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How to interpret differing cerebral blood flow patterns estimated with 99tcm-hmpao and 99tcm-ecd spet in a healthy population

Two radiopharmaceuticals, 99Tcm-hexamethyl propylene amine oxime (99Tcm-HMPAO) and 99Tcm-ethyl cysteinate dimer (99Tcm-ECD), are currently used to determine cerebral blood flow. 99Tcm-ECD is, by virtue of its greater stability, superceding 99Tcm-HMPAO for routine examinations. Since the clinical assessment of 99Tcm-ECD images is usually based on experience with 99Tcm-HMPAO, we used both radiopharm

Almost global convergence for distance- and area-constrained hierarchical formations without reflection

This paper discusses formation shape control systems with both distance and signed area constraints, which aim to avoid the flipping or reflection ambiguity in a target formation shape. We prove an almost global convergence result for a triangle formation with general shape, by choosing a particular value of the control gain associated with the formation area term. This result extends the recent p

Orthostatic hypotension in Alzheimer's disease : Result or cause of brain dysfunction?

In Alzheimer's disease (AD), an association was found between autonomic dysfunction and frontal hypoperfusion in brain during orthostatic testing. To ascertain whether frontal hypoperfusion is dependent on longitudinal effects of hemodynamic disturbances, or contributes to them, we studied the relationship between the presence of orthostatic hypotension (OH) and resting cerebral blood flow (CBF) i

No increase in fracture incidence in patients treated for thyrotoxicosis in Malmo during 1970-74. A 20-year population-based follow-up

Objectives. To study whether there is an increased fracture incidence following thyrotoxicosis. Design. A case-control study. Setting. Malmo University Hospital, Malmo, Sweden. Subjects: All patients (n = 333) from the population of Malmo who were treated for thyrotoxicosis for the first time during the 5-year period 1970-74. A total of 618 controls were selected from the local municipality regist

Sound interventions : How to think about a place not yet

As a part of a democratic demand for transparency in urban development processes it is important that design professionals hold the ability to scrutinize their own work process, and at certain stages let go of predefined ideas of future realities. The work of Sandra Kopljar’s dissertation revolves around how design professionals perceive options for design in such situations. A basic assumption th

Architecture Animated, bushes/horses

Architecture Animated aims to explore different methodsof photography, i.e. photographing as a way of discoveryrather than narrative or confirmation. These are some ofour first findings.Animals have agency, a will of their own and they takeshape and make sense by their own practices and byothers’. They open up for investigations on architectureswithout a given sender and thus no given image. This

Very Integrated Program (VIP): Smoking and other lifestyles, co-morbidity and quality of life in patients undertaking treatment for alcohol and drug addiction in Sweden.

Background Most patients with alcohol and drug addiction have other risky lifestyles and non-communicable diseases (NCDs), adding to their morbidity and pre-mortality. Those are, however, potentially preventable. The aim was to identify and compare the patients in treatment for alcohol and drug addiction and identify important factors for high risk. Methods Data was collected prospectively by in

Evidence for leptin regulation of food intake in humans

The adipocyte hormone leptin regulates body weight in mice by decreasing food intake and increasing energy expenditure. Whether leptin is of physiological importance for these processes in humans is, however, not clear. We therefore studied the relation between leptin and habitual food intake in 64 healthy postmenopausal women. Dietary habits were assessed with a modified diet history method. Body

Cerebral blood flow in white matter is correlated with systolic blood pressure and EEG in senile dementia of the Alzheimer type

The presence and functional significance of white matter lesions in the ageing brain and in dementia as well as their relation to blood pressure are often discussed. The aim of this study was to evaluate cerebral blood flow in white matter (WMCBF) and its relation to systemic blood pressure and multichannel EEG. WMCBF was measured in 24 elderly women with senile dementia of Alzheimer's type (SDAT,

A prospective study of orthostatic blood pressure in diabetic patients

To clarify whether orthostatic blood pressure is affected by the type of diabetes, cardiac autonomic neuropathy, and the duration of diabetes, orthostatic blood pressure (passive 90°tilt) was evaluated in 102 patients with insulin dependent diabetes mellitus (IDDM), 51 patients with non-insulin dependent diabetes mellitus (NIDDM), and in 238 control subjects in a first study followed up after 8 to

Feasible Coordination of Multiple Homogeneous or Heterogeneous Mobile Vehicles with Various Constraints

We consider the problem of feasible coordination control for multiple homogeneous or heterogeneous mobile vehicles subject to various constraints (nonholonomic motion constraints, holonomic coordination constraints, equality/inequality constraints etc). We develop a general framework involving differential-algebraic equations and viability theory to describe and determine coordination feasibility

Quality control program for storage of biologically banked blood specimens in the Malmo diet and cancer study

A biological bank has been developed to extend the biochemical and molecular research base for a prospective study on diet and cancer in the city of Malmo, Sweden. The study entered individuals 45-69 years of age, of which 30,382 individuals (45%) participated. Each individual entering the bank has stored samples of viable mononuclear leukocytes (MNLs; -140°C) and granulocytes (GRANs; -80°C) or bu

Fermented milk products are associated to ulcer disease. Results from a cross-sectional population study

Background: Prevalence of peptic ulcer disease has been associated to diet. Some dietary factors seem to have bactericidal effect which may modify the risk of peptic ulcer disease. The objective was to analyze associations between dietary habits and peptic ulcers. Design: A cross sectional population study. Subjects: One thousand, one hundred and thirty-five subjects out of 11,700 randomly invited

Networking our way to better Ecosystem Service provision

The ecosystem services (EcoS) concept is being used increasingly to attach values to natural systems and the multiple benefits they provide to human societies. Ecosystem processes or functions only become EcoS if they are shown to have social and/or economic value. This should assure an explicit connection between the natural and social sciences, but EcoS approaches have been criticized for retain

Temporal Viability Regulation for Control Affine Systems with Applications to Mobile Vehicle Coordination under Time-Varying Motion Constraints

Controlled invariant set and viability regulation of dynamical control systems have played important roles in many control and coordination applications. In this paper we develop a \textit{temporal} viability regulation theory for general dynamical control systems, and in particular for control affine systems. The time-varying viable set is parameterized by time-varying constraint functions, with

Increased incidence of fractures in middle-aged and elderly men with low intakes of phosphorus and zinc

The aim of the study was to determine dietary risk factors for fracture in men aged 46-68 years. Six thousand five hundred and seventy-six men were randomly invited using the Municipal Registry to a diet and health study. The diet was assessed using a combined 7-day menu book for hot meals, beverages and dietary supplements and a quantitative food frequency questionnaire for other foods. The fract

Bias in diet assessment methods - Consequences of collinearity and measurement errors on power and observed relative risks

Background. If several risk factors for disease are considered in a regression model and these factors are affected by measurement errors, the observed relative risk will be attenuated. In nutritional epidemiology, several nutrient variables show strong correlation, described as collinearity. The observed relative risk will then depend not only on the validity of the chosen diet assessment method

Patient insight - perioperative smoking and alcohol cessation intervention?

Background The involvement of patient preferences is sometimes forgotten in the evidence-based medicine and the development of clinical guidelines. Many preunderstandings among clinical staff exist on patients’ preferences towards smoking and alcohol cessation programs. The aim of this project was therefore to get insight of the patients’ preferences regarding undertaking smoking and risky alcohol