Assessing the trend of changes in wetland under the effects of climate and human activity by the long term observations of Landsat (Conference Presentation)

2019 ◽  
Author(s):  
Zhijie Zhang ◽  
Liping Lei ◽  
Zhonghua He ◽  
Xiaofan Wang ◽  
Shaoyuan Yang ◽  
...  
Keyword(s):  
Human Activity

LONG-TERM VISION OF DEVELOPMENT IN POST COVID-19 ERA: A NORMATIVE THEOREM IN WORLD PERSPECTIVE.

Ensemble ◽  
2021 ◽  
Vol SP-1 (1) ◽  
pp. 30-34
Author(s):  
Somenath Halder ◽  
◽  
Sourav Paul ◽  
Keyword(s):  
Gross Domestic Product ◽  
Human Resource ◽  
Human Activity ◽  
Global Economy ◽  
Human Existence ◽  
Global Village ◽  
The World ◽  
To Come ◽  
World Perspective

The present study seeks to find a reliant philosophy of development in the post COVID-19 times to come. Since being contiguous, the Novelcoronavirus has switched almost every human activity uncertain all over the world. Rather the health emergency in this pandemic has strangled human existence on this planet which every country and government are fighting against. Like many others, global economy and development are under severe threat that tend us to chalk out a theorem to be mechanized for bringing the global village back into normalcy. The paper delves deeper to establish a connection of development with wellbeing, keeping human resource at the center of significance. It also measures the interrelation of wealth, economy and development with human resource and suggests a balanced prioritization of the same in terms of accelerating Gross Domestic Product (GDP). As the future after COVID 19 will not be the same like before, even after the pandemic being over, the proposed theorem tries to contemplate the global economy with a new outlook of long-term development.

scholarly journals Challenges in Design and Fabrication of Flexible/Stretchable Carbon- and Textile-Based Wearable Sensors for Health Monitoring: A Critical Review

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3927 ◽  
Author(s):  
Jae Sang Heo ◽  
Md Faruk Hossain ◽  
Insoo Kim
Keyword(s):  
Mechanical Properties ◽  
Human Activity ◽  
Health Monitoring ◽  
Critical Review ◽  
Wearable Sensors ◽  
Functional Materials ◽  
Effective Strategies ◽  
Mechanical Performances ◽  
Carbon Based

To demonstrate the wearable flexible/stretchable health-monitoring sensor, it is necessary to develop advanced functional materials and fabrication technologies. Among the various developed materials and fabrication processes for wearable sensors, carbon-based materials and textile-based configurations are considered as promising approaches due to their outstanding characteristics such as high conductivity, lightweight, high mechanical properties, wearability, and biocompatibility. Despite these advantages, in order to realize practical wearable applications, electrical and mechanical performances such as sensitivity, stability, and long-term use are still not satisfied. Accordingly, in this review, we describe recent advances in process technologies to fabricate advanced carbon-based materials and textile-based sensors, followed by their applications such as human activity and electrophysiological sensors. Furthermore, we discuss the remaining challenges for both carbon- and textile-based wearable sensors and then suggest effective strategies to realize the wearable sensors in health monitoring.

scholarly journals Modifiable reporting unit problems and time series of long-term human activity

2020 ◽  
Vol 376 (1816) ◽  
pp. 20190726 ◽  
Author(s):  
A. Bevan ◽  
E. R. Crema
Keyword(s):  
Time Series ◽  
Human Activity ◽  
Real World ◽  
Population Change ◽  
Theme Issue ◽  
The Impact

This paper responds to a resurgence of interest in constructing long-term time proxies of human activity, especially but not limited to models of population change over the Pleistocene and/or Holocene. While very much agreeing with the need for this increased attention, we emphasize three important issues that can all be thought of as modifiable reporting unit problems: the impact of (i) archaeological periodization, (ii) uneven event durations and (iii) geographical nucleation-dispersal phenomena. Drawing inspiration from real-world examples from prehistoric Britain, Greece and Japan, we explore their consequences and possible mitigation via a reproducible set of tactical simulations. This article is part of the theme issue ‘Cross-disciplinary approaches to prehistoric demography’.

scholarly journals Assessment of risks and threats to the development of artificial intelligence technologies

2021 ◽  
Vol 311 ◽  
pp. 06004
Author(s):  
Elena Shevchenko ◽  
Angelika Efremova ◽  
Dmitriy Titarenko ◽  
Aleksey Voloshin ◽  
Inga Artyukhova
Keyword(s):  
Artificial Intelligence ◽  
Information Systems ◽  
Human Activity ◽  
Intelligent Information Systems ◽  
Negative Results ◽  
Intelligent Information

The paper analyses the risks and threats caused by the development and implementation of artificial intelligence technologies. We believe that these risks and threats need research in the long term. Importantly, the use of intelligent information systems has a twofold effect: it can lead to both positive and negative results. The paper also considers the influence of artificial intelligence technologies on the various activities. It proposes a classification of risks and threats caused by the development and implementation of artificial intelligence technologies by the main spheres of human activity.

scholarly journals Botulism in Wild Birds and Changes in Environmental Habitat: A Relationship to be Considered

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1034
Author(s):  
Elena Circella ◽  
Antonio Camarda ◽  
Luca Bano ◽  
Giacomo Marzano ◽  
Roberto Lombardi ◽  
...  
Keyword(s):  
Human Activity ◽  
Toxin Production ◽  
Wild Birds ◽  
Natural Area ◽  
Short Term ◽  
Anas Crecca ◽  
Fulica Atra ◽  
Type C ◽  
Wildlife Reserve

