Essays about: "Long term variability"

Showing result 1 - 5 of 60 essays containing the words Long term variability.

  1. 1. Thermo-effector responses to a 5-day high-intensity cold-acclimation procedure

    University essay from KTH/Omgivningsfysiologi

    Author : Frederick Wilkins; [2020]
    Keywords : Hypothermia Acclimation procedure thermo effector response;

    Abstract : Long-term, repeated exposures to cold might lead to cold adaptation. The study examined, in a small homogeneous group of non-acclimatised men, the inter-individual response to a short-term, high-intensity cold acclimation regimen. READ MORE

  2. 2. Restoration strategies in boreal forests : prescribed burning and gap cutting effects on plant diversity and community composition

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Clara Espinosa Del Alba; [2020]
    Keywords : restoration ecology; boreal forest; fire; gap cutting; biodiversity; voluntary set-asides; vascular plants; bryophytes; forest management;

    Abstract : The boreal biome is one of the largest in the world and their forests have been widely exploited for centuries. Consequently, it has suffered ecological simplification and loss of biodiversity. Under these circumstances passive conservation is no longer enough and active restoration techniques need to be tested. READ MORE

  3. 3. A remote-sensing approach to studying drought resistance in Swedish old-growth and production forests

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Julika Wolf; [2020]
    Keywords : Physical Geography and Ecosystem Analysis; drought impacts; old-growth forests; forest management; remote sensing; Earth and Environmental Sciences;

    Abstract : Boreal forest ecosystems are predicted to experience hotter and drier summers due to climate change, leading to more frequently reduced soil water availability and an increased risk of droughts, as was already the case in Northern Europe during the severe summer drought of 2018. Prolonged water stress in forest ecosystems can lead to impacts ranging from reduced photosynthesis to forest dieback. READ MORE

  4. 4. Investigating Sand Dune Location, Orientation and Geomorphometry Through GEOBIA-Based Mapping: A Case Study in Northern Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Melanie Stammler; [2020]
    Keywords : sand dunes; geomorphological mapping; object-based image analysis; landscape development; sanddyner; geomorfologisk kartläggning; geografisk objektbaserad bildanalys; landskapsutveckling;

    Abstract : Climate change has repeatedly been framed as the defining issue of the Anthropocene and with the Arctic changing at unpreceded speed need is high for a profound understanding of the Northern Swedish landscape. Northern Swedish aeolian sand dunes have been impacted by climatic changes throughout time. READ MORE

  5. 5. Deep Learning Approach for Extracting Heart Rate Variability from a Photoplethysmographic Signal

    University essay from Högskolan Kristianstad/Fakulteten för naturvetenskap; Högskolan Kristianstad/Fakulteten för naturvetenskap

    Author : Gudny Björk Odinsdottir; Jesper Larsson; [2020]
    Keywords : Heart rate variability; photoplethysmograpic signal; human activity recognition; deep learning approach; recurrent neural network; long short-term memory network;

    Abstract : Photoplethysmography (PPG) is a method to detect blood volume changes in every heartbeat. The peaks in the PPG signal corresponds to the electrical impulses sent by the heart. The duration between each heartbeat varies, and these variances are better known as heart rate variability (HRV). READ MORE