Search results for "solu"
showing 10 items of 7577 documents
La percepción de hombres y mujeres respecto a la conciliación vida laboral, personal y familiar : el caso de la Universitat de València
2014
El objetivo principal de esta comunicación es dar a conocer las percepciones que tanto los trabajadores como las trabajadoras de la Universitat de València (UVEG) tienen sobre la conciliación vida laboral, personal y familiar. A través de un muestreo no probabilístico por accesibilidad, se recogen 487 encuestas de abril a junio de 2012, entre el Personal Docente e Investigador (PDI) y el Personal de Administración y Servicios (PAS) de dicha Universidad. Concretamente, se diseña y aplica una encuesta ad hoc compuesta por 72 ítems, de los cuales 51 se presentan en una escala tipo Likert de 5 puntos (de Nada/Totalmente en desacuerdo a 5 Siempre/Totalmente de acuerdo). Las respuestas, han sido …
Nitric oxide increases the decay of matrix metalloproteinase 9 mRNA by inhibiting the expression of mRNA-stabilizing factor HuR.
2003
Dysregulation of extracellular matrix turnover is an important feature of many inflammatory processes. Rat renal mesangial cells express high levels of matrix metalloproteinase 9 (MMP-9) in response to inflammatory cytokines such as interleukin-1 beta. We demonstrate that NO does strongly destabilize MMP-9 mRNA, since different luciferase reporter gene constructs containing the MMP-9 3' untranslated region (UTR) displayed significant reduced luciferase activity in response to the presence of NO. Moreover, by use of an in vitro degradation assay we found that the cytoplasmic fractions of NO-treated cells contained a higher capacity to degrade MMP-9 transcripts than those obtained from contro…
Problemi dell’archeologia della Sicilia ellenistico-romana: il caso di Solunto, in Archeologia Classica , 2006
2007
Il contributo s’incentra sul sito sul Monte Catalfano (PA), da lungo tempo identificato con la città punica di Solunto e oggetto, sin dall‘800 e soprattutto negli anni ’50 del ‘900, di scavi in estensione che hanno restituito un’immagine suggestiva, e assai istruttiva, di un centro urbano del periodo “ellenistico-romano”. Nonostante un certo appiattimento della critica archeologica su una prospettiva tendente a proiettare i rinvenimenti (divulgati solo attraverso notizie preliminari e studi parziali di aspetti dell’urbanistica, dell’arredo e di pochi reperti significativi) su un orizzonte greco- punico, in buona sostanza “pre-romano”, i risultati di ricerche più approfondite su singoli comp…
Die Dissoziationskonstanten von 2,2?-Dihydroxydiphenylmethanderivaten
1973
The pK-values of the first and second degree of dissociation of 2.2′-dihydroxy-5-methyl-3′.5′-dinitro-diphenylmethane, 2.2′-dihydroxy-5-methyl-5′-nitro-diphenylmethane and 2.2′-dihydroxy-5.5′-dimethyl-3′-nitro-diphenylmethane were determined in aqueous solution at 25°C spectrophotometrically. Comparing the observed pK-values with those of 2-methyl-4.6-dinitrophenol, 2-methyl-4-nitrophenol, 2.4-dimethyl-6-nitro-phenol and 2.4-dimethylphenol, we found a decrease of the values of pK1 and an increase of pK2. We explain this by the formation of an intramolecular hydrogen bridge which stabilizes the anion of the half dissociated form. This assumption is supported by the UV spectra.
