Search results for "needle"

showing 2 items of 172 documents

Microneedle-Based Delivery: An Overview of Current Applications and Trends

2020

Microneedle arrays (MNA) are considered as one of the most promising resources to achieve systemic effects by transdermal delivery of drugs. They are designed as a minimally invasive, painless system which can bypass the stratum corneum, overcoming the potential drawbacks of subcutaneous injections and other transdermal delivery systems such as chemical enhancers, nano and microparticles, or physical treatments. As a trendy field in pharmaceutical and biomedical research, its applications are constantly evolving, even though they are based on very well-established techniques. The number of molecules administered by MNA are also increasing, with insulin and vaccines administration being the …

skinmicroneedlesComputer sciencePharmaceutical Sciencelcsh:RS1-441NanotechnologyReview02 engineering and technologyMicroneedle arrayStratum corneum030226 pharmacology & pharmacylcsh:Pharmacy and materia medica03 medical and health sciences0302 clinical medicineSDG 3 - Good Health and Well-beingStratum corneummedicineTransdermal deliverystratum corneumTransdermalSkinmicroneedle arrayBuccal administration021001 nanoscience & nanotechnologymedicine.anatomical_structure/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_beingtransdermal delivery/dk/atira/pure/subjectarea/asjc/3000/30030210 nano-technologyMicroneedlesPharmaceutics
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Parastā kadiķa Juniperus communis L. skujas anatomiskā uzbūve

2018

Parastais kadiķis ir nozīmīga kailsēkļu suga Latvijā. Lai noteiktu kadiķa skuju anatomiskās uzbūves atšķirības dažādu laikapstākļu ietekmē, izvēlējās parametrus, kuriem noteikt izmēru atšķirības. Paraugus ievāca trīs parauglaukumos: Valmierā, Kolkā, Sakas pagastā. Katrā parauglaukumā no 30 ievāktajām skujām piecām skujām pagatavoja anatomiskos griezumus. Griezumiem veica izpēti nosakot parametru izmērus. Katrai paraugu ievākšanas vietai tuvākajai meteoroloģiskajai stacijai ievāca datus par vidējo gaisa temperatūru, nokrišņu daudzumu, gaisa mitrumu. Darbā noskaidroja, ka septiņiem no 14 skuju anatomisko uzbūvi raksturojošajiem parametriem ir statistiski būtiskas atšķirības starp parauglaukum…

skujas uzbūveneedle structureParastais kadiķisCommon juniperBioloģijalaikapstākļi
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