Sökresultat

Filtyp

Din sökning på "*" gav 537333 sökträffar

The influence of the local structure of Fe(III) on the photocatalytic activity of doped TiO2 photocatalysts-An EXAFS, XPS and Mossbauer spectroscopic study

Fe(III)-doped TiO2 based heterogeneous photocatalysts were prepared by the sol-gel technique (S samples) or flame hydrolysis (F samples). In photocatalytic phenol decomposition, the undoped F-sample performed much better, than the undoped S one. However, for the S samples, photocatalytic activity first increased with the increasing Fe(III) concentration, and then passed through a maximum, while Fe

Metal-like heat conduction in laser-excited InSb probed by picosecond time-resolved x-ray diffraction

A semiconductor (InSb) showed transient metal- like heat conduction after excitation of a dense electron- hole plasma via short and intense light pulses. A related ultrafast strain relaxation was detected using picosecond time-resolved x-ray diffraction. The deduced heat conduction was, by a factor of 30, larger than the lattice contribution. The anomalously high heat conduction can be explained o

Experimental Colonic Obstruction and Anastomotic Healing

Colorectal cancer is one of the most common malignant diseases world-wide. Most patients can be diagnosed, staged and treated by surgery in an elective setting. However, about one fifth of the patients will have an emergency presentation and in most cases due to malignant obstruction of the left colon. Immediate resection and anastomosis is feasible but carries a 3-fold higher risk of developing a

On the Convergence of Higher Order Hedging Schemes: The Delta-Gamma Case

Hedging errors induced by discrete rebalancing of the hedge portfolio of a delta-gamma hedging strategy are investigated. The rate of convergence of the expected squared hedging error as the number of adjustments of the hedge portfolio goes to infinity is analyzed. It is found that the delta-gamma strategy produces higher convergence rates than the usual delta strategy.

Fyrtiotalisterna och äldreomsorgen - massmediala konstruktioner av en ny sorts omsorgstagare

Baby boomers and elderly care: expectations in print media about a new kind of care users The Swedish baby boomer generation known as the forties generation has been characterized as youthful and powerful. At present, members of this generation are entering the category of old age and in about ten years they will start reaching ages where the likelihood of encountering elderly care increases signi

Västlig kolvlav Pilophorus strumaticus återfunnen i Sverige

Det mest spännande fyndet under SLF:s höstexkursion till Skäckerfjällen i Jämtland var utan tvekan västlig kolvlav Pilophorus strumaticus. Efter det mycket överraskande första fyndet lyckades vi hitta arten på ytterligare tre lokaler. Då handlar om en art som anses nationellt utdöd fann vi det värt att skriva en separat artikel om arten.

Den hälsofrämjande promenaden. Äldre människors promenerande som nytta, nöje och norm.

From a medical point of view, walking is an activity that is becoming more and more associated with health promotion. Especially older people are encouraged to take walks, since ageing is considered to increase the risk of ill-health.The aim of this article is to discuss how older people reason about health and walking, and their use of talking walks. The article shows that the interviewees are aw

An effect of side chain length on the solution structure of poly(9,9-dialkylfluorene)s in toluene

The effect of side chain length of pi-conjugated poly(9,9-dialkylfluorene)s has been studied in semi-dilute (10 mg/mL) toluene solutions using small-angle neutron scattering (SANS) and H-1 and H-2 NMR spectroscopies. Under these conditions, SANS data indicate that poly(9,9-dinonylfluorene) and poly(9,9-dioctylfluorene) are dissolved down to the molecule level and appear as elongated one-dimensiona

Low rate of lymphedema after extended pelvic lymphadenectomy followed by pelvic irradiation of node-positive prostate cancer

Background: The aim of the present study was to evaluate the prevalence and severity of lower limb lymphedema after pelvic lymphadenectomy and radiotherapy to the pelvic lymph nodes in patients with prostate cancer. Methods: Twenty-six patients underwent combined treatment for high-risk node-positive prostate cancer at Skane University Hospital between April 2008 and March 2011. The treatment cons

Individual and collective responses to large carnivore management: the roles of trust, representation, knowledge spheres, communication and leadership.

Overseeing the continued recovery, dispersal and management of large carnivore populations while simultaneously considering human viability and welfare requires delicately balancing local concerns for rural communities’ livelihood prospects and property vulnerability with international concerns for saving threatened species. In this article, we propose an integrated analytical perspective to eluci

EU-wide maps of growing stock and above-ground biomass in forests based on remote sensing and field measurements

The overall objective of this study was to combine national forest inventory data and remotely sensed data to produce pan-European maps on growing stock and above-ground woody biomass for the two species groups " broadleaves" and " conifers" An automatic up-scaling approach making use of satellite remote sensing data and field measurement data was applied for EU-wide mapping of growing stock and a

Multiplicity dependence of jet-like two-particle correlation structures in p-Pb collisions at root s(NN)=5.02 TeV

Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The transverse-momentum range 0.7 < p(T),(assoc) < p(T),(trig) < 5.0 GeV/c is examined, to include correlations induced by jets originating from low momentum-transfer scatterings (minijets). The

No title

Abstract in Spanish Este artículo, el primero en un proyecto de investigación recién iniciado sobre el uso de tabaco en la literatura latinoamericana, tiene dos partes. En la primera se discute el papel del cigarrillo en la producción cultural, y se afirma que el cigarrillo es algo como un significante vacío que tiene que llenarse con historias – desde ese sentido, un producto ideal para la public

High-spin Isomers in 96Ag: Excitations Across the Z=38 and Z=50, N=50 Closed Shells

Excited states in Ag-96 were populated in fragmentation of an 850-MeV/u Xe-124 beam on a 4-g/cm(2) Be target. Three new high-spin isomers were identified and the structure of the populated states was investigated. The level scheme of Ag-96 was established, and a spin parity of (13(-)), (15(+)), and (19(+)) was assigned to the new isomeric states. Shell-model calculations were performed in various

Peg-IFN and ribavirin treatment for recurrence of genotype 2 and 3 hepatitis C after liver transplantation

Background: Relapse of hepatitis C virus (HCV) infection after liver transplantation (LT) is universal. Tolerance for treatment with pegylated-interferon (peg-IFN) and ribavirin (RBV) is suboptimal and withdrawals due to adverse events frequent. We sought to improve tolerance for treatment to improve outcome. Methods: We used concentration-guided RBV dosing to achieve an intended 10 mu mol/L conce

High maternal body mass index increases the risk of neonatal early onset group B streptococcal disease

Objective: The aim of this study was to analyse the occurrence of neonatal early onset group B streptococcal (EOGBS) disease relative to maternal body mass index (BMI). Method: A cohort of Swedish parturients with an early pregnancy BMI registered was investigated. Data were retrieved from population-based registers during 1997-2001, (n = 344 127, elective caesarean section excluded). Medical reco

Inflammation, Plaque Vulnerability and Cardiovascular Risk

Acute cardiovascular events, most commonly caused by rupture of an atherosclerotic plaque, lie behind one third of all deaths worldwide. Atherosclerosis is an inflammatory disease of large and medium sized arteries driven by retention of lipid in the arterial wall. Inflammatory activity in the plaque is believed to be an important driving force behind plaque progression and rupture. However it is