344 research outputs found
Aphidius rhopalosiphi DeStefani
No full text15. Aphidius rhopalosiphi DeStefani Aphidius rhopalosiphi DeStefani, 1902: 633. Host. Myzus numecola on Prunus amygdalus (Subhrani et al. 2006). Distribution. Manipur (Subhrani et al 2006).Published as part of Akhtar, Mir Samim, Dey, Debjani & Usmani, Mohd. Kamil, 2011, A catalogue of aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) from India, pp. 1-31 in Insecta Mundi 2011 (151) on page 4, DOI: 10.5281/zenodo.453156
Abbandono universitario : indagine sulle motivazioni che spingono gli studenti a ritirarsi dal Corso di Laurea in Infermieristica
No full textThe Authors made a survey regarding the motivations which make the students leave the nursing degree course (NDC). The statistical data regarding the abandonment of university courses in Italy say that a 19/20% of the students leave the courses. As regards the whole University of Milan, the amount of those students (18,3%) lays under the national average. The authors made a survey about the motivations which lead the students of nursing to the abandonment of their academic path; via the offices of the nursing schools they collected the telephone numbers of the students enroled between 2000 and 2006, then they made a structured telephonic interview. An 87,7% of the interviewed students said that he/she had abandoned during the first year; the motivations are the following, in order of frequency: Too much engagement (30.1%), Other (26%), this item offers several answers, for example pregnancy, emotive problems, personal problems, Change of the academic path (23,3%) Expectations Disappointment (12,4%), Economic problems (8.2%). The survey is qualitative; it wants to be a first-step study to deeply analyze a topic of major interest in the field of nursing courses management
Elevated serum progesterone on the day of HCG administration in IVF is associated with a higher pregnancy rate in polycystic ovary syndrome
No full textOur study compared 84 patients with polycystic ovary syndrome (PCOS) with 84 control patients who had normal ovaries and who were matched for the main determinants of success in in-vitro fertilization (IVF) and embryo transfer. Serum concentrations of oestradiol and progesterone on the day of human chorionic gonadotrophin (HCG) injection were significantly higher in PCOS than in normal patients (oestradiol 2016 +/- 1.8 pg/ml versus 1456 +/- 40.9 pg/ml, P or = 1.2 ng/ml showed a higher pregnancy and miscarriage rate than PCOS patients with progesterone < 1.2 ng/ml (26.6 versus 17.9%, P < 0.01; and 41.7% versus 14.3%, P < 0.01 respectively). These findings suggest that premature progesterone production does not have an adverse effect on pregnancy rate in PCOS, but on the contrary, may be a predictor for success in IVF/embryo transfer
Klinefelter's syndrome and psychoneurologic function
No full textKlinefelter's syndrome (KS) is due to the presence of one or more supernumerary X chromosomes. Aneuploidy 47,XXY is the most common abnormality of sex chromosomes in humans, with an incidence of 1/500 male live births. Only one-third of subjects with KS is, however, diagnosed. The aim of this work is to present a review of current literature about neurogenetic functions in KS, referring to both clinical and therapeutics aspects. If it is well known that the majority of subjects with 47,XXY karyotype have a normal intellectual level, the identification of strengths and weaknesses of their intellectual functioning is important for the purpose of planning early psycho-educational interventions. Language difficulties are one of the more distinctive traits in cognitive functioning of people with KS. It has also been suggested that the limitations in communication markedly affect social adaptation and behavioral aspects, as well as the development of personality. Moreover, difficulties in learning language appear to be related to an altered functional lateralization; therefore, KS subjects are a suitable model for studying genetic abnormalities of lateralization. In this, perspective psychopathological risk is analyzed. Early recognition of this aspect is needed to address the educational and therapeutic perspectives for KS subjects
An experimental study of the effect of ischemia on testicular structure in the rat. Efficacy of intravenous inosine.
No full textLate diagnosis of Klinefelter syndrome (KS): role of learning disabilities (LD) and behavioural disorders
No full textProposal of New Natural Hydraulic Lime-Based Mortars for the Conservation of Historical Buildings
No full textNHL mortars are known to be compatible materials for the conservation of architectural heritage. To improve their properties with regard to salt resistance and lower their carbon footprint, NHL-based mortars with salt inhibitor agents were studied and different formulations were produced: NHL-based mortars (MSs), composed of natural hydraulic lime; and sand and cocciopesto mortars (MSCs), in which NHL, sand and brick powder were admixed with two different products, diethylenetriaminapenta and chitosan, in different concentrations. The mortar performance was tested against freeze–thaw and salt crystallization through immersion–drying cycles in a 14% sodium sulfate solution. The results highlighted that the addition of cocciopesto was effective in increasing the salt resistance, but increased the water intake during the freeze–thaw tests. The use of DTPMP produced less thixotropic mortars and decreased the water uptake, but worsened the salt resistance of hardened mortars. Chitosan allowed a good workability of fresh mortar; its water uptake was similar to the reference mortar and slightly increased the salt resistance. In the cocciopesto samples, both additives reduced the weight variation during freeze–thaw tests; meanwhile, for the lime samples, the additives increased the weight variation during the final cycles
May car washing represent a risk for Legionella infection?
No full textBackground. Legionella is a ubiquitous Gram-negative bacterium naturally found in aquatic environments. It can pose a health problem when it grows and spreads in man-made water systems. Legionella pneumophila is the most common cause of Legionnaires’ disease nowadays, a community-acquired pneumonia with pulmonary symptoms and chest radiography no different from any other form of infectious pneumonia. Legionella monitoring is important for public health reasons, including the identification of unusual environmental sources of Legionella.
