Background—Adrenergic agents are commonly used in the treatment of chronic orthostatic intolerance with postural tachycardia syndrome (POTS). POTS may be associated with increased limb blood flow (“high flow”) and defective orthostatic vasoconstriction or decreased limb blood flow (“low flow”) and potentially with small blood volume. Methods and Results—We investigated the consequences of short...

sufficient coating of tin being applied, or to the cooks cleaning the surface of the utensils with sand and thus laying bare the copper. The result is probably a committee, which either throws the blame on the cooks or the tinning contractor, and causes much trouble to the regimental authorities and the commissariat department A short time ago when inspecting the hospital cooking utensils which...

BACKGROUND In postural tachycardia syndrome (POTS) and repeated neurocardiogenic presyncope (NCS), orthostatic intolerance occurs without persistent sympathetic neurocirculatory failure. Whether these conditions involve abnormal cardiac sympathetic innervation or function has been unclear. METHODS AND RESULTS Patients with POTS or NCS underwent measurements of neurochemical indices of cardiac...

Sugarcane is an important resource for bioenergy. Fields are usually established by using 15-20 cm pieces of sugarcane stalks as propagation material. An alternative method is to use small chips with nodes from sugarcane stalks. Plants from nodes are often established in plastic pots, but plastic pots could be replaced with biodegradable paper pots. This would be a more sustainable solution, re...

Postural tachycardia syndrome (POTS) is characterized by excessive increases in heart rate (HR) without hypotension during orthostasis. The relationship between the tachycardia and anxiety is uncertain. Therefore, we tested whether the HR response to orthostatic stress in POTS is primarily related to psychological factors. POTS patients (n = 14) and healthy controls (n = 10) underwent graded ve...

BACKGROUND Functional group composition may affect invasion in two ways the effect of abundance, i.e. dominance of functional group; and the effect of traits, i.e. identity of functional groups. However, few studies have focused on the role of abundance of functional group on invasion resistance. Moreover, how resource availability influences the role of the dominant functional group in invasio...

russian knapweed (acroptilon repens l.) is a perennial weed of aceraceae that is becoming a dominant weed in suitable conditions. in order to find an ecological non-chemical approach for controlling russian knapweed and studying the possibility of using flower-eater mite (aceria acroptiloni shevchenko & kacalev) (acari: eriophyidae), a series of studies including field survey and field experime...

to photoperiod. It is widely accepted that the early phase of soybean development is not influenced by photopeTo accurately model the flowering process in soybean, it is essential riod and can therefore be described as a juvenile phase to identify photoperiod-sensitive and photoperiod-insensitive phases (Shanmugasundaram and Tsou, 1978; Hodges and of development. Despite extensive studies, ther...

Obtaining performance models, like Markov chains and queueing networks, for systems of signi cant complexity and magnitude is a di cult task that is usually tackled using human intelligence and experience. This holds in particular for performance models of a highly irregular nature. In this paper we argue by means of a non-trivial example – a plain-old telephone system (POTS) – that a stochasti...