Search results for "groc"
showing 10 items of 50 documents
STUDIO QUANTOMECCANICO STRUTTURALE E CONFORMAZIONALE DELL'INSETTICIDA ROTENONE
2008
Crystal structure ofN′-diphenylmethylidene-5-methyl-1H-pyrazole-3-carbohydrazide
2015
In the title compound, C18H16N4O, the planes of the phenyl rings are approximately perpendicular to each other [dihedral angle = 78.07 (8)°] and form dihedral angles of 56.43 (8) and 24.59 (8)° with the pyrazole ring. In the crystal, molecules are linked by N—H...O hydrogen bonds to form one-dimensional chains parallel to the [010] direction.
Zmiany środowiska przyrodniczego i ich wpływ na populację zwierząt
2016
Development of ultrasound-assisted digestion methods for the determination of toxic element concentrations in ash samples by ICP-OES
2011
The present thesis introduces several ultrasound-assisted digestion methods developed for the determination of toxic element concentrations in ash samples by inductively coupled plasma optical emission spectrometry (ICP-OES). Ultrasound-assisted digestion is a quite new technique used for sample pre-treatment purposes, especially in difficult sample matrixes. Elements determined are As, Ba, Co, Cr, Cu, Ni, Pb, Sb, Sr, V, and Zn. Most of the elements determined exist at a trace or ultra trace level in ashes and most are potential risks in the environment or human body even at low concentrations. Most of the selected elements can be determined directly by ICP-OES, but for the determination of…
Crystalline forms of selected agrochemical actives : design and synthesis of cocrystals
2012
The research described in this disseration covers the crystal form screening of two analogous agrochemical actives, thiophanate-methyl and thiophanate-ethyl, as well as the discovery of seven 4-hydroxybenzoic acid cocrystals of selected agrochemical actives. Polymorphs are crystal forms of a compound that have the same composition, but a different arrangement of molecules. Cocrystals are molecular crystals composed of two or more compounds, and refer mainly to crystals which contain compounds that are solids at standard conditions. Solvates are forms that have molecules of solvent in the crystal lattice and these include hydrates, in which the solvent is water. The crystal forms of organic …
STRATEGIES FOR A MORE SUSTAINABLE HOME FOOD DELIVERY SYSTEM: THE CASE STUDY OF DELIVEROO
2020
The aim of this work is to investigate the main enabling factors facilitating the diffusion of the emobility in the food delivery sector through the analysis of the Deliveroo case study. Deliveroo s.r.l. has been chosen for two main reasons. First, the growing importance of the company in the food delivery market, with an annual turnover increase of +120 million euros in 2017, becoming one of the major national players for food delivery. Second, the company recently adopted a strategy to support the diffusion of electric mobility for home delivery through the subscription of specific agreements.
Online grocery shopping before and during the COVID-19 pandemic: A meta-analytical review.
2021
The COVID-19 pandemic has forced people to limit their physical interactions, which has led to explosive growth in online grocery shopping. However, there is no clear consensus in the retailing literature on whether consumers prefer to buy groceries online. The objective of this current study is to synthesize research about online grocery shopping published before and during the COVID-19 pandemic and to develop a conceptual framework about online grocery purchase intentions and their determinants, the mediation effects of consumers’ attitudes, the moderating effects of COVID-19, and control variables. The meta-analysis presents data derived from 50 independent samples with a sample size of …
Exploring positive online customer experience formation : a study of food waste shoppers
2022
This qualitative study investigates the formation of positive online customer experiences in the context of online grocery shopping. This study analyzes customers’ written descriptions of the causes of their positive experiences when visiting an online store. Data were collected with an online survey of 581 respondents. The case company is a Finnish online retailer, Fiksuruoka Ltd. Fiksuruoka’s business idea is to sell food waste; its product range consists of surplus groceries that are in danger of being disposed of. The findings show that four main themes contribute positively to the online customer experience. Positive customer experiences were explained by factors related to 1) the shop…
Weed vegetation of cereal crops in Tajikistan (Pamir Alai Mts., Middle Asia)
2013
The paper presents results of investigations of weed vegetation conducted in crop fields, in Tajikistan (Middle Asia) - one of the world cradles of the weed flora. The study has been based on 299 phytosociological relevés obtained in various geobotanical regions of the country in 2009-2012. In the examined vegetation patches 469 vascular plant species were noted. Many of the recorded species are widespread weeds. However, there were also some rare and endemics taxa (e.g. Prangos pabularia, P. saraw-schanica and Thlaspidium thlaspi) observed in the sample plots. The collected material presents probably, the majority of the variability among the weed communities of crop cultivations in the Mi…
Introducció al monogràfic «El rol de l’ensenyament gramatical en l’aprenentatge de llengües: pràctiques reflexives, tasques comunicatives i material …
2022
Introducció al monogràfic «El rol de l’ensenyament gramatical en l’aprenentatge de llengües: pràctiques reflexives, tasques comunicatives i material d’intervenció», coordinat per Xavier Fontich, María-José García Folgado i Carmen Rodríguez Gonzalo.