Search results for "LST"
showing 10 items of 1402 documents
Pētera Stučkas Latvijas Valsts universitātē aizstāvētās disertācijas, 1945-1963: bibliogrāfisks rādītājs
1966
Teksts paralēli latviešu un krievu valodā
HCV infection is a risk factor for gallstone disease in liver cirrhosis: an Italian epidemiological survey
2007
We assessed the prevalence of gallbladder disease (i.e. gallstones plus cholecystectomy) among patients with liver disease and its association with the severity and aetiology of hepatic injury. Subjects, referred to 79 Italian hospitals, were enrolled in a 6-month period. The independent effect of the severity and aetiology of liver disease on gallstone disease prevalence was assessed by multiple logistic regression analysis. Overall, 4867 subjects tested anti-hepatitis C virus (HCV) positive alone, 839 were hepatitis B virus surface antigen (HBsAg) alone, and 652 had an excessive alcohol intake. The prevalence of gallstone disease was 23.3% in anti-HCV-positive patients, 12.4% in HBsAg pos…
Mazo un vidējo uzņēmumu attīstība Zemgalē
2015
Bakalaura darba tēma ir Mazo un vidējo uzņēmumu attīstība Zemgalē. MVU Latvijā sastāda 99% no visiem uzņēmumiem un tiem ir ļoti būtiska nozīme tautsaimniecībā, jo tie tieši ietekmē bezdarba līmeni valstī un iedzīvotāju labklājību. Turklāt mazie un vidējie uzņēmumi rada lielāko daļu iekšzemes kopprodukta. Reģistrēto uzņēmu skaits ir strauji audzis kopš 2010. gada, taču liela daļa jauno uzņēmumu savu darbību pārtrauc pirmajos trīs gados, jo nākas saskarties ar dažādām attīstības problēmām, kā piemēram, nodokļu slogs, konkurence, mazs pieprasījums, kvalificētu darbinieku trūkums u. c. Attīstītākā uzņēmējdarbības vide ir Rīgā, kur arī ir reģistrēti vairāk kā puse Latvijas uzņēmumu. Sarežģītāk i…
Major results from the first plasma campaign of the Wendelstein 7-X stellarator
2017
After completing the main construction phase of Wendelstein 7-X (W7-X) and successfully commissioning the device, first plasma operation started at the end of 2015. Integral commissioning of plasma start-up and operation using electron cyclotron resonance heating (ECRH) and an extensive set of plasma diagnostics have been completed, allowing initial physics studies during the first operational campaign. Both in helium and hydrogen, plasma breakdown was easily achieved. Gaining experience with plasma vessel conditioning, discharge lengths could be extended gradually. Eventually, discharges lasted up to 6 s, reaching an injected energy of 4 MJ, which is twice the limit originally agreed for t…
Ķīnas maigās varas izpausmes Latvijā, Vācijā un Somijā kopš 2010.gada
2020
“Ķīnas maigās varas izpausmes Latvijā, Vācijā un Somijā kopš 2010.gada” ir pētījums, kurā tiek aplūkots maigās varas koncepts, tā izpratne rietumu valstīs un Ķīnā. Papildus tiek noteiktas kopīgās un atšķirīgās šīs izpratnes iezīmes, kā arī tiek analizētas Ķīnas maigās varas izpausmes atbilstoši tās izpratnei par maigo varu. Pētījuma pamatā izmantota kvalitatīvā pētniecības metode, kas ietver akadēmiskās literatūras izpēti, starptautisko dokumentu un pētnieciskās literatūras satura analīzi, un tas sastāv gan no teorētiskās, gan empīriskās daļas, kur pēdējā tiek aplūkota faktiski veiktā, ar maigo varu saistītā, rīcība, izmantojot dažādu mediju rīcībā esošo informāciju, kā arī oficiālās preses…
Baltijas valstu pretošanās Krievijas skarbajai varai 2014.-2021. gadā
2022
Baltijas valstis – Latvija, Lietuva, Igaunija, ikdienā saskarās ar Krievijas skarbo varu, kas manipulē ar sabiedrības uzskatiem un ietekmē demokrātijas stabilitāti. Ir veikti vairāki pētnieciskie darbi par to, ka Krievija izmanto skarbo varu vairākās kaimiņvalstīs, tai skaitā Baltijas valstīs, bet nav pieejama informācija par to, kā tieši Baltijas valstis, izmantojot valstī pieejamos instrumentus, pretojas Krievijas skarbajai varai. Sekojoši šī darba mērķis ir izskatīt atsevišķi katras Baltijas valsts pretošanos Krievijas skarbajai varai, laika posmā no 2014.gada līdz 2021.gadam. Tiek izvēlēts 2014.-2021.gada laika posms, jo autore uzskata, ka pēc Krimas okupācijas 2014.gadā, saasinājās Kri…
Engagement as a Driver of Growth of Online Health Forums: Observational Study
2017
Background: The emerging research on nurturing the growth of online communities posits that it is in part attributed to network effects, wherein every increase in the volume of user-generated content increases the value of the community in the eyes of its potential new members. The recently introduced metric engagement capacity offers a means of quantitatively assessing the ability of online platform users to engage each other into generating content; meanwhile, the quantity engagement value is useful for quantifying communication-based platform use. If the claim that higher engagement leads to accelerated growth holds true for online health forums (OHFs), then engagement tracking should be…
Activity and immunohistochemistry of DT-diaphorase in hamster and human kidney tumours.
1994
We have studied the biochemical and immunohistochemical changes of DT-diaphorase in diethylstilbestrol (DES)-induced hamster kidney tumours and human biopsies from normal kidneys and renal clear cell carcinoma. The activities of primary and secondary antioxidants in these hamster and human tissues are also reported. DT-diaphorase is decreased in the different subcellular fractions of hamster and human tissues. In hamster kidney the activities of the one-electron quinone reductases show a nearly two-fold increase. Immunohistochemical findings confirm the decrease in DT-diaphorase in hamster and human tissues. This image is of special interest in the case of nephroblastoma (Wilms' tumour), si…
The levels of quinone reductases, superoxide dismutase and glutathione-related enzymatic activities in diethylstilbestrol-induced carcinogenesis in t…
1990
The level of quinone oxidoreductases (microsomal and cytosolic DT-diaphorase, NADPH-cytochrome P450 reductase and NADH-cytochrome b5 reductase), superoxide dismutase and glutathione-related enzymatic activities in diethylstilbestrol (DES)-induced carcinogenesis in kidney from Syrian golden hamsters are presented. Animals that exhibited two different stages of DES-induced carcinogenesis in kidney--pre- and neoplastic lesions and tumorous lesions (after 6 and 8 months of continuous exposure to DES respectively)--were studied in comparison to kidneys from control animals. A dramatic decrease in microsomal and cytosolic DT-diaphorase activities (13.6 and 37.8% of controls), as well as in glutat…
Role and outcomes of laparoscopic cholecystectomy in the elderly.
2014
Abstract Introduction : Laparoscopic cholecystectomy is the standard of treatment for gallstones disease and acute colecystitis. The prevalence of this disease increases with age and the population is aging in industrialized countries. So, in this study we report our experience in the treatment of gallstone disease in elderly patients, particularly analyzing the outcomes of laparoscopic approach. Methods : Between January 2010 and May 2014 we performed a total of 1227 cholecystectomies. In this retrospective study age group was the primary independent variable: 351 patients were 65–79 years of age and 65 were 80 years of age or older. Results : Only 65 patients (5.3%) of all population had …