Any human activity, even if aimed at the improvement of a natural area, can potentially affect wildlife, leading to possible short-term or long-term changes due to the human–wildlife interaction. In this study, a botulism outbreak which occurred in waterfowl in a nature reserve after a conservative environmental action is reported. More than 180 different species of wild birds, including seventy waterfowl species, live in the area. The wildlife reserve rangers built an artificial pond equipped with draining canals in the wetland in order to improve the environment of waterfowl species and to facilitate their supply of food. Then, presumably due to tidal rides, gray mullets (Mugil cephalus) arrived from the sea and settled in the pond. The number of fishes gradually increased, and several fishes died with a peak of mortality in the summer of 2017, creating a great amount of decaying organic material and the optimal conditions for Clostridium botulinum growth and toxin production. A botulism outbreak then occurred rapidly and was characterised by flaccid paralysis and sudden mortality of the birds. Seven mallard ducks (Anas platyrhynchos), 4 common teals (Anas crecca), 1 garganey (Anas querquedula), 2 wood sandpipers (Tringa glareola), 1 little egret (Egretta garzetta), 1 little grebe (Tachybaptus ruficollis), and 4 Eurasian coots (Fulica atra) were found dead. Interestingly, the toxin identified as responsible for the disease outbreak was the mosaic of type C and D toxins (C/D type). The prompt removal of the fish carcasses led to a rapid resolution of the outbreak of the disease, highlighting the relevance of a correct management for any action in environmental contexts. The conclusion is that any human activity in wildlife habitats should be carefully considered in order to assess the possible impacts and to quickly identify the possible risks of changes in wildlife population.

Towards a history of Holocene P dynamics for the Northern Hemisphere using lake sediment geochemical records

2021 ◽  
Author(s):  
Madeleine Moyle ◽  
John Boyle ◽  
Richard Chiverrell
Keyword(s):  
Human Impact ◽  
Lake Sediment ◽  
Northern Hemisphere ◽  
Human Activity ◽  
Lake Water ◽  
Process Model ◽  
P Cycling ◽  
History Of ◽  
P Supply

<p>Present day phosphorus (P) enrichment and accelerated P cycling are changes superimposed on a dynamic Holocene history of landscape recovery from glaciation, changes in climate, and long-term low-intensity human activity. Knowledge of the changing role of human activity in driving long-term P dynamics is essential for understanding landscape P export and managing both terrestrial and aquatic environments.</p><p>Here we apply a simple process model to published lake sediment geochemical P records from 24 sites distributed across the Northern Hemisphere, producing Holocene records of landscape P yield and reconstructions of lake water TP concentrations. These records are a first attempt to produce values for average P export for the Northern Hemisphere over the Holocene, which can be used for constraining long-term landscape P cycling models.</p><p>Individual site trajectories of reconstructed Holocene landscape P yield and lake water TP varied systematically, with differences attributable to landscape development history, in turn driven by climate, human impact and other local factors. Three distinct traits are apparent across the records. Mountain sites with minimal direct human impact show falling Holocene P supply, and conform to conceptual models of natural soil development (Trait 1). Lowland sites  where substantial (pre-)historic agriculture was present show progressively increasing Holocene P supply (Trait 2). Lowland sites may also show a rapid acceleration in P supply over the last few centuries, where high intensity land use, including settlements and farming, are present (Trait 3).</p><p>This long-term perspective is pivotal to understanding drivers of change in coupled terrestrial and aquatic P cycling. Our reconstructions of long-term lake water TP are particularly useful for target-driven management of aquatic systems.</p>

scholarly journals Influence of topography and human activity on erosion in Yunnan, SW China

2016 ◽  
Author(s):  
Amanda H. Schmidt ◽  
Thomas B. Neilson ◽  
Paul R. Bierman ◽  
Dylan H. Rood ◽  
William B. Ouimet ◽  
...  
Keyword(s):  
Land Use ◽  
Human Activity ◽  
River Sediment ◽  
Agricultural Land ◽  
Erosion Rates ◽  
The North ◽  
Small Watersheds ◽  
Basin Area

Abstract. In order to understand better if and where long-term erosion rates calculated using in situ 10Be are affected by contemporary changes in land use and attendant deep regolith erosion, we calculated erosion rates using measurements of in situ 10Be in quartz from 52 samples of river sediment collected from three tributaries of the Mekong River (median basin area = 46.5 km2). Erosion rates range from 12–209 mm/kyr with an area-weighted mean of 117 ± 49 mm/kyr (1 standard deviation) and median of 74 mm/kyr. We observed a decrease in the relative influence of human activity from our steepest and least altered watershed in the north to the most heavily altered landscapes in the south. In the areas of the landscape least disturbed by humans, erosion rates correlate best with measures of topographic steepness. In the most heavily altered landscapes, measures of modern land use correlate with 10Be-estimated erosions rates but topographic steepness parameters cease to correlate with erosion rates. We conclude that in some small watersheds we sampled, those with high rates and intensity of agricultural land use, that tillage and resultant erosion has excavated deeply enough into the regolith to deliver subsurface sediment to streams and thus raise apparent in situ 10Be-derived erosion rates by as much as 2.5 times over background rates had the watersheds not been disturbed.

Sign in / Sign up

Export Citation Format

Share Document