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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Entwicklung eines Anreicherungsverfahrens von Metallen aus Abwasserproben mit isotachophoretischer Endbestimmung

Leinert, Bernd. January 2001 (has links) (PDF)
Darmstadt, Techn. Universiẗat, Diss., 2001.
2

"Moi simple amateur" : Johann Heinrich Merck und der naturwissenschaftliche /

Federhofer, Marie-Theres. January 2001 (has links)
Th. Doct.--Trømso Universität, 2000. / Notes bibliogr. Index.
3

Johann Heinrich Merck als Kritiker

Ludewig, Maria, January 1930 (has links)
Thesis. / "Literatuverzeichnis": p. V. "Verzeichnis der Kritischen Schriften Mercks": p. 44-84.
4

Stanovení tenzidů v půdě odebrané z požářišť / Determination of surfactants in soil taken from fireplaces

Svobodová, Barbora January 2011 (has links)
The diploma thesis is focused on surfactants as compounds of fire fighting foams. Fire fighting foams have several characteristics including foaming, aquatic toxicity and biodegradability, which cause the environmental impact. This diploma thesis deals with the contamination of the soil by the large amount of the extinguishing water. The experimental part of the diploma thesis describes the determination of surfactants by the mobile analysis and the measurement of the methylene blue index.
5

From Out of the Shell

Vice President Research, Office of the 12 1900 (has links)
A new era of pain management could be on the horizon. How Terry Snutch turned snail venom into a multi-million dollar painkiller.
6

Rediseño y mejoramiento de procesos de gestión y provisión de bienes y servicios en una Empresa Química Farmacéutica

González Reyes, Felipe Arturo January 2017 (has links)
Ingeniero Civil Industrial / El siguiente trabajo de título plantea propuestas de rediseño y mejoras a los procesos de gestión y provisión de bienes y servicios de la empresa Merck S.A Chile. Esta organización, líder en los mercados de química y farmacia, busca la diferenciación mediante la calidad no sólo de sus productos, sino también de su servicio. La empresa presenta niveles de cumplimiento por debajo de los estándares deseados, lo que es contrario a sus principios estratégicos y representa un potencial riesgo de cara a al cliente y su satisfacción, con los potenciales problemas que eso trae (reclamos e incluso multas), además de provocar indirectamente una potencial baja en sus ventas. Dado que las posibles causas de este incumplimiento de la promesa al cliente pueden implicar deficiencias en la gestión interna de la empresa, se plantea como objetivo general del trabajo rediseñar y mejorar los procesos involucrados en la gestión y provisión de los bienes que transa la organización (para este caso la división de química), siendo necesario un análisis exhaustivo de la situación actual. Los ejes del trabajo realizado se sustentan en las disciplinas de gestión de procesos, control de gestión y rediseño de procesos, desde donde se extrae la metodología utilizada para este trabajo; el rediseño de procesos mediante el uso de patrones. El diagnóstico de la situación actual permite determinar que los procesos de la empresa se asemejan a la estructura general de los patrones recomendados, pero presentan mayores falencias en actividades relacionadas a la gestión y el intercambio y uso de información. Respecto del análisis del problema específico, se determinó que los niveles de cumplimiento de los productos dependen principalmente de su tipo de planificación y los procesos que enfrentan. Los cambios y mejoras propuestas se sustentan en las variables de anticipación, coordinación y mantención del estado del proceso, y buscan mejorar las entradas y salidas de insumos de información de los procesos junto a su control y seguimiento. Las propuestas tienen un beneficio potencial de entre 4% a 5% en los niveles de cumplimiento de la empresa. Se concluye que los objetivos del trabajo de memoria fueron alcanzados, considerando además que los beneficios de las propuestas tienen un carácter tanto cualitativo como cuantitativo, siendo este último análisis una aproximación estimada del impacto en indicadores de cumplimiento. / 06/10/2022
7

‘n Optimale nitraat (NO3-) konsentrasie reeks om stikstoftoedieningshoeveelhede op aartappels (Solanum tuberosum L.) te voorspel (Afrikaans)

