Search results for "Iode"
showing 10 items of 1284 documents
GREEN COMPOSITES BASED ON BIODEGRADABLE POLYMERS AND WOOD FLOUR
2010
Volcanic CO2 measurements at Campi Flegrei by Infrared Tunable Diode Laser absorption Spectroscopy
2014
Gas studies add information for the interpretation of fluid circulation dynamics at dormant volcanoes and can contribute to eruption forecasting. Direct in-situ and remote-sensing techniques were used in order to improve volcanic gas monitoring, essential for hazard assessment. In the last decades, near-infrared diode lasers have increasingly been used in atmospheric research and, though in an experimental phase, are now finding applications in volcanic gas studies. The Tunable Diode Laser Spectroscopy technique (TDLS) relies on measuring the absorbance at specific wavelengths due to the absorption of IR radiation by a target gas. Here, we report on the application of the GasFinder 2.0, an …
The growth of soil fungi Penicillium in the presence of N-(2-pyridylamino)methylenebisphosphonate as an alternative source of nutrients
2017
Kwas N-(2-pirydyloamino)metylenobisfosfonowy wykazują dużą aktywność herbicydową. W związku z tym należy zbadać jego odziaływanie na mikroorganizmy glebowe. Celem przeprowadzonych badań była ocena zdolności glebowych szczepów Penicillium do wzrostu w obecności kwasu N-(2-pirydyloamino)metylenobisfosfonowego jako alternatywnego źródła fosforu lub azotu lub węgla. Hodowle grzybów prowadzono w pełnym i zmodyfikowanym mineralnym podłożu Czapek, w temperaturze 25°C, przez 1–4 tygodnie. Modyfikacja podłoża polegała na wprowadzeniu 1 mM kwasu N-(2 pirydyloamino)metylenobisfosfonowego jako alternatywnego źródła składników odżywczych. Kontrolę względną stanowił wzrost grzybów w pełnym mineralnym pod…
Nitrous oxide emissions in a membrane bioreactor treating saline wastewater contaminated by hydrocarbons
2016
The joint effect of wastewater salinity and hydrocarbons on nitrous oxide emission was investigated. The membrane bioreactor pilot plant was operated with two phases: i. biomass acclimation by increasing salinity from 10 gNaCl L−1 to 20 gNaCl L−1 (Phase I); ii. hydrocarbons dosing at 20 mg L−1 with a constant salt concentration of 20 gNaCl L−1 (Phase II). The Phase I revealed a relationship between nitrous oxide emissions and salinity. During the end of the Phase I, the activity of nitrifiers started to recover, indicating a partial acclimatization. During the Phase II, the hydrocarbon shock induced a temporary inhibition of the biomass with the suppression of nitrous oxide emissions. The r…
Twenty Years of Airborne Water Vapor and Total Water Measurements of a Diode Laser Based Photoacoustic Instruments
2020
We present relevant issues collected over twenty years of development and operation of an airborne water vapour / total water detector based on photoacoustic spectroscopy. The WaSulHygro instrument possesses high selectivity, short response time, and wide dynamic range, that are key requirements against trace gas measurement systems for applications in atmospheric sciences. Besides the major properties of WaSul-Hygro we discuss our efforts to develop a robust instruments that have proved its long-term reliability over the last fifteen years operating on-board a commercial aircraft within the framework of the CARIBIC project.2
Kanabinoīdu izraisīto psihotisku traucējumu un šizofrēnijas attīstības risks
2020
KOPSAVILKUMS Mūsdienās sabiedrības attieksme kanabinoīdu lietošanas ziņā mainās ar vien dramatiskāk. Bieži vien tiek akcentēts, ka kanabisa un to derivātu lietošana ir mazāk bīstama, nekā jebkuru citu potenciāli apreibinošu vielu izmantošana. Tika plaši reklamēts izcils medicīniskais kanabinoīdu potenciāls. Sakara ar to, kanabisa valsts produktu legalizācija un dekriminalizācija notiek arvien plašāk, tas izraisa kanabinoīdu saturošu produktu ar vien vairāk pieaugošu popularitāti lielākos pasaules tirgos, ka arī visa vecuma populācijās. Pēc Eiropas Narkotiku un narkomānijas uzraudzības centra (EMCDDA) 2019. gada datiem to lietošana 5 reizes pārsniedz citu narkotisku vielu lietošanu. Kanabino…
Brief interventions in counselling for nutrition and the prevalence of metabolic syndrome in primary care adult patients
2018
This research i) examined the influence of a brief nutrition-based intervention among primary care patients in changing nutrition and clinical values related to metabolic syndrome (study 1), and ii) assessed nutrition and the prevalence of metabolic syndrome and its clinical determinants among primary care patients in different sociodemographic groups (study 2). In study 1, a systematic literature review was conducted on eight databases during Sept.-Oct. 2016 with a final update in Nov. 2017. In study 2, data (n=557 for RO II-III, n=251 for RO IV-V) collected in primary care practices in Central Finland in 2006-2008 for the EVI study were analysed using Chi-Square test, GLM and Logistic Reg…
Who are the Showroomers? Socio-Demographic Factors Behind the Showrooming Behavior on Mobile Devices
2022
This quantitative study focuses on socio-demographic variables and their associations with different forms of showrooming behavior. The purpose of this study is to find which consumer groups based on age, gender, and income level are demographically the most probable showroomers, and how much each of these variables explain showrooming. The data used is a structured online survey from 1,028 Finnish omnichannel consumers aged between 18 and 75 years. We compare the means of demographic groups’ shares on different aspects of showrooming, and then use partial least squares structural equation modeling with confirmatory factor analysis to see how much each of the variables explain showrooming. …
In Search of Determinants of Time-Discounting in Monetary Choices : Personal Characteristics Matter Only a Little
2022
Time-discounting in monetary choices is determined by aspects related to the reward, contextual factors and characteristics of a person. In the present study, we used three datasets (Ndata1 = 419; Ndata2 = 485; Ndata3 = 240) to examine how well personal characteristics (sociodemographic, financial situation, self-control, cognitive abilities, negative experiencing, and trustfulness) predict time-discounting in both hypothetical and real reward scenarios. The results of the regression analyses indicate that the characteristics of a person only explain a small proportion of the variance in time-discounting (R2 ranged from .10 to .19). The only substantive predictors of time-discounting in mon…
Surface poling in lithium niobate waveguide creates efficient wavelength conversion
2004
Used with red or IR emitting laser diodes, nonlinear crystals for frequency doubling can result in a small blue emitting laser that is a viable alternative to gallium nitride-based laser diodes.