Search

Populationsdynamik är en av de fundamentala pelarna inom ekologi, där en viktig byggsten är interaktioner mellan predator och bytesdjur. Denna interaktion är särskilt viktig att studera för hotade arter, såsom den europeiska ålen, Anguilla anguilla, och dess predator storskarv, Phalacrocorax carbo. Den europeiska ålen har minskat kraftigt sedan mitten av 1900-talet medan skarven kraftigt har ökat i antal sedan 1975. De studier som gjorts gällande skarvens predation på ål visar dock olika resultat. Denna studies syfte är att genom kartläggning av tidigare forskning skapa en större uppfattning av och förståelse för skarvens predation på ål och varför resultaten varierar mellan studier. Genom en utarbetad söksträng och tidigare sammanställda studier inkluderades 27 studier fördelade på 95 dataset. Ål förekom i skarvens diet i 52 av dessa dataset. Fyra olika observationsmetoder för att analysera skarvens föda hittades. Resultaten visar på stor variation i skarvens predation på ål beroende på tidsperiod, med högst predation på 1970-talet som sedan minskat över åren. Variationen i hur studierna presenterar sina resultat var stor. Detta antyder att flera variabler kan förklara skillnaderna i resultat och att komplexiteten i att jämföra studier är hög. Sammantaget föreslås en standardisering av analysmetoder samt en tydligare och mer transparant redovisning av resultat. Detta skulle ge en bättre förståelse gällande båda arterna ål och skarv och deras predator- och bytesinteraktioner i akvatiska ekosystem.

As the energy consumption is constantly increasing, the demand of renewable energy is increasing too. Thirtythree percent of the renewable energy production in Europe constitutes of hydropower. Hydropower is animportant energy source as it has stabilizing and storing functions, but it heavily affects biodiversity. This is mainlyby the dam constructions creating migration barriers for migrating species. This has severe impacts on the wholepopulations of fish, which are decreasing in number of individuals as the reproduction and growth is affected. Onesolution to enable downstream migration is fish friendly turbines. To assess the fish friendliness of these turbines,mathematical models can be used. They estimate the mortality of a fish during turbine passage, by calculating theprobability of a fish getting struck by a runner blade. The aim of this study is to investigate if passage through fishfriendly turbines could be an alternative for downstream migration of fish in hydropower plants, and examine theapplicability, especially for small-scale hydropower. To fulfill the aim, a literature review of fish friendly turbinesand two case studies were conducted. The fish friendly turbines included in the literature review were the MinimumGap Runner, Alden Turbine, Restoration Hydro Turbine (RHT), Archimedes’ Screw, Low Pressure Turbine andVery-low Head Turbine. The case studies were conducted on two small-scale hydropower plants owned byVattenfall Hydropower in the river Upperudsälven in the southwest of Sweden, using a turbine mortality modelmade by Johanna Stålered. The fish friendly turbines that were modeled in the case studies was the Alden Turbineand the RHT. After modeling and analyzing the results, conclusions regarding the applicability for the two powerplants and small-scale hydropower could be drawn. Modeling showed that for both Taxviken and Källsviken theAlden turbine gave the lowest mortality rate. However, the mortality of the Alden turbine was significantly, Med en ständigt ökande energiförbrukning ökar även efterfrågan på förnyelsebar energi. I Europa utgörs trettiotreprocent av den förnyelsebara energiproduktionen av vattenkraft. Vattenkraften är även en viktig energikälla avanledningen att den är stabiliserande och att det är möjligt att planera produktionen, men den har också storpåverkan på den biologiska mångfalden. Detta är främst genom att dammkonstruktionerna skaparmigrationsbarriärer för migrerande arter. Detta har allvarliga konsekvenser för fiskpopulationer, som minskar iantal individer. En lösning för att möjliggöra nedströms migration är fiskvänliga turbiner. För att bedöma hurfiskvänliga dessa turbiner är kan matematiska modeller användas. Dessa uppskattar dödligheten för en fisk underturbinpassage, genom att beräkna sannolikheten för att en fisk ska träffas av en löpskovel. Syftet med denna studieär att undersöka om passage genom fiskvänliga turbiner skulle kunna vara ett alternativ för nedströms vandring avfisk i vattenkraftverk, och undersöka tillämpbarheten, särskilt för småskalig vattenkraft. För att uppfylla syftetgenomfördes en litteraturgenomgång av fiskvänliga turbiner samt två fallstudier. De fiskvänliga turbinerna sominkluderades i litteraturgenomgången var Minimum Gap Runner, Alden Turbine, Restoration Hydro Turbine(RHT), Archimedes’ Screw, Low Pressure Turbine och Very-low Head Turbine. Fallstudierna genomfördes på tvåsmåskaliga vattenkraftverk ägda av Vattenfall Vattenkraft i Upperudsälven i sydvästra Sverige, med hjälp av enturbinmortalitetsmodell gjord av Johanna Stålered. De fiskvänliga turbinerna som modellerades i fallstudierna varAlden-turbinen och RHT. Efter modellering och analys av resultaten kunde slutsatser angående tillämpbarhetenför de två kraftverken och småskalig vattenkraft dras. Modellering visade att för både Taxviken och Källsvikengav Alden-turbinen den lägsta dödligheten. Dödligheten i Aldenturbinen var dock betydligt lägre i Källsviken äni Taxviken, då den nådde 58 % för

Metal/composite hybrid tubes are potential candidates for crashworthy products having less weight and low cost compared to conventional crash boxes. The crashworthiness of Al/GFRP tubes created by wrapping an aluminum 6082 tube in glass fiber-reinforced plastic is the subject of this investigation. To compare the crush behavior of the empty GFRP/hybrid and honeycomb-filled hybrid circular tubes, quasi-static tests were conducted. Bundles and cracks were observed during the tests of composite and hybrid tubes. Energy absorption parameters of the numerical model were compared with the results of experiments. The crushing behavior of the GFRP and hybrid specimens was simulated using a numerical approach based on the Chang-Chang damage criteria. It is found that trigger mechanisms performed in the FE analysis can effectively model the crashing behavior of GFRP/hybrid specimens. The CFE and SEA of the empty composite tube are 95% and 29% greater than the empty hybrid tube, respectively. The effect of honeycomb filling on the energy absorption capabilities of hybrid tubes is investigated. The CFE of the honeycomb-filled hybrid tube is found to be 4.5% greater than the CFE of the empty hybrid tube., Ankara Yildirim Beyazit University, Department of Scientific Research Projects [5582], The authors acknowledge the financial support provided by Ankara Yildirim Beyazit University, Department of Scientific Research Projects under Project No: 5582. The authors would like to express their gratitude to Hexagon Space Aviation Trade Ltd. for providing honeycomb aluminum fillers and Prof. Dr. Metin Tanoglu and Murat Aydin for their contribution to characterization tests. Also, we would like to express our gratitude to Ameen Topa for his valuable, constructive criticisms during the modeling.

Structured Product Labels (SPLs), the package inserts that accompany drugs governed by the Food and Drugs Administration (FDA), hold information about Adverse Drug Reactions (ADRs) that exists associated with drugs post-market. This information is valuable for actors working in the field of pharmacovigilance aiming to improve the safety of drugs. One such actor is Uppsala Monitoring Centre (UMC), a non-profit conducting pharmacovigilance research. In order to access the valuable information of the package inserts, UMC have constructed an SPL mining pipeline in order to mine SPLs for ADRs. This project aims to investigate new approaches to the solution to the Scan problem, the part of the pipeline responsible for extracting mentions of ADRs. The Scan problem is solved by approaching the problem as a Named Entity Recognition task, a subtask of Natural Language Processing. By using the transformer-based deep learning model BERT, with domain-specific pre-training, an F1-score of 0.8220 was achieved. Furthermore, the chosen model was used in an iteration of Active Learning in order to efficiently extend the available data pool with the most informative examples. Active Learning improved the F1-score to 0.8337. However, the Active Learning was benchmarked against a data set extended with random examples, showing similar improved scores, therefore this application of Active Learning could not be determined to be effective in this project.

