Results 71 to 80 of about 579,495 (286)

Leishmania infection induces a limited differential gene expression in the sand fly midgut

BMC Genomics, 2020
Background Sand flies are the vectors of Leishmania parasites. To develop in the sand fly midgut, Leishmania multiplies and undergoes various stage differentiations giving rise to the infective form, the metacyclic promastigotes. To determine the changes
Iliano V. Coutinho-Abreu, Tiago Donatelli Serafim, Claudio Meneses, Shaden Kamhawi, Fabiano Oliveira, Jesus G. Valenzuela   +5 more
doaj   +1 more source

Dynamic response at the terminus of oblique intersecting joints subjected to stress waves

Deep Underground Science and Engineering, EarlyView.
This study derives the propagation equation for stress waves impinging upon nonlinear oblique intersecting joints. It analyzes the dynamic response at the terminus of nonlinear oblique intersecting joints subjected to stress waves. Abstract To investigate the dynamic response at the terminus of oblique intersecting joints subjected to stress waves, a ...
Gang Hu, Xiang Chen, Honglu Fei, Shijie Bao, Jian Guo   +4 more
wiley   +1 more source

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

Deep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source

Phlebotomine sand flies (Diptera: Psychodidae) in the Greek Aegean Islands: ecological approaches

Parasites & Vectors, 2018
Background Blood-sucking phlebotomine sand flies are the vectors of the protozoan parasites Leishmania spp. Different Phlebotomus species transmit different Leishmania species causing leishmaniases which are neglected diseases emerging/reemerging in new ...
Nikolaos Tsirigotakis, Christoforos Pavlou, Vasiliki Christodoulou, Emmanouil Dokianakis, Christos Kourouniotis, Bulent Alten, Maria Antoniou   +6 more
doaj   +1 more source

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source

Energy evolution‐based damage quantification and failure prediction of fault zone tunnel lining concrete: A novel acoustic emission–strain energy coupling approach

Deep Underground Science and Engineering, EarlyView.
This study investigates the damage evolution and failure mechanisms of tunnel lining concrete in active fault zones through uniaxial compression tests integrated with acoustic emission (AE) monitoring. A strong linear correlation is identified between the AE cumulative absolute energy and the total strain energy, providing a reliable energy‐based ...
Shuaida Zhu, Dongming Zhang, Mingliang Zhou, Shengjun Duo, Hongwei Huang   +4 more
wiley   +1 more source

An assessment of the effects of pozzolanic activity on the behaviour of fly ash [PDF]

, 2000
This research used the ideas and methods, employed in previous studies of residual and weakly bonded soils, to help understand the shear strength and yielding characteristics of pozzolanically reacted fly ash.
Adams, Andrew, Adams, A.
core  

Thermal niche breadth shapes regional elevational range sizes of tropical‐like mountain stream insects: evidence for Janzen's tropical mountain passes hypothesis

Ecography, EarlyView.
The core of Janzen's tropical mountain passes hypothesis is that relatively stable annual temperature variation limits species' thermal tolerances breadth, which, in combination with steep elevational temperature gradients, constrains the elevational distributions of these species. In addition to thermal niche breadth, elevational ranges were shaped by
Tingting Zhou, Ramiro Martín‐ Devasa, Xiaodan Chen, Haojie Wang, Yuxin Tan, Zhifa Liu, Bo‐Ping Han, Lu Wang, Zhenyuan Liu, Janne Soininen   +9 more
wiley   +1 more source

Localizing value of ecstatic phenomenon in epilepsy surgery: A systematic review

Epileptic Disorders, EarlyView.
Abstract Objective A systematic review was conducted to synthesize current anatomo‐clinical correlations of ecstatic symptoms in focal epilepsy, aiming to provide evidence‐based guidance for interpreting this ictal semiology during presurgical evaluation.
Mihai Dragos Maliia, Fabrice Bartolomei, Fabienne Picard   +2 more
wiley   +1 more source

Sand Fly and Emerging Disease:Leishmaniasis

Asian Medical Journal and Alternative Medicine, 2012
Phlebotomine sand flies (Diptera: Psychodidae) is a dipteran which goes through four stages in its life cycle; egg, larva, pupa, and adult. Sand fl ies are the only proven vector of the Leishmania parasite. Leishmaniasis is caused by Leishmania spp., a parasitic protozoan of the Trypanosomatidae family and poses an in creasingly important threat in ...
openaire   +1 more source