild diseases and moderate stressors are seemingly harmless and are therefore often assumed to have negligible impact on Darwinian fitness. Here we argue that the effects of “benign” parasites and other moderate stressors may have a greater impact on lifespan and other fitness traits than generally thought. We outline the “accumulating costs” hypothesis which proposes that moderate strains on the
Research on the effects of climate change in the marine environment continues to accelerate, yet we know little about the effects of multiple climate drivers in more complex, ecologically relevant settings - especially in sub-tropical and tropical systems. In marine ecosystems, climate change (warming and freshening from land run-off) will increase water column stratification which is favorable fo
The murine embryonal stem (ES) cell virus (MESV) can express transgenes from the long terminal repeat (LTR) promoter/enhancer in undifferentiated ES cells, but expression is turned off upon differentiation to embryoid bodies (EBs) and hematopoietic cells in vitro. We examined whether a human immunodeficiency virus type 1-based lentivirus vector pseudotyped with the vesicular stomatitis virus G pro
AIM: To prospectively validate two mathematical models for calculating the likelihood of endometrial malignancy in patients with postmenopausal bleeding (PMPB), sonographic endometrial thickness (ET) ≥4.5 mm and no fluid in the uterine cavity.METHODS: This is a prospective observational diagnostic validation study performed in a PMPB clinic in a university hospital. Of 860 consecutive patients, 35
Background: Levodopa–carbidopa intestinal gel (LCIG) is available in several countries for the treatment of advanced levodopa-responsive Parkinson’s disease (PD) with severe motor fluctuations and dyskinesia when other treatments have not given satisfactory results. Objective: Our objective was to summarize the present evidence base for LCIG therapy through a systematic review of the literature. M
The most complete and realistic physiological data are derived from direct measurements during human experiments; however, they present some limitations such as ethical concerns, time and cost burden. Thermophysiological models are able to predict human thermal response in a wide range of environmental conditions, but their use is limited due to lack of validation. The aim of this work was to vali
We investigate antenna correlation of an M-antenna massive multiple-input multiple-output (MIMO) setup with the purpose of obtaining a low-rank representation of the instantaneous massive MIMO channel. Low-rank representation bases using short-term and long-term antenna correlation statistics are defined, and their performance is evaluated with data sets obtained from channel measurements in both
Alpha(1)-microglobulin is a 26 kDa plasma and tissue glycoprotein that belongs to the lipocalin protein superfamily. Recent reports show that it is a reductase and radical scavenger and that it binds heme and has heme-degrading properties. This study has investigated the protective effects of alpha(1)-microglobulin against oxidation by heme and reactive oxygen species in the human erythroid cell l
Objective: The course and the long-term outcome of 'refractory' secretory otitis media (SOM), defined as continuous SOM for more than 6 years, were studied in 52 young patients. They had during childhood been treated for bilateral SOM on average for 12 years (range 6 to 26 years). The mean interval between resolution of SOM and examination was 7 years. Methods: At follow up the patients' medical r
Partially premixed combustion using gasoline-like fuels on compression ignition engines shows great potentials to break the soot-nitrogen oxides trade off and reduce both emissions simultaneously. By simply adjusting the dilution strategies and injection events, the control of partially premixed combustion is relatively easier compared to other low-temperature combustion concepts. However despite
Objective: To investigate if muscle strength and muscle activation patterns are associated with increased knee abduction during two functional tasks, commonly used in rehabilitation for individuals with anterior cruciate ligament reconstruction (ACLR). Design: Cross-sectional study. Setting: Laboratory. Participants: 24 women and 29 men approximately 7 months after ACLR. Main outcome measures: Iso
Popular Abstract in Swedish Avhandlingen består av fyra kapitel. Efter det inledande kapitlet används i kapitel två och tre ekonomiska experiment för att undersöka hur deltagare fördelar ett överskott mellan sig då det finns två fokalpunkter. Kapitel fyra undersöker huruvida en penningpolitisk störning har asymmetriska effekter på de svenska länens sysselsättning. I kapitel två, samförfattat med This thesis consists of two parts. The first part uses economic experiments to investigate how participants choose to divide a surplus in the presence of competing focal points. The second part examines whether a monetary policy shock has asymmetric regional effects. Chapter 2 suggests a simple separation mechanism based on heterogeneity among subjects to understand how they choose equilibrium wh
Kriser är allmänna och problematiska inslag i samtida politik. Förstådd som en punkt i tiden då ordningen är underminerad av oordning och förändring medför krisen en normativ förskjutning som möjliggör extraordinära åtgärder och att krisen avgränsas från det normala, att det oförutsägbara kan avgränsas till krisen och det som görs i kriser kan anses sakna konsekvenser för normaliteten. Avhandlinge
Purpose This study explored the role of several psychological factors in professional quality of life in nurses. Specifically, we tried to clarify the relationships between several dimensions of empathy, self-compassion, and psychological inflexibility, and positive (compassion satisfaction) and negative (burnout and compassion fatigue) domains of professional quality of life. Methods Using a cros
27-hydroxycholesterol (27HC), synthesized from cholesterol by the enzyme CYP27A1, differentially impacts estrogen receptor positive (ER+) breast cancer (BC) cell growth depending on estrogen levels. This study examined the association between CYP27A1 expression and prognosis in a cohort of 193 premenopausal patients with lymph node-negative primary BC with limited exposure to adjuvant systemic can
The diversity of bacteriophages is likely unparalleled in the biome due to the immense variety of hosts and the multitude of viruses that infect them. Recent efforts have led to description at the genomic level of numerous bacteriophages that infect the Actinobacteria, but relatively little is known about those infecting other prokaryotic phyla, such as the purple non-sulfur photosynthetic α-prote
Extending beyond previous research biases towards large cities or analyses based largely on one type of urban agriculture (UA) (such as market gardening, or home gardening), this research aimed to investigate all forms of UA within two intermediate-sized Ghanaian cities (Techiman and Tamale). Where was being farmed? For whom, and why? The paper considers how findings compare to Ghana's larger citi
Floral scent is an important mediator of plant–pollinator interactions. Multiple recent studies report ample intraspecific scent variation among populations and individuals. Yet, few studies have eastimated effects of phenotypic plasticity on floral scent in response to differing environmental factors. In this study, we investigated the effects of nutrient and water availability on floral scent in
Denna studie undersöker utrymning genom inåtgående dörrar, något som bör undvikas enligt svenska byggregler när antalet personer i en lokal överstiger 30. Trots detta är de specifika utmaningarna och påverkande faktorerna, särskilt vad gäller personer med nedsatt rörelseförmåga, till stor del outforskade. För att belysa detta genomfördes en litteraturstudie samt utrymningsförsök med 36 deltagare (