As the EU water directive starts to be implemented in Swedish law a new national plan of negotiating new environmental permits for every hydropower plant. This process will most likely result in the building of many new fish passages and ladders around the dams to allow fish and other aquatic life to pass them. Those new passages will have to be evaluated to ensure high effectiveness. To accomplish all those studies a new methodology to census fish in a cost-effective and non-labour-intensive way. This project aims to develop and test a new model which can predict if a specific salmon or trout is male or female. Further on to compare the new model with already existing census methods used to study migrating species of fish. To collect the data needed for this study a camera unit developed by the company TIVA AB to count fish was placed in a salmon trap in the mouth of Umeälven near Obbola, Västerbottens län. The pictures displaying salmon and trout from the camera were then annotated in Labelstudio to have a dataset to train the model with. To build the model a pre-built algorithm called Yolov5 was used as a base. This algorithm is an improvement to previous AI-learning algorithms as it only looks at the pictures once which increases working speed in comparison to previous models which looked at every picture multiple times. The results from the two tests conducted show an accurate model when tested on data from the same camera station where light conditions and other parameters match the training data. When tested on data from another site in Stornorrfors with a different camera setup the results are not as accurate. Unfortunately, the project suffered from big data losses which made the dataset too small to build a very precise model. However, the results show that it is possible to build a model that can predict the sex of a salmon or trout. This is a step towards identifying unique individuals with the help of AI. When more extensively developed, this method wil

[ES] Este proyecto tiene como objetivo desarrollar una extensión para Business Central, que permitirá registrar una certificación que asegure que los proveedores, con los que se realizan operaciones, están correctamente registrados para operar comercialmente. Mediante el registro de este certificado en el sistema, se posee un control del régimen fiscal con el que operan los proveedores y un conocimiento de si están al día de sus obligaciones impositivas. Esta extensión será desarrollada para las últimas versiones de Microsoft Dynamics 365 Business Central. La extensión, denominada Certificado de Proveedores, facilita el establecimiento de relaciones comerciales saludables con proveedores certificados. De esta manera, el cliente se asegura de estar operando con proveedores con una conducta empresarial transparente y garantiza así el cuidado de su marca al validar que la gestión impositiva de su proveedor está al día y se certifica en que régimen fiscal opera. Además, se comprueba que los proveedores están registrados para operar comercialmente, que es la tarea más importante a la hora de trabajar con estos. Para el desarrollo de esta extensión se hará uso del editor de código fuente Visual Studio Code, la herramienta AL Language, la aplicación para crear contenedores Docker Desktop, el servicio en la nube Azure DevOps y el propio Business Central., [EN] The objective of this project is to develop an extension for Business Central, which will allow registering a certification that ensures that the suppliers, with whom operations are carried out, are correctly registered to operate commercially. By registering this certificate in the system, there is a control of the tax regime with which the suppliers operate and a knowledge of whether they are up to date with their tax obligations. This extension will be developed for the latest versions of Microsoft Dynamics 365 Business Central. The extension, called Vendor Certificate, facilitates the establishment of healthy business relationships with certified suppliers. In this way, the client ensures that they are operating with suppliers with a transparent business conduct and thus guarantees the care of their brand by validating that the tax management of their supplier is up to date, and it is certified in which tax regime it operates. In addition, it is verified that the suppliers are registered to operate commercially, which is the most important task when working with them. For the development of this extension, use will be made of the Visual Studio Code source code editor, the AL Language tool, the application to create Docker Desktop containers, the Azure DevOps cloud service and Business Central itself.

The report summarises the monitoring activities within the National Swedish Contaminant Programme for freshwater biota. Each monitored contaminant has been examined in pike, perch or Arctic char from 32 lakes from the north to the south in Sweden.Mercury concentrations in perch show no spatial pattern across Sweden and there are no consistent time trends for all lakes. Significantly decreasing concentrations in perch are seen in 25 % of the lakes. The mercury concentrations are above the EU threshold for all sampled fish throughout Sweden.Aluminium, arsenic, nickel, and lead generally show decreasing concentrations during the last ten years.Lead shows concentrations below the threshold for all the perch lakes and for cadmium concentrations are below the threshold for all except one perch lake. For the longest time trends in pike, Arctic char and perch (starting in 1970s or 80s) downward temporal trends are observed for the chlorinated compounds, e.g. polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT), dichlorodiphenyldichloroethylene (DDE) polychlorinated dibenzo-p-dioxins and -furans (PCDD/Fs). Concentrations of hexachlorobenzene (HCB) and HCHs are below LOQ during the last 15 years. Most chlorinated compounds were below the suggested target levels. There is no general spatial pattern for the polybrominated diphenyl ethers (PBDEs) in perch. Concentrations of PBDEs are generally, in all three species, going down during the last ten years.The concentration of HBCDD was under LOQ in a majority of the samples. Concentrations of PFOS are somewhat similar among perch lakes but with more lakes in the northern part of Sweden having lower concentrations. There is no spatial pattern for the perfluoroalkyl carboxylic acids (PFCAs). For PFOS no clear trends are seen during the last ten years but many lakes show decreasing trends from 2006/2007 until 2020. Significantly decreasing trends are seen for ~30 % of the long-chained PFCAs (PFUnDA, PFDoDA, PFTrDA)

We study the family of functions that are represented by a linear convolutional network (LCN). These functions form a semi-algebraic subset of the set of linear maps from input space to output space. In contrast, the families of functions represented by fully connected linear networks form algebraic sets. We observe that the functions represented by LCNs can be identified with polynomials that admit certain factorizations, and we use this perspective to describe the impact of the network's architecture on the geometry of the resulting function space. We further study the optimization of an objective function over an LCN, analyzing critical points in function space and in parameter space and describing dynamical invariants for gradient descent. Overall, our theory predicts that the optimized parameters of an LCN will often correspond to repeated filters across layers, or filters that can be decomposed as repeated filters. We also conduct numerical and symbolic experiments that illustrate our results and present an in-depth analysis of the landscape for small architectures., QC 20220906

Mixed Al, Fe pillared clay (AlFePILC) was synthesized from Na-exchanged Wyoming clay (Na-Wy) rich in montmorillonite. In the pillaring process Na-Wy was modified with a mixed intercalating (Al, Fe) solution with molar ratio of Fe3+/(Al3++Fe3+) = 10%. The obtained AlFePILC was impregnated with cobalt using the incipient wetness impregnation method, dried at 110 ºC and calcined at 450 ºC (Co-AlFePILC). Co-AlFePILC was tested as a catalyst in catalytic oxidation of tartrazine in the presence of Oxone®. Decolorization was monitored at wavelength =426 nm, while degradation of aryl groups was followed at =257 nm using UV-Vis spectroscopy. The influence of the mass of the catalyst on degradation process was followed in the mass range from 10 mg to 50 mg at 30 °C. It was found that mass increase was beneficial for the decolorization rate. The effect of temperature was investigated from 30 ºC to 60 ºC. The decolorization was over 90% after only 10 minutes for the temperature of 60 ºC, while with the temperature decrease, the decolorization rate decreased. Co-AlFePILC was found to be an efficient catalyst in degradation of tartrazine in the presence of Oxone®.

Electrodeposition of metals in templates of nano-porous anodic aluminum oxide (NP-AAO) is a versatile way of fabricating ordered arrays of metal nanowires. Thanks to the self-arranged long-range hexagonal order of the pores, electrodeposition in NP-AAO is an easily scalable bottom-up synthesis route and an attractive alternative to traditional top-down fabrication methods such as electron beam lithography.Since NP-AAO is a non-conductive medium and since it is potentially soluble in non-neutral pH solutions, the electrodeposition of metals in NP-AAO represents a challenge. These aspects are discussed in this thesis, aiming to establish a reproducible and reliable protocol for the electrodeposition of Au and Pd.By using ex situ x-ray diffraction, it has been found that the growth of Au and Pd in the confined environment of nano-pores leads (i) to a deformation of the crystalline structure, as the lattice constant is smaller along the nanowire radius and larger along the nanowire axis, compared to the bulk lattice constant, and (ii) to a crystallite size anisotropy: it is limited by the pore radius in the horizontal direction and it is larger in the direction of growth.The electrochemical growth of Au and Pd nanowires was followed in situ by x-ray scattering methods. In the case of Au nanowires, the time-resolved measurements revealed that the anisotropy of the lattice parameter progresses as a function of time, which suggests that the strain state of the nanomaterials can be artificially selected. This findings might be beneficial in the strain-engineering of Au nanoelectrode arrays for electrocatalysis. In the case of Pd nanowires, the measurements revealed strain variations, as well as phase transitions attributed to the existence of alpha- and beta-phase Pd hydride in the NP-AAO template, due to the exposure of Pd to hydrogen evolved at the working electrode. These findings suggest that Pd in NP-AAO has potential applications in the design of hydrogen storage devi

Cilj ovog rada jeste razmatranje smetnji koje se javljaju kao posledica snimanja uzoraka ljuski kokošjih jaja i zemljišta na kome su se nalazila kokošja jaja, usled određivanja koncentracije metala Al, Ba i Sr pomoću instrumentalne tehnike Induktivno kuplovana plazma sa optičkom emisionom spektrometrijom (ICP-OES). Rad se bavi proučavanjem prirode smetnji (interferencija) koje utiču na kvantifikovanje navedenih metala iz ljuske jajeta i zemljišta, kao i osnovnim karakteristikama uređaja pomoću kojeg je izvršena kvantifikacija- ICP-OES. Grafički su predstavljene konstruisane kalibracione prave koje odlikuje zavisnost izmerenog signala u funkciji količine ispitivanog analita (multielementarnog referentnog standarda). Zatim, su slikovno predstavljene snimljene spektralne linije svakog od ova tri elementa na određenim talasnim dužinama u uzorcima ljusaka jaja, zemljišta i standarda. Tabelama su prikazane konačne reprezentativne koncentracije Ba, Sr i Al u uzorcima ljusaka i zemljištu. Na osnovu navedenih slikovnih i tabelarnih prikaza, zaključuje se da snimanje navedenih uzoraka pomoću ICP-OES-a remete različite vrste smetnji (interferencija), kao i da je koncentracija Al u zemljištu znatno zastupljenija naspram njegovog sadržaja u ljuskama jaja u kojima se nalazi u tragovima, dok je sadržaj Ba i Sr prisutan u određenoj koncentraciji u svim analiziranim uzorcima.

