Sökning: "Times long past"

Visar resultat 1 - 5 av 50 avhandlingar innehållade orden Times long past.

1. 1. On the road to climate neutral Swedish transportation: Energy system modelling to support the transition at national, regional, and local levels

   Författare :Jonas Forsberg; Anna Krook-Riekkola; Andrea Toffolo; Åsa Lindman; Hannah E. Daly; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy transition; Energy system modelling; TIMES-City; TIMES-Sweden; Transportation; Decarbonisation; Climate mitigation; Energiteknik; Energy Engineering;

   Sammanfattning : Transportation is a critical pillar of modern society. Over the past decades, growth in mobility of people and goods have been both enabled by and dependent upon fossil fuels. Strong action is needed to break this dependence in order to reduce CO2. LÄS MER

3. 2. Changing Landscapes and Persistent Places : An Exploration of the Bjäre Peninsula

   Författare :Jenny Nord; Arkeologi; []
   Nyckelord :HUMANIORA; HUMANITIES; European landscape convention; Bronze Age landscape; landscape archaeology; historic landscape characterisation; place and space; landscape memories; rock-carvings; cupmarks; mortuary monuments; burial mounds; burial cairns; stonesettings; communication; chronology; management issues; cultural biography; intangible values; long term stability; long term change;

   Sammanfattning : Changing Landscapes and Persistent Places is a study of the cultural landscape on the Bjäre peninsula in northwest Skåne. The many Bronze Age remains that give the landscape its distinctive character are the starting point for an attempt to increase our understanding of the historical depth of today’s landscape. LÄS MER

4. 3. Divergence, admixture and continuity in the human past : Demographic inference using ancient and modern genomes

   Författare :James McKenna; Mattias Jakobsson; Per Sjödin; Ida Moltke; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Human evolution; population genetics; ancient genomes; population continuity; divergence; Biology with Specialisation in Human Evolution and Genetics; Biologi med inriktning mot människans evolution och genetik;

   Sammanfattning : Demographic forces shaping the genetic variation we observe today can include population divergences, admixture events and continuity through time. The advancement of high-throughput sequencing technologies, together with developments in molecular and bio-informatics methods, mean the number of ancient genomes available for inference has risen steeply. LÄS MER

5. 4. Long-term Environmental Problems, Economic Measures and Physical Indicators

   Författare :Christian Azar; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stability analysis; discounting; environmental debt; sustainability; intergenerational; weight factors; population dynamics; the greenhouse effect; economics; indicators;

   Sammanfattning : This thesis consists of five papers and an introduction dealing with various aspects of the use of environmental resources. In both Paper I, The marginal cost of CO2 emissions, and Paper II, Discounting and distributional considerations in the context of global warming, we analyse the economics of the greenhouse effect. LÄS MER

7. 5. Acidification trends in Swedish lakes : an assessment of past water chemistry conditions using lake sediments

   Författare :Tom Korsman; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Palaeolimnology; acidification history; alkalization; acid deposition; land-use; lake sediments; near infrared spectroscopy; diatoms; multivariate calibration; Sweden;

   Sammanfattning : This thesis presents temporal perspectives of lake acidification in Sweden. Sediment records have been used to study timing, trends and causes of acidification, and two different techniques for assessing past lake-water acidity are presented. LÄS MER