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Near vacuum ultraviolet luminescence of Gd3+ and Er3+ ions generated by super saturation upconversion processes

Near vacuum ultraviolet (UV) upconversion (UC) emissions with a spectral resolution of 1 nm, from the (6)G(J), D-6(J), I-6(J), P-6(J) levels of Gd3+ and the L-2(17/2), D-4(7/2), H-2(2)(9/2), D-2(5/2), (4)G(7/2), K-2(13/2), P-2(3/2) levels of Er3+, were observed under 974 nm laser excitation. Mechanism analyses illustrate that successive energy transfers (ETs) from Yb3+ to Er3+ generate UV UC radia

Molecular studies on streptococcal surface proteins

Streptococcus agalactiae and Streptococcus pyogenes are two related human pathogens causing different diseases. This thesis focuses on a number of surface proteins expressed by S. agalactiae and S. pyogenes and, more specifically, the molecular and biological characterization of these proteins. The first paper describes the novel Blr protein of S. agalactiae, which together with the previously des

Analyzing the Relationship between Objective-Subjective Health Status and Public Perception of Climate Change as a Human Health Risk in Coastal Tanzania

Climate change is considered as the biggest threat to human health in the 21st century. Sub-Saharan Africa, which is the most-at-risk region of the world, is estimated to have a disproportionately large share of the burden of climate change-induced environmental and human health risks. To develop effective adaptations to protect public health, it is essential to consider how individuals perceive a

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Abstract in Spanish Los rituales indígenas acompañaron a Evo Morales a través de sus primeros años como presidente de Bolivia. El oficio y las prácticas rituales del curandero y sabio aymara, el yatiri, están pasando por interesantes transformaciones, entrando a espacios políticos donde no solían estar presentes. ¿Pero cuál es realmente el papel que juegan el conocimiento terapéutico y la prácticaIndigenous rituals escorted Evo Morales throughout his first years as president of Bolivia. The art and the ritual practices of the yatiri, the Aymara healer and ritual specialist, are going through interesting transformations entering new political spaces of power. But which role does this therapeutic knowledge and ritual practice actually play in the present political process and how should this

Teaching History, Learning Piety : an Alevi Foundation in Contemporary Turkey

Abstract in UndeterminedIn Turkey, a considerable number of Alevi foundations and associations work intensively with promoting Alevi visibility and rights in Turkish society. Locally, they offer educational activities where Alevis can learn, practice and reflect on their religion and culture. Based on fieldwork in one Alevi foundation in present day Istanbul, this book explores ways in which knowl

The landlord lag – productivity on peasant farms and landlord demesnes during the agricultural revolution in Sweden 1700–1860

In a longstanding debate among economic historians about the role of the peasants and the manors in the agrarian transformation, a variety of qualitative and quantitative indicators have been used, but no one has until now been able to compare the actual production outcomes. In this paper, we investigate the land productivity development for manorial demesnes and peasant farmers, respectively, ove

A1M Ameliorates Preeclampsia-Like Symptoms in Placenta and Kidney Induced by Cell-Free Fetal Hemoglobin in Rabbit.

Preeclampsia is one of the most serious pregnancy-related diseases and clinically manifests as hypertension and proteinuria after 20 gestational weeks. The worldwide prevalence is 3-8% of pregnancies, making it the most common cause of maternal and fetal morbidity and mortality. Preeclampsia lacks an effective therapy, and the only "cure" is delivery. We have previously shown that increased synthe

Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at root s(NN)=2.76 TeV

Transverse momentum spectra of pi(+/-), K-+/- and p((p) over bar) up to p(T) = 20 GeV/c at mid-rapidity in pp, peripheral (60-80%) and central (0-5%) Pb-Pb collisions at v root s(NN) = 2.76 TeV have been measured using the ALICE detector at the Large Hadron Collider. The proton-to-pion and the kaon-to-pionratios both show a distinct peak at p(T) approximate to 3 GeV/c in central Pb-Pb collisions.

Concepts and problems in protein dynamics

The function of proteins depends crucially on conformational motions. The characteristic times of these motions extend from sub-picosecond to seconds. No single experimental tool can cover the entire time range and provide all necessary parameters for a complete understanding. Moreover, without a solid understanding of the data evaluation it is easy to misinterpret the complex phenomena. Because p

Photon reconstruction in the ATLAS Inner Detector and Liquid Argon Barrel Calorimeter at the 2004 Combined Test Beam

The reconstruction of photons in the ATLAS detector is studied with data taken during the 2004 Combined Test Beam, where a full slice of the ATLAS detector was exposed to beams of particles of known energy at the CERN SPS. The results presented show significant differences in the longitudinal development of the electromagnetic shower between converted and unconverted photons as well as in the tota

RF Spatial Modulation Using Antenna Arrays

A new method of spatial linear modulation is presented for the RF signal modulation. The constant envelope and phase modulated signals are transmitted to an antenna array and then combined in space; the linear modulation is realized at the same time. The concentric antenna pairs are applied to eliminate the mismatch of phase delay among the modulated signals from different antenna pairs. The measu

Sparse Estimation Of Spectroscopic Signals

This work considers the semi-parametric estimation of sparse spec- troscopic signals, aiming to form a detailed spectral representation of both the frequency content and the spectral line widths of the oc- curring signals. Extending on the recent FOCUSS-based SLIM al- gorithm, we propose an alternative prior for a Bayesian formulation of this sparse reconstruction method, exploiting a proposed sui

Siglec-5 and Siglec-14 are polymorphic paired receptors that modulate neutrophil and amnion signaling responses to group B Streptococcus

Group B Streptococcus (GBS) causes invasive infections in human newborns. We recently showed that the GBS beta-protein attenuates innate immune responses by binding to sialic acid-binding immunoglobulin-like lectin 5 (Siglec-5), an inhibitory receptor on phagocytes. Interestingly, neutrophils and monocytes also express Siglec-14, which has a ligand-binding domain almost identical to Siglec-5 but s

Aromatic polysulfone copolymers for gas separation membrane applications

New polysulfone (PSF) copolymers from bis(4-fluorophenyl)sulfone and based on equimolar mixtures of the rigid/compact naphthalene moiety with bulky connectors from bisphenols: tetramethyl, hexafluoro, and tetramethyl hexafluoro, respectively, were synthesized to measure significant physical properties related to the gas separation field. The flexible and transparent polymer dense films TM-NPSF, HF

Factors of vulnerability: How large-scale land acquisitions take advantage of local and national weaknesses in Sierra Leone

Enticing economic benefits for host nations and the notion of large areas of land considered available are often put forward as the main reasons for large-scale land acquisition in many areas of sub-Saharan Africa. However, country-level datasets of land acquisitions seem to indicate a clear divide between a majority of countries engaged in land acquisitions as investors and those involved as targ