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Low dietary protein content alleviates motor symptoms in mice with mutant dynactin/dynein-mediated neurodegeneration.

Mutations in components of the molecular motor dynein/dynactin lead to neurodegenerative diseases of the motor system or atypical parkinsonism. These mutations are associated with prominent accumulation of vesicles involved in autophagy and lysosomal pathways, and with protein inclusions. Whether alleviating these defects would affect motor symptoms remain unknown. Here, we show that a mouse model

Hidden order in spin-liquid Gd₃Ga₅O₁₂.

Frustrated magnetic materials are promising candidates for new states of matter because lattice geometry suppresses conventional magnetic dipole order, potentially allowing "hidden" order to emerge in its place. A model of a hidden-order state at the atomic scale is difficult to deduce because microscopic probes are not directly sensitive to hidden order. Here, we develop such a model of the spin-

Relationship between matrix production by bronchial fibroblasts and lung function and AHR in asthma.

The reasons for enhanced deposition of extracellular matrix in the airways of asthmatic patients and the subsequent consequences on lung function are uncertain. Here, we investigated the synthesis of procollagen I and proteoglycans, the activity of various metalloproteinases (MMPs) and the production of their inhibitor TIMP-1 in biopsy-derived bronchial fibroblasts from eight patients with stable

Human antibody technology and the development of antibodies against cytomegalovirus.

Cytomegalovirus (CMV) is a virus that causes chronic infections in a large set of the population. It may cause severe disease in immunocompromised individuals, is linked to immunosenescence and implied to play an important role in the pathogenesis of cardiovascular diseases and cancer. Modulation of the immune system's abilities to manage the virus represent a highly viable therapeutic option and

Caesarean section per se does not increase the risk of offspring developing type 1 diabetes: a Swedish population-based study

Aims/hypothesis Some studies have revealed a relationship between Caesarean section (CS) and type 1 diabetes, while other studies have not. By using the Swedish paediatric quality register we investigated whether birth by CS is related to the risk of developing type 1 diabetes during childhood. Methods All children diagnosed with type 1 diabetes from 2000 to 2012 and included in the register (n= 9

The Transition From Rookie to Genuine Nurse: Narratives From Swedish Nurses 1 Year After Graduation

This article describes nurses' experiences during their first year after graduation, based on the qualitative content analysis of eight interviews. The results show that the nurses experienced a transition from "being a rookie," including being accepted as a member of the team and respected as a colleague, to "becoming a genuine nurse," including the feeling of being able to shoulder responsibilit

Angular asymmetry and attosecond time delay from the giant plasmon resonance in C-60 photoionization

This combined experimental and theoretical study demonstrates that the surface plasmon resonance in C-60 alters the valence photoemission quantum phase, resulting in strong effects in the photoelectron angular distribution and emission time delay. Electron momentum imaging spectroscopy is used to measure the photoelectron angular distribution asymmetry parameter that agrees well with our calculati

Measurement of charm production at central rapidity in proton-proton collisions at root s=7 TeV

The p(t)-differential inclusive production cross sections of the prompt charmed mesons D-0, D+, and D*(+) in the rapidity range vertical bar y vertical bar < 0.5 were measured in proton-proton collisions at root s = 7 TeV at the LHC using the ALICE detector. Reconstructing the decays D-0 -> K-pi(+), D+ -> K-pi(+)pi(+), D*(+) -> D-0 pi(+), and their charge conjugates, about 8,400 D-0, 2,900 D+, and

Cross-scale management strategies for optimal control of tree invading from source plantations

Biological invasion by non-native tree species can transform landscapes, and as a consequence, has received growing attention from researchers and managers alike. This problem is driven primarily by the naturalisation and invasion of tree species escaping from cultivation or forestry plantations. Furthermore, these invasions can be strongly influenced by the land-use matrix of the surrounding regi

Nocturnal body temperature in wintering blue tits is affected by roost-site temperature and body reserves.

Birds commonly use rest-phase hypothermia, a controlled reduction of body temperature (T (b)), to conserve energy during times of high metabolic demands. We assessed the flexibility of this heterothermic strategy by increasing roost-site temperature and recording the subsequent T (b) changes in wintering blue tits (Cyanistes caeruleus L.), assuming that blue tits would respond to treatment by incr

What matters for growth in Europe? Institutions versus policies, quality versus instability

We study how the quality and instability of institutions and policies affect economic growth in 35 European countries. While stability entails valuable predictability, instability can reflect reforms that offer positive long-run consequences. We construct measures of quality and instability for a panel of countries for 1984-2009. Results suggest that the quality of policy is growth-promoting. Nota

Motives for becoming a teacher and their relations to academic engagement and dropout among student teachers

Difficulties in attracting student teachers have resulted in research focusing on student teachers' motives for studying to join the profession. Because previous findings are mixed, the first aim of this study was to explore motives for students to become teachers. A second aim was to explore the relationship between teachers' motives and their academic engagement and dropout rates at the end of t

Endemism på Teneriffa

Den makaronesiska övärlden i likhet med de flesta andra ögrupper av vulkaniskt ursprung präglas ofta av en stor biologisk mångfald. En stor mångfald av arter inom många släkten och närvaro av närbesläktade arter i närliggande miljöer tyder på en utveckling av arter genom adaptiv radering. Endemismen är alltid procentuellt hög i dessa övärldar. Vill man uppleva unika endemer inom flora och även fau

Thymidine kinase 1 regulatory fine-tuning through tetramer formation.

Thymidine kinase 1 (TK1) provides a crucial precursor, thymidine monophosphate (dTMP), for nucleic acid synthesis, and the activity of TK1 increases up to 200-fold during the S-phase of cell division in humans. An important part of the regulatory check-points is the ATP and enzyme concentration-dependent transition of TK1 from a dimer with low catalytic efficiency to a tetramer with high catalytic

Etching of graphene on Ir(111) with molecular oxygen

The mechanisms for oxygen etching of graphene on Ir(111) are uncovered through a systematic variation of the graphene morphology - ranging from an impermeable graphene layer to graphene nanoflakes - and the application of complementary experimental methods, including scanning tunneling microscopy, X-ray photoelectron spectroscopy, and temperature programmed desorption. Associated with a strong var

Reactivity of Fe from a natural stream water towards As(V)

Interactions between iron (Fe) and arsenic (As) play a vital role in aquatic and terrestrial ecosystems influencing the reactivity and transport of arsenic. A key aspect is the effect of natural organic matter (NOM) on these interactions, and previous investigations have reported the existence of ternary As-Fe-NOM species. In this study, the reactivity of Fe, from a boreal stream water, towards As

Extraction of polar lipids from bifidobacteria by supercritical carbon dioxide (scCO(2))

This study describes an efficient isolation procedure for the extraction of polar lipids from two strains of bifidobacteria - Bifidobacterium longum and Bifidobacterium angulatum. We first compared the lipid profiles of two strains of bifidobacteria and showed that the strains of the same genus may differ by lipid composition of cell walls. The polar lipids were isolated using the following condit

Influence of the polymer backbone structure on the properties of aromatic ionomers with pendant sulfobenzoyl side chains for use as proton-exchange membranes

Six different ionomers having various aromatic polymer backbones with pendant 2-sulfobenzoyl side chains were prepared by nucleophilic aromatic substitution reactions of lithium 2,6-difluoro-2′-sulfobenzophenone with 4,4-biphenol, 2,7-dihydroxynaphthalene, 4,4-isopropylidenediphenol, 4,4-dihydroxydiphenyl ether, 4,4′-thiodiphenol, and 4,4′-thiobisbenzenethiol, respectively, to produce four poly(ar