Pure and dysprosium-loaded ZnO films were grown by radio-frequency magnetron sputtering. The films were characterized using a wide variety of morphological, compositional, optical, and electrical techniques. The crystalline structure, surface homogeneity, and bandgap energies were studied in detail for the developed nanocomposites. The properties of pure and dysprosium-doped ZnO thin films were investigated to detect nitrogen dioxide (NO2) at the ppb range. In particular, ZnO sensors doped with rare-earth materials have been demonstrated as a feasible strategy to improve the sensitivity in comparison to their pure ZnO counterparts. In addition, the sensing performance was studied and discussed under dry and humid environments, revealing noteworthy stability and reliability under different experimental conditions. In this perspective, additional gaseous compounds such as ammonia and ethanol were measured, resulting in extremely low sensing responses. Therefore, the gas-sensing mechanisms were discussed in detail to better understand the NO2 selectivity given by the Dy-doped ZnO layer.

Military personnel are vulnerable to environmental or industrial exposure of engineered nanoparticles (NPs) from metals. Long-term exposure of NPs from various sources affect sensory-motor or cognitive brain functions. Thus, a possibility exists that chronic exposure of NPs affect blood-brain barrier (BBB) breakdown and brain pathology by inducing oxidative stress and/or nitric oxide production. This hypothesis was examined in the rat intoxicated with Ag, Cu or Al (50-60nm) nanoparticles (50 mg/kg, i.p. once daily) for 7 days. In these NPs treated rats the BBB permeability, brain edema, neuronal nitric oxide synthase (nNOS) immunoreactivity and brain oxidants levels, e.g., myeloperoxidase (MP), malondialdehyde (MD) and glutathione (GT) was examined on the 8th day. Cu and Ag but not Al nanoparticles increased the MP and MD levels by twofold in the brain although, GT showed 50% decline. At this time increase in brain water content and BBB breakdown to protein tracers were seen in areas exhibiting nNOS positive neurons and cell injuries. Pretreatment with insulin like growth factor-1 (IGF-1) in high doses (1 mu g/kg, i.v. but not 0.5 mu g/kg daily for 7 days) together with NPs significantly reduced the oxidative stress, nNOS upregulation, BBB breakdown, edema formation and cell injuries. These novel observations demonstrate that (i) NPs depending on their metal constituent (Cu, Ag but not Al) induce oxidative stress and nNOS expression leading to BBB disruption, brain edema and cell damage, and (ii) IGF-1 depending on doses exerts powerful neuroprotection against nanoneurotoxicity, not reported earlier.

The report summarises the monitoring activities within the National Swedish Contaminant Programmefor freshwater biota. Each monitored contaminant has been examined in pike, perch or Arctic char from32 lakes from the north to the south in Sweden.No general trend could be seen for mercury, and all samples were above the EU threshold. Lead wasgenerally decreasing and concentrations were below the target level in all lakes. Cadmiumconcentrations showed no consistent trends over the monitored period, and cadmium concentrationswere below the target level in all lakes. Chromium concentrations are below the limit of quantification(LOQ) in most lakes after 2010. For nickel, arsenic, copper, zink, silver, and aluminium there were noclear temporal trends, with both upward and downward trends. Tin concentrations were below the LOQfor most sampling sites and throughout all years of sampling.In general, downward trends were seen for; PCBs, HCHs, DDT, DDE and PCDD/Fs in all species (with afew exceptions). The chlorinated compounds generally showed a somewhat higher concentration in thesouthern parts of Sweden. Most chlorinated compounds were below the suggested target levels.No general trend was seen during the monitoring period for PBDEs. However during the most recent 10year period, downward trends were seen in pike from Bolmen. The concentration of HBCDD was underLOQ in a majority of the samples.Several of the perfluorinated carboxylic compounds showed a non-linear increase in concentration inarctic char, while no trend was seen for PFOS. In perch, PFOS has decreased since 1980 while upwardtrends were seen for several carboxylic acids from 1980. Higher concentrations of perfluorinatedcompounds can in general be seen in the southern part of Sweden. In all lakes, PFOS is below thetarget level for all species.

Six Mg2+ co-doped Lu3Al5O12:Ce scintillating garnet films prepared by liquid phase epitaxy, with Mg concentration from 0 to 3000 ppm, were irradiated by X-rays and underwent a series of thermoluminescence measurements from 10 to 720 K. The thermoluminescence signal of epitaxial films originated purely from electron recombination at Ce ions. It was found that the area of all the peaks present in thermoluminescence glow curves decreased rapidly with the increase of Mg concentration; for 3000 ppm, the decrease was by 4–5 orders of magnitude. Moreover, the bright burn effect was significantly suppressed by Mg co-doping. Possible explanations, i.e., trap concentration reduction or increased competition in free electron capture between thermoluminescence traps and Ce4+ centers, were discussed.

©2020 American Chemical Society This work was supported by the Spanish Ministry of Innovation, Science and Technology and Spanish Ministry of Economy through Research Projects MAT2014-54372-R, MAT2017-82252-R, RTI2018-097195-B-I00 and PCIN-2017-106. This work is partially supported by ShanghaiTech ChEM under the grant number EM02161943. We thank the National Facility ELECMI ICTS and CAI for nuclear magnetic resonance (UCM) and XRD (UCM) facilities. J.B. and A.T.P. acknowledge financial support from the Comunidad de Madrid through the Talento fellowship 2017-T2/IND-5617 and PR65/19 Research Project, respectively., The effect of In^(3+) substitution by Ga^(3+) or Al^(3+) on the structure and luminescent properties of Zn_7In_(2-x)M_xO_10 (M = Ga or Al; 0 <= x <= 1) oxides has been investigated by means of high spatial resolution X-ray spectroscopy and high-angle annular dark-field images, combined with magic angle spinning nuclear magnetic resonance spectroscopy. Local structural variations have been identified for the Al- and Ga-doped samples through the analysis of atomically resolved chemical maps and the identification of their structural environment within the wurtzite lattice. In3+ is distributed in a zig-zag modulation, while Al^(3+) and Ga^(3+) are located in a flat distribution at the center of the wurtzite block. Density functional theory calculations provide unambiguous evidence for the preferential flat location of Ga^(3+) and Al^(3+) associated with the different strains introduced in the structure as a result of their ionic radii. The characterization of the photoluminescence response reveals the appearance of new radiative recombination pathways for the doped materials because of the presence of new defect levels in the band gap of the Zn_7In_2O_10 structure., Ministerio de Economía y Competitividad (MINECO), Ministerio de Ciencia e Innovación (MICINN), Comunidad de Madrid, Depto. de Física de Materiales, Fac. de Ciencias Físicas, TRUE, pub

Refractory inclusions [Ca-Al-rich Inclusions (CAIs) and Amoeboid Olivine Aggregates (AOAs)] in primitive meteorites are the oldest Solar System solids. They formed in the hot inner protoplanetary disk and, as such, provide insights into the earliest disk dynamics and physicochemical processing of the dust and gas that accreted to form the Sun and its planetary system. Using the short-lived 26Al to 26Mg decay system, we show that bulk refractory inclusions in CV (Vigarano-type) and CR (Renazzo-type) carbonaceous chondrites captured at least two distinct 26Al-rich (26Al/27Al ratios of ∼5 × 10−5) populations of refractory inclusions characterized by different initial 26Mg/24Mg isotope compositions (μ26Mg*0). Another 26Al-poor CAI records an even larger μ26Mg*0 deficit. This suggests that formation of refractory inclusions was punctuated and recurrent, possibly associated with episodic outbursts from the accreting proto-Sun lasting as short as <8000 yr. Our results support a model in which refractory inclusions formed close to the hot proto-Sun and were subsequently redistributed to the outer disk, beyond the orbit of Jupiter, plausibly via stellar outflows with progressively decreasing transport efficiency. We show that the magnesium isotope signatures in refractory inclusions mirrors the presolar grain record, demonstrating a mutual exclusivity between 26Al enrichments and large nucleosynthetic Mg isotope effects. This suggests that refractory inclusions formed by incomplete thermal processing of presolar dust, thereby inheriting a diluted signature of their isotope systematics. As such, they record snapshots in the progressive sublimation of isotopically anomalous presolar carriers through selective thermal processing of young dust components from the proto-Solar molecular cloud. We infer that 26Al

