• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 116
  • 43
  • 12
  • 11
  • 9
  • 6
  • 4
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 2
  • 2
  • Tagged with
  • 247
  • 110
  • 84
  • 38
  • 38
  • 36
  • 35
  • 33
  • 30
  • 27
  • 24
  • 24
  • 20
  • 20
  • 19
  • 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.
91

Využití aktivizujícícíh výukových metod při výuce výchovy ke zdraví / Using of activating teaching methods in the teaching subject of Health Education

Malinová, Kamila January 2016 (has links)
TITLE: The using of activating teaching methods in the teaching subject of Health Education AUTHOR: Bc. Kamila Malinová, DiS. DEPARTMENT: Pedagogy Department SUPERVISOR: PaedDr. Eva Marádová, CSc. ABSTRACT: The diploma thesis deals with the use of activating teaching methods in health education lessons. In its theoretical part, the thesis defines the concept of the teaching method, draws attention to the function of teaching methods in class, and presents a classification of methods of individual authors while providing a deeper insight into the activating methods that are first introduced in the historical context and then attention is paid to their benefits as well as drawbacks, the positive contribution of these methods in the educational process and, last but not least, the activating teaching methods are compared with the traditional methods. Individual activating teaching methods are then examined in more detail. The conclusion of the theoretical part is dedicated to the integration of health education into the Framework Educational Programme for primary and lower secondary schools. The aim of the practical part is to identify what the limiting as well as the motivating factors are for teachers in using the activating teaching methods during health education classes with second grade pupils of Prague...
92

Aktivizace žáků ve výuce odborných předmětů na obchodní akademii / Students´ Activation in Economic Subjects at Business Academies

Klepačová, Klára January 2012 (has links)
The Master's Thesis deals with activating teaching methods and their application as a suitable tool for higher efficiency of education of economic subjects. There are mentioned main advantages of application of these methods in the education process. The analytical part is concerned with the results of the survey among students and teachers of a particular business academy. The aim of this survey was to find out to what extent the activation of students in the subject "Economy" is emphasized. The survey includes comparison of efficiency of traditional frontal education and education performed with use of activating teaching methods. Recommendations for improvement of education of subject "Economy" are stated in the conclusion.
93

Využití aktivizačních metod ve výuce přírodopisu na druhém stupni základních škol / Application of the Activating Teaching Methods in Biology at Lower Secondary Schools

Bugová, Tereza January 2020 (has links)
This thesis deals with activation teaching methods used during biology classes at lower secondary school. The thesis is divided into theoretical and practical part. The first part deals with curricular documents and its relationships to activation methods, to a goal of elementary education and to a goal of activation teaching and above all to a characteristics of individual activation methods. The second part describes a selected topic of food chains. At the beginning, there is an enumeration of selected food chains from eight different environments. Furthermore, a suggestion for a teaching method, which complements the list of food chains, is presented here, as well as drawings of images, which have been created specifically for the purpose of the thesis. As a component of the second part of the thesis, there is an evaluation of a form, which has been presented to children electronically, since the suggested teaching method has not been practicable as a consequence of closed schools in the second half of the school year due to the coronavirus epidemic. The goal of this thesis is to prepare and to test a selected teaching class on the topic of a food chain and drawings of images, which might serve as a teaching material for current as well as future teachers. KEYWORDS active learning, activation...
94

Aktivizační výukové metody se zaměřením na zoologii a ekologii vyšších obratlovců / Activating Teaching Methods Focused on Zoology and Ecology of Higher Vertebrates

Gotthardová, Magdaléna January 2020 (has links)
This diploma thesis deals with activating teaching methods used during Nature Science lessons on elementary schools with focus on higher vertebrates - reptiles, birds and mammals. This work is based on theoretical part which describes teaching methods leading to development of key competencies. Main part of this work includes particular activating tasks created by author of this thesis. These tasks lead to teaching oriented on students. KEYWORDS Didactics of Biology, Nature Science, activating methods, teaching, school
95

The Role of Activating Transcription Factor 3 as a Regulator of DNA-Damaging Chemotherapy Cytotoxicity

