Botanical Garden

The Botanical Garden of the University of Latvia was founded in 1922. In the 15 hectare territory of the garden you can find greenhouses and outdoor collections with about 6000 different plants from the dunes of the Baltic sea, forests of Australia, jungle of the Amazon, mountains of Caucasus, deserts of Mexico and Far East representing different regions of the world

Baltic Journal of English Language, Literature and Culture, Vol.10

Kontorslokaler nyttjas generellt cirka 2500 av årets 8760 timmar. Ett vanligt problem med kontorslokaler är det termiska klimatet, antingen är det för varmt, för kallt, eller så drar det. Höga temperaturer, över ca 26°C, bidrar till trötthet, nedsatt koncentration och gör att luften känns mindre fräsch. Stora variationen av lasten mellan dag och nattetid kan också resultera i att lokalerna överventileras under nattetid och underventileras under dagtid. Syftet med examensarbetet var att undersöka och jämföra Ecoclimes komforttaks lösning med andra olika värme och kylsystem i kontorslokaler. Att undersöka vilka eventuella fördelar Ecoclimes komforttak har gällande komfort, kyla, ventilation och ur energisynpunkt. Simuleringsprogrammet IDA ICE har använts för att simulera komforten och rumstemperaturer för ett kontor och ett konferensrum i en byggnad placerad i centrala Umeå. Resultaten från simuleringar indikerar att Ecoclimes komforttak, sänker den operativa temperaturen och höjer komforten med en mindre andel missnöjda i sitt rum jämfört med andra system trots samma rumstemperatur. För att bedömma andelen missnöjda i ett rum har komfortindexet PMV(Predicted mean vote) och PPD(Predicted percentage dissatisfied) använts. Den höga passiva effekten bidrar också till mindre energianvändning av ventilationsfläktar ifall ett VAV-system med rumstempertaurreglering används. Vidare har en känslighetsanalys genomförts på komforttaken där det undersöks hur kyleffekten påverkar kyltider, temperatur och komfort. Känslighetsanalysen visar att en ökning eller minskning av kyleffekten med 10% påverkar resultaten mest under en mycket varm dag jämfört med en normalvarm. Skillnaden i komfort var dock liten, endast 0,2 procentenheter från grundfallet

Advanced Composites and Applications: Book of abstracts

The section ‘Advanced Composites and Applications’ was organized by the Institute for Mechanics of Materials of the University of Latvia (LU MMI) on 16.02.2023 as a part of the annual 81th scientific conference of the University of Latvia. It was organized remotely in Zoom. The official language of the section was English. The duration of the presentation was 10 minutes. The section was devoted to the discussion of the recent results within following topics: structure and properties of polymers and polymer-based composites, long-term properties, creep, and environmental ageing, composites for advanced applications, mechanical aspects of technology, and multifunctional properties

Baltijas Psiholoģijas žurnāls

Riin Seema, Anna Sircova. Mindfulness – a Time Perspective? Estonian Study ; Emīls Kālis, Līga Roķe, Indra Krūmiņa. Indicators of Creative Potential in Drawings: Proposing New Criteria for Assessment of Creative Potential with the Test for Creative Thinking – Drawing Production ; Ieva Urbanaviciute, Antanas Kairys, Inga Juodkune, Audrone Liniauskaite. The Lithuanian Version of the Global Motivation Scale: Testing Its Reliability and Factorial Validity ; Maruta Ludāne, Ieva Bite. Predictors of Cognitive Appraisal of Job Loss among the Unemployed Aged over 45 Years ; Per Eisele. Pooling Unshared Information: Comparing Computer-Mediated Group Discussion with Face-to-Face Group Discussion and Examining Differences between Writing and Talking during Interaction in Small Groups ; Anna Páchová. The Problematic Nature of Culture-Fair testing: Training Effect Differences among Czech and Roma Children ; Aleksandra Makarova, Madara Orlovska, Lāsma Katšena, Malgožata Raščevska. Internal Consistency and Factorial Validity of the Beliefs about Psychological Services [BAPS] Scale in Latvia ; Julija Vlasova, Neringa Grigutytė. Girls’ Emotional and Behavioral Problems in Early Adolescence: Differences between Pubertal Timing and Perceived Pubertal Timing ; Jelena Harlamova, Sandra Sebre. Relationships between Posttraumatic Negative Cognitions, Panic Attack and Posttraumatic Stress Symptom

Baltijas Psiholoģijas žurnāls

Riin Seema, Anna Sircova. Mindfulness – a Time Perspective? Estonian Study ; Emīls Kālis, Līga Roķe, Indra Krūmiņa. Indicators of Creative Potential in Drawings: Proposing New Criteria for Assessment of Creative Potential with the Test for Creative Thinking – Drawing Production ; Ieva Urbanaviciute, Antanas Kairys, Inga Juodkune, Audrone Liniauskaite. The Lithuanian Version of the Global Motivation Scale: Testing Its Reliability and Factorial Validity ; Maruta Ludāne, Ieva Bite. Predictors of Cognitive Appraisal of Job Loss among the Unemployed Aged over 45 Years ; Per Eisele. Pooling Unshared Information: Comparing Computer-Mediated Group Discussion with Face-to-Face Group Discussion and Examining Differences between Writing and Talking during Interaction in Small Groups ; Anna Páchová. The Problematic Nature of Culture-Fair testing: Training Effect Differences among Czech and Roma Children ; Aleksandra Makarova, Madara Orlovska, Lāsma Katšena, Malgožata Raščevska. Internal Consistency and Factorial Validity of the Beliefs about Psychological Services [BAPS] Scale in Latvia ; Julija Vlasova, Neringa Grigutytė. Girls’ Emotional and Behavioral Problems in Early Adolescence: Differences between Pubertal Timing and Perceived Pubertal Timing ; Jelena Harlamova, Sandra Sebre. Relationships between Posttraumatic Negative Cognitions, Panic Attack and Posttraumatic Stress Symptom

Linguistic Studies in Latvia

This issue of Humanities and Social Sciences: Latvia introduces a small part of research carried out in the Faculty of Humanities of the University of Latvia