The report summarises the monitoring activities within the National Swedish Contaminant Programme for freshwater biota. Each monitored contaminant has been examined in pike, perch or Arctic char from 32 lakes from the north to the south in Sweden. No general trend could be seen for mercury, and all samples were above the EU threshold. Lead was generally decreasing and concentrations were below the target level in all lakes. Cadmium concentrations showed no consistent trends over the monitored period, and cadmium concentrations were below the target level in all lakes. Nickel, arsenic, and copper showed upward trends in 30-50 % of the sampling sites. For zink, silver, and aluminium there were no clear temporal trends. Tin concentrations were below the limit of quantification for most sampling sites and throughout all years of sampling. In general, downward trends were seen for; PCBs, HCHs, DDT, DDE and PCDD/Fs in all species (with a few exceptions). The chlorinated compounds generally showed a somewhat higher concentration in the southern parts of Sweden. Most chlorinated compounds were below the suggested target levels. No general trend was seen during the monitoring period for PBDEs. However during the most recent 10 year period, downward trends were seen in pike from Bolmen. The concentration of HBCDD was under LOQ in a majority of the samples. Several of the perfluorinated carboxylic compounds showed an increase in concentration in arctic char, while no trend was seen for PFOS. In perch, PFOS has decreased since 1980 while upward trends were seen for several carboxylic acids from 1980. Higher concentrations of perfluorinated compounds can in general be seen in the southern part of Sweden. In all lakes, PFOS is below the target level for all species.

This work developed a well-bonded bcc/fcc bimetal interphase, which was produced by a two-step process involving diffusion bonding and conventional rolling. The high-quality interface maintained its integrity even at fracture. The earlier tensile instability in the core steel layer was constrained by the neighboring stable Cu layers on both sides, leading to extra strain hardening and consequently higher ductility. An increase in twin density or slip bands and shear deformation between the layers might be the primary causes for the observed hardening behaviors in the near-interface regions.

Ägarlägenheter kan ha flera fördelar med bland annat ökat boendeinflytande för den enskildelägenhetsinnehavaren, vilket var ett av målen när lagen infördes. Långt färre ägarlägenheter har bildats änvad som förutspåddes när boendeformen infördes i Sverige år 2009. Därmed är det relevant attundersöka varför ägarlägenheter inte har fått det genomslag som förväntades. Examensarbetet syftar tillatt ta reda på hur rättsreglerna påverkar bildandet av ägarlägenheter samt hur övriga aspekter kanpåverka bildandet av ägarlägenheter. Samt därefter komma med förslag till vad det finns för behov avregelförändringar för ägarlägenheter. I detta examensarbete har den rättsdogmatiska metoden använts där förarbeten, doktrin ochforskningsartiklar ger en bakgrund till forskningsområdet. För att ta reda på hur reglerna förägarlägenheter tillämpas och upplevs av de aktörer som använder eller berörs av reglerna i praktikengenomfördes även en enkätundersökning riktad till förrättningslantmätare. Intervjuer genomfördes medexploatörer, förrättningslantmätare, experter på 3D-fastighetsbildning och personer som deltagit i arbetetmed att ta fram utredningar. En fallstudie har även utförts för att gå in djupare i en lantmäteriförrättningsom var i gränslandet för om en syftestolkning av den så kallade åttaårsregeln kunde göras eller inte. Det faktum att boendeformen år 2009 infördes med viss försiktighet och endast tilläts att bildas vidnyproduktion och i befintliga bostäder som inte haft boendeverksamhet de senaste åtta åren har troligtvislett till att färre ägarlägenheter har bildats än vad det annars hade gjort. Fastighetsbildningsreglernabegränsar antalet ägarlägenheter som bildas, men det finns även andra orsaker till varför flerägarlägenheter inte har bildats. Många aktörer var inte redo att hantera boendeformen när den infördesoch det kan även vara så att allmänheten inte har tillräcklig kunskap om vad boendeformen innebär.Problem i tillämpningen av reglerna har främst uppkommit i samband m, There can be several advantages to condominiums (sv. ägarlägenheter). Amongst them are the increasedinfluence for the residents, which was one of the objectives when the law was introduced. The number ofcondominiums that have been formed in Sweden are significantly lower than what was predicted beforecondominiums were introduced in Sweden in 2009. Therefore, it is relevant to investigate whycondominiums have not had the expected breakthrough. The purpose of this thesis is to analyse how thelegal rules and other aspects affect the amount of condominiums that are being built. Furthermore, thethesis aims to suggest changes, that are needed, to the rules and application of them regarding propertyformation of condominiums. The methods that have been used in this thesis are document studies, a survey, semi structuredinterviews and a case study. The method of document studies was used to get an understanding of thebackground of the research field by analysing the legislative history, literature within the field andresearch articles. Next, to get an understanding of how the laws of condominiums are applied andperceived by surveyors in reality a survey was used where surveyors with experience of cadastralprocedure of condominiums were the target group. Furthermore, semi structured interviews were alsoused to get an understanding of how the laws of condominiums are applied and perceived in reality byinterviewing land developers, surveyors, experts in 3D-property and people that have participated withthe work of government inquiries. Finally, a case study was used to get a deeper understanding of acadastral procedure. The cadastral procedure was a critical case for the so-called eight-year rule (sv.åttaårsregeln) and whether or not an interpretation of the purpose of the rule could be used. The fact that the tenure condominiums were introduced with caution in Sweden and condominiums wereonly allowed to be built in newly produced housing or in buildings which had not been used

©2019 Elsevier Science This work was supported by MINECO/FEDER (MAT 2016-81118-P and MAT 2015-65274-R). O.B. thanks Aula del Estrecho fellowship., This study reports on the deposition of highly transparent, n-type ZnO thin films on glass substrate at 450 C using spray pyrolysis processing, with the simultaneous insertion of yttrium (Y) at different percentages (0, 2, 5, 7 at%) as a dopant. The effect of Y doping on the structure, morphology and optical properties of Y doped ZnO (ZnO:Y) was investigated for optoelectronic applications. The obtained thin films were characterized by means of X-ray diffraction, field-emission scanning electron microscopy (FESEM), UV visible absorbance measurements, photoluminescence (PL) and cathodoluminescence (CL) spectroscopy. The as-prepared films exhibit well-defined hexagonal wurtzite structure grown along [002]. Field emission scanning electron microscope micrographs of the pure ZnO and ZnO:Y showed that the films acquired a dominance of hexagonal-like grains, the morphology was influenced by Y incorporation. All the films showed high transparency in the visible domain with an average transmittance of 83%. The band gap energy, Eg, increased from 3.12 eV to 3.18 eV by increasing the Y doping concentration up to 5 at% and then decreased to 3.15 eV for 7 at% Y content. The PL and CL measurements reveal a strong ultraviolet (UV) emission, suggesting that the as-prepared ZnO:Y thin films can potentially be used in optoelectronic devices., Ministerio de Economía y Competitividad (MINECO)/FEDER, Depto. de Física de Materiales, Fac. de Ciencias Físicas, TRUE, pub

In developing the next generation of Calphad databases, new models are used in which each term contributing to the Gibbs energy has a physical meaning. To continue the development, finite temperature density-functional-theory (DFT) results are used in the present work to discuss and suggest the most applicable and physically based model for Calphad assessments of solid phases above the melting point (the breakpoint for modeling the solid phase in previous assessments). These results are applied to investigate the properties of a solid in the superheated temperature region and to replace the melting temperature as the breakpoint with a more physically based temperature, i.e., where the superheated solid collapses into the liquid. The advantages and limitations of such an approach are presented in terms of a new assessment for unary aluminum., QC 20190401

