Results 41 to 50 of about 3,487,614 (309)

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Localic completion of uniform spaces

open access: yes, 2017
We extend the notion of localic completion of generalised metric spaces by Steven Vickers to the setting of generalised uniform spaces. A generalised uniform space (gus) is a set X equipped with a family of generalised metrics on X, where a generalised ...
Kawai, Tatsuji
core   +1 more source

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

open access: yesPopulation Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi   +3 more
wiley   +1 more source

Optimization of fracturing technology for unconventional dense oil reservoirs based on rock brittleness index

open access: yesScientific Reports
The concept of volume fracturing has revolutionized the conventional limits of low permeability, expanded the effective resource space, and significantly enhanced oil well production in tight oil reservoir development. This paper elucidates the mechanism
Huimei Wu   +5 more
doaj   +1 more source

Experimental study on hydraulic fracture propagation behavior in heterogeneous shale formations

open access: yesFrontiers in Energy Research
The study of fracture propagation in heterogeneous shale is a crucial prerequisite for the investigation of heterogeneous cluster and perforation parameters optimization.
Wang Bin   +11 more
doaj   +1 more source

Link Prediction via Matrix Completion

open access: yes, 2016
Inspired by practical importance of social networks, economic networks, biological networks and so on, studies on large and complex networks have attracted a surge of attentions in the recent years.
Cheng, Hong   +4 more
core   +1 more source

FoxO1 signaling in B cell malignancies and its therapeutic targeting

open access: yesFEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac   +3 more
wiley   +1 more source

Investigation of Rock-Breaking Mechanisms Based on the Adaptive Matching Method for Drilling Loads

open access: yesApplied Sciences
Considering stick–slip vibration and the impact loads formed while drilling in strongly heterogeneous formations or soft–hard interbedded formations, an adaptive matching drilling load method is presented in this paper to form dynamic drilling loads to ...
Huaigang Hu   +4 more
doaj   +1 more source

Neoadjuvant and adjuvant chemotherapy for muscle-invasive bladder cancer: The likelihood of initiation and completion

open access: yesIndian Journal of Urology, 2012
Introduction: Chemotherapy was shown to improve survival in patients undergoing radical cystectomy (RC) for muscle-invasive bladder cancer (MIBC). The initiation and completion rates for perioperative chemotherapy are variable.
Ahmed Eldefrawy   +5 more
doaj   +1 more source

Theory of Leadership and Guardianship with a Critical Approach toward Competing Theories [PDF]

open access: yesپژوهش نامه معارف قرآنی, 2011
Theory of leadership and guardianship is based upon Quranic verses and the traditions of the Prophet (PBUH) and the descendants of Imam Ali (PBUH); this theory can be understood and proved with an inner-religious attitude and it is a rational ...
mohamad javad rudgar
doaj   +1 more source

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