1,171 research outputs found
Myths of Multipolarity: The Sources of Brazil's Foreign Policy Overstretch
In this article, we provide a framework to analyze the foreign policy overstretch of middle powers, that is, their recent tendency to expand foreign policy goals and ambitions beyond their capabilities. We propose that overstretch results from the interaction of permissive international environments and the collusion of domestic actors to produce foreign policy myths. These myths, in turn, justify unsustainable swelling of foreign policy expenditures until they are shattered. After laying out our theory, we test it against the case of twenty-first-century Brazil. First, we document how interest groups logrolled to foster and capitalize on a âmyth of multipolarity,â which, once entrenched in elite discourse and public opinion, resulted in a tangible overgrowth of foreign policy. Second, we show the extent of overstretch across four indicatorsânumber of embassies, participation in peacekeeping operations, membership in international organizations, and aid projects overseasâusing the synthetic control method to compare Brazil with a plausible counterfactual
Diagnosis, Genetics, and Therapy of Short Stature in Children: A Growth Hormone Research Society International Perspective
The Growth Hormone Research Society (GRS) convened a Workshop in March 2019 to evaluate the diagnosis and therapy of short stature in children. Forty-six international experts participated at the invitation of GRS including clinicians, basic scientists, and representatives from regulatory agencies and the pharmaceutical industry. Following plenary presentations addressing the current diagnosis and therapy of short stature in children, breakout groups discussed questions produced in advance by the planning committee and reconvened to share the group reports. A writing team assembled one document that was subsequently discussed and revised by participants. Participants from regulatory agencies and pharmaceutical companies were not part of the writing process. Short stature is the most common reason for referral to the pediatric endocrinologist. History, physical examination, and auxology remain the most important methods for understanding the reasons for the short stature. While some long-standing topics of controversy continue to generate debate, including in whom, and how, to perform and interpret growth hormone stimulation tests, new research areas are changing the clinical landscape, such as the genetics of short stature, selection of patients for genetic testing, and interpretation of genetic tests in the clinical setting. What dose of growth hormone to start, how to adjust the dose, and how to identify and manage a suboptimal response are still topics to debate. Additional areas that are expected to transform the growth field include the development of long-acting growth hormone preparations and other new therapeutics and diagnostics that may increase adult height or aid in the diagnosis of growth hormone deficiency.info:eu-repo/semantics/publishedVersio
Influence of soil water content and atmospheric conditions on leaf water potential in cv. "Touriga Nacional" deep-rooted vineyards
Abstract In this study, the influence of soil and atmosphere
conditions on noon and basal leaf water potential of
vines ââTouriga Nacionalââ in the DaËo region submitted to
different irrigation treatments is analysed. Both indicators
showed to be dependent on environmental conditions at the
time of measurement. Leaf water potential at noon of fully
watered plants was linearly related with atmospheric conditions,
with values registered when vapour pressure deficit
(VPD) was higher than approximately 3 kPa being no
different from the values registered in stressed plants.
Therefore, this indicator cannot be reliably used to distinguish
different plant water stress levels when atmospheric
conditions induce high evaporative demands. The basal
leaf water potential (wb) was also influenced by VPD at the
time of measurement for all soil water conditions. In well
irrigated plants, it was even possible to establish a baseline
that can therefore be used to identify nonwater stressed
conditions (wb (MPa) = -0.062â0.0972 VPD (kPa),
r2 = 0.78). A good correlation was found between soil
humidity and wb. However, more than the average value of
the whole thickness of soil monitored, the wb values were dependent on the distribution of soil humidity, with the
plants responding to the presence of wet layers
Calibration of photomultiplier arrays
A method is described that allows calibration and assessment of the linearity of response of an array of photomultiplier tubes. The method does not require knowledge of the photomultiplier single photoelectron response model and uses science data directly, thus eliminating the need for dedicated data sets. In this manner all photomultiplier working conditions (e.g. temperature, external fields, etc.) are exactly matched between calibration and science acquisitions. This is of particular importance in low background experiments such as ZEPLIN-III, where methods involving the use of external light sources for calibration are severely constrained
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