Results 1 to 10 of about 49 (48)

Spatial pattern and structure analysis of natural and harvesting gaps in Hyrcanian forests using spatial statistics methods (Case study: Chamestan- Nour) [PDF]

مجله جنگل ایران, 2022
Spatial distribution and size of canopy gaps have important implications for light regime and regeneration, and affect species diversity. In this regard, the present study was conducted with the aim of investigating the spatial pattern and structure of ...
K.A. Zabihi, A. Mataji, R. Akhavan, S. Babaei Kafaki   +3 more
doaj   +1 more source

Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems

Ecological Indicators, 2021
With ongoing climate change at global scale we are currently losing biodiversity at an unprecedented rate. The insurance hypothesis and associated research, however, suggest that biodiversity has a major stabilising effect in ecosystems.
Arne Pommerening, Gongqiao Zhang, Xiaohong Zhang   +2 more
doaj   +1 more source

Analyzing the effect of clustered spatial distribution of mount Atlas mastic (Pistacia atlantica Desf.) trees on their biometric characteristics using mark-correlation function in Baneh Research Forest, Fars province [PDF]

تحقیقات جنگل و صنوبر ایران, 2017
The spatial distribution analysis of trees in arid and semi-arid regions presents valuable information about their interactions and impacts on one another.
Narges Kariminejad, Seyyed Yousef Erfanifard, Seyyed Rashid Fallah Shamsi, Hossein Sadeghi   +3 more
doaj   +1 more source

Analysis of shape and spatial interaction of synaptic vesicles using data from focused ion beam scanning electron microscopy (FIB-SEM)

Frontiers in Neuroanatomy, 2015
The spatial interactions of synaptic vesicles in synapses were assessed after a detailed characterization of size, shape, and orientation of the synaptic vesicles.
Mahdieh eKhanmohammadi, Rasmus eWaagepetersen, Jon eSporring   +2 more
doaj   +1 more source

Spatial pattern of Anagyris foetida L. shrubs in the Zagros forests [PDF]

مجله جنگل ایران, 2019
The aim of this study was to determine the spatial pattern and intra-specific interactions of Anagyris foetida shrubs in its unique habitat in the Zagros forests. For this purpose, 1-ha sample plot which is covered by relatively pure Anagyris foetida was
Armin Salimi, Farhad ghasemi aghbash, Morteza Pourreza   +2 more
doaj  

Human‐in‐the‐Loop Swarms: A Bionic Swarm Approach to Real‐World Soil Mapping

Advanced Intelligent Systems, EarlyView.
This article introduces the “Bionic Swarm,” a novel system that lowers the barriers to real‐world swarm validation by abstracting difficult hardware tasks to app‐guided human agents. We demonstrate the system's utility through the experimental validation of a geotechnical soil‐mapping swarm algorithm and show superior performance to baseline approaches
Petras Swissler, Mohammadali Rashidioun, Nicholas Sahu, Raaid Kabir, Ayodeji Aderibigbe, Oladoyin Kolawole   +5 more
wiley   +1 more source

Lost in aggregation? On the importance of local food price data for food poverty estimates

American Journal of Agricultural Economics, EarlyView.
Abstract This paper explores within‐country variations in food price dynamics and food poverty estimates by employing local market price data and national consumer price index (CPI) data. Our results show that national CPI data may be useful for approximating national trends but they fail to detect and identify spatial variations in local trends, which
Stephan Dietrich, Valerio Giuffrida, Bruno Martorano, Georg Schmerzeck, Marco Tiberti   +4 more
wiley   +1 more source

From Rare to Recurrent: Intensifying Hot–Dry Extremes Across Romania

International Journal of Climatology, EarlyView.
Romania has undergone a marked shift toward more frequent and spatially extensive compound hot–dry months since the 1990s, with persistent hotspots in the eastern Moldavian Plateau and the lower Danube–Bărăgan–Black Sea lowlands and comparatively buffered conditions at higher elevations.
Viorica Nagavciuc, Monica Ionita
wiley   +1 more source

Promises and limitations of deep learning for predicting knee osteoarthritis progression from medical imaging: A systematic review

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To systematically evaluate the performance, methodological quality, and translational barriers of deep learning (DL) models for predicting knee osteoarthritis (KOA) progression from medical imaging. Methods Following PRISMA guidelines, we searched PubMed, Scopus, and Web of Science (inception to June 2026) for peer‐reviewed studies ...
Amna Gillani, Rüdiger von Eisenhart‐Rothe, Klaus Woertler, Michael T. Hirschmann, Daniel Rueckert, Florian Hinterwimmer   +5 more
wiley   +1 more source

Scaling turbulence drives the general circulation

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley   +1 more source