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How Do Teachers With Self-Reported Voice Problems Differ From Their Peers With Self-Reported Voice Health?

OBJECTIVES: This randomized case-control study compares teachers with self-reported voice problems to age-, gender-, and school-matched colleagues with self-reported voice health. The self-assessed voice function is related to factors known to influence the voice: laryngeal findings, voice quality, personality, psychosocial and coping aspects, searching for causative factors of voice problems in t

Radioactivity exploration from the Arctic to the Antarctic. Part 4: The Arctic Ocean-91 expedition

The Arctic Ocean expedition in 1991 with the Swedish icebreaker M/S Oden was focused on oceanography and geology. The aim of our project was exploring the activity concentrations in surface air of 7Be, 210Pb. and 210Po in the surface air, radioactive isotopes of Caesium (134Cs, 137Cs) and plutonium (239+240Pu) in seawater. During the cruise in the Arctic Ocean during 1991-07-28 to 1991-10-04 the a

Audio spectrum analysis of umbilical artery Doppler ultrasound signals

The aim of this thesis was to develop an objective method for evaluation of umbilical artery circulation based on auditory perception of the Doppler sound signals. Study I. The operator listened to synthetically produced sound signals from continuous flow. The human ear was most sensitive to sound frequencies in the lower range from this type of flow. Study II. Doppler signals were recorded from t

A novel combined thermometric and amperometric biosensor for lactose determination based on immobilised cellobiose dehydrogenase.

A novel method for lactose determination in milk is proposed. It is based on oxidation of lactose by cellobiose dehydrogenase (CDH) from the basidiomycete Phanerochaete chrysosporium, immobilised in an enzyme reactor. The reactor was prepared by cross-linking CDH onto aminopropyl-silanised controlled pore glass (CPG) beads using glutaraldehyde. The combined biosensor worked in flow injection analy

rac-4,8-Divinylbicyclo[3.3.1]nonane-2,6-dione

The title compound, C13H16O2, is a chiral bicyclic structure composed of two fused cyclohexane rings possessing both boat and chair conformations. The molecules are packed in enantiopure columns which are pairwise linked forming an overall racemic solid; within the column pairs the packing is governed by weak dipole-dipole interactions stemming from stacked carbonyl functionalities (COcentroid-COc

Sustainability of urban water system: examples from Fukuoka, Japan

Urban water management policy in Japan, with examples from Fukuoka city, is described and the potential for sustainability of Fukuoka's urban water system is discussed. A framework of the qualitative characteristics of a sustainable system (including social, environmental and economic factors) is developed and used in the analyses presented here. The Fukuoka example shows that technically advanced

A method based on isothermal calorimetry to quantify the influence of moisture on the hydration rate of young cement pastes

Cement hydration needs water to proceed and if water is lost by drying, the hydration rate will decrease This can be of importance in cases when concrete surfaces are exposed to drying so that their strength development will be retarded We describe a method based on isothermal calorimetry to assess how the rate of cement hydration is influenced by removal of water (drying) at different times up to

How insect flight steering muscles work.

Insights into how exactly a fly powers and controls flight have been hindered by the need to unpick the dynamic complexity of the muscles involved. The wingbeats of insects are driven by two antagonistic groups of power muscles and the force is funneled to the wing via a very complex hinge mechanism. The hinge consists of several hardened and articulated cuticle elements called sclerites. This art

Subspaces of C-infinity invariant under the differentiation

Let L be a proper differentiation invariant subspace of C-infinity (a, b) such that the restriction operator d/dx vertical bar L has a discrete spectrum Lambda (counting with multiplicities). We prove that L is spanned by functions vanishing outside some closed interval I subset of (a, b) and monomial exponentials x(k)e(lambda x) corresponding to Lambda if its density is strictly less than the cri

Prognosis and response to first-line single and combination therapy in pulmonary arterial hypertension

Objectives. To investigate survival, treatment escalation, effects of first-line single- and first-line combination therapy and prognostic markers in idiopathic- (IPAH), hereditary- (HPAH) and connective tissue disease-associated (CTD-PAH) pulmonary arterial hypertension (PAH). Design. Retrospective analysis of medical journals from PAH patients at Skane University Hospital 2000-2011. Results. 1-,

Du och jag men inte vi : om omöjliga möten och deras orsaker i J. M. Coetzees fiktion

Popular Abstract in Swedish Den sydafrikanske författaren J. M. Coetzee, nobelpristagare 2003, är en komplex författare som räknas till en av samtidens största. Han har en unik politisk hållning i sina romaner och vägrar konsekvent att ge några enkla lösningar, istället drar han in läsaren och tvingar henne att bli delaktig i verkens problematik. I denna studie, den första avhandlingen på svenska This dissertation is a study of In the Heart of the Country (1977), Waiting for the Barbarians (1980), Age of Iron (1990), Disgrace (1999), Diary of a Bad Year (2007), and Summertime (2009) written by J. M. Coetzee. The aim of the dissertation is to analyze these works of fiction using four postcolonial aspects that function as consistent themes in the novels. The aspects are; the relationship bet

Solving Quadratically Constrained Geometrical Problems using Lagrangian Duality

In this paper we consider the problem of solving different pose and registration problems under rotational constraints. Traditionally, methods such as the iterative closest point algorithm have been used to solve these problems. They may however get stuck in local minima due to the non-convexity of the problem. In recent years methods for finding the global optimum, based on Branch and Bound and c

Trade and aid? The negotiated construction of European Union policy on economic partnership agreements.

Efforts by the European Commission and by leading member states, to normatively frame the debate about trade - and thus rhetorically entrap other actors by references to previous commitments - are ubiquitous; and member states do take account of the potential effects of their actions, in terms of potential praise or shaming, and adapt their behaviour to the institutional setting. However, this hol

Development and validation of GFR-estimating equations using diabetes, transplant and weight

Methods. Linear regression was used to relate log-measured GFR (mGFR) to sex, race, diabetes, transplant, weight, various transformations of creatinine and age with and without interactions. Equations were developed in a pooled database of 10 studies [2/3 (N = 5504) for development and 1/3 (N = 2750) for internal validation], and final model selection occurred in 16 additional studies [external va

Ice condensation as a planet formation mechanism

We show that condensation is an efficient particle growth mechanism that leads to growth beyond decimetre-sized pebbles close to an ice line in protoplanetary discs. As coagulation of dust particles is frustrated by bouncing and fragmentation, condensation could be a complementary, or even dominant, growth mode in the early stages of planet formation. Ice particles diffuse across the ice line and