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Stochastic aspects of transmitter release and bioenergetic dysfunction in isolated nerve terminals

Synaptosomes (isolated nerve terminals) have been studied for more than 40 years. The preparation allows aspects of transmitter metabolism and release to be studied ex vivo from specific brain regions of animals of any age. Conditions can be devised to enable the terminals to fire spontaneous action potentials, allowing the presynaptic control of glutamate exocytosis to be studied. Recent developm

Metabolic normality in overweight and obese subjects. Which parameters? Which risks?

Objectives: The objective of this study was to define metabolic normality and to investigate the cardiometabolic profile of metabolically normal obese. Design: Cross-sectional study conducted at 21 research centers in Europe. Subjects: Normal body weight (nbw, n = 382) and overweight or obese (ow/ob, n = 185) subjects free from metabolic syndrome and with normal glucose tolerance, were selected am

The Geography of Sustainability Transitions: Review, Synthesis and Reflections on an Emergent Research Field.

This review covers the recent literature on the geography of sustainability transitions and takes stock with achieved theoretical and empirical insights. The review synthesises and reflects upon insights of relevance for sustainability transitions following from analyses of the importance of place specificity and the geography of inter-organisational relations. It is found that these contributions

Altered CSF Orexin and α-Synuclein Levels in Dementia Patients.

Neurodegenerative dementia, most frequently represented by Alzheimer's disease (AD) and dementia with Lewy bodies (DLB), is often accompanied by altered sleeping patterns and excessive daytime sleepiness. Studies showing an association between the neuropeptide orexin and AD/DLB-related processes such as amyloid-β (Aβ)1-42 plaque formation, α-synuclein accumulation, and inflammation indicate that o

A Collective Theory of Happiness: Words Related to the Word Happiness in Swedish Online Newspapers

Background: A central theme in media psychology is how certain contemporary and dominant views may tend to perpetuate themselves by presenting a recurring picture we humans use to form our knowledge about the world. The present study is based on 1.5 million words from articles published online in the Swedish daily newspapers in 2010. We investigated which words were most (un-)common in articles co

Downregulation of Type II Diabetes Mellitus and Maturity Onset Diabetes of Young Pathways in Human Pancreatic Islets from Hyperglycemic Donors.

Although several molecular pathways have been linked to type 2 diabetes (T2D) pathogenesis, it is uncertain which pathway has the most implication on the disease. Changes in the expression of an entire pathway might be more important for disease pathogenesis than changes in the expression of individual genes. To identify the molecular alterations in T2D, DNA microarrays of human pancreatic islets

Reagent-Controlled Cyclization-Deprotection Reaction to Yield either Fluorenes or Benzochromenes

Compounds with benzochromene and fluorene structures are common in nature and society, and they can have potentially useful biological activities. In this paper, conditions for the selective preparation of either a benzochromene or a fluorene from the same starting material are described. The procedure uses a reagent-controlled cyclization-demethylation to give the benzochromene, or an intramolecu

Photovoltaics with piezoelectric core-shell nanowires

We report on the discovery of a generic piezoelectric field in strained core-shell compound semiconductor nanowires. We present the lattice-mismatch induced strain in epitaxial core-shell nanowires and show that it gives, very generally, rise to an internal piezoelectric field along the axis of the nanowire. This field results predominantly from atomic displacements in polar bonds and microscopic

Usefulness of Vernakalant Hydrochloride Injection for Rapid Conversion of Atrial Fibrillation

The objective of the present study was to assess the safety and effectiveness of vernakalant hydrochloride injection (RSD1235), a novel antiarrhythmic drug, for the conversion of atrial fibrillation (AF) or atrial flutter to sinus rhythm (SR) Patients with either AF or atrial flutter were randomized in a 11 ratio to receive vernakalant (n = 138) or placebo (n = 138) and were stratified by an arrhy

Involvement of mitochondria in the control of plant cell NAD(P)H reduction levels.

NADPH and NADH mediate reductant flow between cellular processes, linking central carbon and energy metabolism with intermediary metabolism, stress defence and development. Recent investigations have revealed paths of functional interactions, and have suggested that mitochondrial NADPH oxidation, especially together with the oxidative pentose phosphate pathway, is an important regulator of the cyt

Landscapes of musical metaphor and musical learning: The example of jazz education

Theoretical approaches to learning in practice-based jazz improvisation contexts include situated learning and ecological perspectives. This article focuses on how interest-driven, self-sustaining jazz learning activities can be matched against the results of a recent Swedish investigation based on extensive qualitative interviews with jazz musicians regarding their views on the metaphor ‘storytel

Targeting CD38 with Daratumumab Monotherapy in Multiple Myeloma.

Background Multiple myeloma cells uniformly overexpress CD38. We studied daratumumab, a CD38-targeting, human IgG1κ monoclonal antibody, in a phase 1-2 trial involving patients with relapsed myeloma or relapsed myeloma that was refractory to two or more prior lines of therapy. Methods In part 1, the dose-escalation phase, we administered daratumumab at doses of 0.005 to 24 mg per kilogram of body

Density Forecasting with Time Varying Higher Moments – A Model Confidence Set Approach

Density forecasts contain a complete description of the uncertainty associated with a point forecast and are therefore important measures of financial risk. This paper aims to examine if the new more complicated models for financial returns that allow for time variation in higher moments lead to better out-of-sample density forecasts. Using two decades of daily Standard and Poor's 500 index return

Antidepressant therapy in severe depression may have different effects on ego-dystonic and ego-syntonic suicidal ideation.

The objective of the present study was to investigate whether ego-dystonic and ego-syntonic suicidal ideation occurred at different frequencies during antidepressant therapy. A blind evaluation has been performed on records of 100 suicides with a primary severe depression and 100 matched controls, admitted to the Department of Psychiatry, Lund, Sweden. Ego-dystonic suicidal ideation was more commo

Bandgap formation in graphene on Ir(111) through oxidation

A graphene monolayer on single crystal Ir(111) has been studied using angle-resolved photoemission spectroscopy (ARPES) before and after exposure to atomic oxygen. With increasing oxygen coverage the Dirac cone, centered on the K-point of the Brillouin zone, broadens and finally transforms to a parabolic rather than linear feature, introducing a pronounced energy bandgap at the Fermi level. The op

A new early Paleocene dinoflagellate cyst species, Trithyrodinium partridgei: its biostratigraphic significance and palaeoecology

A palynological investigation of lower Paleocene (lower Teurian) marine sediments of the Abbotsford Formation, exposed in the Fairfield Quarry, Dunedin, New Zealand, reveals a well-preserved association of dinoflagellate cysts and miospores. Thirty-six dinoflagellate species representing 26 genera were recorded, including one new peridinioid dinoflagellate species, Trithyrodinium partridgei charac

Differential Expression Patterns of Non-symbiotic Hemoglobins in Sugar beet (Beta vulgaris ssp. vulgaris).

Biennial sugar beet (Beta vulgaris spp. vulgaris) is a Caryophyllidae that has adapted its growth cycle to the seasonal temperature and day length variation of temperate regions. This is the first time a holistic study of the expression pattern of non-symbiotic hemoglobins (nsHbs) is being carried out in a member of this group and under two essential environmental conditions for flowering, namely

Self-fertilization and inbreeding limit the scope for sexually antagonistic polymorphism

Sexual antagonism occurs when there is a positive intersexual genetic correlation in trait expression but opposite fitness effects of the trait(s) in males and females. As such, it constrains the evolution of sexual dimorphism and may therefore have implications for adaptive evolution. There is currently considerable evidence for the existence of sexually antagonistic genetic variation in laborato