The report summarises the monitoring activities within the National Swedish Contaminant Programme for freshwater biota. Each monitored contaminant has been examined in pike, perch or Arctic char from 32 lakes from the north to the south in Sweden. No general trend could be seen for mercury, and all samples were above the EU threshold. Lead was generally decreasing. Cadmium concentrations showed no consistent trends over the monitored period, and cadmium concentrations in 2017 were below the suggested threshold in all lakes. Nickel showed a general upward trend in 30% of the perch lakes. Arsenic concentrations showed no general spatial pattern and were increasing in liver from Arctic char, pike and perch from approximately 50 % of the sampling sites. Tin concentrations decreased in the majority of the perch time series during the most recent ten years. For copper, no general spatial pattern existed for concentrations in perch and about one third of the monitored lakes showed an upward trend. No general trend was observed for silver and aluminum. In general, downward trends were seen for; PCBs, HCHs, DDT, DDE and PCDD/Fs in all species (with a few exceptions). The chlorinated compounds generally showed a somewhat higher concentration in the southern parts of Sweden. Most chlorinated compounds were below the suggested target levels. No general trend was seen during the monitoring period for PBDEs. However an indication of decreasing concentrations of PBDEs is seen in the most recent years. The concentration of HBCDD was under LOQ in a majority of the samples. Several of the perfluorinated carboxylic compounds showed an increase in concentration in arctic char, while PFOS and FOSA decreased. In perch PFOS has decreased since 1995. Higher concentrations of perfluorinated compounds can in general be seen in the southern part of Sweden. In all lakes, PFOS is below the target level for all species.

En esta investigación se buscó obtener Ácido Poliláctico (PLA) utilizando Ácido Láctico de origen biológico fermentado por cepas nativas de Lactobacillus casei y Staphylococcus aureus en un biorreactor PFTR. El biorreactor diseñado tiene un volumen total de 1.236 litros, trabajó a una temperatura de 36 °C. El procedimiento se inició con el aislamiento, caracterización e identificación de dos microrganismos. Las cepas bacterianas fueron Lactobacillus casei y Staphylococcus aureus que se sembraron en sus respectivos medios de cultivos selectivos, que fueron para Lactobacillus casei el medio Rogosa y para Staphyloccocus aureus el medio Manitol Salado. Posteriormente se procedió a determinar la cinética de cada cepa de acuerdo al conteo celular directo mediante el uso de una Cámara de Neubauer dando como resultado, 16.000 Cel/mm3 para la cepa de Lactobacillus casei y 28.000 Cel/mm3 para la cepa de Staphylococcus aureus. Las cepas nativas de Lactobacillus casei y Staphylococcus aureus se adaptaron a un medio especial de producción específico para Ácido Láctico. Una vez reunido estos datos, se procedió al encapsulamiento en perlas de Alginato de sodio con mezcla de CaCl2, que posteriormente fueron llenadas en el Biorreactor PFTR, dicho reactor biológico fue diseñado y construido según las exigencias de las bacterias y de la producción requerida de Ácido Láctico (AL). Para ello se diseñaron modelos en 2D y 3D que simulaban la construcción del reactor biológico tipo Flujo Pistón (PFTR). Luego de producir Ácido Láctico fermentado, posteriormente se realizó un análisis de Espectrofotometría Infrarroja (FT-IR) en donde declara que la cepa de Lactobacillus casei, dio una probabilidad de 80% mientras que la cepa de Staphylococcus aureus, dio una probabilidad de 73% a Ácido Láctico, según la biblioteca espectral de la Universidad Nacional de San Agustín, lo cual permitió concluir que la cepa nativa de Lactobacillus casei aislada presentó mayor performance para generar Ácido Lácti

Attutforska och definiera vilka faktorer som bygger upp en långsiktigt hållbarverksamhet med välmående och flexibla medarbetare är viktigt i ett samhälle medkrav på snabba förändringar. Appreciative leadership är en ledarskapsfilosofivars praktik i teorin kommer ur de fem kärnstrategier (5 I) och vars förväntadeeffekter starkt korrelerar med det som i litteraturen be-skrivs somfriskfaktorer i arbetslivet. Syftet med arbetet är att bidra med kunskap kringhur de fem kärnstrategierna kan omsättas i praktik och utforska om utövandetger effekter på den psykosociala arbetsmiljön. I studien användes mixed methodsoch resultatet har sin grund en kvantitativ enkät som följdes upp medkvalitativa djupintervjuer samt fokusgrupp. Till grund för resultatet låg ocksåövergripande observationer samt dokumentanalys. Resultatet visar att samtligafem kärnstrategier i hög grad finns närvarande i verksamheten och att samtligamed-arbetare skattade och beskrev sin psykosociala arbetsmiljö som utmärkt. Detkunde också konstateras att utövande av de fem kärnstrategierna i verksamhetentill stor del sker genom ett antal väl valda arbetssätt och metoder, blandannat en stark hjälpande kultur, inre ledarskap och klar kommunikation. Iresultatet går även att utläsa att det finns utmaningar med arbets-sättet ochatt det finns några grundläggande förutsättningar som beskrivs viktiga för attarbets-sättet som helhet ska fungera, däribland hög grundbemanning och starkgemensam värde-grund. Utifrån att kärnstrategiernas praktiska utövande isamtliga steg i studien beskrivs bidra till arbetslivets friskfaktorer ärslutsatsen att det är högst troligt att ett medvetet och praktiskt utövande av5 I kan bidra till en hälsosam arbetsplats, öka arbetsglädjen och iförlängningen minska risken för arbetsrelaterad ohälsa., In a society which demands rapid change, exploring and defining which factors build up a long-term sustainable organisation with prosperous and flexible employees is important. Appreciative leadership is a leadership philosophy which can be split into five core strategies. (5 I) These strategies strongly correlate with what is described in the literature as ”health factors” in the work environment. The purpose of this study was to discover how the five core strategies can be put in to practice and to explore what effect this has on the psychosocial work environment. The study used mixed methods and the result is based on a quantitative questionnaire that was followed up by qualitative in-depth interviews and focus group. The basis for the result was also general observation and a brief literature review. The result showed that all five core strategies were present in the organization and that all em-ployees described their psychosocial environment as excellent. It was also noticed that the practice of the five core strategies in the organization takes place through a number of well-chosen methods, including a strong supportive culture, internal leadership and clear communi-cation. The result also revealed that there were challenges with the actual way of working and that there were some basic conditions that were described as important for the method as a whole. These included high staffing and strong common values. The practice of the core stra-tegies were described as contributing to the health factors of working. It was concluded that it is highly likely that a conscious practice of 5 I can contribute to a healthy work place, increase work satisfaction and in the long term decrease the risk for work-related illness., 2019-06-27

The aim of this master thesis was to establish if sodium is trapped in aluminium current collectors, which in turn could affect the capacity fade in sodium-ion battery systems. In the case of lithium-ion batteries, previous studies have shown that a trapping mechanism, where lithium diffuses through the active material and current collectors, can explain the capacity fade observed for several systems. However, no such reports have been published in the sodium case, motivating this pioneering investigation. Contact samples of sodium and aluminium current collector material confirmed the uptake of sodium as shown by ICP-AES analyses. The uptake of sodium in the aluminium was equivalent to a charge of 0.4 µAh after 70 days of contact at 55°C. The main characterisation method was galvanostatic plating and stripping of sodium on aluminium in a pouch-cell configuration. When using a bare aluminium working electrode with a metallic sodium counter electrode in a 1 M NaPF6/diglyme electrolyte, the galvanostatic cycling showed coulombic efficiency instabilities. It was concluded that a more stable, high efficient plating-stripping would be needed to quantify the effects of sodium trapping with the employed electrochemical methods. Coulombic efficiency values that exceeded 100 % were attributed to the oxidation of disconnected (detached) sodium from previous plating cycles. On consecutive cycles some of the disconnected sodium got reconnected, resulting in coulombic efficiency values well over 100 %.

SIRIUS - a 6 MV pelletron accelerator at ANSTO was delivered and installed in 2014-2015. After initial testing and commissioning phase we have now moved into routine operations. Quality assurance data from the past 2 years demonstrates the excellent performance and SIRIUS is now our preferred instrument for 10 Be, 26 Al and 36 Cl analyses.

This paper presents the characterization of the intermetallic phases of laser-welded Al-Cu joints by synchrotron trough-the-substrate microdiffraction combined with SEM/EDX and etched/non-etched optical micrographs. Transmission microdiffraction offers the spatial resolution and beam flux necessary to study the intermetallic phases, which in conjunction with the excellent contrast of etched micrographs, rendered possible the phase identification. It was found that the major phases are Al2Cu (θ), Al4Cu9 (γ1) and AlCu (η2) were formed. The Al3Cu4 (ζ1) and δ phases where formed in less amount and found to be the primary cause for cracks inside the weld seam and therefore for the failure of the joint.