Hasim, Mohamed Shaad 29 November 2019 (has links)
DNA-damaging chemotherapeutics are a consistently employed for the treatment of cancer, and are regularly part of first-line combination therapeutic regimens. However, these regimens often display limited activity in cancers including of the lung and breast. Novel therapeutic strategies are urgently required. Understanding the molecular mechanisms regulating DNA-damaging chemotherapeutics activity will lead to such novel strategies. Activating transcription factor 3 (ATF3) is a stress inducible gene that plays a significant role in regulating cellular stress including DNA damage. This thesis investigates the role of ATF3 in mediating the cytotoxic effects of two commonly employed DNA-damaging chemotherapeutics, cisplatin and doxorubicin. This study also identifies other independent ATF3 inducing agents in potential novel combination therapeutic strategies. In this study, cell line models of cisplatin-resistance were generated independently from two non-small cell lung cancer (NSCLC) cell lines, Calu6 and H23. Full transcriptome RNA-sequencing analysis identified ATF3 as the most highly dysregulated apoptosis regulatory gene in the cisplatin-resistant compared to their respective parental cell lines following treatment with cisplatin. Further characterization identified cisplatin induced activation of JNK as the key regulator of ATF3 induction in these cell lines. Restoring JNK activity resulted in induced ATF3 expression and re-sensitization of the resistant cell lines to cisplatin treatment. FDA-approved 1200 compound library screens were employed to identify agents that can enhance cisplatin cytotoxicity as well as whose cytotoxicity was dependent on ATF3 expression. Vorinostat, an HDAC inhibitor, was identified in both screens and importantly displayed synergistic cytotoxicity in combination with cisplatin. In addition, ATF3 was also induced with treatments of the DNA damaging agent doxorubicin in these NSCLC cell lines including in the cisplatin resistant models. This work suggested a different mechanism of ATF3 induction by doxorubicin and the potential role of ATF3 in mediating doxorubicin cytotoxicity was further investigated in breast cancer cells. Doxorubicin robustly increased ATF3 expression in human breast cancer cell lines and tumor tissue ex-vivo. Loss of ATF3 in MEFs resulted in reduced sensitivity to doxorubicin treatment compared to wild-type MEFs. Employing the same library screen as above, compounds with ATF3 dependent mechanisms that could enhance doxorubicin cytotoxicity were identified. Vorinostat, as well as, the nucleoside analogues trifluridine and 6-mercaptopurine induced ATF3 expression and enhanced doxorubicin cytotoxicity. This study demonstrated that ATF3 plays an important role in mediating the cytotoxic effect of the DNA-damaging chemotherapeutics cisplatin and doxorubicin. It also provides rationale for ATF3 as a potential therapeutic target, and for the incorporation of ATF3 inducing agents in novel combination therapeutic strategies.
96

Genetic Ablation of the Platelet Activating Factor Receptor Does Not Impair Learning and Memory in Wild-Type Mice or Alter Amyloid Plaque Number in a Transgenic Model of Alzheimer’s Disease

Peshdary, Vian January 2012 (has links)
We have recently established that aberrant alkylacylglycerophosphocholine metabolism results in the increased tissue concentration of platelet activating factors (PAFs) in the temporal cortex of Alzheimer Disease (AD) patients and in TgCRND8 mice over-expressing mutant human amyloid precursor protein. PAF lipids activate a G-protein coupled receptor (PAFR) reported to be expressed by microglia and subsets of neurons in rat. It is not known whether this same expression pattern is recapitulated in mice however, as the expression has only been inferred by use of pharmacological PAFR antagonists, many of which impact on both PAFR-dependent and PAFR-independent signalling pathways. PAFR plays a role in long term potentiation (LTP) induction in rats. PAFR has also been implicated in behavioural indices of spatial learning and memory in rats. Contradictory reports using mice provide ambiguity regarding the role of PAFR in LTP induction in mice. To assess whether PAFR is expressed in murine neurons, I localized PAFR mRNA in wild-type C57BL/6 mice using PAFR KO mice as a negative control. I further showed that the loss of PAFR did not impair learning and memory although this assessment must be considered preliminary as the behavioural test employed was not optimized to detect changes in learning and memory of C57BL/6 mice over time adequately.Finally, I showed that the loss of PAFR in TgCRND8 mouse model of AD had no impact upon Aβ plaque number. My observations suggest that PAFR is restricted to microglial-like cells in mouse hippocampus and as such, it may not play a role in learning and memory.
97