Fouche, David Schalk 18 November 2008 (has links)
AFRIKAANS: Die vraag onstaan of insette by aartappelproduksie deurentyds ekonomies optimaal gebruik word. Hierdie vraag word al hoe meer deur produsente gevra, veral waar die prysknyptang al hoe sterker gevoel word. Uit ‘n opbrengs oogpunt was stikstof nog altyd ‘n baie belangrike inset. Verliese aan opbrengste kan egter baie groot wees as stikstof ondoelmatig bespaar word. Om optimum stikstoftoedienings te kwantifiseer bly problematies. Die stikstofinhoud van die grond kan gemeet word, maar in hierdie studie is bewys dat die inligting uit hierdie ontledings dikwels misleidend en kan sinvolle aanbevelings nie altyd daarvolgens gemaak word nie. Aan die ander kant, kan die aartappelplant as indikator gebruik word. Die afgelope dertig jaar was baie aandag aan petioolsapekstraksie reg oor die wéreld gegee. Meeste navorsers versap die petiool en gebruik duur laboratorium toerusting om die NO3--konsentrasie te bepaal en maak dan daaruit afleidings. Met hedendaagse tegnologiese ontwikkelings, het vinniger ontledingstegnieke beskikbaar geword. Die Reflectoquant (Merck) is ‘n draagbare instrument wat gebruik word om die NO3--konsentrasie in die aartappelpetioolsap direk te meet. Met kalibrasie-proewe wat deur Omnia gedoen was, is ‘n optimale NO3--konsentrasie reeks (OPTI-reeks) opgestel waarmee stikstof bo-bemestings geskeduleer kon word. Die bepaalde OPTI-reeks is oor twee persele getoets. Die twee persele het verskil in grond tekstuur en ligging. Die Delmas perseel het ‘n hoër klei-inhoud gehad as die Bronkhorstspruit perseel. By die Bronkhorstspruit perseel het verskille tussen die behandelings gouer na vore gekom. Die persele wat laer vlakke van stikstof bemes was, en eerste stikstof bemes is het die laagste NO3--konsentrasie lesings gehad. By die Delmas perseel het hierdie tendens nie herhaal nie. In van die lesingtye het die laer stikstofbemestingsbehandelings hoër ontledings gehad. NO3--konsentrasie lesings, soos vermeld is in die meeste literatuur, het afgeneem oor tyd en gedui op ‘n verdunnings-effek van NO3--konsentrasie in die aartappelplant. Die verdunnings-effek kan toegeskryf word aan die fisiese verdunning van NO3- oor ‘n groter wordende plante, knolle en die gebruik van die NO3- in plantmetaboliese aktiwiteite. Opbrengste en bakkwaliteit van die onderskeie behandelings, was nie verlaag deur die OPTI-reeks te gebruik nie. As in ag geneem word dat ten minste, 45 kg ha-1 stikstof bespaar kon word deur gebruik te maak van die OPTI-reeks, is die metode ‘n baie kragtige ontledingstegniek om stikstof doelmatig te skeduleer. Stikstof sal nie die beperkende faktor in produksie wees, indien hierdie tegniek te gebruik word nie. ENGLISH: The question arises whether inputs are used optimally in an economical way for potato production. This is something that is asked more and more by producers. Nitrogen plays a dominating role in determining yield. Yield losses will be considerable if nitrogen is saved in an unnecessary way. To quantify optimum nitrogen applications can be difficult. Determining the nitrogen content of the soil can be one option, but as was shown in this thesis, this method can lead to incorrect nitrogen applications. The potato plant itself can be used as an indicator for nitrogen applications. For the past thirty years, a lot of emphasis has been placed on petiole sap analyses. Petioles were liquified and then expensive laboratory equipment were used to determine the NO3--concentration, whereafter the recommendations for nitrogen application were made. Analyses are made easier today with modern technological methods and equipment. Direct measurement of the NO3--concentrations in the potato petiole are possible by using the Reflectoquant (of Merck). Omnia Fertilizers conducted many experiments to determine an optimal NO3--concentration range (OPTI-range) to schedule nitrogen applications. In this study the OPTI-range was tested at two sites. The two sites differed in soil texture and district. The Delmas site has a higher clay percentage than the Bronkhorstpruit site. Quicker reactions on the treatments were found at the Bronkhorstspruit site. The plots that received lower nitrogen treatments, were fertilized first and had the lowest NO3--concentrations in the sap. This tendency was not replicated at the Delmas site. The lower nitrogen treatment plots sometimes had higher NO3--concentrations than the higher nitrogen treatments. NO3--concentration readings, as mentioned in most literature, declined over time and is explained by the diluting effect of nitrates in the plant. Not only is there an increase in the potato plants above ground growth, but tuber growth also constitute a big proportion of the biomass at the end of the growth period. Nitrogen is used in all these processes, which contribute to the diluting effect. Yield and tuber quality were not lowered by applying the OPTI-range. The OPTI-range is a good method to manage nitrogen requirements of the potato plant. At least 45 kg ha-1 nitrogen could be saved by using the OPTI-range. Therefore this is a powerful method to determine nitrogen scheduling. Nitrogen will not be the limiting factor in potato fertilization if the OPTI-range is used. / Dissertation (MSc(Agric))--University of Pretoria, 2010. / Plant Production and Soil Science / unrestricted
8

Mephistopheles - Merck; ein Vergleich

Slawson, Richard M. 01 June 1966 (has links)
Johann Heinrich Merck’s life and works, his novelettes, short stories, fables, essays, critical reviews and letters lend themselves to a recognition of parallels between him and Goethe's Mephistopheles - parallels in attitudes and viewpoints, parallels in manners of expression and of handling other people, parallels in their perception of the world around them, and even parallels in their fate. One looks in vain, however, for a serious comparison of these two figures, even though it is well known that many people believe Merck served as the model for Goethe's Mephistopheles. Literary historians and interpreters have discussed the pro and cons of this theory, but no one has yet made a detailed comparison. This thesis [written in German] attempts to fill this void.
9

Strategic marketing planning of the pharmaceutical industry in the People's Republic of China.

January 1993 (has links)
by Ma Pui Yin, Flora. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1993. / Includes bibliographical references (leaf 62). / Chapter I. --- INTRODUCTION / The Company Background --- p.1 / The Appeal of PRC --- p.3 / Scope and Objectives --- p.5 / Structure of the Paper --- p.5 / Chapter II. --- METHODOLOGY / Michael Porter's Model --- p.7 / Evaluation of Porter's Model --- p.8 / Lessons from Case Studies --- p.14 / Chapter III. --- INDUSTRY ANALYSIS / Intensity of Rivalry Among Existing Competitors --- p.15 / Threat of New Entrants --- p.21 / Threat of Substitutes --- p.32 / Bargaining Power of Buyers --- p.33 / Bargaining Power of Suppliers --- p.35 / Summary --- p.35 / Chapter IV. --- COMPETITIVE STRATEGY / Entry Strategy --- p.38 / Portfolio Strategy --- p.41 / Targeting Strategy --- p.44 / Alliance Strategy --- p.46 / Chapter V. --- CONCLUSION --- p.49 / APPENDIX --- p.53 / REFERENCES --- p.62

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