Sök:

Sökresultat:

42 Uppsatser om Inhibition - Sida 1 av 3

Koncentrisk hämning och stimulans av bakterietillväxt i agarkulturer

The aim of this study is to elucidate factors that effect growth of Sarcina lutea and Bacillus subtilis, exposed to the growth inhibitor SDS (Sodiumdodecylsulfat). Agar diffusion experiments revealed repeated, concentric zones of Inhibition and stimulation upon exposure to Sodiumdodecylsulphate or to Amoxicillin. Temperature, nutrient concentration and inhibitor concentration were controlled. Formation of successively repeated zones of Inhibition, stimulation, Inhibition and stimulation is discussed: ? The extension of the primary Inhibition zone is due to the concentration of applied Sodium dodecyl sulphate.? Immediately outside the primary Inhibition zone the bacteria have access to diffusing nutrients that have not been consumed in the primary inhabitation zone.? In zones of dense bacterial growth the bacteria may produce inhibiting substances, affecting growth of bacteria in adjacent zones.? In zones of dense bacterial growth the nutrients will soon become depleted, thus affecting bacteria in adjacent zones..

Arbetsminneskapacitet: relation till verbalt flöde och indirekt minne för inhiberat material

Processing information in complex everyday life recruites different abilities than limited storage capacity. Working memory, the central executive and Inhibition are constructs that have been used to describe this ability of adaptation. This paper investigates the connection between working memory capacity and performances in tasks closely associated to real life situations, i. e. verbal fluency tasks.

En psykometrisk utprövning och normering av Child Inhibition Scale

Hämning (Behavior Inhibition) tycks utgöra en riskfaktor för olika typer av ångestsyndrom. Child Inhibition Scale (CIS) är ett föräldraformulär som mäter hämning hos barn. Syftet med studien är att normera samt att psykometriskt utpröva den svenska versionen av CIS mot ett föräldraformulär som mäter generell ångest hos barn och ungdomar Multidimensional Anxiety Scale for Children ? Parent version (MASC-P). I studien ingår skolor från fem områden i Storstockholm.

Påverkar inhibitionsförmåga hur väl det prospektiva minnet fungerar : Studie av minne och exekutiva funktioner hos barn

Barn med funktionsnedsättningar har ofta problem i skolan men även i deras vardag på grund av att deras omgivning inte är ämnad för människor med någon typ av svårighet. Prospektivt minne är en viktig faktor i hur väl en person med funktionsnedsättning klarar av sin vardag. Tidigare studier visar även att det finns en koppling mellan den exekutiva funktionen Inhibition och prospektivt minne. Denna studie har i syfte att undersöka om det finns ett samband mellan den exekutiva funktionen Inhibition och prospektivt minne. Detta behövs för att få en större förståelse för vad som orsakar svårigheter i vardagen för personer med funktionsnedsättningar.

The screening for novel proteasome inhibitors as a treatment of cancer using IncuCyte FLR and fluorometric microculture cytotoxicity assay.

The problem of finding targeted medicine is a central problem in chemotherapy. From this point of view the ubiquitin-proteasome system is a highly promising object in the pharmaceutical approach. Proteasome plays a critical role in cellular protein degradation, cell cycle and apoptosis regulation.Proteasome inhibitors are substances blocking the actions of proteasome. Cancer cells are more sensitive to Inhibition of the ubiquitin-proteasome system than normal cells. Therefore proteasome inhibitors have the potential to be successfully used in the cancer treatment.The study aimed to test various substances to identify possible proteasome inhibitors with the IncuCyteTM FLR image system and fluorometric microculture cytotoxicity assay.

Inhiberat beteende hos prematura barn

Prematurfödda barn drabbas oftare av uppmärksamhetsstörningar, ångestproblem, isolering samt sociala problem och färdighetsbrister än fullgångna barn. Uppsatsens syfte är dels att undersöka om en grupp prematurafödda beter sig mer inhiberat än fullgångna, dels undersöka sambandet mellan inhibering och överbeskydd, då tidigare studier visat på en samvariation mellan ett överbeskyddande föräldraskap och beteendeinhibering. Gruppen på 20 prematurfödda barn (VLBW) och 20 kontroller bedömdes med sina mammor vid 3 och 24 månaders ålder med The Parent-Child Early Relational Assement. I 20-gruppen ingick 16 prematurfödda som även bedömdes i en större grupp (177 prematurfödda, 120 kontroller) vid 51/2 års ålder avseende självförtroende och blyghet. Resultaten visar på en signifikant huvudeffekt av prematurfödsel avseende inhiberat beteende vid 24 månader.

Personlighet, hälsobeteende och attityder till friskvård : Hos personal på Försäkringskassa i en medelstor stad i södra Sverige

Objectives. The aim of the present study was to examine the relationship between the personality variables Multidimensional Health Locus of Control (MHLC), Negativ affect and Social Inhibition (the D-personality), and health behavior and attitudes toward keep-fit measures.Methods. The participants in this study were 170 embloyees at a regional social insurance office in a midsize town in the south of Sweden. Scales concerning health behavior and attitudes toward keep-fit measures were constructed and the participants completed these scales as well as those of MHLC and D-personality.Results. Participants with strong beliefs that other people, such as doctors or family-members, are responsible for their health, showed a more positive attitude as to keep-fit measures than those with a belief that health is controlled by themselves.

Detection of interesting areas in images by using convexity and rotational symmetries

There are several methods avaliable to find areas of interest, but most fail at detecting such areas in cluttered scenes. In this paper two methods will be presented and tested in a qualitative perspective. The first is the darg operator, which is used to detect three dimensional convex or concave objects by calculating the derivative of the argument of the gradient in one direction of four rotated versions. The four versions are thereafter added together in their original orientation. A multi scale version is recommended to avoid the problem that the standard deviation of the Gaussians, combined with the derivatives, controls the scale of the object, which is detected.

