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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.
11

Development of Electroacoustic Sensors for Biomolecular Interaction Analysis

Anderson, Henrik January 2009 (has links)
Biomolecular interaction analysis to determine the kinetics and affinity between interacting partners is important for the fundamental understanding of biology, as well as for the development of new pharmaceutical substances. A quartz crystal microbalance instrument suitable for kinetics and affinity analyses of interaction events was developed. The functionality of the sensor system was demonstrated by development of an assay for relative affinity determination of lectin-carbohydrate interactions. Sensor surfaces allowing for effective immobilization of one interacting partner is a key functionality of a biosensor. Here, three different surfaces and immobilization methods were studied. First, optimized preparation conditions for sensor surfaces based on carboxyl-terminated self assembled monolayers were developed and were demonstrated to provide highly functional biosensor surfaces with low non-specific binding. Second, a method allowing for immobilization of very acidic biomolecules based on the use of an electric field was developed and evaluated. The electric field made it possible to immobilize the highly acidic C-peptide on a carboxylated surface. Third, a method for antibody immobilization on a carboxyl surface was optimized and the influence of immobilization pH on the immobilization level and antigen binding capacity was thoroughly assessed. The method showed high reproducibility for a set of antibodies and allowed for antibody immobilization also at low pH. Three broadly different strategies to increase the sensitivity of electroacoustic sensors were explored. A QCM sensor with small resonator electrodes and reduced flow cell dimensions was demonstrated to improve the mass transport rate to the sensor surface. The use of polymers on QCM sensor surfaces to enhance the sensor response was shown to increase the response of an antibody-antigen model system more than ten-fold. Moreover, the application of high frequency thin film bulk acoustic resonators for biosensing was evaluated with respect to sensing range from the surface. The linear detection range of the thin film resonator was determined to be more than sufficient for biosensor applications involving, for instance, antibody-antigen interactions. Finally, a setup for combined frequency and resistance measurements was developed and was found to provide time resolved data suitable for kinetics determination. / wisenet
12

Rozvoj hudebních činností v předškolním vzdělávání / Development of music activities in preschool education

SEBEROVÁ, Eva January 2017 (has links)
The thesis deals with the support and development of the music activities for preschool children at kindergarten. Its aim is to build a complete preview showing the current concept of the music class at kindergarten and the positive music influence on the whole individual in the field of physics, psychics and sociality. On the one hand, it calls attention to the risky and inconvenient pedagogical methods in relation to children and their talents in general and on the other hand, it shows the way of creating a positive music relationship for the future living.
13

Hodnocení kardiorespirační zdatnosti sportovců a obézních pacientů pomocí spiroergometrie (Oxycon) / Evaluation of cardiorespiratory capacity of sportsmen and obese patients measured by spiroergometry (Oxycon)

Kieu Thi, Thanh Hai January 2011 (has links)
The objective of this thesis is to evaluate the cardiorespiratory fitness of sportsmen and obese patients through the medium of spiroergometry on cycloergometer by virtue of the analyzer of exhaled gas (Oxycon). Its advantage is that the measurement takes place "on- line", therefore it allows prompt monitoring of measured spiroergometric parameters directly on screen of computer that forms part of the analyzer. The spiroergometry is a method of determining the cardiorespiratory fitness through the medium of analyzer of exhaled gas in order to state the physical fitness. For statistical evaluation of differences in values of spiroergometric indicators between these two observed groups of patients I used the Student's unpaired T-test. The theoretical part contains an introduction into the issue of obesity, obesity epidemiology, history, aetiology and health risks of this disease, classification, diagnostics, treatment, and recommendations and advices for patients. Furthermore it contains terms as sports medicine, influence of motional activity on human organism, cardiorespiratory fitness, spiroergometry methodology, and spiroergometric parameters. The practical part contains a description of spiroergometric measuring process at the Institute of Sports Medicine at the 1st Faculty of Medicine of the...
14

The dynamics of the G protein-coupled neuropeptide Y2 receptor in monounsaturated membranes investigated by solid-state NMR spectroscopy