Chronic Myocardial Infarction Induces Phenotypic and Functional Remodeling in the Guinea Pig Cardiac Plexus

Hardwick, Jean, Southerland, Elizabeth M., Ardell, Jeffrey L. 01 December 2008 (has links)
Chronic myocardial infarction (CMI) is associated with remodeling of the ventricle and evokes adaption in the cardiac neurohumoral control systems. To evaluate the remodeling of the intrinsic cardiac nervous system following myocardial infarction, the dorsal descending coronary artery was ligated in the guinea pig heart and the animals were allowed to recover for 7-9 wk. Thereafter, atrial neurons of the intrinsic cardiac plexus were isolated for electrophysiological and immunohistochemical analyses. Intracellular voltage recordings from intrinsic cardiac neurons demonstrated no significant changes in passive membrane properties or action potential configuration compared with age-matched controls and sham-operated animals. The intrinsic cardiac neurons from chronic infarcted hearts did demonstrate an increase in evoked action potential (AP) frequency (as determined by the number of APs produced with depolarizing stimuli) and an increase in responses to exogenously applied histamine compared with sham and age-matched controls. Conversely, pituitary adenylate cyclase-activating polypeptide (PACAP)-induced increases in intrinsic cardiac neuron-evoked AP frequency were similar between control and CMI animals. Immunohistochemical analysis demonstrated a threefold increase in percentage of neurons immunoreactive for neuronal nitric oxide synthase (NOS) in CMI animals compared with control and the additional expression of inducible NOS by some neurons, which was not evident in control animals. Finally, the density of mast cells within the intrinsic cardiac plexus was increased threefold in preparations from CMI animals. These results indicate that CMI induces a differential remodeling of intrinsic cardiac neurons and functional upregulation of neuronal responsiveness to specific neuromodulators.
98

Modulation of Nociceptive Transmission by Pituitary Adenylate Cyclase Activating Polypeptide in the Spinal Cord of the Mouse

Ohsawa, Masahiro, Brailoiu, G. Cristina, Shiraki, Maho, Dun, Nae J., Paul, Kirstein, Tseng, Leon F. 01 November 2002 (has links)
Superficial layers of the dorsal horn receive a dense plexus of nerve fibers immunoreactive to pituitary adenylate cyclase activating polypeptide (PACAP). In vivo experiments were conducted in the mice to evaluate the effects of PACAP-38, herein referred to as PACAP, PACAP receptor antagonist PACAP(6-38) and PACAP-antiserum on nociceptive behaviors induced by radiant heat, intrathecally administered N-methyl-D-aspartate (NMDA) or intraplantarly administered formalin. PACAP (0.05-0.5μg) dose-dependently decreased the paw-withdrawal latencies induced by thermal stimulation and enhanced the aversive licking and biting behaviors induced by intrathecally injected NMDA. Pretreatment with the PACAP receptor antagonist PACAP(6-38) (0.5-2μg) or PACAP-antiserum (1:500-2000 dilution) dose-dependently attenuated the second phase, but not the first phase, of nociceptive responses to formalin. Next, the effects of PACAP on NMDA- and kainate-induced currents evoked in single dorsal horn neurons were studied. Whole-cell patch recordings were made from superficial dorsal horn neurons of spinal cord slices from 14- to 20-day-old mice. PACAP at the concentrations of 100 and 200nM, which caused no significant change of holding currents, increased NMDA-but not kainate-induced currents in superficial dorsal horn neurons. Our results suggest that exogenously applied PACAP sensitizes the dorsal horn neurons to formalin stimulation, and facilitates NMDA receptor-mediated nociceptive response. As a corollary, PACAP, which may be released from primary afferent fibers potentiates nociceptive transmission to the dorsal horn by interacting primarily with NMDA receptors.
99

Regulation of Microvesicle Particle release in keratinocytes

Awoyemi, Azeezat Afolake 24 August 2018 (has links)
No description available.
100

Implication of mirna-149 in platelet-activating-factor-receptor-mediated effects on lung cancer growth and treatment efficacy

Chauhan, Shreepa J. 03 June 2020 (has links)
No description available.

Page generated in 0.0657 seconds