Hydroponic Lettuce Cultivation Using Organic Nutrient Solution from Aerobic Digested Aquacultural Sludge
2021
The aim of this study was to demonstrate how aquacultural sludge can be processed and utilized as an organic nutrient solution (ONS) for hydroponic lettuce production. By using a previous developed method, approximately 80% of the processed sludge was reclaimed as a clear, nutrient-rich solution. The performance of the recovered nutrient solution on lettuce growth was assessed in a nutrient film hydroponic system. The results were compared to the results obtained using a conventional nutrient solution (CNS). Yield, fresh weight, water consumption, and nutrient and heavy metal content in leaf tissue were measured. In spite of a 16% lower average fresh weight obtained in ONS compared to the w…
An Exact Solution for the Level-Crossing Rate of Shadow Fading Processes Modelled by Using the Sum-of-Sinusoids Principle
2008
Published version of an article in the journal: Wireless Personal Communications. The original publication is available at Springerlink. http://dx.doi.org/10.1007/s11277-008-9512-3 The focus of this paper is on the higher order statistics of spatial simulation models for shadowing processes. Such processes are generally assumed to follow the lognormal distribution. The proposed spatial simulation model is derived from a non-realizable lognormal reference model with given correlation properties by using Rice's sum-of-sinusoids. Both exact and approximate expressions are presented for the level-crossing rate (LCR) and the average duration of fades (ADF) of the simulation model. It is pointed …
Investigation of vehicle crash modeling techniques: theory and application
2013
Published version of an article in the journal: The International Journal of Advanced Manufacturing Technology. Also available from the publisher at: http://dx.doi.org/10.1007/s00170-013-5320-3 Creating a mathematical model of a vehicle crash is a task which involves considerations and analysis of different areas which need to be addressed because of the mathematical complexity of a crash event representation. Therefore, to simplify the analysis and enhance the modeling process, in this work, a brief overview of different vehicle crash modeling methodologies is proposed. The acceleration of a colliding vehicle is measured in its center of gravity—this crash pulse contains detailed informati…
Characterization of field isolates of Trichoderma antagonistic against Rhizoctonia solani.
2010
The aim of the present study was to characterize sixteen isolates of Trichoderma originating from a field of sugar beet where disease patches caused by Rhizoctonia solani were observed. Use of both molecular and morphological characteristics gave consistent identification of the isolates. Production of water-soluble and volatile inhibitors, mycoparasitism and induced systemic resistance in plant host were investigated using in vitro and in vivo tests in both sterilized and natural soils. This functional approach revealed the intra-specific diversity as well as biocontrol potential of the different isolates. Different antagonistic mechanisms were evident for different strains. The most antag…
Personāla vadības funkciju analīze un to pilnveides iespējas uzņēmumā SIA “Secure Solutions Latvia”.
2020
Bakalaura darba tēma ir personāla vadības funkciju analīze un to pilnveides iespējas uzņēmumā SIA “Secure solutions Latvia”. Darba mērķis ir pamatojoties uz uzņēmuma SIA “Secure Solutions Latvia” personāla vadības funkciju analīzi, identificēt nozīmīgākās problēmas un izstrādāt priekšlikumus tās pilnveidošanai. Mērķa sasniegšanai tika veikta literatūras izpēte un analīze par personālu vadību un tās funkcijām, izstrādāts pētījums, analizējot personāla vadības funkcijas un to īstenošanu uzņēmumā SIA ,,Secure Solutions Latvia”, t kā arī veikta darbinieku anketēšana, metode tiek izmantota, lai noskaidrotu uzņēmuma darbinieku viedokli personāla vadības darbību un personāla vadības funkciju izpil…
X-ray powder diffraction study of the stability of solid solutions in LaO(Cl1−xBrx)
1997
Abstract The formation of solid solutions in the LaO(Cl 1− x Br x ) series was studied by X-ray powder diffraction (XPD), Rietveld profile refinement and bond valence calculations. The LaO(Cl 1− x Br x ) (0 ≤ x ≤ 1, step 0.2, and x = 0.5) powder samples were prepared by the solid state reaction between La 2 O 3 and a mixture of ammonium chloride and bromide. The X-ray powder diffraction patterns were collected at room temperature between 5 and 125° in 2Θ using Cu K α 1 radiation (λ = 1.5406 A). The XPD data between 20 and 90° were analyzed with the DBWS-9006PC Rietveld profile refinement program. All the LaO(Cl 1− x Br x ) phases studied crystallize in the tetragonal PbFCl-type structure wi…