Accelerated NVDA (VDA 233-102) tests were performed on bare Zn and Al sheets, Galfan coating (Zn-5 wt-% Al) and Galvalume coating (Zn-55 wt-% Al) on steel. ZnO, Zn(OH)(2) and Zn-5(OH)(8)Cl-2 center dot H2O were the main corrosion products identified on both bare Zn sheet and Galfan. AlOOH and Al(OH)(3) were preferentially formed on bare Al sheet and Galvalume. In addition, Zn-Al-containing corrosion products, Zn6Al2(OH)(16)CO3 center dot 4H(2)O and/or Zn2Al(OH)(6)Cl center dot 2H(2)O were identified on both Galfan and Galvalume. Corrosion products of Zn6Al2(OH)(16)CO3 center dot 4H(2)O with a platelet morphology were preferentially formed in the zinc-rich interdendritic regions of the Galvalume surface. Galfan revealed a similar corrosion behaviour as bare Zn sheet, whereas Galvalume exhibited similar behaviour as bare Al sheet. Deposition of chlorides highly influenced the corrosion of both Galvalume and Al rather than Galfan and Zn due to the rapid local damage of the compact native thin film of Al2O3., QC 20180724

The report summarises the monitoring activities within the National Swedish Contaminant Programme for freshwater biota. Each monitored contaminant has been examined in pike, perch or Arctic char from 32 lakes from the north to the south in Sweden. No general trend could be seen for mercury, and all samples were above the EU target level. Lead was generally decreasing. Nickel showed a general upward trend in 50% of the perch lakes. An increase, or indication of an increase, was seen for chromium during the last ten years. Zinc concentrations were decreasing in a majority of the perch samples and in pike from Lake Storvindeln. Arsenic concentrations were increasing in Arctic char and pike from all sites and in perch from a third of the sampling sites. Tin concentrations decreased in the majority of the perch time series during the most recent ten years. No general trend was observed for copper, silver, aluminum, bismuth, and cadmium. In general, downward trends were seen for; PCBs, HCHs, DDT, DDE and PCDD/Fs in all species (with a few exceptions). The chlorinated compounds generally showed a somewhat higher concentration in the southern parts of Sweden. Most chlorinated compounds were below the suggested target levels. No general trend was seen during the monitoring period for PBDEs. Concentrations of PBDEs in Lake Bolmen increased from the 60s and peaked in 1992/1993 and have subsequently decreased. The concentration of HBCDD was under LOQ in a majority of the samples. Several of the perfluorinated carboxylic compounds showed an increase in concentration in arctic char, while PFOS and FOSA decreased. In perch PFOS has decreased since 1995. Higher concentrations of perfluorinated compounds can in general be seen in the southern part of Sweden. In all lakes, PFOS is below the target level for all species.

Aluminum alloys are of great importance in the automotive and truck industries due to the weight savings that they can help to achieve. However, the use of such alloys in applications where they are subjected to alternating stresses requires knowledge about their fatigue behavior. Moreover, extrusion induces a strong texture and microstructural heterogeneity in the material and gives a surface with long grooves parallel to the extrusion direction (ED), so-called die lines. This anisotropy in surface conditions and microstructure may affect the fatigue properties. To investigate how die lines and microstructure affects fatigue in aluminum, the high cycle fatigue properties cycles of three peak-aged AlMgSi alloys were evaluated. Flat profiles of 6060-T6, 6063-T6 and 6082-T6 were tested in uniaxial stress (R = 0.1) in a servo-hydraulic fatigue testing machine with a constant stress amplitude. Two specimen types were tested for 6063 and 6082: one with the ED parallel to the loading direction (longitudinal), and one with the ED perpendicular to it (transverse). It was found that both 6063 and 6082 displayed anisotropy in fatigue lives, with the longitudinal orientation performing better. The anisotropy was far stronger in 6082 than in 6063. Furthermore, 6060 longitudinal displayed higher fatigue strength than 6063 longitudinal at higher stress amplitudes, but lower fatigue strength at lower amplitudes. Metallographic investigations with SEM indicated that grain boundaries of the surface-layer grains were involved in the initiation of the fatigue crack. Intergranular crack propagation and separation was observed on the fracture surfaces, especially in the surface layer. The extruded surfaces also showed evidence of intergranular crack propagation. The exact sites of crack initiation could not be found so it could not be proven conclusively that die lines were sites of crack initiation in transverse specimens, but there were some indications from metallographic and macrofr, Aluminiumlegeringar används mycket i bilindustrin på grund av de viktbesparingar som kan åstadkommas. Användandet av sådana legeringar i tillämpningar där det utsätts för cykliska laster kräver dock kunskap om deras utmattningsbeteende. Dessutom skapar extrusionsprocessen en stark textur och heterogenitet i mikrostrukturen och resulterar i en yta med fina fåror parallella med pressriktningen, s.k. die lines. Anisotropin i ytbeskaffningen och mikrostrukturen kan påverka utmattningshållfastheten. För att undersöka hur die lines och mikrostruktur påverkar utmattningen i aluminium testades högcykelutmattningsegenskaperna hos tre toppåldrade AlMgSi legeringar. Platta profiler av 6060-T6, 6063-T6 och 6082-T6 testades i enaxlig dragspänning (R = 0.1) i en servohydraulisk utmattningsmaskin med konstant lastamplitud. Två sorters provstavar testade av 6082 och 6063: en med pressriktningen parallell med lastriktningen (längsriktning) och en med pressriktningen vinkelrät mot lastriktningen (tvärriktning). Både 6063 och 6082 uppvisade olika utmattningsliv beroende på pressriktningens orientering mot lastriktningen, där längsriktningen hade längre utmattningsliv för båda legeringarna. Anisotropin var mycket starkare in 6082 än 6063. Dessutom uppvisade 6060 i längsriktningen högre utmattningsstyrka än 6063 vid höga lastamplituder, men lägre utmattningsstyrka vid lägre lastamplituder. Metallografiska undersökningar med SEM indikerade att korngränser i ytlagret var involverade i sprickinitieringen. Spricktillväxt i och separation av korngränser observerades på brottytorna, speciellt i ytlagret. Den extruderade ytan visade också bevis för interkristallin spricktillväxt. De exakta platserna för sprickinitering kunde inte hittas så det kunde inte entydigt bevisas att sprickinitieringen skedde i die lines i provstavar med pressriktningen vinkelrät mot lastriktningen, men i metallografiska och fraktografiska undersökningar fanns vissa indikationer att så var fallet.

The diagnosis of amyloidosis (A) is confirmed by the deposit of amyloid with the Congo red stain in the biopsy of the organ that is suspected to be affected. The identification of the amyloid protein (PA) is necessary to guide the treatment. In Argentina we do not have techniques such as mass spectrometry (EM) or electron microscopy (EM) with immuno-histochemistry, so we designed a systematic to ar-rive at the diagnosis.Design: ambispective cohort of consecutive patients with diagnosis of A by biopsy of the Institutional Registry of Amyloidosis of the Hospital Italiano de Buenos Aires (RIA), 01/04 / 2012-7 / 2017. The evaluation consisted of: free light chains in serum and urine, the detection of clonality of plasma cells in bone marrow, measurement of SAA, and sequencing of the TTR gene. Results: A total of 181 patients with A were included: 37% (67) AL, 16% (29) A Senile, 10% (19) AA, 4.4% (8) TTR mutated, 22.6% (41) A localized and in 9% (17) the responsible protein could not be identified. The 37% (67) met criteria for AL, 42% had a detectable monoclonal band corresponding to the isotypes L-lambda 44%, IgG-lambda 28 %, IgG-kappa 10%, L-kappa 6% and other isotypes 12%. Renal involvement was detected in 73% (49) and cardiac involvement in 66% (44). The differential diagnosis with A senil at the cardiac level was made with a PYP scintigraphy (negative in AL). In the A senil, 16% (29) presented TTR wild type. The cardiac commitment was 100% (29) and in-cluded biomarkers: ProBNP or BNP 100% (29/29) and compatible images in the echocardiogram 85% (23/27) and magnetic resonance 88% (24/27) . Car-diac scan with positive PYP.The mutations detected in the hereditary TTR A were: 4 Val30Met (familial hereditary polyneuropathy, classic and late onset), 2 Thr60Ala (cardiac amyloidosis), 1 Ala36Pro (polyneuropathy), 1 Tyr-114Cys (vitreous amyloidosis).Of the cases of AA, 10% (19) yielded positive results in immunohistochemistry, of which 80% (15) had re-nal compromise, 26% (5), El diagnóstico de amiloidosis (A) se confirma evidenciando el depósito de amiloide con la tinción rojo Cojo en la biopsia del órgano afectado. La identificación de la proteína amiloide (PA) es necesaria para orientar el tratamiento. En Argentina no contamos con técnicas como la espectrometría de masa (EM) o inmunomicroscopía electrónica (ME) a nivel asistencial, por lo que diseñamos una sistemática para arribar al diagnóstico. Diseño : cohorte ambispectiva de pacientes consecutivos con diagnóstico de A realizado por biopsia del Registro Institucional de Amiloidosis del Hospital Italiano de Buenos Aires (RIA), 01/04/2012-7/2017. La evaluación constó de determinación de cadenas livianas libres kappa y lambda en suero, la detección de la clonalidad de plasmocitos en médula ósea, secuenciación del gen de la TTR, inmunohistoquímica para proteína AA, centellograma óseo con pirofosfato junto con la historia clínica. Resultados: Se incluyeron 181 pacientes con A: el 37% (67) AL, 16% (29) A Senil, 10% (19) AA, 4,4 % (8) TTR mutada, 22,6% (41) A localizada y en el 9% (17) no se pudo identificar la proteína responsable. El 37% (67) cumplieron criterios de AL, el 42% tuvieron banda monoclonal detectable correspondiente a los isotipos L-lambda un 44 %, IgG-lambda un 28%, IgG-kappa un 10%, L-kappa un 6% y otros isotipos un 12%. Se detectó compromiso renal en un 73% (49) y cardíaco en un 66% (44). El diagnóstico diferencial con A Senil a nivel cardíaco se hizo con centellograma con PYP (negativo en AL). En la A senil, el 16% (29) la variante natural (wild type). El compromiso cardíaco fue del 100% (29) e incluyo biomarcadores: ProBNP o BNP 100% (29/29) e imágenes compatibles en el ecocardiograma 85% (23/27) o en la resonancia nuclear magnética 88%(24/27) y centellograma cardíaco con PYP positivo. Las mutaciones detectadas en la A hereditaria TTR fueron: 4 Val30Met (polineuropatía hereditaria fa-miliar, clásica y de comienzo tardío), 2 Thr60Ala (amiloidosis cardíaca), 1 Ala36Pro (p

