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Additive manufacturing (AM) was introduced the 1980's for rapid prototyping (RP) purposes but now AM provides complementary techniques to conventional manufacturing processes and offers advantages when components can be exacting, impossible, and too costly to be produced by conventional methods due to complex structures and geometric configurations, which require tailored designs. They are also of
Spark ablation is an established technique for generating aerosol nanoparticles. Recent demonstrations of compositional tuning of bimetallic aerosols have led to a demand for on-line stoichiometry measurements. In this work, we present a simple, non-intrusive method to determine the composition of a binary AuAg nanoparticle aerosol on-line using the optical emission from the electrical discharges.
Ten per cent of patients with colorectal cancer will develop peritoneal metastases. These metastases are known to have a lesser response to systemic chemotherapy than liver- and lung metastases. Randomized studies have shown that adding cytoreductive surgery and heated intraperitoneal chemotherapy (HIPEC) to this treatment gives a better chance of survival. Recently, a randomized study failed to s
We discuss how coherent driving of a two-level quantum system can be used to induce a complex phase on the ground state and we discuss its geometric and dynamic contributions. While the global phase of a wave function has no physical significance, the coherent dynamics in a two-level subspace provides relative phases and is an essential building block for more advanced dynamics in larger systems.
Background: Smoke-free tobacco via moist oral snuff (snus) is used daily in more than 20% of Swedish men. Negative effects of cigarette smoking on sperm parameters are well documented, unlike for snuff, despite relevance also for other smoke-free nicotine products. Objectives: We wanted to investigate whether reproductive parameters differed between users and non-users of snuff, and whether the am
Many surface science experiments within heterogeneous catalysis are now conducted in realistic conditions at higher pressures. At these pressures, localized gas conditions will form throughout the reactor. Understanding these gas conditions and their interaction with the catalyst surface at relevant time scales and with spatial resolution is important. To address this issue, we use a combination o
Active research on halide perovskites has given us a deep understanding of this family of materials and their potential for applications in advanced optoelectronic devices. One of the prominent outcomes is the use of perovskite materials for nonlinear optical applications. Two-photon absorption in perovskites, in particular their nanostructures, has been extensively studied and shows huge promise
The application of dynamic light scattering to soft matter systems has strongly profited from advanced approaches such as the so-called modulated 3D cross correlation technique (Mod3D-DLS) that suppress contributions from multiple scattering, and can therefore be used for the characterization of turbid samples. Here we now extend the possibilities of this technique to allow for depolarized light s
BACKGROUND: User involvement in research has rapidly increased and is often a precondition to obtain research funding. Benefits such as effectiveness and increased relevance of research are described in the literature, but the evidence to support this is weak. Little is known about ageing and health researchers' experiences and perspectives towards user involvement in research, and their attitudes
Background: The association of blood pressure (BP) with prostate cancer risk after accounting for asymptomatic prostate-specific antigen (PSA) testing, and with prostate cancer death, is unclear. Methods: We investigated BP, measured at a mean age of 38 years among 430,472 men from five Swedish cohorts, in association with incident prostate cancer (n = 32,720) and prostate cancer death (n = 6718).
Information about the decline rate in forced expiratory volume in 1 s (FEV1s) in older adults with COPD is scarce. A total of 4082 community-dwelling older adults from the population-based study Good Aging in Skåne were followed for 12 years and 143 participants developed COPD. The average FEV1s decline is estimated to be 66.3 mL/year, (95% CI [56.4; 76.3]) and 43.3 mL/year (1.7%/year, 95% CI [41.
Poland and polish courts have been the subject of much attention during recent years, because of alleged problems in relation to the organisation of justice in Poland. It has been claimed that new suggested legislation in Poland, and changes in the system for appointing judges, prevents courts in Poland from adjudicating justice in a fair and independent manner in accordance with the Rule of Law.
Objectives: To examine potential sex differences in longitudinal cognitive and activities of daily living (ADL) performance and life expectancy between early- and late-onset Alzheimer’s disease (AD). Methods: The Swedish Alzheimer Treatment Study is a prospective, observational, multicentre study that was used in a routine clinical setting including 1,017 patients diagnosed with mild-to-moderate A
Objective To determine if patients with systemic lupus erythematosus (SLE), a disease characterised by elevated type I interferons reminiscent of anti-viral immunity, have expression of human endogenous retrovirus K (HERV-K) proviruses capable of producing envelope (Env) protein, as well as associated autoantibodies against the Env protein. Methods ELISAs were conducted with recombinant Env protei
Objective: To characterize the trend of opioid use (number of users, dispensations and oral morphine milligram equivalents) in Catalonia (Spain). Design, setting, and participants: This population-based cohort study included all individuals aged 18 years or older, registered in the Information System for Research in Primary Care (SIDIAP), which covers >75% of the population in Catalonia, Spain, fr
It has been suggested that added sugar intake is associated with non-alcoholic fatty liver disease (NAFLD). However, previous studies only focused on sugar-sweetened beverages; the evidence for associations with total added sugars and their sources is scarce. This study aimed to examine the associations of total added sugars, their physical forms (liquid vs. solid), and food sources with risk of N
