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Edge diffraction call be a major source of high radar visibility for integrated array antennas. In this paper, it is shown that tapered resistive sheets at the edges of the array can be used to transform the scattering properties of the antenna to that of a metallic plate and hence reduce the radar cross section. Numerical examples of kill array of self-complementary patches and a, bandpass freque
BACKGROUND: Monitoring levels and trends in premature mortality is crucial to understanding how societies can address prominent sources of early death. The Global Burden of Disease 2016 Study (GBD 2016) provides a comprehensive assessment of cause-specific mortality for 264 causes in 195 locations from 1980 to 2016. This assessment includes evaluation of the expected epidemiological transition wit
We studied the occurrence of arteriovenous (A-V) shunting in three experimental rat models, namely in rejecting allograft kidney, in uni- or bilateral ureteral obstruction, and in haemorrhagic hypotension. Isografted or sham-operated rats served as controls. Radiolabelled microspheres were injected into the renal artery and the increase in the amount of radioactivity in the lungs was considered to
A major challenge in neuroscience is to resolve the connection between gene functionality, neuronal circuits, and behavior. Most, if not all, neuronal circuits of the adult brain contain a glutamatergic component, the nature of which has been difficult to assess because of the vast cellular abundance of glutamate. In this study, we wanted to determine the role of a restricted subpopulation of glut
Multiple mechanisms contribute to tissue demise and functional recovery after stroke. We studied the involvement of macrophage migration inhibitory factor (MIF) in cell death and development of neurologic deficits after experimental stroke. Macrophage migration inhibitory factor is upregulated in the brain after cerebral ischemia, and disruption of the Mif gene in mice leads to a smaller infarct v
Regional cerebral blood flow was measured by the 133-xenon inhalation method during resting in 38 healthy men and 38 healthy women matched pairwise for age in the range 18-72 years. The results showed 11% higher global flow level in the women in all ages. A similar and significant regression of flow by age was seen for both sexes. The regional flow distribution also showed some sex-related differe
Background Breast cancer is the most frequently diagnosed cancer in women. Survival is generally considered favourable, yet some patients remain at risk of early death. We aimed to assess whether comprehensive whole-genome sequencing (WGS) linked to mortality data could add prognostic value to existing clinical measures and identify patients who might respond to targeted therapeutics. Methods In t
One of the most cited studies within the field of binary choice models is that of Klein and Spady (1993), in which the authors propose a semiparametric estimator for use when the distribution of the error term is unknown. However, although theoretically appealing, the estimator has been found to be difficult to implement, and therefore not very attractive from an applied point of view. The current
Objective: The aim of this study was to analyze the impact of reproductive factors on breast cancer risk among Swedish women by using nationwide population registers. Methods: A cohort including all Swedish women born between 1920 and 1959 was followed up to 1997 by record linkage to different population-based registers. More than 4 million children were linked to the women in the cohort and 60,32
UNLABELLED: Persistent CB1 cannabinoid receptor activity limits neurotransmitter release at various synapses throughout the brain. However, it is not fully understood how constitutively active CB1 receptors, tonic endocannabinoid signaling, and its regulation by multiple serine hydrolases contribute to the synapse-specific calibration of neurotransmitter release probability. To address this questi
A complex of chagasin, a protein inhibitor from Trypanosoma cruzi, and papain, a classic family C1 cysteine protease, has been crystallized. Kinetic studies revealed that inactivation of papain by chagasin is very fast (k(on) = 1.5 x 10(6) m(-1).s(-1)), and results in the formation of a very tight, reversible complex (K-i = 36 pm), with similar or better rate and equilibrium constants than those f
We show that it is possible to understand and interpret the complex and rich C-H stretch region in the vibrational spectrum of ethoxy adsorbed on W(110) in terms of fundamental C-H stretch modes in Fermi resonance with C-H deformation overtones and combinations. The mode assignment is based on calculated C-13 isotopic shifts for an ethoxy-Cu-5 cluster. The coupling constants have been derived from
In this paper, we propose a method for the estimation of the fundamental frequency of a periodic waveform based on the shift-invariance property of the sinusoidal signal model known from ESPRIT. An advantage of the proposed method is that the model order and the fundamental frequency can be found jointly and that the method does not depend on the density of the observation noise but rather on it b
Popular science summary: The Battle Against Cancer Daily, people are diagnosed with cancer, a disease that brings suffering and despair. I'm sure you have heard about chemotherapy and radiation as a way of trying to treat cancer, but it is equally important to find an effective method to quickly and reliably detect a tumor at an early stage, before it is too late. In my master's thesis,
Popular summary Guld är en ädelmetall som är mycket älskad av människan och har varit eftertraktad under århundraden. Guld har används som betalningsmedel, som värdebeständig tillgång och som smycken. Men guld har även andra egenskaper som kan vara till stor nytta för människan. En av egenskaperna undersöktes i det här projektet. Guld kan nämligen kopplas till en molekyl och på så sätt få egenskapGold is a transition metal that can be use as catalyst in a various reactions, when coordinated to ligands. In this study two dinuclear gold(I) complexes bearing chiral ligands have been synthesized and tested as catalyst for asymmetric hydrogenation of α,β-unsaturated carboxylic acids. Asymmetric synthesis is also known as enantioselective synthesis and is a very important synthesis method in dru
Sweden has set a climate goal that emissions generated by businesses within Sweden by 2045 should be at least 85% lower than emissions in 1990. In 2017, the construction and real estate sector accounted for 19 % of Sweden's total greenhouse gas emissions. A large part of a building's climate impact occurs during the product phase. The foundation is part of a building’s design which signifi
Cementstabiliserad asfalt (CSA) är ett kompositslitlager bestående av en asfaltbeläggning med högt hålrum som är fyllt med en cementbaserad slamma. Produkten kan därför kallas för ett semiflexibelt slitlager på grund av att egenskaper från både asfalt och betong kombineras. Egenskaperna som kännetecknar CSA är asfaltens elasticitet samt cementens bärighet och beständighet, hög motståndskraft mot kCement stabilized asphalt (CSA) is a composite layer consisting of an asphalt with high cavity which is filled with a cement-based slurry. The product can therefore be called a semiflexible wearing course because of its combined characteristics from both asphalt and concrete. The characteristic features of CSA are the asphalts elasticity and the cements buoyancy and resistance, high resistance aga