Development of new food products with components active against Helicobacter pylori - with purpose to improve gastric health in humans

Gastric and intestinal disorders are common and costly human health problems worldwide. Helicobacter pylori are a gram-negative, pathogen bacteria and the most common cause of duodenal and gastric ulcer in the stomach the intestinal mucosa. Prolonged infection and colonization can lead to chronic gastritis and stomach cancer. H. pylori are present in the gastric and intestinal mucosa of half of the world population and a relation between infection and low socioeconomic status has been shown.

The significance of oxytocin in canine mammary tumours

Oxytocin is a hormone which plays a crucial role in many reproductive and behavioural functions. It affects many organs and the classical peripheral targets are the mammary glands during lactation and uterus during labour. Oxytocin receptors have recently been described in a variety of normal tissues and primary cell cultures, but also in neoplastic tissues and established neoplastic cell lines, as breast cancer cell lines. The signalling pathways and biological effects of the oxytocin/oxytocin receptor system seem to depend on species, type of tissue, physiological versus neoplastic state and receptor location within the cell membrane.The aim of this project was to find out if the cell proliferation in the canine mammary carcinoma cell line CMT-U27 was affected upon stimulation of oxytocin, and to investigate the presence of oxytocin receptors in these cells. The cell proliferation was examined by using an ELISA-kit, where the absorbance measured is relative to the amount of living cells.

Bristande mjölknedsläppning hos förstakalvare : en enkätstudie

Milk ejection in dairy cows can be inhibited if oxytocin is not released from the pituitary gland. The problem with Inhibition of the milk let down is not new, but has recently regained interest. It is observed during different types of emotional stress, for example when cows are moved to an unfamiliar environment, during oestrus, changing from suckling to machine milking or when being milked for the first time. The aim of the study was to examine the extent of cows with disturbed milk ejection in Sweden. A survey was sent out to 1000 dairy farmers in order to collect data about herd size, housing systems and routines at calving and milking.

Effekter av befintliga och eventuella framtida läkemedelsbehandlingar på morbiditet och mortalitet hos patienter med hjärtsvikt.

Background:  Heart failure is a multidimensional phenomenon with high mortality. Heart failure is treated with angiotensin converting enzyme (ACE) - inhibitors or angiotensin receptor blockers (ARBs) that counteract neurohormonal stimuli that occur in heart failure, as well as providing vessel dilatation, which reduces symptoms and the need for hospitalization and increases survival. Despite this, only about 50% of heart failure patients survive 6 years after diagnosis with drug therapy, and as heart failure is increasing globally, due to improved care and treatment and increasing life expectancy of the population, there is a great need for new drugs such as LCZ696 that acts by dual Inhibition of the renin - angiotensin - aldosterone system and neprilysin Inhibition.Objective: The aim of this literature study was to evaluate the efficacy of current treatment and possible future treatments on mortality and morbidity in heart failure patients.Results: The examined articles show that treatment with ACE inhibitors in patients with symptomatic heart failure reduces the risk of total mortality by 16% over 3.5 years, reduces all-cause mortality or hospitalization due to heart failure with NNT (number needed to treat) = 10.4 over 3.5 years and increases median survival by 9.2 months over 12.1 years in patients with asymptomatic heart failure. Treatments with high-dose ACE inhibitors reduce mortality and hospitalization because of cardiovascular causes and hospitalizations from any cause by NNT = 30 over 3 years. Beta-blockers reduce sudden death and total mortality and cardiac death or non - fatal myocardial infarction with NNT = 38 and NNT = 23, respectively, over 12 months.

Företagshybridkapital i Sverige: Möjligheten att få både skattesköld och klassning som eget kapital enligt svensk rätt

The new Swedish Companies Act allows Swedish companies to issue two instruments that were previously prohibited: mandatory convertibles and participating debentures. The aim of the thesis is to conduct a cross sectional study of Swedish corporate hybrid securities, especially in the light of the new Companies Act. The cross sectional study also includes areas such as credit rating, accounting and tax. The thesis concludes that it is possible, under Swedish law, to issue corporate hybrid securities that qualify for both high equity credit and tax deductible interest payments. The use of certain hybrid provisions are, however, restrained by Swedish company law.

The RECK gene and invasive cancer development : the significance of RECK in angiogenesis and inhibition of matrix metalloproteinases

The RECK gene is a relatively new discovered gene with important implications for cancer research. The research has been primarily concentrated on the human gene with the ultimate aim to identify the invasive characteristics. Up regulated RECK is linked to significantly prolonged survival rates in patients with severe forms of malignancies. RECK is normally expressed in all cells of the body and has an important role in the balance between destructive and constructive features of the extracellular matrix. The RECK protein is a membrane-bound glycoprotein that inhibit matrix metalloproteinases which has the function of breaking down the ECM. There is a significant correlation between RECK gene expression and the formation of new vessels, presumably via the mediation of VEGF which is an important and powerful inducer of angiogenesis.

Improvements in milking management through imitation of calf behaviour

Approximately 20% of the milk within the udder of a cow is stored in the cistern and immediately available for milk removal, while activation of the milk ejection reflex is required for removing the remaining milk stored in the alveolar compartment. The aim of this literature review is to describe, evaluate and consider implications of the three different suckling activities that the calf displays during a suckling bout. In terms of milking, these phases are represented by pre-stimulation, stimulation during milking and post-stimulation. Pre-stimulation is commonly performed in order to induce the milk ejection reflex, whereby the hormone oxytocin is released and the alveoli in the secretory tissue are contracted. Time requirements regarding pre-stimulation must be considered in relation to lactation stage and milking interval.

1 Nästa sida ->