Search results for "Reto"

Terre incognite. Retorica e religione in Machiavelli

2012

altrimenti periculoso trovare modi e ordini nuovi che si fussi cercare acque e terre incognite»… I Discorsi sopra la prima deca di Tito Livio si aprono con questa espressione celebre. Tuttavia si è spesso dato all’incipit un mero valore stilistico, un omaggio formale dell’ex Segretario fiorentino allo spirito dei tempi, segnato dai grandi viaggi e dalle scoperte strabilianti. Insomma, un’apertura di circostanza per entrare nella sostanza del commento sulla antica repubblica romana che conquistò il mondo. Invece vi è molto di più: è il simbolo perfetto e paradigmatico della cultura machiavelliana che intreccia storia e geografia, filologia e prospettiva, antico e moderno. È la nuova sensazio…

Exploring the chronospace of images

1996

Verettömät vaalit? : kevään 2007 eduskuntavaalien mainonnan analyysi

2008

Pro gradu käsittelee kevään 2007 eduskuntavaalien mainontaa. Työssä käsitellään kolmen suurimman puolueen, Suomen Keskustan, Suomen Sosiaalidemokraattisen puolueen ja Kansallisen Kokoomuksen, vaalimainontaa. Puolueilta on valittu sekä televisiomainontaa että ulko- ja/tai lehtimainontaa. Mukaan on otettu myös SAK:n tekemä äänestysaktiivisuuskampanja, joka nivoutui kansalaisten mielessä SDP:tä tukevaksi mainonnaksi. Vaalimainonta on muuttunut eduskunnan 100-vuotisen historian aikana paljon. Naisten mukaantulo politiikkaan, teknologian kehittyminen ja uusi perustuslaki ovat muokanneet vaalikampanjointia historian saatossa. Vuonna 2007 käytiin toiset pääministerivaalit. Nämä vaalit erosivat ede…

The effect of nacom (L-dopa and L-carbidopa) on growth hormone secretion in 75 patients with short stature.

1977

The stimulatory effect of Nacom (250 mg L-Dopa and 25 mg L-Carbidopa) on the HGH secretion was evaluated in 75 short stature patients. The number of blood samples was restricted to only three (0, 45 and 90 min). 63 patients reached adequate HGH concentrations after the ingestion of 1 tablet Nacom (84%). Somatotropin levels increased from 2.08 (Sx 0.28) to a maximal HGH value of 14.22 (Sx 0.87) ng/ml. When the stimulatory effect of Nacom was compared with the standard method of arginine infusion in children with normal stature the arginine test was not superior to the Nacom-test. The Nacom-test appears to be a simple and reliable screening method for HGH deficiency, particularly in outpatien…

Effects of nicotine receptor agonists on acetylcholine release from the isolated motor nerve, small intestine and trachea of rats and guinea-pigs

1992

The effects of nicotine receptor agonists on the release of [3H]acetylcholine from the phrenic nerve, the small intestine and the trachea were investigated to characterize neuronal nicotine receptors within the peripheral nervous system. Contraction of the indirectly-stimulated hemidiaphragm was recorded to investigate desensitization of the postsynaptic muscular nicotine receptors. Nicotine, cytisine, 1,1-dimethyl-4-phenylpiperazinium and 2-(4-aminophenyl)-ethyl-trimethyl-ammoniumiodide caused a concentration-dependent (0.1-30 microM) increase in evoked [3H]acetylcholine release from the phrenic nerve, whereby bell-shaped concentration-response curves were obtained. The rank order of decre…

The ecdysone-induced DHR4 orphan nuclear receptor coordinates growth and maturation in Drosophila

2005

0092-8674 (Print) Journal Article Research Support, Non-U.S. Gov't; A critical determinant of insect body size is the time at which the larva stops feeding and initiates wandering in preparation for metamorphosis. No genes have been identified that regulate growth by contributing to this key developmental decision to terminate feeding. We show here that mutations in the DHR4 orphan nuclear receptor result in larvae that precociously leave the food to form premature prepupae, resulting in abbreviated larval development that translates directly into smaller and lighter animals. In addition, we show that DHR4 plays a central role in the genetic cascades triggered by the steroid hormone ecdyson…

Refractory Death Rattle: Deep Aspiration Facilitates the Effects of Antisecretory Agents

2011

Anticholinergic drugs, including atropine, hyoscine butylbromide, and scopolamine, have been shown to be equally effective in the treatment of death rattle. However, anticholinergic drugs may only be effective in reducing the production of further secretions, rather than eliminating the existing ones. A case is described in which a preventive procedure was undertaken to carefully eliminate secretions before starting anticholinergic drugs. Airway aspiration under light anesthesia removed secretions before starting anticholinergic drugs. Low doses of propofol were given intravenously to make a laryngoscopy feasible, allowing the complete aspiration of large amounts of tracheal secretions. No …

A peek inside the neurosecretory brain throughOrthopedialenses

2008

The wealth of expression and functional data presented in this overview discloses the homeogene Orthopedia (Otp) as critical for the development of the hypothalamic neuroendocrine system of vertebrates. Specifically, the results depict the up-to-date portrait of the regulation and functions of Otp. The development of neuroendocrine nuclei relies on Otp from fish to mammals, as demonstrated for several peptide and hormone releasing neurons. Additionally, the activity of Otp is essential for the induction of the dopaminergic phenotype in the hypothalamus of vertebrates. Recent insights into the pathways required for Otp regulation have revealed the implication of the main extracellular signal…

Gas-containing renal stones: a red flag for renal infection.

2022

Background Gas in the renal excretory system is described as a consequence of recent procedures but it can be a sign of severe conditions such as fistulas or infections; however, gas-containing renal stones are only rarely encountered. Purpose To describe the association of gas-containing renal stones and urinary tract infection. Material and Methods We performed a retrospective evaluation of the clinical and imaging findings in a series of six patients with gas-containing renal stones and compared our findings with those of patients with gas-containing renal stones reported in the literature. Urine and stone cultures were used as a diagnostic standard for urinary tract infection. Results I…

The hypothalamic magnocellular neurosecretory system in developing rats

2009

Studies concerning the development of the magnocellular system are scarce and discordant in literature. We carried out an immunohistochemical study on supraotic and paraventricular hypothalamic nuclei using antivasopressin and antioxytocin antibodies in developing rats between the 15th day of intrauterine life and the 6th day of postnatal life. In addition, we performed RT-PCR experiments to establish the stage at which these hormones appear and neurosecretory activity commences. The results showed that supraoptic and paraventricular nuclei appear, respectively, on the 16th and the 18th day of intrauterine life and both immediately synthetize vasopressin neurohormone. By contrast, synthesis…