Havs- och vattenmyndigheten (HaV) ska enligt regleringsbrevet för 2016 tillsammans med Statens jordbruksverk redovisa en resultatbedömning och de viktigaste effekterna av verksamheten inom EU:s gemensamma fiskeripolitik (GFP) under 2016. Redovisningen ska inkludera en bedömning av eventuell påverkan av GFP på utvecklingsländer. I denna rapport behandlas även aktuella frågor som inte strikt hör hemma inom GFPn, men som bedöms ha effekter på eller kopplingar till verksamheten inom denna. Enligt instruktionen ska HaV inom sitt ansvarsområde bland annat vara pådrivande, stödjande och samlande vid genomförandet av miljöpolitiken och verka för en hållbar förvaltning av fiskeresurserna. Myndighetsarbetet för GFPn är delat mellan Jordbruksverket och HaV. Jordbruksverket ska, enligt instruktionen, medverka till att främja och utveckla fiskerinäringen, vattenbruket och fisketurismen. Verket är förvaltande myndighet för fiskerifonden samt ansvarig för handel- och marknadsfrågor. Följaktligen har Jordbruksverket skrivit de delar i rapporten som rör struktur- och marknadspolitik, vattenbruk samt delar av datainsamling och av internationella organisationer (kapitel 6, 7 och 8 samt delar av kapitel 5 och 9). Sverige har under året fortsatt att driva frågan om ett hållbart fiske bl.a. genom att framhålla att den övergripande målsättningen är att förvaltningsåtgärder ska beslutas i linje med den reformerade gemensamma fiskeripolitikens mål och principer samt att den vetenskapliga rådgivningen ska utgöra grund för besluten. Även kommissionen har drivit en linje där biologisk rådgivning har varit ledord. Detta har tydliggjorts bl.a. i samband med de senaste årens förhandlingar om fiskemöjligheter där kommissionen, i tillämpliga fall förespråkat TAC-nivåer i linje med maximal hållbar avkastning (MSY). Det är emellertid värt att ha i beaktande att många bestånd saknar MSY-rådgivning varför avvägningar och värdering av vad som kan anses vara lämplig nivå för TAC:er, samt beaktande av, Det finns inga författare namngivna i rapporten.Citat från förordet: "Flera medarbetare på Havs- och vattenmyndigheten och Statens jordbruksverk har bidragit med underlag till denna rapport."

In developing the next generation of Calphad databases, new models are used in which each term contributing to the Gibbs energy has a physical meaning. Harmonic vibrations of atoms are modelled using the Einstein temperature; anharmonic vibrations, electronic and magnetic contributions to the solid phases are represented by specific terms. The two-state model is used for the liquid phase. To continue the development, a new description for unary aluminum is presented in this work. In particular, finite temperature density-functional-theory (DFT) results are used to discuss and suggest the most applicable and physically based model for Calphad assessments of solid phases above the melting point., QC 20171010

Sedan 1970-talet har ålbeståndet minskat rejält och under de senaste decennierna har man försökt hitta en lösning på detta problem. En ökad naturlig rekrytering kan hjälpa ålarnas återhämtning. Varje år fastnar en stor mängd juvenila ålar vid vattenkraftverk. För att hjälpa ålarna ta sig förbi dessa kan man installera ramper, vilka hjälper ålarna att klättra förbi vattenkraftverken. Syftet med studien var att ta reda på vilken typ av substrat i ramper vid dessa vattenkraftverk som ålynglen föredrar. Studien utfördes utomhus i två odlingsbassänger där sex stycken ramper hade installerats. Den huvudsakliga studien bestod av ett selektionstest där ålynglen fick välja mellan tre olika substrat. Man antecknade också om det var några yngel som valde att stanna kvar, detta för att kunna testa om det fanns någon signifikant skillnad mellan importerade och vilda ålyngel när det gäller de yngel som inte valt någon av ramperna. Sammanlagt 500 yngel (vilda N=235, importerade N=265) var med i studien. Ålynglen placerades i nätkassar nedanför ramperna. Där hade de möjligheten att antingen välja ett av substraten och vandra uppför rampen, eller stanna kvar i bassängen. De tre substraten som testades var plastkätting, FishPass™ rigid brush mixed green (FishPass™) och Diadrain 25H (D-25). Resultatet blev att både de vilda och de importerade ålynglen föredrog FishPass™ och D-25 framför plastkätting. Det fanns ingen signifikant skillnad mellan FishPass™ och D-25. Man kom också fram till att signifikant fler vildfångade ålar än importerade valde att stanna kvar istället för att klättra upp för en ramp. Resultatet från den här studien säger att vi kan öka antalet juvenila ålar som tar sig förbi vattenkraftverk. Placerar man ut ramper klädda med antingen FishPass™ eller D-25 vid de vattenkraftverk där juvenila ålar har svårt att passera så kan man på så sätt hjälpa ålarnas naturliga rekrytering., Since the 1970s, eel stocks have declined, and in the recent decades people have been trying to find a solution to this problem. An increased natural recruitment could help the eels to recover. Each year a large quantity of juvenile eels get stuck at hydroelectric plants. To help the eels pass by these plants, ramps can be installed, which help the eels to pass the dams. The purpose of the study was to find out what type of substrate in ramps at these hydropower plants that juvenile eels prefer. The study was conducted in two outdoor hatchery ponds where six ramps had been installed. The main study consisted of a selection test where juvenile eels had to choose between three different substrates. It was also recorded if there were some juveniles who chose to remain, in order to test if there was a significant difference between imported and wild eels when it comes to individuals that have not selected any of the ramps. A total of 500 juveniles (Wild N = 235, Imported N = 265) were included in the study. The juvenile eels were placed in net enclosures beneath the ramps, and had to choose one of the substrates and climb the ramp, or else remain in the net enclosure. The three substrates tested were plastic chain, Fish Pass ™ rigid brush mixed green (Fish Pass™) and Diadrain 25H (D-25). I found that both the wild and imported eels preferred Fish Pass™ and D-25 instead of the plastic chain. There was no significant difference between Fish Pass™ and D-25. It was also found that significantly more wild-caught than imported eels chose to stay in the enclosure instead of climbing up a ramp. The results from this study indicate that we can increase the number of juvenile eels that successfully pass by hydroelectric plants. If we place ramps covered with either Fish Pass™ or D-25 at the hydropower plants, we can help the eel’s natural recruitment.

