بحث بسيط
السجلات المعروضة 5011 -- 5020 من 17466
Decomposition rate and stabilization across six tundra vegetation types exposed to >20 years of warming
(
Elsevier
, 2020 , Article)
© 2020 The Authors Aims: Litter decomposition is an important driver of soil carbon and nutrient cycling in nutrient-limited Arctic ecosystems. However, climate change is expected to induce changes that directly or indirectly ...
Scale effects on the relationships between land characteristics and ecosystem services- a case study in Taihu Lake Basin, China
(
Elsevier
, 2020 , Article)
© 2020 Elsevier B.V. It is generally recognized that marginal changes in landscape characteristics can influence multiple ecosystem services, but the causal relationships involved are still very unclear due to lack of ...
العلّة والحكمة والتّعليل بالحكمة: دراسة مُصطلحيّة
(
جامعة الأمير عبد القادر للعلوم الإسلامية
, 2017 , Article)
هدف هذا البحث إلى بيان المعاني التي ينطلق عليها لفظ العلّة والحكمة والتّمييز بينها، كما هدف إلى بيان معنى التّعليل بالحكمة وما يقابله من التّعليل بالـمَظِنّة. وبالاستقراء والتّحليل توصّل الباحث إلى أنّ لفظ العلّة في اللغة ...
A survey on service function chaining
(
Academic Press
, 2016 , Article)
Cloud computing is gaining significant attention and virtualized datacenters are becoming popular as a cost-effective infrastructure. The network services are transitioning from a host-centric to a data-centric model moving ...
Synthesis, Vibrational (IR), Thermal analysis and Quantumchemical Study of a Series of Cyclic Chalcones
(
Wiley-Blackwell
, 2016 , Article)
In this work, the influence of expanding the cyclic ring (adding methylene group) on the properties of three dimethylamino chalcones derivatives (1-3), is addressed, using a combined experimental (vibrational spectra (IR), ...
Effects of ambient climate and three warming treatments on fruit production in an alpine, subarctic meadow community
(
Wiley
, 2021 , Article)
Premise
Climate change is having major impacts on alpine and arctic regions, and inter‐annual variations in temperature are likely to increase. How increased climate variability will impact plant reproduction is ...
Visitors off the trail: Impacts on the dominant plant, bryophyte and lichen species in alpine heath vegetation in sub-arctic Sweden
(
Elsevier
, 2021 , Article)
Alpine ecosystems are under increasing pressure due to tourism and recreational activities. When leaving designated trails as is frequently observed, visitors can cause unintentional damage to vegetation. This study ...
The Effects of Ranitidine Treatment on the Risk of Necrotizing Enterocolitis in Preterm Infants: A Case-Control Study.
(
Faculty of Medicine - Hradec Králové - Karolinum Press
, 2021 , Article)
Gastric acidity plays an important role in the protection of infants against various pathogens from the environment. The histamine-2 receptor blockers (H2-blockers) are off-labeled drugs that are frequently prescribed in ...
Hybrid transparent conductive electrodes with copper nanowires embedded in a zinc oxide matrix and protected by reduced graphene oxide platelets
(
American Institute of Physics Inc.
, 2016 , Article)
Transparent conductive electrodes (TCE) were fabricated by combining three emerging nano-materials: copper nanowires (CuNWs), zinc oxide (ZnO) nano-particulate thin films, and reduced graphene oxide (rGO) platelets. Whereas ...
Outlook and challenges for hydrogen storage in nanoporous materials
(
Springer Verlag
, 2016 , Article)
Considerable progress has been made recently in the use of nanoporous materials for hydrogen storage. In this article, the current status of the field and future challenges are discussed, ranging from important open ...