Methods. We report two cases of Legionnaires’ disease associated with two different car wash installations in the province of Vicenza, in the Veneto region, northeastern Italy. Patients were not employees of the car wash installations, but users of the service. In both cases, Legionella antigen was detected in urine using the Alere BinaxNOW® Legionella Urinary Antigen, and Legionella antibodies were detected in serum using SERION ELISA classic Legionella pneumophila 1-7 IgG and IgM. Water samples were also analyzed as part of the surveillance program for Legionella prevention and control in compliance with the Italian guidelines.
Results. Both patients had clinical symptoms and chest radiography compatible with pneumonia, and only one of them had diabetes as a risk factor. Legionella urinary antigen and serological test on serum samples were positive for Legionella in both patients, even if much slighter in the case A due to the retrospective serological investigation performed a year later the episode and after the second clinical case occurred in the same district. The environmental investigations highlighted two different car wash plants as potential source of infection. A certified company using shock hyperchlorination was asked to disinfect the two plants and, subsequently, control samples resulted negative for Legionella pneumophila.
Conclusions. Any water source producing aerosols should be considered at risk for the transmission of Legionella bacteria, including car wash installations frequently used by a large number of customers and where poor maintenance probably creates favorable conditions for Legionella overgrowth and spreading. Additional research is needed to ascertain optimal strategies for Legionella monitoring and control, but environmental surveillance, paying careful attention to possible unconventional sources, should remain an important component of any Legionnaires’ disease prevention program. Additionally, all available diagnostic methods would be recommended for the confirmation of all cases even in the event of non-serogroup 1 Legionella pneumophila infection, probably underestimated at this time
Betão auto-compactável com incorporação de resíduo de mármore
No full text[PT] O setor da construção civil é responsável por um grande consumo de matérias-primas e pela
intensa geração de resíduos, e vem trabalhando na criação de procedimentos e produtos,
buscando cada vez mais a sustentabilidade. O betão auto-compactável (BAC) permite a
produção de um material mais “verde”, por exemplo, através do reaproveitamento de
resíduos industriais. No presente trabalho desenvolveu-se um programa experimental
visando a otimização de composições de BAC com incorporação do resíduo do
beneficiamento de mármores, da região do Alentejo em Portugal, conhecida como Zona do
Mármore. O programa experimental foi realizado segundo um plano fatorial ao nível do
betão, fixando a composição da pasta, para otimizar o esqueleto sólido formado pelos
agregados. Os resultados obtidos permitiram concluir que é possível substituir cimento por
pó de mármore sem afetar significativamente as propriedades de autocompactabilidade e
assim conseguir composições de BAC de mais baixa resistência e mais eco-eficientes,
adequadas a uma grande variedade de aplicações de betão estrutural.Este trabalho foi financiado pelo Projeto POCI-01-0145-FEDER-007457 – CONSTRUCT – Instituto de I&D em Estruturas e Construções – financiado pelo Fundo Europeu de Desenvolvimento Regional (FEDER) através do COMPETE2020 – Programa Operacional Competitividade e Internacionalização (POCI) e por fundos nacionais através da Fundação para a Ciência e a Tecnologia I.P. Os autores agradecem ainda o apoio do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Instituto Federal Fluminense (IFF) e do Centro Tecnológico da Pedra Natural de Portugal (CEVALOR).Destefani, A.; Nunes, S.; Sousa-Countinho, J. (2017). Betão auto-compactável com incorporação de resíduo de mármore. En HAC 2018. V Congreso Iberoamericano de hormigón autocompactable y hormigones especiales. Editorial Universitat Politècnica de València. 137-146. https://doi.org/10.4995/HAC2018.2018.5484OCS13714
Solar Energy, sistemas fotovoltaicos
No full textEl siguiente proyecto presentará la empresa Solar Energy, una empresa que se dedicará a la prestación de servicios de venta de kits de paneles fotovoltaicos. Teniendo como base tanto la presencia online con una página web y una tienda física. El nuevo emprendimiento se desarrollará en la ciudad de Villa Ocampo, provincia de Santa Fe, ciudad que dista 400km de la capital provincial.
La metodología de trabajo de la empresa será atraer a clientes interesados en la compra de módulos fotovoltaicos para su residencia o empresa. Para el primer año estima trabajar con cinco personas, cuatro empleados administrativos y un técnico en electricidad para el ensamble e instalación de los módulos fotovoltaicos. Para el tercer año estima la incorporación de un administrativo encargado del área de recursos humanos.
Respecto de variables tanto internas como externas al emprendimiento se ven oportunidades claras de crecimiento y desarrollo sostenible. De una población total de 774.334 personas, se consideró como perfil de cliente a familias tipo y estimó una demanda del 12.5% del total poblacional, conformando así una demanda estimada de 3493 familias durante los primeros 4 años, distribuidas en un diámetro de 80km tomando como punto de partida la ciudad de Villa Ocampo. El emprendimiento para poder iniciarse necesita de una inversión inicial tanto en activos fijos como capital de trabajo de $1.269.133,79. La tasa de corte del proyecto es del 68%. Espera recuperar la inversión al término de 1 años y 4 meses.Fil: Destefani, Renzo. Universidad FASTA. Facultad de Ciencias Económicas; Argentina.Fil: Mattio, Mariela. Universidad FASTA. Facultad de Ciencias Económicas; Argentina
- …
