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Dissertation
Optical Amplification in Disordered Waveguiding Systems
(2020)
Bei dem Phänomen der verstärkten Emission in ungeordneten Systemen handelt es sich um ein wiederentdecktes und über die letzten Jahrzehnte stark debattiertes Themengebiet in der Literatur. Diese Dissertation soll hierzu zwei experimentelle Ansätze bieten, wobei beide in der Lage sind, bei optischer Anregung entweder Random Lasing oder Verstärkte Spontane Emission zu zeigen.
In dieser Arbeit wird thermisch induzierte Faltenbildung (Wrinklebildung) als neuer Ansatz zur Herstellung von Streuzentren in wellenleitenden ...
Working paper
Die Politisch-Administrative Elite der BRD von 1949 bis 1990
(2021)
Diese Zeitreihe wurde im Rahmen des Forschungsprojektes „Neue Eliten – etabliertes Personal? (Dis-)Kontinuitäten deutscher Ministerien in Systemtransformationen“ am Fachgebiet Public Management der Universität Kassel erstellt. Die hier präsentierten Tabellen und Abbildungen fassen die Ergebnisse deskriptiver Auswertungen der im Forschungsprojekt erhobenen Daten zur Politisch-Administrativen Elite in der BRD bis 1990 zusammen und veranschaulichen die Häufigkeitsverteilungen ausgewählter Variablen im Zeitverlauf. Die ...
Aufsatz
Determination of the factors affecting the Amount of food waste generated from households in Turkey
(2021-02-12)
Aim of this study is to put forward and discuss the analysis results of various factors, on the creation of food waste from households.Online survey application was used with 1488 individuals participated in the study 32.9% of the participants stated that they form 0-1 kg of food waste.The main reasons for food waste are;mouldy food etc.,food left in the refrigerator for too long and the expiration date of food.There was a negative significant association between the amount of food waste in households and age, living ...
Aufsatz
Climate change impact on economic and irrigation requirements for sugarcane crop in Egypt
(2021-02-12)
Availability of irrigation water is considered one of the major challenges faced by Egypt during current time and will be more difficult in the future with the limited water resources and linearly increase of population. The current study investigates irrigation demand for sugarcane cultivation areas in the Middle and Upper Egypt Governorates (Menia, Asyut, Sohag, Qena, Luxor and Aswan) during current time and under RCPs scenarios. The current data was collected from 1971 till 2000. The RCP data were collected for ...
Konferenzveröffentlichung
Using Smart Personal Assistants for Online Learning Activities: What benefits can we expect?
(GITO Verlag, 2020)
With the increasing popularity of massive open online courses, universities are able to reach a wider audience without restriction and for comparably low costs. However, in these learning environments, educators are hardly able to offer individual support to their learners. According to learning theory, the lack of individual support in online learning environments can considerably limit learning success. In our paper, we argue that new emerging Smart Personal Assistants (SPAs) have the capabilities to address this ...
Teil eines Buches
Marcadores discursivos, estructuras discursivas y tradiciones del habla: el caso de pues en las Cartas marruecas de Cadalso
(Iberoamericana Vervuert, 2020)
En géneros textuales distintos, los marcadores discursivos se utilizan con frecuencias diferentes y con perfiles de función diferentes. La presente contribución pretende hacer un análisis lingüístico-filológico del uso de un marcador discursivo ejemplar, pues, en las Cartas marruecas de Cadalso con el objetivo de discutir la hipótesis de que en ellas los marcadores discursivos son un elemento constitutivo de las tradiciones discursivas presentes en la obra. Además, se pretende mostrar que estos marcadores discursivos ...
Aufsatz
Research on factors affecting consumer decision on purchasing organic agricultural products in Danang, Vietnam
(2021-02-23)
The study analyses the factors that influence consumer decisions on purchasing organic agricultural products in Danang. By synthesizing previous research, the authors establish Ordinal Logistic Regression (OLR) through survey questionnaires for 300 consumers in Danang in March 2019. The empirical model shows that there are eight factors, which have significantly positive impacts on the consumer decisions to purchase organic agricultural products, including: (i) the quality of products; (ii) trademarks, product labels; ...
Aufsatz
The impact of corruption on food security from a macro perspective
(2021-02-18)
Despite the recent developments food security is one of the common problems of humanity. In order to eliminate this problem, various initiatives are taken in the fields of political and international relations backed by many academic studies that are conducted to scrutinize the dynamics of the problem and inspire the policies to be implemented. This study aims at providing macro solutions to the problem through the study of the relationship between food security and corruption in view of variables such as unemployment, ...
Aufsatz
Determinants of organic food purchases intention: the application of an extended theory of planned behaviour
(2021-02-18)
This investigated the application of the extended theory of planned behavior (TPB) to determine Iranian students’ intention to purchase organic food products. The statistical population comprised all students in the field of agriculture sciences at Mohaghegh Ardabili University, Ardabil, Iran. Data were collected from 340 participants. The research instrument was a questionnaire developed through a comprehensive literature study. The content validity of the instrument was ascertained by a panel of university professors ...
Dissertation
Die koordinationschemische Ambivalenz zweier mesoionischer Triazoliumaminide
(2020-05)
Die vorliegende Arbeit beleuchtet die Koordinationschemie zweier Mesoionen, die in Abhängigkeit vom angebotenen Zentralatom als N-heterocyclische Carben- (NHC-) oder Amido-Liganden fungieren. Durch Tautomerisierung der Triazoliumaminid-Form zum korrespondierenden Amino-NHC ermöglichen das seit über einem Jahrhundert bekannte analytische Reagenz »Nitron« (1) sowie dessen in dieser Arbeit entwickeltes Alkyl-Homolog 1-tert-Butyl-4-methyl-1,2,4-triazol-4-ium-3-tert-butylaminid (2) einen bequemen Zugang zur Chemie der ...