Search results for " TIPS"
showing 10 items of 23 documents
CRYOPRESERVATION OF PEACH SHOOT TIPS BY ENCAPSULATION DEHYDRATION
2011
Tonometers and infectious risk: myth or reality? Efficacy of different disinfection regimens on tonometer tips
2006
Purpose To evaluate the adequacy of common disinfection regimens for disposable tonometer tips and assess if disinfection of reusable prisms or the use of disposable tips is preferable. Methods We used disposable tonometer tips, using the same material and tip diameter of standard Goldmann tonometer prism. Strains of Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis and Candida albicans were tested according to the European standard guidelines for disinfectants test. Antimicrobial effectiveness of the following disinfection practices has been assessed: dry wipe, Minuten wipes (Alpros), soaking in 3% hydrogen peroxide, 0.5% benzalkonium chloride, and 0.5% Pantasepts for 1, 5, …
Carbohydrate metabolism of vegetative and reproductive sinks in the late-maturing peach cultivar ‘Encore’
1999
Activities of NAD(+)-dependent sorbitol dehydrogenase (SDH), sorbitol oxidase (SOX), sucrose synthase (SS), acid invertase (AI), and neutral invertase (NI) in 'Encore' peach (Prunus persica L.) fruits and developing shoot tips were assayed during the growing season to determine whether carbohydrate metabolizing enzymes could serve as indicators of sink strength. In fruit flesh, SS activity was detected during Stage I of growth, when cells were actively dividing, and SDH activity was detected during Stage III, when cells were actively enlarging. Acid invertase activity was detected during Stage I and showed a closer correlation with relative increase in fruit weight during the growing season…
Imaging-guided interventions modulating portal venous flow: Evidence and controversies
2021
Portal hypertension is defined by an increase in the portosystemic venous gradient. In most cases, increased resistance to portal blood flow is the initial cause of elevated portal pressure. More than 90% of cases of portal hypertension are estimated to be due to advanced chronic liver disease or cirrhosis. Transjugular intrahepatic portosystemic shunts, a non-pharmacological treatment for portal hypertension, involve the placement of a stent between the portal vein and the hepatic vein or inferior vena cava which helps bypass hepatic resistance. Portal hypertension may also be a result of extrahepatic portal vein thrombosis or compression. In these cases, percutaneous portal vein recanalis…
Kuņģa audzēja histopatoloģisko un klīnisko rādītāju saistība ar pirmsvēža stāvokļiem peritumorālajos audos
2017
Pasaulē kuņģa vēzis ir piektā biežākā ļaundabīgā saslimšana, taču ierindojas otrajā vietā nāves iemeslu ziņā ļaundabīgo saslimšanu starpā. Austrumeiropa, t.sk. Baltijas valstis un Latvija pieder augstās saslimstības reģioniem pasaulē. Kuņģa un pirmsvēža stāvokļu diagnozes zelta standarts ir endoskopiskā izmeklēšana ar sekojošu audu histopatoloģisko novērtējumu. Precīzam histopatoloģiskajam novērtējumam ir liela nozīme arī ārstēšanas stratēģijas izvēlē un prognozes izvērtēšanā. Tādejādi, mūsu pētījuma mērķis ir novērtēt kuņģa audzēja histopatoloģisko, tajā skaita pirmsvēža stāvokļu, un klīnisko rādītāju korelāciju un to nozīmi slimības prognozē. Pētījumā tika iekļauti 273 pacienti, kuriem ti…
Virsraksti plašsaziņas līdzekļos pragmatiskā aspektā
2020
Maģistra darba “Virsraksti plašsaziņas līdzekļos pragmatiskā aspektā” mērķis ir konstatēt virsrakstu attieksmes ar tekstu un konstatēt, kā atšķiras virsraksti pēc struktūras dažādos medijos. Darba teorētiskā daļa sastāv no atziņām par publicistikas stilu, pragmatiku, komunikatīvajiem un teikumu tipiem. Teikumu strukturālie tipi un izteikumu komunikatīvie tipi virsrakstos un to raksturīgās iezīmes analizētas ar aprakstošo metodi, bet ar salīdzinošo analīzi konstatētas atšķirības un līdzības starp dažādu mediju virsrakstiem. Ar anketēšanu noskaidrots lasītāju viedoklis. Pētījuma gaitā noskaidrots, ka būtiskas atšķirības starp medijiem netiek konstatētas, bet ir novērojamas atsevišķas iezīmes,…
Promocijas darbs
2011
Elektroniskā versija nesatur pielikumus
Polymeric scaffolds prepared via thermally induced phase separation: Tuning of structure and morphology
2008
Scaffolds suitable for tissue engineering applications like dermal reconstruction were prepared by Thermally Induced Phase Separation (TIPS) starting from a ternary solution PLLA/dioxane/water. The experimental protocol consisted of three consecutive steps, a first quench from the homogeneous solution to an appropriate demixing temperature (within the metastable region), a holding stage for a given residence time, and a final quench from the demixing temperature to a low temperature (within the unstable region). A large variety of morphologies, in terms of average pore size and interconnection, were obtained upon modifying the demixing time and temperature, owing to the interplay of nucleat…
Powder metallurgy processing and deformation characteristics of bulk multimodal nickel
2014
cited By 7; International audience; Spark plasma sintering was used to process bulk nickel samples from a blend of three powder types. The resulting multimodal microstructure was made of coarse (average size ∼ 135 μm) spherical microcrystalline entities (the core) surrounded by a fine-grained matrix (average grain size ∼ 1.5 μm) or a thick rim (the shell) distinguishable from the matrix. Tensile tests revealed yield strength of ∼ 470 MPa that was accompanied by limited ductility (∼ 2.8% plastic strain). Microstructure observation after testing showed debonding at interfaces between the matrix and the coarse entities, but in many instances, shallow dimples within the rim were observed indica…
Comparison of Two Solid-Phase Extraction (SPE) Methods for the Identification and Quantification of Porcine Retinal Protein Markers by LC-MS/MS
2018
Proper sample preparation protocols represent a critical step for liquid chromatography-mass spectrometry (LC-MS)-based proteomic study designs and influence the speed, performance and automation of high-throughput data acquisition. The main objective of this study was to compare two commercial solid-phase extraction (SPE)-based sample preparation protocols (comprising SOLAµ