Search results for "TJ"

Tiocianātjonu masas koncentrācijas noteikšana smēķētāju un nesmēķētāju siekalās

2018

Tiocianātjonu masas koncentrācijas noteikšana smēķētāju un nesmēķētāju siekalās. Trokša V., darba vadītāja docente, Dr. chem. Osīte A. Bakalaura darbs. 27 lappuses, 6 attēli, 8 tabulas, 12 literatūras avoti, 2 pielikumi. Latviešu valodā. Literatūras apskatā aprakstīts tiocianātjonu veidošanās mehānisms cilvēka organismā, tiocianātjonu alternatīvās uzņemšanas iespējas un to noteikšanas iespējas. Aprakstīta arī kadmija toksicitāte, uzņemšanas iespējas un tā noteikšanas iespējas. Darba eksperimentālajā daļā veikta tiocianātjonu koncentrācijas noteikšana, izmantojot argentometrisku tiocianātjonu titrēšanu un spektrofotometrisku tiocianātjonu noteikšanu, veidojot [Fe(SCN)]2+ kompleksu, kā arī ve…

Lung on a Chip Development from Off-Stoichiometry Thiol–Ene Polymer

2021

Institute of Solid-State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2. Finally, we would like to thank Biol. Kaspars Tars from Latvian Biomedical research and study center for giving us the opportunity to participate in this consortium and contribute to Latvian scientists’ effort in response to the COVID-19 pandemic.

New Challenges for Sustainable Organizations in Light of Agenda 2030 for Sustainability

2021

Sustainability is one of humanity’s most daunting issues at present. Increasing popula- tion, escalation of anthropogenic activities, industrialization, modern agricultural practices that pollute water, air, and soil around the world, and ever-increasing greenhouse gas emissions mean that sustainability is now in doubt [1]. In response to these critical concerns, the world has come up with several initiatives including Agenda 2030. Agenda 2030 is a commitment to eradicate poverty and achieve sustainable development worldwide, ensuring that no one is left behind by 2030. Its adoption was a landmark achievement, providing a shared vision towards sustainable development for all. Its 17 Sustain…

Phenomenological perspectives on self-care in aging.

2013

Olle SöderhamnCenter for Caring Research- Southern Norway, Faculty of Health and Sport Sciences, University of Agder, Grimstad, NorwayAbstract: Self-care is a central concept in health care and may be considered as a means to maintain, restore, and improve one's health and well-being. When performed effectively, self-care contributes not only to human functioning but also to human structural integrity and human development (ie, to a dynamic and holistic state of health). Self-care as a clinical concept is relevant for health care professionals, and it should be meaningful to investigate it at a philosophical level and to further elaborate upon this concept. The aim of this …

Alternatīvā enerģija un tās izmantošanas iespējas Latvijā

2021

Darba tēma alternatīvā enerģija un tās izmantošanas iespējas Latvijā, tās ekonomiskais izdevīgums, nākotnes perspektīvās un problēmas tās tālākai attīstībai izvēlēta, lai analizētu atjaunojamo resursu izmantošanu, konkrēti Latvijā, tās priekšrocības salīdzinājuma ar citu energoresursu izmantošanas iespējām. Darbā tiek analizēta pašreizējā situācija un tiek sniegti priekšlikumi nākotnes attīstībai. Darba mērķis - Analizēt alternatīvās enerģijas veidus, pielietojumu un ekonomisko efektivitāti Latvijā, veikt salīdzināšanu ar ES un izdarīt secinājumus par alternatīvās enerģijas izmantošanu Latvijā, kā arī sniegt priekšlikumus problēmu risinājumiem. Pētījuma rezultātā tika noskaidroti nozares ek…

Affinity Sensors for the Diagnosis of COVID-19

2021

The coronavirus disease 2019 (COVID-19) outbreak caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was proclaimed a global pandemic in March 2020. Reducing the dissemination rate, in particular by tracking the infected people and their contacts, is the main instrument against infection spreading. Therefore, the creation and implementation of fast, reliable and responsive methods suitable for the diagnosis of COVID-19 are required. These needs can be fulfilled using affinity sensors, which differ in applied detection methods and markers that are generating analytical signals. Recently, nucleic acid hybridization, antigen-antibody interaction, and change of reactive oxyge…

Kalmbergin kartasto R V : List 5

1855

Closure properties for integral problems driven by regulated functions via convergence results

2018

Abstract In this paper we give necessary and sufficient conditions for the convergence of Kurzweil–Stieltjes integrals with respect to regulated functions, using the notion of asymptotical equiintegrability. One thus generalizes several well-known convergence theorems. As applications, we provide existence and closure results for integral problems driven by regulated functions, both in single- and set-valued cases. In the particular setting of bounded variation functions driving the equations, we get features of the solution set of measure integrals problems.

Effects of a brief pre‑admission telephone reminder on no‑show and dropout rates in substance use disorder treatment: a quasi‑experimental study

2022

Abstract Background Appointment no-show and early dropout from treatment represent major challenges in outpatient substance use disorder treatment, adversely affecting clinical outcomes and health care productivity. In this quasi-experimental study, we examined how a brief reminder intervention for new patients before their first appointment affected treatment participation and retention. No-shows (not attending any sessions) and dropouts (discontinuation of initiated treatment because of three consecutively missed appointments) were compared between a period with pre-admission telephone calls (intervention) and a period without such reminders (non-intervention). Methods Participants were a…

Archaeogenetics and Landscape Dynamics in Sicily during the Holocene: A Review

2021

The Mediterranean islands and their population history are of considerable importance to the interpretation of the population history of Europe as a whole. In this context, Sicily, because of its geographic position, represents a bridge between Africa, the Near East, and Europe that led to the stratification of settlements and admixture events. The genetic analysis of extant and ancient human samples has tried to reconstruct the population dynamics associated with the cultural and demographic changes that took place during the prehistory and history of Sicily. In turn, genetic, demographic and cultural changes need to be understood in the context of the environmental changes that took place…