Thomas, Lars, Kahr, Julian, Schmidt, Peter, Krug, Ulrike, Scheidt, Holger A., Huster, Daniel January 2015 (has links)
In contrast to the static snapshots provided by protein crystallography, G protein-coupled receptors constitute a group of proteins with highly dynamic properties, which are required in the receptors’ function as signaling molecule. Here, the human neuropeptide Y2 receptor was reconstituted into a model membrane composed of monounsaturated phospholipids and solid-state NMR was used to characterize its dynamics. Qualitative static 15N NMR spectra and quantitative determination of 1H-13C order parameters through measurement of the 1H-13C dipolar couplings of the CH, CH2 and CH3 groups revealed axially symmetric motions of the whole molecule in the membrane and molecular fluctuations of varying amplitude from all molecular segments. The molecular order parameters (Sbackbone = 0.59-0.67, SCH2 = 0.41-0.51 and SCH3 = 0.22) obtained in directly polarized 13C NMR experiments demonstrate that the Y2 receptor is highly mobile in the native-like membrane. Interestingly, according to these results the receptor was found to be slightly more rigid in the membranes formed by the monounsaturated phospholipids than by saturated phospholipids as investigated previously. This could be caused by an increased chain length of the monounsaturated lipids, which may result in a higher helical content of the receptor. Furthermore, the incorporation of cholesterol, phosphatidylethanolamine, or negatively charged phosphatidylserine into the membrane did not have a significant influence on the molecular mobility of the Y2 receptor.
15

Preparation and Characterization of Multifunctional Stationary Phases for Multimode Separations

Wijekoon, Asanka 24 February 2010 (has links)
No description available.
16

Charakterizace mikropohybu a jeho vliv na systematické posuvy frekvence kvadrupólového přechodu iontu vápníku zachyceného v Paulově pasti / Characterization of micro-motion and its influence on systematic frequency shifts of quadrupole transition of Calcium ion trapped in Paul trap

Vadlejch, Daniel January 2020 (has links)
This thesis deals with the analysis of micromotion of a single charged calcium ion trapped inside the linear Paul's ion trap and the influence of residual micromotion on the systematic frequency shifts of the clock transition of calcium ion. The fundamental properties of the motion of an ion confined within linear Paul's ion trap are shown in general using a theoretical description. The micromotion component of the overall motion is especially emphasized. A model expressing micromotion in the axial direction of the trap is introduced on the basis of the results of the numerical calculation of electric fields inside the trap. The model is compared to the reality experimentally. Then, the photon-correlation method of detection of micromotion is introduced and subsequently used to minimize and to estimate a measure of residual micromotion in all spacial directions. According to the achievable measure of residual micromotion, the systematic frequency shifts caused by this micromotion are estimated. It can be seen that we are able to reach uncertainties of the relative frequency shifts due to micromotion below 10^20. We expect that uncertainty of total motional systematic frequency shift is in our case limited by thermal motion.
17