Aluminum and Copper were joined using the laser-based braze-welding process. By avoiding the intermixture of both conductive materials, the formation of brittle intermetallic compounds is strongly reduced. This results in a tough, ductile connection with reduced electric resistance. This paper de-scribes a method, which is based on the 4-wire method, to measure the resistance of the weld seam. The arrangement of the conductive electrodes directly on top and bottom of the weld seam signifi-cantly increases the accuracy of the measured resistances, thus offers a direct estimation of the inter-metallic layer thickness. The electric measuring of the layer thickness is a non-destructive method, which assists in the reduction of the post-process effort (cross sections, pull tests, hardness measure-ments) and decreases the lead-time by reducing the time needed for the identification of suitable laser process parameters.

Havs- och vattenmyndigheten (HaV) ska enligt regleringsbrevet för 2016 tillsammans med Statens jordbruksverk redovisa en resultatbedömning och de viktigaste effekterna av verksamheten inom EU:s gemensamma fiskeripolitik (GFP) under 2016. Redovisningen ska inkludera en bedömning av eventuell påverkan av GFP på utvecklingsländer. I denna rapport behandlas även aktuella frågor som inte strikt hör hemma inom GFPn, men som bedöms ha effekter på eller kopplingar till verksamheten inom denna. Enligt instruktionen ska HaV inom sitt ansvarsområde bland annat vara pådrivande, stödjande och samlande vid genomförandet av miljöpolitiken och verka för en hållbar förvaltning av fiskeresurserna. Myndighetsarbetet för GFPn är delat mellan Jordbruksverket och HaV. Jordbruksverket ska, enligt instruktionen, medverka till att främja och utveckla fiskerinäringen, vattenbruket och fisketurismen. Verket är förvaltande myndighet för fiskerifonden samt ansvarig för handel- och marknadsfrågor. Följaktligen har Jordbruksverket skrivit de delar i rapporten som rör struktur- och marknadspolitik, vattenbruk samt delar av datainsamling och av internationella organisationer (kapitel 6, 7 och 8 samt delar av kapitel 5 och 9). Sverige har under året fortsatt att driva frågan om ett hållbart fiske bl.a. genom att framhålla att den övergripande målsättningen är att förvaltningsåtgärder ska beslutas i linje med den reformerade gemensamma fiskeripolitikens mål och principer samt att den vetenskapliga rådgivningen ska utgöra grund för besluten. Även kommissionen har drivit en linje där biologisk rådgivning har varit ledord. Detta har tydliggjorts bl.a. i samband med de senaste årens förhandlingar om fiskemöjligheter där kommissionen, i tillämpliga fall förespråkat TAC-nivåer i linje med maximal hållbar avkastning (MSY). Det är emellertid värt att ha i beaktande att många bestånd saknar MSY-rådgivning varför avvägningar och värdering av vad som kan anses vara lämplig nivå för TAC:er, samt beaktande av

Nanostructured metals containing nano- and micro-cavities can be prepared by various methods. Morphology of cavities can be controlled by varying the parameters of preparation. This enables fabrication of nanostructured metals with properties tailored for particular applications, e.g. nanostructured metals containing fractal-like cavities with a wide size distribution are used as omnidirectional absorbers of light from the visible into the infrared spectral region. Positronium (Ps) is a non-destructive probe of nanoscopic cavities capable of precise determination of their size distribution. In conventional metals Ps does not form since any bound state of positron and electron is quickly destroyed by the screening of conduction electrons. However, a thermalized positron escaping from a metal through inner surface into a cavity may form Ps by picking an electron on the surface. This process was examined in the present work on nanostructured metals prepared three various methods: (i) thin films of black metals (Au and Al) evaporated in N2 atmosphere; (ii) nano-porous bulk Pd prepared by electrochemical etching of PdCo alloy; (iii) nanostructured Gd prepared by selective evaporation of Mg from MgGd alloy. Our investigations confirmed that Ps was formed in nanostructured metals. The the size distribution of nano-pores in the samples has been determined. The mechanism of Ps formation in these samples is discussed in the paper.

The effects of minor Cu (0–0.29 wt%) and Mg (0–0.1 wt%) additions on the microstructure, electrical conductivity, mechanical, and creep properties of 8xxx aluminum conductor alloys were studied. The microstructure evolution was investigated using an optical microscope and the electron backscattered diffraction technique. The creep property was characterized by the primary creep strain and the minimum creep rate during creep deformation. The results demonstrated that additions of minor Cu and Mg reasonably improved the ultimate tensile strength but slightly reduced electrical conductivity. The addition of Cu remarkably decreased the primary creep strain but had a negligible effect on the minimum creep rate, leading to a beneficial effect on the short-term creep resistance but no advantage to the creep resistance under the long-term creep process. The minor addition of Mg greatly reduces both the primary creep strain and minimum creep rate, resulting in a significant and effective improvement in the creep resistance.

Geopolymers are inorganic aluminosilicates mainly proposed as environmentally friendly building materials, which are obtained by alkali activation of natural minerals, calcined clay (e.g., metakaolin) and other aluminosilicate sources. The wide range of chemical and mineralogical compositions of these raw materials influences several properties of the obtained geopolymers. In the present work, pure Al2O3·2SiO2 powders were synthesized via the sol–gel technique and proposed as pure aluminosilicate sources to prepare alkali activated geopolymers. Samples differing in the ratio between the SiO2 precursor and the H2O used in the sol–gel process were prepared, in order to study the effect of water content on the material structure and reactivity. The chemical structure of all the obtained Al2O3·2SiO2 powders were characterized by Fourier transform infrared (FT-IR) and solid-state nuclear magnetic resonance (27Al and 29Si MAS NMR) spectroscopies and compared to that of a reference metakaolin. Moreover, material reactivity was evaluated by alkali activation of the samples. After 28 days of ageing, 27Al and 29Si MAS NMR and FT-IR spectra ascertained the formation of a geopolymeric network in the activated samples. The results showed that lower water content allows obtaining a homogeneous Al-rich geopolymer similar to that obtained, using metakaolin as raw material.

Al powder was stored in saturated water vapor, oxygen, nitrogen and drying air separately for a time period of up to six months, the degradation behavior of Al activity was characterized by the reaction of Al with water. It was found that water vapor decreased the induction time for the beginning of Al-water reaction and reduced the total hydrogen generation per unit weight of Al, while oxygen increased the induction time and retarded the Al-water reaction. In contrast, the effect of nitrogen and drying air on Al activity was weak. The mechanism analyses indicated that water vapor promoted the hydration of the Al surface passive oxide film and sped up the reaction of Al with water, while oxygen thickened the passive oxide film of the Al surface and prolonged its hydration process. These results imply that water vapor rather than oxygen is responsible for the degradation of Al activity during storage in the atmospheric environment.

We investigated the performance of the density functional theory (DFT) functionals PBE, PBE0, M06, and M06-L for describing the molecular and dissociative adsorption of O2 onto pure and doped Al(111) surfaces. Adsorption of O2 was studied at the perfect Al(111) surface and compared with the case where an additional Al atom was present as an adatom. Additionally, we studied how these functionals perform when different dopants are present at the Al(111) surface in two distinct geometries: as an adatom or as a substitutional atom replacing an Al atom. The performance of the different functionals is greatly affected by the surface geometry. The inclusion of Hartree-Fock exchange in the functional leads to slight differences in adsorption energies for molecular adsorption of O2. These differences become very pronounced for dissociative adsorption, with the hybrids PBE0 and M06 predicting more exergonic adsorption than PBE and M06-L. Furthermore, PBE0 and M06 predicted trends in adsorption energies for defective and perfect surfaces which are in line with the experimental knowledge of the effects of surface defects in adsorption energies. The predictions of the non-hybrids PBE and M06-L point in the opposite direction. The analysis of the contributions of the van der Waals (vdW) forces to the adsorption energies reveals that the PBE and PBE0 functionals have similar difficulties in describing vdW interactions for molecular adsorption of O2 while the M06 functional can give a description of these forces with an accuracy which is at least similar to that of the correction of the D3 type., QC 20160428

Samples with one through three passes with 100% overlap were created using friction stir processing (FSP) in order to locally modify the microstructure and mechanical properties of a cold-rolled Al-5083 alloy. A constant traverse speed and two different rotational speeds were used for processing. The results indicated that single-pass FSP caused dynamic recrystallization in the stir zone, leading to equiaxed grains with high angle grain boundaries. The grain size increased with increasing the rotational speed. The product of ultimate tensile strength and total elongation of the stir zone was significantly enhanced compared with that of the base metal. During the annealing heat treatment, abnormal grain growth (AGG) occurred throughout the stir zone when a low rotational speed was adopted. The stir zone produced with a high rotational speed was found to be more resistant to AGG. The application of multiple process passes did not change the grain size and mechanical properties of the stir zone significantly. The expanding of AGG in the stir zone was inhibited as the number of passes was increased.