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Interligand electron transfer determines triplet excited state electron injection in RuN3-sensitized TiO2 films

Electron injection from the transition metal complex Ru(dcbpy)(2)(NCS)(2) (dcbpy = 2,2'-bipyridine-4,4'-dicarboxylate) into a titanium dioxide nanoparticle film occurs along two pathways. The dominating part of the electron injection proceeds from the initially excited singlet state of the sensitizer into the conduction band of the semiconductor on the sub-hundred-femtosecond time scale. The slowe

Cord blood islet autoantibodies are related to stress in the mother during pregnancy.

A 2-month psychological questionnaire concerning pregnancy was answered by 20,920 nondiabetic mothers of singletons. Retrospective analysis showed increased levels of islet autoantibodies (1A) in 290 (1.4%) newborns. High IA levels in the child's cord blood correlated strongly with IA levels in the mother (GADA r = 0.91, P < 0.0001; IA-2A r = 0.75, P = 0.0001). High IA levels were found in newborn

Kinetics of the reduction of the Rh(111) surface oxide: Linking spectroscopy and atomic-scale information

The reduction of the surface oxide on Rh(111) by H-2 was observed in situ by scanning tunneling microscopy (STM) and high-resolution core level spectroscopy (HRCLS). At room temperature, H-2 does not adsorb on the oxide, only in reduced areas. Reduction starts in very few sites, almost exclusively in stepped areas. One can also initiate the reduction process by deliberately creating defects with t

Police Persuasion: Making Battered Women File a Complaint

A common theme in sociological literature on "domestic violence" is that police officers view such cases as private problems and not as objects for proper policework. Thus, it is argued that police officers interactionally discourage arrest in domestic disturbance cases. In an etnographic study of Swedish police officers, however, police officers, instead of discouraging arrest or filing of compl

Social Media and Collective Remembrance: The debate over China’s Great Famine on weibo

This paper provides one of the first studies on the role of social media in articulating individuals’ experiences and memories and (re-)shaping collective memory in contemporary China. It investigates how social media enable and facilitate the participation of ordinary citizens in distributing and accumulating alternative narratives and memories of the past against the authoritarian version by tak

Penguins 2002: penguins in K→ππ decays

This talk contains a short overview of the history of the interplay of the weak and the strong interaction and CP-violation. It describes the phenomenology and the basic physics mechanisms involved in the standard model calculations of K→ππ decays with an emphasis on the evaluation of penguin operator matrix-elements

Comparative Study of Immune Status to Infectious Agents in Elderly Patients with Multiple Myeloma, Waldenstrom's Macroglobulinemia, and Monoclonal Gammopathy of Undetermined Significance

Whereas patients with multiple myeloma (MM) have a well-documented susceptibility to infections, this has been less studied in other B-cell disorders, such as Waldenstrom's macroglobulinemia (WM) and monoclonal gammopathy of undetermined significance (MGUS). We investigated the humoral immunity to 24 different pathogens in elderly patients with MM (n = 25), WM (n = 16), and MGUS (n = 18) and in ag

A distinct Toll-like receptor repertoire in human tonsillar B cells, directly activated by PamCSK, R-837 and CpG-2006 stimulation.

Toll-like receptors (TLRs) recognize specific pathogen-associated molecular patterns (PAMPs), which subsequently trigger innate immunity. Recent data also suggest a role for TLRs in the direct activation of adaptive immune cells. In the present study, the expression and function of TLR1-TLR10 were characterized in purified human tonsillar B cells, focusing on differences among CD19(+) CD38(-) CD27

Epitope mapping of anti-glomerular basement membrane (GBM) antibodies with synthetic peptides

Autoantibodies to the non-collagenous (NC1) domain of the alpha 3(IV)-chain of type IV collagen are found in sera from patients with anti-GBM nephritis. These antibodies have been shown to be pathogenic. In this study the antibody specificity has been investigated in patients with Goodpasture's syndrome and from a patient with atypical anti-GBM antibodies, recognizing the alpha 1(IV)-chain only. O

Induction of donor-specific tolerance to islet allografts in nonhuman primates.

Pancreatic tissue grafting is by far the most physiological therapeutic solution to the insulin deficiency of diabetes. Recent clinical trials have indicated somewhat successful use of nonsteroidal immunosuppressive regimens and a successful nonhuman primate trial using CD154 for costimulation blockade was reported. However, these protocols need to be replaced with safe and efficacious ones in whi

Geminate charge recombination in alternating polyfluorene Copolymer/Fullerene blends

By measuring excited state and charge dynamics in blends of an alternating polyfluorene copolymer and fullerene derivative over nine orders in time and two orders in light intensity, we have monitored the light-induced processes from ultrafast charge photogeneration to much slower decay of charges by recombination. We find that at low light intensities relevant to solar cell operation relatively f

Managing Hope and Spiritual Distress : The Centrality of the Doctor-Patient Relationship in Combatting Stem Cell Travel

Stem Cell travel refers to patients with a variety of diseases and debilitating disorders who travel abroad to receive unproven stem cell treatments. Current academic research investigating how to combat stem cell travel has yet to offer a complete understanding of the link between patient hope and autonomy, and building or losing trust in medical authorities. To combat stem cell travel, understan

Sweden : A Pioneer of Acidification Abatement

In Sweden, the combination of the country’s natural ecological vulnerability to acidification and its geographical location has been domestic focal points for the treatment of the ‘acid rain’ issue. Political interest in the acidification issue in Sweden emerged in the late 1960s, when the problems of long-range transport of sulphuric compounds and their harmful environmental effects were first hi

Evaluation of high temperature membrane electrode assemblies based on sulfonated polysulfones

In the development and evaluation of alternative ionomers, the membrane development and ex situ characterization have been the focus of interest. The properties of a MEA are dependent on the composition of materials in the components, i.e. membrane, electrodes and gas diffusion layers, and the interaction between these parts. The complexity of water transport in different components is one example