Search results for "PANA"
showing 10 items of 193 documents
Groupanalytical studies of mafia phenomenon.
2009
Widely Acclaimed but Lowly Utilized: Congruencing ODL Utilization with its Wide Acclaim
2019
World over, open distance learning (ODL) is widely articulated and vouchered as a panacea pedagogy for increased access and flexibility to higher education. In reality, however, the actual use of ODL approaches in higher institutions of learning in developing regions is unexpectedly low and not in tandem with its wide favorable regional and international vouchering. This paper has the goal to suggest a framework for congruencing the low utilization levels of ODL approaches with their wide acclaim. Using a cross sectional survey, an inquiry was conducted among faculty across institutions of higher learning in Uganda to establish: i) the factors explaining the wide acclaim for ODL; ii) the ut…
Corporate Networks and business influence in Panama, Costa Rica, and El Salvador.
2021
Objective/Context: This paper explores the relationship between corporate networks and business influence to figure out the conditions of state capture. Methodology: We analyze corporate networks through interlocking directorates in three Central American countries - Panama, Costa Rica, and El Salvador - using network analysis, and we pinpoint the relationship between the structure of the corporate network and two corporate political actions: contributions to presidential campaigns and revolving doors. Conclusions: Results show corporate networks were fragmented in the three Central American countries, except for a well-connected business cluster in Panama. The organization of business elit…
Detrás de las palabras: usos políticos del concepto de imparcialidad y su función en la construcción de la historia de América en la Ilustración espa…
2018
En tiempos de renovado debate sobre el presentismo y la objetividad de los historiadores, pretendo indagar en los usos ideológicos y las funciones políticas que desempeñó el concepto de imparcialidad en la Ilustración española, su relación con la escritura de la historia y, más particularmente, con la conquista de América. A partir de diversos textos impresos de finales del s. XVIII e inicios del s. XIX —apologías, elogios, diccionarios y otros textos literarios— y adoptando una metodología que aúna la historia cultural y de los conceptos, me detendré en cómo las élites culturales dieciochescas atribuyeron al concepto un significado positivo y necesario para construir los discursos sobre lo…
Evaluation of the environmental impact of volcanic emissions from the chemistry of rainwater: Mount Etna area (Sicily)
2001
Abstract The S, halogen and NO 3 contents of rainwater samples from the Etnean area were studied in order to define the environmental impact of plume emissions on the local environment. Samples, collected on a network of 11 bulk rain gauges, show significant variability in anion content, which can be ascribed to different meteorological and environmental conditions at each sampling site and to a variable distance from the different source areas. Data analysis suggests that S, F, Cl and Br are mainly magma-derived, whereas NO 3 mainly originates from anthropogenic sources. Samples collected from sites close to craters display considerable temporal variability, with increased anion concentrat…
Misdiagnosis and pitfalls in Panayiotopoulos syndrome
2019
Abstract Panayiotopoulos syndrome (PS) is a frequent (6% among children of 1–15 years) and benign epileptic syndrome, characterized by predominantly autonomic symptoms (emesis, pallor, flushing, cyanosis, mydriasis/miosis, cardiorespiratory and thermoregulatory alterations, incontinence of urine and/or feces, hypersalivation, and modifications of intestinal motility) associated with simple motor focal seizures, which can be followed by secondary generalization. Panayiotopoulos syndrome can be extremely insidious, because it can mimic several condition, such as gastroenteritis, gastroesophageal reflux disease, encephalitis, syncope, migraine, sleep disorders, or even metabolic diseases. This…
Cultural adaptation of the Smiling is Fun program for the treatment of depression in the Ecuadorian public health care system: A study protocol for a…
2021
Background Depression is one of the world's major health problems. Due to its high prevalence, it constitutes the first cause of disability among the Americas, where only a very low percentage of the population receives the adequate evidence-based psychological treatment. Internet-Based Interventions (IBIs) are a great alternative to reduce the treatment gap for mental disorders. Although there are several studies in low-and middle-income countries proving IBIs' feasibility and acceptability, there is still little evidence of the effectiveness in diverse social and cultural contexts such as Latin America. Methods Two studies will be described: Study 1 is focused on the cultural adaptation o…
Novel 4-(3-phenylpropionamido), 4-(2-phenoxyacetamido) and 4-(cinnamamido) substituted benzamides bearing the pyrazole or indazole nucleus: synthesis…
2019
Based on some common structural features of known compounds interfering with p53 pathways and our previously synthesized benzamides, we synthesized new ethyl 5-(4-substituted benzamido)-1-phenyl-1H-pyrazole-4-carboxylates 26a-c, ethyl 5-(4-substituted benzamido)-1-(pyridin-2-yl)-1H-pyrazole-4-carboxylates 27a-c and N-(1H-indazol-6-yl)-4-substituted benzamides 31a,b bearing in the 4 position of the benzamido moiety the 2-phenylpropanamido or 2-phenoxyacetamido or cinnamamido groups. A preliminary test to evaluate the antiproliferative activity against human lung carcinoma H292 cells highlighted how compound 26c showed the best activity. This last was therefore selected for further studies wi…
Small angle neutron scattering study of the quaternary structure of haemocyanin of Rapana thomasiana
1996
Abstract Small angle neutron scattering (SANS) experiments were performed on a series of solutions of haemocyanin (Hc) of Rapana thomasiana . In a first series of solutions, by changing the external contrast a model of the molecule that is apparently in disagreement with electron microscopy (EM) measurements was obtained. The apparent disagreement was resolved by performing experiments on a series of variable protein concentration solutions in D 2 O. The physical parameters of the model, extrapolated to zero concentration, are in excellent agreement with the EM results obtained on samples more dilute than those examined with SANS.
Homogeneous and supported copper complexes of cyclic and open-chain polynitrogenated ligands as catalysts of cyclopropanation reactions
1999
CuI and CuII complexes of cyclic and open-chain polyaza compounds have been tested as catalysts in the benchmark cyclopropanation reaction of styrene with ethyl diazoacetate. In general, only small amounts of copper are needed to promote the reaction. The catalytic activity depends on the structure of the ligand, e.g. amine–amides are more efficient than polyamines, and on the oxidation state of copper, CuII being more active than CuI. Given that CuI is the active species, these changes of behavior must be related to the stabilities of the complexes. The nature of the counterion also has a noticeable influence on the catalytic activity, the role of which is discussed. XAS measurements sugge…