心理傷害之刑法定位 / The position of mental harm in criminal law

林記弘 Unknown Date (has links)
傷害罪的研究,在我國學說實務上對於特定的議題可能有所分歧,但原則上已然有一定的研究成果與結論,對於身體或是健康的定義,或者是所涵攝的範圍等等。然而隨著社會發展,以及對於個人身體期待有更為完整的保護,除了生理機能上的傷害以外,對於心理、精神、或是情緒上的傷害,是否能夠被劃歸於傷害罪的保護範圍,也應有其討論空間。 本文試圖由保護法益出發,討論心理傷害在身體法益的角度下其存在的可能,如果可能存在,則在現行的條文下應該做如何的解釋。這並不是一個純粹學術的討論,而是一個貼近社會每個個體的議題,每個社會個體在社會中的活動,都可能造成他人心理或是情緒上的不愉快;相反的,也可能因為他人的行為而有心理或情緒上的不愉快。這些事實每天重複的發生在我們周遭,重點在於是否有注意到這些心理傷害存在,以及如何給予心理傷害評價。 肯認心理傷害的概念是存在後,如果要作更細緻的分析,就必須先定義心理傷害的概念,去尋找在哪些情況之下,會成為具有法律意義的心理傷害,而為傷害罪之保護範圍。將其具體化,也就是心理傷害的傷害結果是必須符合一些標準的,如果欠缺標準,則會使心理傷害的概念浮動,而可能過度擴張其範圍,故若該結果欠缺實質的情緒傷害、或是未使被害人的反應非屬正常範圍等,則不認為其為心理傷害,而可能是一種負面的情緒反應而已。 心理傷害因為其本質較為特別,是何種行為導致心理傷害結果的存在,也就是行為與結果之間的因果關係並不甚清楚。其理由在於,在心理傷害的情形,特定行為是否確實造成心理傷害結果並不是客觀明顯可見的,是以一個心理傷害結果的存在,是由A行為或是B行為所導致,或是由A、B數行為一同造成,除非有明確的事實證據可以作為依據,否則因果關係的建立上,都只能透過人類經驗的累積作為參考依據,而無法使用條件理論來作為判斷標準,是以在此情形下,透過人類經驗而建立因果關係的假設因果關係理論,在論理上似乎會是比較實用也比較合理的標準。 在因果關係的確立後,同時必須考量該結果是否可以歸責於行為人,如果該行為在社會上是被允許的,則即使該行為可能有造成他人心理傷害的風險,該風險就應該被容許而會是容許風險。而在社會中因為有親疏程度不同之人際關係,如果人與人之間的關係較為緊密,在社會共識上會提高容許風險的門檻,而擴大容許風險的範圍,在結論上,就會是該行為雖然造成心理傷害結果,但是因為該行為本身帶有傷害結果的風險是社會所已經認識且允許的,是以即使該風險確實實現,社會也不會予以處罰。 關鍵字:傷害、心理傷害、負面情緒、情緒傷害、實質情緒傷害、正常範圍、人類經驗、假設因果關係、容許風險 / The researches of assault and battery may exist difference in specific issues between theories and practice, but in general, the researches have got some results and had conclusions, like the definition of body or health, or the area which assault and battery including. However, due to the developing of the society and the more desire to protect individual body, except the harm to the physical functions, if the harm to mind or emotion could be classified as the range of assault and battery may be worth discussing as well. This thesis tries to start from the legal interest(Rechtgut), to talk about the possibility of mental injury included in the legal interest of body. If the legal interest of body include the mental harm, then how to explain the articles which are currently in effect. This is not a pure academic discuss, but a issue which close to every individual in society. The activities of individuals in society may cause mental or emotional unpleasantness. On the contrary, mental or emotional unpleasantness might be caused by other’s behaviors too. Those facts around us happen repeatedly everyday and the importance is whether we noticed the mental harm exist or not, and how to appraisal it. After confirming the notion of mental harm or injury exist, if try to analyze more detailed, defining the mental harm notion is the first step we should take and looking for under what kind of situations the notion of mental harm will become meaningful in legal system. Specifically, which means the results of mental harm must conform with some standards. If lacking of standards, the notion of mental harm will be vague, and the result of the vagueness, it might broaden the range excessively. So if the results lack of substantial emotional harm, or didn’t make victims’ reactions out of normal range, then we don’t admit the result is a mental harm, but a negative emotion. Because mental harm has special quality, the question is which behavior leads to the results of mental harm, and the causation between behavior and result is not clear enough. The reason is that in the situation of mental harm, if the specific behaviors surly cause the result of mental harm can’t be discovered obviously and objectively. As the result, the existence of a result of mental harm is caused by behavior A or B, or is caused by A and B, except we have clear facts and proofs to be reference materials, or we only can apply the accumulation of human experience to the construction of causation and we can not use condition theory(Bedingunstheorie) as the standard to determine the causation. Thus, the theory of hypothesized causation constructs the causation through the human experience seems more practical and reasonable standard. When the causation have been constructed, after that, the question is that if the defendant should be blamed for the result should be considered as well. If the behavior is allowed in the society, then even if the behavior may bring about the risk of mental harm of the others, but the risk shall be allowed or endured and is an allowable risk(das erlaubte Risiko). And the relationships between people are not always as any others, if the relationship is closer, the common consensus of society will raise the line of allowable risk and broaden the range of allowable risk. In conclusion, although the behavior leads to the result of mental harm, the behavior companies the risk of the result of mental harm is recognized and allowed by society, so even the risk occur in deed, society will not punish the behavior. Key Word: assault, battery, harm, injury, emotional harm, mental harm, emotional injury, substantial emotional harm, normal range, causation, allowable risk

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